Met One Instruments GAS-1030 Serinus 30 Carbon Monoxide Analyser User Manual
- June 10, 2024
- Met One Instruments
Table of Contents
Met One Instruments GAS-1030 Serinus 30 Carbon Monoxide Analyser
Product Information
GAS-1030 Carbon Monoxide Analyzer
The GAS-1030 Carbon Monoxide Analyzer is a Met One instrument that is
designed to measure the concentration of carbon monoxide gas in the air. This
analyzer meets the strictest quality and performance requirements expected of
Met One equipment. The product version is 3.3 and all the information
presented in the user manual is current, including analyzer specifications and
operating principles.
Specifications
The following are specifications for the GAS-1030 Carbon Monoxide Analyzer:
- Measurement Range: 0-1000 ppm
- Accuracy: ±3% of reading or ±2 ppm, whichever is greater
- Response Time: T90 < 60 seconds
- Warm-up Time: 15 minutes
- Operating Temperature: 0-50°C
- Operating Humidity: 0-95%, non-condensing
Installation/Decommission
Before installation, perform an initial check to ensure that the analyzer is in good condition. The analyzer should be installed on a stable surface with adequate ventilation and away from sources of electromagnetic interference. The instrument setup involves connecting the power cord, gas sample tubing, and communication cables. Refer to the Installation Notes section for detailed instructions.
Operation
After installation, allow the analyzer to warm up for at least 15 minutes before taking any measurements. The measurement range is from 0-1000 ppm with an accuracy of ±3% of reading or ±2 ppm, whichever is greater. Refer to General Operation Information section for detailed instructions on measurement and operation.
Communications
The GAS-1030 Carbon Monoxide Analyzer can communicate through RS232, USB, or
TCP/IP network communication. The instrument has an internal logging feature
that can be configured to store data.
Refer to the Communications section for detailed instructions on communication
and logging data.
Calibration
Calibration of the GAS-1030 Carbon Monoxide Analyzer is necessary to ensure accurate measurements. Calibration involves adjusting the analyzer to a known concentration of carbon monoxide gas. Refer to the Calibration section for detailed instructions on calibration.
USER MANUAL
GAS-1030
Carbon Monoxide Analyzer
Version 3.3
metone.com
Met One Instruments is now part of the Acoem Group. The Met One range of gas
analyzers was originally developed by Acoem under the brand name Serinus®.
For the purposes of expediting the availability of Met One gas analyzers to
Met One customers around the world; Met One Instruments have chosen to use the
original Serinus® operating manual.
Although the name of the Met One instrument is different, the analyzer itself
has remained unchanged and meets the strictest quality and performance
requirements expected of Met One equipment. All the information presented in
this manual is current, including analyzer specifications and operating
principles.
Met One will update this manual to reflect the new branding convention in due
course.
Serinus® 30 User Manual 3.3
Manufacturer’s Statement
Thank you for selecting the Ecotech Serinus® 30 Carbon Monoxide Analyser. The
Serinus series is the next generation of Ecotech designed and manufactured gas
analysers. The Serinus 30 will perform CO measurements over a range of 0 – 200
ppm with a lower detectable limit of 40 ppb. This User Manual provides a
complete product description including operating instructions, calibration and
maintenance requirements for the Serinus® 30 Carbon Monoxide Analyser.
Reference should also be made to the relevant local standards which should be
used in conjunction with this manual. Some of these standards are listed in
this manual. If, after reading this manual you have any questions or you are
still unsure or unclear on any part of the Serinus® 30, please do not hesitate
to contact Ecotech or your local Ecotech distributor.
Please help the environment and recycle the pages of this manual when you have
finished using it.
Notice
The information contained in this manual is subject to change without notice.
Ecotech reserves the right to make changes to equipment construction, design,
specifications and/or procedures without notification. Copyright © 2021. All
rights reserved. Reproduction of this manual, in any form, is prohibited
without the written consent of Ecotech Pty Ltd.
Page 12
Safety Information
Read all the safety information in this section prior to using the equipment.
To reduce the risk of personal injury caused by potential hazards, follow all
safety notices and warnings in this documentation.
The following internationally recognised symbols are used on Ecotech
equipment:
Table 1 Internationally Recognised Symbols
Protective conductor terminal
IEC 60417-5019
Alternating current Caution, hot surface
IEC 60417-5032 IEC 60417-5041
Caution, risk of danger to user and/or equipment Refer to any accompanying
documents
Caution, risk of electric shock
ISO 7000-0434 ISO 3864-5036
These symbols will also be found throughout this manual to indicate relevant
safety messages.
Note: Notes are used throughout this manual to indicate additional information
regarding a particular part or process.
If the equipment is used for purposes not specified by Ecotech, the protection
provided by this equipment may be impaired.
Foreword
Page 13
Serinus® 30 User Manual 3.3
Important Safety Messages
Disconnect Power Prior to Service Hazardous voltages exist within the
instrument. Do not remove or modify any of the internal components or
electrical connections whilst the mains power is ON. Always unplug the
equipment prior to removing or replacing any components. Replacing Parts
Replacement of any part should only be carried out by qualified personnel,
using only parts specified by Ecotech, as these parts meet stringent Ecotech
quality. Mains Supply Cord Do not replace the detachable mains supply cord
with an inadequately rated cord. Any mains supply cord that is used with the
instrument must comply with the safety requirements (250 V/10 A minimum
requirement). A mains power cord with a protective earth conductor must be
used. Ensure that the mains supply cord is maintained in a safe working
condition. Do Not Expose Equipment to Flammable Gases This equipment is not
intended for use in explosive environments, or conditions where flammable
gases are present. The user should not expose the equipment to these
conditions. Do not introduce any flammable gases into the instrument,
otherwise serious accidents such as explosion or fire may result.
Electromagnetic Compliance The instrument lid should be closed when in normal
operation, to comply with EMC regulations. Means of Lifting/Carrying
Instrument This instrument is a heavy and bulky object. Two persons should
lift/carry the object, otherwise use proper lifting equipment. Proper lifting
techniques should be used when moving the instrument. Internal Components Do
not insert a rod or finger into the cooling fans, otherwise injury may result.
Do not energise the instrument until all conductive cleaning liquids, used on
internal components, are dried up.
Page 14
Warranty
This product has been manufactured in an ISO 9001 facility with care and
attention to quality.
The product is subject to a 24-month warranty on parts and labour from date of
shipment. The warranty period commences when the product is shipped from the
factory. Lamps, filters and other consumable items are not covered by this
warranty.
Each instrument is subjected to a vigorous testing procedure prior to despatch
and will be accompanied with a parameter list and a multipoint precision
check.
Foreword
Page 15
Serinus® 30 User Manual 3.3
Service & Repairs
Our qualified and experienced technicians are available to provide fast and
friendly service between the hours of 8:30 am – 5:00 pm AEST Monday to Friday.
Please contact either your local distributor or Ecotech regarding any
questions you have about your instrument.
Service Guidelines
This manual is designed to provide the necessary information for the setup,
operation, testing, calibration, maintenance and troubleshooting of your
instrument. Should you still require support after consulting the
documentation, we encourage you to contact your local distributor for support.
To contact Ecotech directly, please e-mail our Technical Support Specialist
group at [email protected] or to speak with someone directly: Please dial
1300 364 946 if calling from within Australia. Please dial +61 3 9730 7800 if
calling from outside of Australia. Please contact Ecotech and obtain a Return
Material Authorisation (RMA) number before sending any equipment back to the
factory. This allows us to track and schedule service work and to expedite
customer service. Please include this RMA number when you return equipment,
preferably both inside and outside the shipping packaging. This will ensure
you receive prompt service. When shipping instrumentation, please also include
the following information:
Name and phone number Company name Shipping address Quantity of items being
returned Model number/s or a description of each item Serial number/s of each
item (if applicable) A description of the problem and any fault-finding
completed Original sales order or invoice number related to the equipment
Shipping Address: Attention Service Department Ecotech Pty Ltd 1492 Ferntree
Gully Road, Knoxfield, VIC, Australia 3180.
Page 16
Product Compliance and Approvals
The Serinus® 30 Carbon Monoxide Analyser, as manufactured by Ecotech Pty Ltd,
complies with the essential requirements of the directives listed below
(including CE compliance). The respective standards have been applied:
Low Voltage Directive (LVD) Directive 2014/35/EU
EN 61010-1:2010
Safety requirements for electrical equipment, for
measurement, control and laboratory use General requirements
Electromagnetic Compatibility (EMC) Directive 2014/30/EU
EN 61326-1:2013
Electrical equipment for measurement, control and laboratory use EMC requirements General requirements
Radio Equipment Directive (RED) 2014/53/EU
EN 300 328 V2.1.1
Wideband transmission systems Data transmission equipment operating in the
2.4 GHz ISM band and using wide
band modulation techniques
Regulatory Compliance Mark (RCM) Australia
AS/NZS 4268:2017
Radio equipment and systems Short range devices Limits and methods of measurement
ARPANSA Radiation Protection Standard
Maximum Exposure Levels to Radiofrequency Fields 3 kHz 300 GHz Radiation Protection Series Publicaiton No. 3: 2002
This analyser is also certified to a number of measurement standards refer to Section 1.2.8.
Foreword
Page 17
Serinus® 30 User Manual 3.3
Manual Revision History
Manual PN: Current revision: Date released: Description:
M010027 3.3 9 August 2021 User Manual for the Serinus® 30 Carbon Monoxide Analyser
This manual is the full user manual for the Serinus® 30 Carbon Monoxide Analyser. This manual contains all relevant information on theory, specifications, installation, operation, maintenance and calibration. Any information that cannot be found within this manual can be obtained by contacting Ecotech.
This manual uses cross reference links extensively throughout this manual. The hot keys below will greatly reduce the amount of time scrolling between references:
You can access the links by pressing the following: > CTRL + LEFT MOUSE CLICK: Move to the link location
You can switch between links by pressing the following: > ALT + LEFT ARROW
KEY: Returns you to previous Link > ALT + RIGHT ARROW KEY: Swaps back
Table 2 Manual Revision History
Edition 1.0 1.1 1.2
1.3
1.4
Date October 2008 February 2009 February 2009
November 2009
September 2010
Summary
Initial release
Updated communications
New maintenance procedures Updated instrument set-up Small corrections
Updates to menu system Serinus downloader software Internal pump option
Advanced parameter list
CE conformity added Updated parts list Pressurised zero/span valve added
Updates to rack mount option Updates to Serinus downloader Update to 25 pin
I/O Update to network communication Analog inputs Network adapter menu
Page 18
Edition 2.0
2.1 2.2 3.0 3.1 3.2 3.3
Date July 2012
March 2013 November 2013 December 2014 April 2016 June 2018 August 2021
Summary
New chassis Update menu system Add Bluetooth menu Serinus Remote Android App
Rack mount procedure update Analog output calibration
Update of manual drawings, pictures and content. Format updated.
Formatting updates Addition of Airodis installation steps
Auto-Ranging Power Supply added Main Controller and Rear Panel PCAs changed.
Trace option section
Safety Information updated Product Compliance & Approvals updated
Manual update to firmware 4.0.7 Rev. Q board. A number of changes to
descriptions, procedures and menu items. Standardization of naming convection
applied.
Foreword
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Serinus® 30 User Manual 3.3
This page is intentionally blank.
Page 20
Introduction
1.1 Description
The Ecotech Serinus 30 Carbon Monoxide Analyser uses Non-Dispersive Infrared
Spectrophotometry (NDIR) technology to measure CO in ambient air, in the range
of 0 – 200 ppm.
The U.S. EPA has designated the Serinus 30 Carbon Monoxide Analyser as a
reference method and TÜV has designated it as an EN approved instrument.
This section will describe the specifications of the instrument as well as the
main components and techniques used to obtain stable gas concentration
readings.
1.2 Specifications
1.2.1
Measurement
Range
0 – 200 ppm (autoranging)
U.S. EPA designated range: Any full scale range between 0 – 50 ppm
TÜV EN certification range: 0 – 100 ppm
Lower Detectable Limit
< 0.04 ppm (40 ppb), with Kalman filter active
1.2.2
Precision/Accuracy
Precision
20 ppb or 0.1% of reading, whichever is greater
Linearity
Better than ± 1% of full scale (0 – 50 ppm); ± 2% of full scale (0 – 200 ppm), from best straight-line fit
Noise at Zero
< 0.02 ppm or 0.2% of concentration reading whichever is greater
Response Time
60 seconds to 95%
Sample Flow Rate
1.0 slpm
Introduction
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Serinus® 30 User Manual 3.3
1.2.3
Calibration
Zero Drift
Temperature dependant:
0.01 ppm per °C
24 hours:
< 0.1 ppm
30 days:
< 0.1 ppm
Span Drift
Temperature dependant:
0.05% per °C
24 hours:
0.5% of reading or 0.1 ppm whichever is greater
30 days:
0.5% of reading or 0.1 ppm whichever is greater
1.2.4
Power
Operating Voltage
100 – 240 VAC (± 10%)
50 – 60 Hz
Overvoltage Category II
Power Consumption
190 VA (max at start-up)
115 VA (nominal)
1.2.5
Operating Conditions
Ambient Temperature:
0 – 40 °C (32 – 104 °F)
Relative Humidity:
10 – 80% (non-condensing)
Pollution Degree:
2
Sample Pressure Dependence: 5% change in pressure produces less than a 1% change in reading
Maximum altitude1:
2000 m above sea level
1 For higher altitude contact Ecotech for support/assistance.
Page 22
1.2.6
Communications
Analog Output
Three menu selectable current or voltage analog outputs.
Current output of 0 – 20 mA, 2 – 20 mA or 4 – 20 mA. Voltage output of 0 – 5
V, with menu selectable zero offset of 0 V, 0.25 V or 0.5 V. Voltage output of
0 – 10 V (configured using jumpers (JP3) on rear panel PCA). Range: User
scalable min and max range for analog output to suit application.
Analog Input Three analog voltage inputs (0 – 5 VDC) CAT I rated.
Digital Output RS232 port #1: Normal digital communication. RS232 port #2:
Multidrop port used for multiple instrument connections on a single RS232. USB
port connection on rear panel. TCP/IP port (optional). USB memory stick (front
panel) for data logging, event logging, parameter and configuration storage.
25 pin connector with discrete status and user control. o Eight Digital
Outputs, open collector max 400 mA each @ 12 VDC (max total output 2 A).
o Eight Digital Inputs, 0 – 5 VDC, CAT I rated.
1.2.7
Physical Dimensions
Case Dimensions
Rack length (front to rear):
622 mm (24.5″)
Total length (with latch release): 662 mm (26.1″)
Chassis width:
418 mm (16.5″)
Front panel width: Chassis height:
429 mm (16.9″) 163 mm/Uses 4 RU (6.4″)
Front panel height:
185 mm (7.3″)
Weight:
20.2 kg
1.2.8
Certifications
U.S. EPA approval (RFCA-0509-174)
EN approval TÜV (0000040203-02)
Introduction
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Serinus® 30 User Manual 3.3
EN approval MCERTS (MC100166/07) Australian Standard (AS 3580.7.1-2011) Russian approval (56262-14) French approval (LSCQA) Ukraine approval (12/3/B/24/295-17) Chinese Pattern Approval (JJF1364-2012) Korean approval NIER (AACMS-2017-02)
1.3 Nomenclature
CO Span Zero Background Multipoint Precision Check Calibration Zero Drift
Automatic Zero Zero Air
External Span Source Sample Air Exhaust Air
ID and OD Multidrop Bootloader
This is the abbreviation for carbon monoxide.
A gas sample of known composition and concentration used to calibrate/check
the upper range of the instrument (carbon monoxide).
Zero calibration uses zero air (CO scrubbed ambient air) to calibrate/check
the lower range of the instrument.
Draws air from the background port to compensate for changes in the IR source
and background interferences.
A procedure to verify the linearity of the instrument.
The process of adjusting the instrument to ensure that it is measuring the
correct concentration.
The change in the instrument’s response to zero air over a period of
continuous unadjusted operation.
The automatic zero performs a zero check at a specified time through a 24hour
cycle which adjusts the lower limit of the instrument.
Is purified air in which the concentration of CO is < 50 ppb with water vapour
of less than 10% RH. The internal CO-CO2 catalytic converter uses platinum
impregnated alumina beads heated to 90 °C as a conversion agent to achieve
this under ambient conditions.
Span gas that is delivered via an external accredited cylinder (e.g.
NATA/NIST).
Sample air is defined as the sample before it has entered the Measurement
cell, as distinguished from the exhaust air.
Exhaust air is the sample air after it has passed through the
reaction/measurement/detection cell and is moving towards being expelled from
the instrument.
These are measurements of tubing. ID is the internal diameter of tubing; OD is
the outer diameter.
A configuration of multiple instruments connected via the same RS232 cable.
A program that checks whether the current firmware is valid and executes the
instrument start-up. The Bootloader can be entered by pressing the `+’ key on
the front keypad during the first 1/2 second after power ON and
Page 24
PCA IR Slpm
following the prompts. The Bootloader enables various low level recovery
tools, including updating the firmware from a USB stick.
Printed Circuit Assembly. An electronic circuit mounted on a printed circuit
board to perform a specific electronic function.
Infrared. The region of the optical spectrum with a wavelength of around 4.7
microns.
Standard litres per minute. This is the flow referenced to standard
temperature and pressure conditions. For the purposes of this manual, all
flows are referenced to 0 °C and 101.3 kpa (1 atm).
1.4 Background/Theory
Carbon monoxide poisoning is the most common type of fatal poisoning in many industrialised countries3. Carbon monoxide is a colourless, odourless and tasteless gas caused by the incomplete combustion of hydrocarbon fuels.
Carbon monoxide is a toxic gas to the human body, when inhaled it binds to haemoglobin, myoglobin and mitochondrial cytochrome oxidase reducing oxygen storage, transport and respiration in these organelles.
This can affect humans by causing low level symptoms such as headaches, nausea and dizziness leading up to vomiting and loss of mental/muscular control at high exposure and death in extreme cases.
1.4.1
Measurement Theory
The measurement of carbon monoxide is completed via the following principles and measurement techniques:
CO absorbs infrared radiation (IR) at a wavelength near 4.7 microns. IR radiation (at 4.7 microns) is passed through a five-metre folded path length through sample air. The strength of the signal received is proportional to the amount of CO in the sample. A band pass filter is fitted to the signal detector to ensure only light near 4.7 microns wavelength is detected.
3 Toxicology. 2002 Nov 15;180(2):139 – 50
Introduction
Page 25
Serinus® 30 User Manual 3.3
Figure 1 Measurement Cell Theory
A gas filter correlation wheel is combined with this system. This wheel
contains three parts to increase measurement accuracy: CO, N2 and the mask.
The CO window contains saturation (40%) of CO which acts as a reference beam
absorbing a known amount of light.
The N2 window, containing 100% N2, does not absorb IR at 4.7 microns at all
and is used during normal CO measurement.
The mask totally blocks the light source and is used to determine background
signals, the strength of other signals relative to each other and the
background.
Figure 2 Correlation Wheel
1.4.2
Kalman Filter Theory
The digital Kalman filter provides an ideal compromise between response time and noise reduction for the type of signal and noise present in ambient air analysers.
The Kalman filter enhances measurements by modifying the filter time base variable, depending on the change rate of the measured value. If the signal is changing rapidly, the instrument is allowed to respond quickly. When the signal is steady, a long integration time is used to reduce noise. The system continuously analyses the signal and uses the appropriate filtering time.
Page 26
1.5 Instrument Description
The major components of the Serinus 30 are described below:
Figure 3 Internal Components Diagram
1.5.1
Calibration Valve Manifold
Refer to Figure 3 for the location of calibration valve manifold. The calibration valve manifold switches between sample, calibration and background gas.
Introduction
Figure 4 Calibration Valve Manifold
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Serinus® 30 User Manual 3.3
1.5.2
Sample Filter Holder
Refer to Figure 3 for the location of sample filter holder. Within the sample filter holder is a particulate filter. The particulate filter is a Teflon 5-micron (µm) filter with a diameter of 47 mm. This filter prevents all particles larger than 5 µm from entering the measurement system that could interfere with sample measurement.
Note: The 5-micron filter element should be replaced on a regular basis.
Figure 5 Sample Filter Holder
1.5.3
CO-CO2 Converter
Refer to Figure 3 for the location of CO-CO2 converter. The CO-CO2 catalytic converter uses platinum impregnated alumina beads heated to 90 °C as a conversion agent. The catalyst achieves conversion of 0 – 200 ppm CO to less than 0.1 ppm CO, even in the presence of up to 2% water.
Within the body of the CO-CO2 converter assembly, there is a heat exchanger used to precondition the sample gas up to temperature. The sample gas is then drawn into the measurement cell.
Page 28
Figure 6 CO-CO2 Converter
1.5.4
Measurement Cell
Refer to Figure 3 for the location of measurement cell. The measurement cell consists of the following components:
Figure 7 Measurement Cell
1.5.4.1
Cell
Refer to Figure 7 for the location of cell. The cell contains five mirrors that form a five-meter folded path length through the cell. The sample gas is drawn through the cell filling the chamber and the IR light travels through the sample. The Cell is maintained at a set temperature based on the cell set point, default is 50 °C. The cell pressure is monitored to compensate for pressure changes.
The mirror alignment in cell assembly is critical and is factory aligned. No attempt should be made to do a field adjust to the mirrors. Doing so will void the warranty.
CAUTION
Manually adjusting any of the mirrors or trying to access the internals of
this assembly may result in damage and will void the warranty.
1.5.4.2
Source Timing Assembly
Refer to Figure 7 for the location of source timing assembly. The source timing assembly consists of the following:
Refer to Section 9.8.
Introduction
Figure 8 Source Timing Assembly
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Serinus® 30 User Manual 3.3
IR Source The IR source emits broadband infrared radiation that irradiates the
filter in the correlation wheel.
Figure 9 IR Source Gas Filter Correlation Wheel Assembly The gas filter
correlation wheel contains three segments: a N2 filled sapphire chamber, a CO
filled sapphire chamber and a mask.
The N2 chamber allows all the IR radiation to pass through, which allows the
radiation to be absorbed by CO in the measurement cell and readings to be
recorded.
The CO filled chamber absorbs wavelengths sensitive to CO. The sample gas
(containing CO) in the measurement cell does not receive CO specific IR
radiation and the only detected signals registered by the IR detector are from
background sources and interference.
The mask blocks all IR light entering the cell. This allows the intensity of
the other two signals to be corrected for the detector response to no IR
radiation.
Figure 10 Gas Filter Correlation Wheel Assembly Opto-Detector The
correlation wheel has four tabs that act as an opto electronic switch ensuring
that the main controller PCA can determine accurate timing of the wheel and
the segment currently exposed to the IR radiation.
Page 30
Motor Assembly
The motor that drives the correlation wheel is a 12 VDC Brushless motor.
1.5.4.3
Detector Assembly
Refer to Figure 7 for the location of detector assembly. The detector assembly consists of the following:
Figure 11 Detector Assembly Narrow-Bandpass Filter The narrow bandpass
filter allows only the CO sensitive portion of the IR radiation to pass
through to the IR detector (4.7 microns) reducing noise and interference.
Figure 12 Narrow-Bandpass Filter IR Detector The IR detector is a cooled
lead selenide (PbSe) photoconductive IR detector. It creates an electrical
signal when wavelengths centred at 4.7 microns reach it.
Introduction
Figure 13 IR Detector
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Serinus® 30 User Manual 3.3
CO Detector PCA The detector PCA amplifies the signal from the IR detector and
it includes the trim pot to adjust the detector gain.
Figure 14 CO Detector PCA
1.5.4.4
Pressure Sensor PCA
Refer to Figure 7 for the location of pressure sensor PCA. The pressure sensor PCA has an absolutepressure transducer that is mounted on the measurement cell and sealed via a gasket. This allows the pressure sensor PCA to measure the sample air pressure in the measurement cell. This pressure reading is used to verify sample flow and correct measurement readings for pressure variations.
Figure 15 Pressure Sensor PCA
1.5.4.5
Orifice and Sintered Filter
Refer to Figure 7 for the location of orifice and sintered filter. The critical orifice is made of a high precision stainless steel and sapphire, which is located Inside the Kynar fitting on the end of the measurement cell. The critical orifice is a simple device that operates at a set temperature and requires minimal maintenance, it will passively keep the volume flow rate constant at a known value.
Page 32
Figure 16 Orifice and Sintered Filter
1.5.4.6
Heater and Thermistor
Refer to Figure 7 for the location of heater and thermistor assemblies. Two heater and thermistor assemblies are used in this instrument to keep the cell temperature at a stable and constant 50 °C. They are mounted on the top of the measurement cell and below the adjustable mirror mounting plate.
Figure 17 Heater and Thermistor
1.5.5
Main Controller PCA
Refer to Figure 3 for the location of main controller PCA. The main controller PCA controls all the processes within the instrument. As well as the on-board microprocessor, it contains a battery backed clock, calendar analog to digital converters and many other circuits for signal processing and control. The ambient pressure and chassis temperature sensors are also located on this board. The main controller PCA is located above all other components within the instrument. It pivots on hinges to allow access to the components underneath.
CAUTION
Never place objects on top of the main controller PCA as it may result in
damage.
1.5.6
Pneumatic Tubing
The pneumatic tubing inside this instrument is specially designed for use in Ecotech Serinus instruments. It has the flexibility of Silicone tubing with the added inner sheath of PVDF to prevent contamination of the sample. Care should be taken when removing and inserting the tubing into the barbed fittings.
Introduction
Figure 18 Ecotech Tubing
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Serinus® 30 User Manual 3.3
1.5.7
Rear Panel
Figure 19 Rear Panel
1.5.7.1
Rear Panel PCA
Refer to Figure 19 for the location of rear panel PCA. The rear panel PCA contains all the connections for external communications, including analog input, analog output, digital inputs, digital outputs, RS232, USB, and TCP/IP network connection (optional). Refer to Section 4.4.4 for details of all the jumper’s function.
1.5.7.2
Chassis Fan
Refer to Figure 19 for the location of chassis fan. The chassis fan is assembled to the back side of the instrument to maintain the Serinus 30 temperature. Fan filter is also installed with the fan to prevent the instrument from dust.
Note: Clean the chassis fan filter on regular interval (refer to Section 6.4.2).
1.5.7.3
Power Supply
Refer to Figure 19 for the location of power supply. The power supply is a
self-contained unit housed in a steel case designed to meet all the relevant
safety and EMC requirements. The new revision of power supply is different to
the previous revision as there is no need to set the operating voltage switch
because it is autoranging.
The output of the power supply provides +12 V, +5 V, -12 V and +3.3 V to the
instrument.
ON/OFF Switch
The ON/OFF switch is located on the rear panel (bottom right facing the rear
of the instrument), refer to Figure 20. It is part of the power supply.
Page 34
Figure 20 Power ON/OFF Switch
1.5.8
Communications
Communication between the instrument and either a data logger, laptop or network can be performed with the following communication connections located on the rear panel (refer to Figure 21). These connections can be used for downloading data, onsite diagnostics, maintenance and firmware upgrades.
Figure 21 Communication Connections RS232 #1
This port is designed to be used for simple RS232 communication.
RS232 #2
This port is designed to be used for simple RS232 communication or in
multidrop configuration.
USB
This port can be used for instrument communications with equipment through a
standard USB port.
TCP/IP Network (optional)
This port is best used for remote access and real-time access to instruments
when a network is available to connect with.
Analog & Digital I/O
The analog/digital port sends and receives analog/digital signals to other
devices. These signals are commonly used to activate gas calibrators or for
warning alarms.
Analog Outputs
The instrument is equipped with three user definable analog outputs. The
outputs are menu selectable as voltage output 0 – 5, 0.25 – 5 or 0.5 – 5 VDC
or current output 0 – 20, 2 – 20 or 4 – 20 mA. The current output can also be
configured as a voltage output of 0 – 10 V, by configuring the jumpers (JP3)
on the rear panel PCA. Refer to Section 4.4 for more detail.
Introduction
Page 35
Serinus® 30 User Manual 3.3
Analog Inputs The instrument is also equipped with three analog voltage inputs
(0 – 5 VDC CAT 1) with resolution of 15 bits plus polarity.
CAUTION Exceeding these voltages can permanently damage the instrument and
void the
warranty. Digital Status Inputs The instrument is equipped with eight logic
level inputs (0 – 5 VDC CAT 1) for the external control of zero/span
calibration sequences.
CAUTION Exceeding these voltages can permanently damage the instrument and
void the
warranty. Digital Status Outputs The instrument is equipped with eight open
collector outputs, which will convey instrument status conditions and warning
alarms such as no flow, sample mode, etc.
CAUTION Exceeding 12 VDC or drawing greater than 400 mA on a single output or
a total
greater than 2 A across the eight outputs can permanently damage the
instrument and void the warranty.
Bluetooth This allows for remote access of the instrument to any Android
device with the Serinus Remote Application installed on it. It uses Bluetooth
to control the instrument, view parameters, download data and construct real-
time graphs.
Page 36
Installation/Decommission
2.1 Initial Check
Packaging
The Serinus® 30 is transported in packaging specifically designed to minimise
the effects of shock and vibration during transportation. Ecotech recommends
that the packaging be kept if there is a likelihood that the instrument is
going to be relocated.
Note: The red plastic caps that seal the pneumatic connections during
transport must be removed prior to operation.
Items Received With the delivery of the Serinus 30, user will receive the following: Table 3 List of Items Received
Item Name Ecotech Serinus 30 analyser Green Ecotech Resources USB Stick Manual (hardcopy optional) USB Memory Stick USB Cable Keys for Slam Lock Data Sheet Drawing Sheet Power Lead (120 V) Power Lead (240 V)
Part No. E020030 H030137-01 M010027 H030021 COM-1440 C040007 C040006 C040008 C040009 C040010 C040054
Image Refer to Figure 22, callout 7. Refer to Figure 22, callout 10. Refer to Figure 22, callout 9. Refer to Figure 22, callout 8. Refer to Figure 22, callout 11. Refer to Figure 22, callout 12. Refer to Figure 22, callout 12. Refer to Figure 22, callout 2. Refer to Figure 22, callout 1. Refer to Figure 22, callout 3. Refer to Figure 22, callout 4. Refer to Figure 22, callout 5. Refer to Figure 22, callout 6.
*The power lead received depends on the power supply of the country (120 V or 240 V).
Note: Check that all these items have been delivered undamaged. If any item
appears damaged, contact your supplier before turning the instrument ON.
Note: It is recommended to kept packaging material for transport or storage
purpose.
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Serinus® 30 User Manual 3.3
Page 38
Figure 22 Received Item
Opening the Instrument Check the interior of the instrument with the following
steps: 1. Refer to Figure 23. Remove the thumb screws located on the rear
panel.
Figure 23 Opening the Instrument 1 2. Refer to Figure 24. Unlocked the
slam lock using keys provided with instrument.
Figure 24 Opening the Instrument 2 3. Refer to Figure 25. Open the chassis
lid latch by pressing in the slam lock located on the front panel.
Figure 25 Opening the Instrument 3
Installation/Decommission
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Serinus® 30 User Manual 3.3
4. Refer to Figure 26. To completely remove the lid, slide the lid backwards
until the rollers line up with the gaps in the track and lift the lid upwards
to remove from the instrument.
Figure 26 Opening the Instrument 4 5. Check that all pneumatic and
electrical connectors are connected. If not, reconnect. 6. Check for any
visible and obvious damage. If damage exists contact your supplier and follow
the
instructions in claims for Damaged Shipments and Shipping Discrepancies at the
front of this manual.
2.2 Installation Notes
When installing the instrument, the following points must be taken into
account: The instrument should be placed in an environment with minimal dust,
moisture and variation in temperature (refer to Section 2.4 and 2.5 for
specific approval set-up). For best results the instrument should be located
in a temperature and humiditycontrolled environment (air-conditioned shelter).
An enclosure temperature of 25 – 27 °C is optimum. Whether in a rack or placed
on a bench, the instrument should not have anything placed on top of it or
touching the case. Instruments should be sited with easy access to the front
panel (instrument screen/USB memory stick) and to the rear panel
(communication ports/pneumatic connections). It is recommended that the sample
line be as short as possible and/or a heated manifold be used for sampling
(minimising moisture condensation in the sample). Do not pressurise the sample
line under any circumstances. Sample should be drawn through the instrument
under atmospheric pressure. This should be achieved by either using the
internal pump option (if installed) or an external vacuum pump connected to
the exhaust port of the instrument. When supplying span gas, ensure the flow
is approximately 1.5 slpm and excess is sufficiently vented. Undo the travel
screws from the measurement cell as shown in the drawing supplied (refer to
Section 2.3.4). The chassis fan on the rear panel should be kept free of any
obstructions.
Page 40
Note: The power ON/OFF switch is accessible from the rear of the instrument
only. Install the instrument so that the ON/OFF power switch is accessible.
2.3 Instrument Set-Up
After installing the instrument, the following procedures should be followed
to ready the instrument for monitoring:
2.3.1
Figure 27 Instrument Rear Panel Power Connections
CAUTION Hazardous voltages exist within the instrument. Do not remove or
modify any of the internal components or electrical connections whilst the
mains power is ON.
CAUTION Always unplug the equipment prior to removing or replacing any
components.
CAUTION Do not replace the detachable mains supply cord with an inadequately
rated cord. Any mains supply cord that is used with the instrument must comply
with
the safety requirements (250 V/10 A minimum requirement).
CAUTION Ensure that the mains supply cord is maintained in a safe working
condition.
CAUTION When connecting the mains power to the instrument, the following must
be adhered to otherwise the safety and the reliability of the instrument may
be
compromised.
A three pin mains power cord with a protective earth conductor MUST be used.
The mains power outlet (wall socket) must be in the range of 100 – 240 VAC, 50
– 60 Hz.
Installation/Decommission
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Serinus® 30 User Manual 3.3
The mains power outlet must be protected by an earth leakage protection
circuit. Refer to Figure 28. Connect the instrument’s power cord into the
instrument and mains
power outlet.
Figure 28 Connect Power Cord Refer to Figure 29. Turn ON the power switch.
Figure 29 Turn ON Power Switch
2.3.2
Pneumatic Connections
The Serinus 30 has four pneumatic ports on the rear panel of the instrument, the Sample Port, the Calibration Port, the Exhaust Port and the Background Air Port. All tubing and fittings used should follow the instructions below:
Must be made of Teflon® FEP material, Kynar®, stainless steel, glass or any
other suitably inert material.
Sample line should be no more than two meters in length with 1/8″ ID and 1/4″
OD. Sample inlet pressure should not exceed 5 kPa above ambient pressure.
Tubing must be cut squarely and any burrs removed.
Page 42
Procedure 1. Refer to Figure 30. Remove all the dust plugs.
Figure 30 Dust Plugs 2. Refer to Figure 31. Remove the sample port nut.
Figure 31 Remove Nut 3. Inspect the ferrules inside the nut for correct orientation.
Figure 32 Ferrules Correct Orientation
Installation/Decommission
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Serinus® 30 User Manual 3.3
4. Replace the nut loosely, only 2 or 3 threads, on the sample port.
Figure 33 Replace Nut Loosely 5. Push the tubing into the end of the nut
until you hit the tube stop inside the fitting.
Figure 34 Insert Tube 6. Tighten clockwise until finger tight.
Page 44
Figure 35 Tighten Nut
7. Nuts should be re-tightened when instrument reaches operating temperature.
8. Follow the same above procedure to connect calibration, exhaust line and
background air line.
Sample Port
The sample port must be connected to an ambient source of sample air. When
using a sample manifold the Serinus requires at least 1.5 slpm delivered to
the sample manifold (1 slpm for measurement plus approximately 50% excess).
Calibration Port
The calibration port can be connected to the span/zero sources. It is
recommended that a gas dilution calibrator (Ecotech’s Serinus Cal 1000, 2000
or 3000) be used with a cylinder of carbon monoxide (CO) to deliver precise
concentrations of CO.
Note: All connections to this port should not exceed ambient pressure. A vent
is required for excess span gas.
Exhaust Port
The exhaust port is where the measured sample, calibration gases and
background air are exhausted from the instrument. The exhaust port should be
connected to the vacuum pump using 1/4″ OD tubing. The P030004 240 V vacuum
pump (P030005, 110 V) available from Ecotech, can be used to provide the
required vacuum and flow for one Serinus 30 analyser as well as two other
instrument such as a Serinus 10 or Serinus 50.
CAUTION Carbon monoxide (CO) is a toxic gas. It is recommended that exhaust
air is expelled into an unoccupied area, as it contains trace levels of carbon
monoxide. Furthermore, the exhaust must be a suitable distance from the sample
inlet to
avoid influencing the ambient measurements.
Background Air Port
The background air port is used to supply air to the CO-CO2 converter (CO scrubber) within the instrument. This is used for backgrounds and internal zero calibration.
2.3.3
Communications Connections
There are a number of ways to communicate with the instrument, refer to Section 4 for detail.
Installation/Decommission
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Serinus® 30 User Manual 3.3
2.3.4
Instrument Set-Up
1. Refer to Figure 36. Open the lid and make sure the USB memory stick is installed.
Figure 36 Installation of USB Memory Stick
2. Refer to Figure 37. Remove the travel screws from the measurement cell
(store in a zip lock bag within the analyser).
Figure 37 Travel Screw Locations 3. Refer to Figure 38. Check that the battery switch is turned ON at the main controller PCA.
Page 46
Figure 38 Switching the Battery ON/OFF
4. Turn ON the instrument and allow the warm-up procedure to complete (refer
to Section 3.1). 5. Set time and date (refer to Section 3.4.8). 6. Set the
digital filter to desired setting (refer to Section 3.4.9). 7. Set the
internal data logging options (refer to Section 3.4.23). 8. Set the analog and
digital inputs and outputs settings (refer to Section 3.4.25, 3.4.26, 3.4.27
and
3.4.28). 9. Perform a pressure sensor check (refer to Section 6.4.9). 10.
Perform a leak check (refer to Section 6.4.4). 11. Leave the instrument to
warm-up and stabilise for 4 hours. 12. Perform a manual background (refer to
Section 5.3). 13. Perform a span calibration (refer to Section 5.5). 14.
Follow the procedure for a multipoint precision check (refer to Section 5.7).
15. The instrument is now ready for operation.
2.4 U.S. EPA Reference Set-Up
The Serinus 30 is designated as reference method RFCA0509174 by the U.S. EPA
(40 CFR Part 53). The Serinus 30 must be used under the following conditions
to satisfy this approval:
Range 0 – 50 ppm
Ambient Temperature 20 – 30 °C
Line Voltage 105 – 125 VAC, 60 Hz
Pump Ecotech optional internal or external pump
Filter Factory setup to meet requirement:
Instrument Settings If the units in the measurement menu are changed from
volumetric to gravimetric (or gravimetric to volumetric) the instrument must
be re-calibrated. The following menu selections must be used:
Installation/Decommission
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Serinus® 30 User Manual 3.3
Measurement Settings Menu
Background Interval:
24 hrs
Calibration Menu
Span Comp:
Disabled
Diagnostics Menu
Press/Temp/Flow Comp: ON
Diagnostic Mode:
Operate
Control loop:
Enabled
The instrument must be operated and maintained in accordance with this User Manual.
The Serinus 30 analyser is designated U.S. EPA reference method with or without the following options/items:
Internal pump Rack mount assembly Optional Ethernet Port
2.5 EN Type Approval Set-Up
The Serinus 30 has been certified to TÜV performance standards for Continuous Ambient Air Quality Monitoring Systems. The certificate number is TÜV 936/21221977/D. The Serinus 30 must be used under the following conditions to meet EN requirements:
Range
0 – 100 ppm
Ambient Temperature
0 – 30 °C
Instrument Settings
The instrument must be operated and maintained in accordance with this user manual.
The following menu selections must be used:
Measurement Settings
Background interval:
24 hrs
Calibration Menu
Span Comp:
Disabled
Page 48
Diagnostics Menu Press/Temp/Flow Comp: Diagnostic mode: Control Loop:
ON Operate Enabled
2.6 Transporting/Storage
Transporting the instrument should be done with great care. It is recommended
that the packaging the instrument was delivered in should be used when
transporting or storing.
When transporting or storing the instrument the following points should be
followed:
1. Turn OFF the instrument and allow it to cool down. 2. Remove all
connections of pneumatic pipe, power cables and communication cables from the
instrument. 3. Refer to Figure 38. If storing over a long period (six months)
turn the battery OFF by moving the
switch (S1) on the main controller PCA. 4. Remove the instrument from the
rack. 5. Refer to Figure 39. Seal each pneumatic ports with a dust plug.
Figure 39 Dust Plugs 6. Refer to Figure 37. If transporting the instrument,
replace the travel screws.
CAUTION Major damage to the instrument components may occur in transit if the
measurement cell is not secured in place with the supplied transit screws.
7. Refer to Figure 36. Remove the USB memory stick and pack with instrument.
8. Place the instrument back into a plastic bag with desiccant packs and seal
the bag (ideally the bag
supplied upon delivery).
Installation/Decommission
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Serinus® 30 User Manual 3.3
9. Refer to Figure 40. Place the instrument back into the original foam and
box it was delivered in. If this is no longer available find some equivalent
packaging that provides protection from damage. Note: Ecotech recommended to
use the same packing material in which instrument is delivered.
10. The instrument is now ready for long term storage or transportation.
Note: After transport or storage the instrument must be set-up and calibrated
(refer to Section 2.3.4).
Figure 40 Packing Instruction
Page 50
Operation
3.1 Warm-Up
When the instrument is first turned ON it must go through a period of
adjustment and calibration. No measurements are taken during this warm-up
period. The following activities occur during warm-up:
Auto Ref. Adjust
Adjusts the reference voltage and internal trim pot setting
Auto Zero Adjust
Adjusts the zero offset
Heat CO Scrubber
The instrument progressively increases the temperature of the CO scrubber
until it reaches the desired temperature of 90 °C. When heating from cold, the
scrubber will take approximately 20 – 30 minutes to reach desired temperature.
Cell Temperature
Waits until the cell temperature reaches at least 90% of set point. After this
warm-up has completed the instrument will immediately begin making
measurements (refer to Section 3.2).
3.2 Measurement
The Serinus 30 primarily operates in the sample cycle continuously. A
background is performed after warm-up, once a day (at 23:45 as default) or
when the chassis temperature changes by 4 °C. It is used to measure background
absorption in the cell and is subtracted from sample measurements.
Table 4 Measurements: Background and Sample Cycles
Instrument State Background Fill
Background Meas CO Sample Fill CO Sample Meas
Duration (minutes) 3
1 3 Continuous
Description Measurement cell fills with background air Measurement of background air Measurement cell fills with sample air Measurement of sample air
Operation
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Serinus® 30 User Manual 3.3
3.3 General Operation Information
3.3.1
Keypad & Display
The instrument is operated with the use of four sets of buttons:
Figure 41 Front Panel
Selection Buttons (1)
The selection buttons will perform the function specified directly above it on
the screen. Generally this involves opening a menu, editing a value, accepting
or cancelling an edit or starting an operation.
Scrolling Buttons (2)
The scrolling buttons allow the user to scroll up and down through menus or
selection boxes. The scrolling buttons are also used to scroll side to side
through editable fields such as: Dates, Times, Numbers etc.
On the home screen these buttons are used for adjusting the screen contrast.
Press and hold the up button to increase contrast; press and hold the down
button to decrease.
Keypad (3) The keypad contains the numbers 0 – 9, a decimal point/minus key (.
) and a space/plus key (SPA+CE). In the few cases where letters can be
entered, the number keys act like a telephone keypad. Every time a number key
is pressed, it cycles through its choices. The up/down arrow keys scroll
through all the numbers and the entire alphabet.
Table 5 Front Panel Buttons Function
Button 1 2 3 4
Function 1 or space, underline 2, A, B, C, a, b, c 3, D, E, F, d, e, f 4, G, H, I, g, h, i
Page 52
Button 5 6 7 8 9 0 (SPA+CE) and key (. )
Function
5, J, K, L, j, k, l
6, M, N, O, m, n, o
7, P, Q, R, S, p, q, r, s
8, T, U, V, t, u, v
9, W, X, Y, Z, w, x, y, z
0 or space, underline
When editing a floating point number: The key (. ) inserts a negative sign if
the editing cursor is at the start of the number and negative signs are
allowed. Otherwise it moves the decimal place to the current cursor location.
inserts a positive sign if the cursor is at the start of the number; otherwise
it enters a space. For non-floating point numbers: These keys usually
increment or decrement the current value by 1. When editing the month field of
a date, the (SPA+CE) and (. ) key change the month.
Instrument Status Light Buttons (4)
Located in the top left corner, these lights indicate the status of the
instrument:
A red light indicates that the instrument has a major failure and is not
functioning. An orange light indicates there is a minor problem with the
instrument, but the instrument
may still take measurements reliably. A green light indicates that the
instrument is working and there are no problems.
In the case of an orange or red light illuminated go to the Status Menu to
find which components are failing (refer to Section 3.4.4) or press the orange
or red status light button to see the pop up box with a full list of current
faults.
Press the green status light button at any time to close any open edit box or
menu and return to the home screen.
If none of instrument status lights are ON and the keypad is backlit, this
indicates that the instrument is running the bootloader. The screen will also
indicate that it is in the bootloader menu.
Operation
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Serinus® 30 User Manual 3.3
3.3.2
Home Screen
The home screen is composed of seven parts: readings (1), error/status line (2), instrument activity line (3), selection buttons (4), time/date (5), concentration units (6) and USB status (7).
Figure 42 Home Screen Readings (1) Displays the concentration being measured
in real-time. The display can be configured to show just the instantaneous
data or the instantaneous and average data (refer to Section 3.4.8 Home
Screen). Error/Status Line (2) The error/status line provides the users with
information on any problems the instrument may have. It displays the highest
priority error or status condition contained in the Status Menu (refer to
Section 3.4.4). Instrument Activity (3) This line shows what function the
instrument is currently performing. Generally, it will show three groups of
actions: Warm-up, Measurement or Calibration. Selection Buttons (4) These
buttons are used on the home screen to enter one of two menus. The Quick Menu
(refer to Section 3.4.1) contains all information and features necessary for
scheduled maintenance. The Main Menu (refer to Section 3.4.2) contains all
information and fields available to the users and is generally only used
during initial set-up and diagnostics. Time and Date (5) The time and date are
displayed in between the menu buttons at the bottom of the screen.
Page 54
Concentration Units (6)
The instrument units are displayed in the bottom right corner of the display.
USB Detection (7)
A USB symbol will be displayed in the bottom right corner when the USB memory
stick is plugged in (the USB socket is behind the front panel). If the USB
symbol is not shown the USB memory stick should be inserted. Underneath, the
USB symbol arrows may be displayed which indicates data transfer. The USB
memory stick must not be removed whilst the arrows are visible.
Note: To safely remove the USB memory stick, navigate to the Quick Menu and
use the Safely Remove USB Stick function (refer to Section 3.4.1).
Operation
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Serinus® 30 User Manual 3.3
3.4 Menus & Screens
Menus & Screens
Quick Menu Main Menu
Status Menu
Analyser State Menu
General Settings Menu
Measurement Settings Menu
Calibration Menu
Temperature Menu
Pressure & Flow Menu
Voltage Menu
Pressure Calibration Menu
Flow Calibration Menu
Digital Pots Menu
Service Menu
Diagnostics Menu
Calculation Factors Menu
Data Logging Menu
Serial Communication
Menu
Analog Input Menu
Internal Pump Menu Valve Menu Tests Menu
Digital Input Test Menu
Digital Output Test Menu
Communications Menu
Analog Output Menu Digital Input Menu
Digital Output Menu
Network Menu
Bluetooth Menu
Trend Display Menu
Chart
Advanced Menu
Hardware Menu
Parameter Display Menu
Page 56
The menu system is divided into two sections selectable from the Home Screen: The Quick Menu and the Main Menu. The Quick Menu contains all information and operations necessary during scheduled maintenance visits. The Main Menu contains all fields that are accessible to the users. It provides information on component failures and measurement parameters as well as editable fields and test procedures.
In general, editable parameters are displayed in bold font. Non-editable information is displayed in a thin font. Some parameters may become editable based on the state of the instrument.
For example, the manual calibration type and mode can only be changed when the instrument has finished the warm-up process.
3.4.1
Quick Menu
The Quick Menu contains all the maintenance tools in one easy to use screen. It allows operators to perform calibrations, check important parameters and review the service history.
Span Calibrate CO
Event Log Instrument Safely Remove USB Stick
Figure 43 Quick Menu Screen
This field is used to perform a span calibration adjustment and should be only
used when a known concentration of span gas is being drawn through the
measurement cell and the reading is stable. Activating the span calibrate
field for a named gas will open a dialog box. Enter the concentration of the
span gas that the instrument is sampling and press Accept.
This field enters a screen with a log of all the events that the instrument
has performed. These events include errors and warnings. This log is stored on
the removable USB memory stick. The log is organised by month. When the user
enters this screen, they will be prompted to enter the month for which they
wish to view the events.
This field allows the instrument to be set to either Online (normal instrument
operation) or In Maintenance (data is flagged as invalid).
Always select this menu item before removing the USB memory stick or select
the same menu item from the Service Menu (refer to Section 3.4.13). Failure to
do this may cause corruption of the memory stick.
Operation
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Serinus® 30 User Manual 3.3
Instrument Gain Next Service Due
This is a multiplication factor which is used to adjust the concentration
measurement to the appropriate level (set by performing a Span Calibrate CO).
This should be recorded after each calibration in the station log book.
A field that notifies the user when the next instrument service is due. This
value is editable in the Next Service Due field of the Advanced Menu (refer to
Section 3.4.31). This field is only displayed in the two weeks prior to the
date displayed in this field or after the date has occurred.
3.4.2
Main Menu
There are six menus on the Main Menu screen.
Analyser State Menu General Settings Menu Measurement Settings Menu Calibration Menu Service Menu Communications Menu Trend Display Menu
Figure 44 Main Menu Screen
Refer to Section 3.4.3. Refer to Section 3.4.8. Refer to Section 3.4.9. Refer
to Section 3.4.10. Refer to Section3.4.13. Refer to Section 3.4.22. Refer to
Section 3.4.31.
Page 58
3.4.3
Analyser State Menu
Main Menu Analyser State Menu
This displays the status of various parameters that affect instrument measurements.
Status Menu Temperature Menu Pressure & Flow Menu Voltage Menu Model Nominal
Range Ecotech ID Serial No. Board Revision Firmware Ver.
Power Failure
Figure 45 Analyser State Menu Screen
Refer to Section 3.4.4. Refer to Section 3.4.5. Refer to Section 3.4.6. Refer
to Section 3.4.7. This field will display the instrument model (e.g. Serinus
30). The measurement range of the instrument. The Ecotech ID number. The main
controller PCA serial number. The main controller PCA version. This field
displays the firmware version currently in use on this instrument. This can be
important when performing diagnostics and reporting back to the manufacturer.
This field displays the time and date of the last power failure or when power
was disconnected from the instrument.
Operation
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Serinus® 30 User Manual 3.3
3.4.4
Status Menu
Main Menu Analyser State Menu Status Menu
The Status Menu presents a list of the current Pass/Fail status of the main components. During warm-up, the status of some parameters will be a dashed line.
Event Log
Show Error List
Next Service Due
Maintenance Mode +5V Supply +12V Supply +Analog Supply -Analog Supply A2D Cell
Temp. CO Scrubber Temp. Mirror Temp. Lamp/Source
Correlation Wheel Ref Voltage IR Source System Power
Figure 46 Status Menu Screen
This field enters a screen with a log of all the events that the instrument
has performed. These events include errors and warnings. This log is stored on
the USB memory stick. The log is organised by month. When the user enters this
screen they will be prompted to enter the month for which they wish to view
events. This field allows the user to display the list of current errors and
warnings on the screen. This field is visible with the next service due date
if the service is due within the next two weeks. Error if the system is “In
Maintenance” (refer to Section 3.4.13). Pass if the +5 V power supply is
within the acceptable range. Pass if the +12 V power supply is within the
acceptable range. Pass if the analog power supply is within the acceptable
range (+12 V). Pass if the analog power supply is within the acceptable range
(-12 V). Fail only if a problem is detected with the analog to digital
conversion. Pass if the cell heater temperature is within ± 10% of the heater
set point. Pass if the CO scrubber heater temperature is within ± 10% of 90
°C. Pass if the mirror heater temperature is within ± 10% of set point. Fail
if the reference voltage is less than 0.5 V and the input pot is over 250,
which can be caused by the IR source failing. Fail if the correlation wheel is
not functioning. Checks that the reference voltage is within acceptable limits
3.6 – 4.4 V. Checks that the IR source voltage is 5 ± 0.5 V. Pass if the
system has an adequate electrical supply.
Page 60
Diagnostic Mode Diagnostic PTF Comp Diagnostic Control Valve Manual Control
CO Conc. V Saturated
Bkgnd Conc. V Saturated
Pressure Calibration Flow Calibration [Internal Pump Option] Flow Fault
Cell Press > Ambient
Flow Block Temp. [Internal Pump Option] Chassis Temp.
USB Stick Disconnected Instrument Warmup Backgrounds Disabled
Error if the electronics are in Diagnostic Mode (refer to Section 3.4.14).
Error if the Pres/Temp/Flow Comp. is disabled (refer to Section 3.4.14). Error
if the control loop is disabled (refer to Section 3.4.14). Error if the valves
have been placed in manual control mode (refer to Section 3.4.17). Indicates
if the voltage of the concentration during measurement is within the limits of
the analog to digital converter (-0.26 V to 3.29 V). Indicates if the voltage
of the concentration during background measurement is within the limits of the
analog to digital converter (-0.26 V to 3.29 V). Error if the user is
performing a pressure calibration. Error if the user is performing a flow
calibration.
Ok when the instrument has acceptable sample flow based on the difference
between cell and ambient pressures. With the internal pump option this fault
is monitored by a flow sensor. This error occurs when the pressure inside the
instrument exceeds the ambient pressure. Pass if the flow block temperature is
within 10% of the heater set point (to keep a constant accurate flow).
Pass if the chassis temperature is within the acceptable limits (0 – 50 °C).
Detects whether a USB memory stick is plugged into the front USB port. Ok once
the instrument is out of warm-up status. Ok if backgrounds is enabled.
3.4.5
Temperature Menu
Main Menu Analyser State Menu Temperature Menu
Operation
Figure 47 Temperature Menu Screen
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Serinus® 30 User Manual 3.3
Temperature Units
Set Point (CELL)
Set Point (FLOW) [Internal Pump Option] Cell CO Scrubber Flow Block [Internal
Pump Option] Chassis
Mirror
Chassis Humidity
The current temperature units of the instrument (Celsius, Fahrenheit or
Kelvin). The temperature set point of the measurement cell. The factory
default is 50 °C. The temperature set point of the flow block heater. The
factory default is 50 °C.
Displays current temperature of the measurement cell. Displays current
temperature of the CO Scrubber. Displays the current temperature of the flow
block.
Displays the temperature of air inside the chassis, measured on the main
controller PCA. Displays the temperature of the end-cap mirror plate on the
measurement cell. Displays the humidity percentage of air inside the chassis,
measured on the main controller PCA board.
3.4.6
Pressure & Flow Menu
Main Menu Analyser State Menu Pressure & Flow Menu
Pressure Units
Ambient Cell Flow Units Flow Set Point [Internal Pump Option] Sample Flow
Figure 48 Pressure & Flow Menu Screen
Select the units that the pressure will be displayed in (torr, PSI, mBar, ATM
or kPa). Current ambient pressure. Current pressure within the measurement
cell. Select the units that the sample flow will be displayed in (slpm or
L/min). The desired sample flow.
Indicates the gas flow through the sample port of the instrument. The value
should be around 1.0 slpm. If there is an error with the sample flow, it will
read 0.00 slpm.
Page 62
3.4.7
Voltage Menu
Main Menu Analyser State Menu Voltage Menu
IR Source Conc. Voltage (RAW)
Conc. Voltage Ref. Voltage Flow Voltage [Internal Pump Option] Cooler Voltage
Opto. Strength
+5V Supply +12V Supply +Analog Supply -Analog Supply
Figure 49 Voltage Menu Screen
The drive voltage of the IR source 5 V ± 0.5 V. Voltage from the sensor
proportional to the detected signal from the measurement cell. This voltage
represents the actual measurement of gas. Displays the detector voltage after
PGA scaling. The reference voltage is a measure of the IR source intensity.
The current voltage measured from the flow block PCA.
Voltage of the peltier cooler within the IR detector (~1.25 V). The
measurement of the signal strength coming from the optodetector on the
correlation wheel. +5 V power supply. +12 V power supply. +12 V (primary)
power supply. The value should be within ± 2 V. -12 V (primary) power supply.
The value should be within ± 2 V.
Operation
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Serinus® 30 User Manual 3.3
3.4.8
General Settings Menu
Main Menu General Settings Menu
Decimal Places Conc. Units Reference Temperature [Gravimetric Units]
Temperature Units Pressure Units Flow Units Date Time Backlight
Home Screen
Char 0 has Slash
Figure 50 General Settings Menu Screen
Select the number of decimal places (0 – 5) used for the concentration
displayed on the home screen.
Sets the concentration units (ppm, ppb, ppt, mg/m3, g/m3 or ng/m3).
This option only appears if concentration units are set to gravimetric (mg/m3,
g/m3 or ng/m3). Select either 0 °C, 20 °C or 25 °C. This sets the standard
temperature used from conversion for measured volumetric values.
Select the units that temperature will be displayed in (Celsius, Fahrenheit or
Kelvin).
Select the units that the pressure will be displayed in (torr, PSI, mBar, ATM
or kPa).
Select the units that the sample flow will be displayed in (slpm or L/min).
Displays the current date and allows users to edit if required.
Displays the current time and allows users to edit if required.
Select the length of time the screen and keypad backlight remain ON after a
button press. The setting Always Off means the backlight never turns ON; the
setting Always On means the backlight never turns OFF and the setting Daytime
means the backlight will turns ON from 7 am to 7 pm or 30 minutes after any
operation.
This field allows the user to display concentrations on the Home Screen in two
formats. The first is Inst. only which displays only the instantaneous
concentration reading, the second is Inst & Avg which displays both
instantaneous and average concentration on the Home Screen. The average is
measured over the time period set in Measurement Settings Menu (refer to
Section 3.4.9).
When enabled, the instrument will display the zero character with a slash (0)
to differentiate it from a capital `O’.
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3.4.9
Measurement Settings Menu
Main Menu Measurement Settings Menu
Average Period Cal. Average Period
Min. Data Capture
Filter Type
Rolling Size [Rolling Filter] Backgrounds
Date [Backgrounds]
Figure 51 Measurement Settings Menu Screen
Set the time period over which the average will be calculated: Minutes (1, 2,
3, 4, 5, 6, 10, 12, 15, 20 or 30) or hours (1, 2, 4, 6, 8, 12 or 24) or
rolling hourly averages over the last (4 or 8) hours.
When Enabled can set the time period over which the calibration average will
be calculated when the system is in Cal. Mode SPAN or ZERO: Minutes (1, 2, 3,
4, 5, 6, 10, 12, 15, 20 or 30) or hours (1, 2, 4, 6, 8, 12 or 24) or rolling
hourly averages over the last (4 or 8) hours. Default is Disabled.
Controls how much of the previous time period needs to be included before the
average yields a number. The default is 0%, which reflects past behaviour of
the instrument: turning on a machine with 15 minute averaging any time between
1:01 1:14 with a setting of 0% would produce #### until 1:15 (because by 1:15,
there was at least 1 valid measurement to construct the average from).
However, a setting of 100% would mean the value stayed #### until 1:30
(because there needs to be a complete 15 minutes worth of measurements to
construct the average from).
Sets the type of digital filter used (None, Kalman, 10 sec, 30 sec, 60 sec, 90
sec, 300 sec or Rolling). The Kalman filter is the factory default setting and
must be used when using the instrument as a U.S. EPA equivalent method or to
comply with EN certification. The Kalman filter gives the best overall
performance for this instrument.
Sets the number of measurements included in the rolling average. Only
available if the Filter Type is set to Rolling.
The default setting is enabled. When enabled it allows the user to edit the
background interval via the following fields Time, Repeat and Units. When any
of the backgrounds fields are edited the instrument will automatically
calculate the date and time the next background is due to run and display
under each relevant field.
Displays the date that the next background is due to run.
Operation
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Serinus® 30 User Manual 3.3
Time [Backgrounds] Repeat [Backgrounds] Units [Backgrounds]
Edit and display the time that the next background will run. The time is set
using a 24-hour clock.
Defines an interval value for the repeat of the background based on the Units
selected. This field indicates the delay period; once the specified amount of
time has lapsed the background will automatically run again. The user can edit
this field but some restrictions apply depending on the Units selected.
Default is “1”.
This is where the user can define the type of units for the Repeat delay
period. For example: A Repeat of “1” and Units of “Days” means that a
calibration will automatically run every day at the defined time. Default is
“Days”.
3.4.10 Calibration Menu Main Menu Calibration Menu Calibrating the instrument should be done with care (refer to Section 5 before using these menus).
Cal. Type
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Figure 52 Calibration Menu Screen
Depending on the selection in this field, a number of extra menu items will be
displayed. These are separately documented in Manual Mode (refer to Section
3.4.10.1) and Timed Mode (refer to Section 3.4.10.2). Select the Cal. Type
field and select either Timed or Manual. Timed mode is an automatic
calibration controlled by the: Interval between cycles Length of each
calibration cycle Time when the calibration will begin Check only or automatic
compensation Timed calibration with span compensation enabled