ecom-ST Industry Leader Instruction Manual
- May 15, 2024
- ECOM
Table of Contents
ecom-ST Industry Leader
Specifications
- Model: ecom-ST
- Manufacturer: ecom GmbH
- Measuring Instrument Type: Stationary
- Intended Use: Semi-continuous exhaust gas measurement at combustion systems
Product Usage Instructions
1. Device Structure
The ecom-ST consists of various components including connections, keypad, interfaces (USB, RS485, Ethernet), analog outputs (optional), unheated gas sampling system, heated sampling system, and data storage.
2. Installation
Depending on the option chosen, the device can be wall-mounted with a protective housing or installed in a rack.
3. Starting Up
Ensure the device is properly connected to power and follow the startup procedure outlined in the manual.
4. Measurement Procedure
Prepare the device for measurement, conduct flue gas analysis, view measurement screens, perform draught measurement, and ensure CO overload protection is in place.
5. Control
Utilize the control features of the device as needed for your measurements.
6. Adjustments
Make adjustments including remote setup via Modbus, time control settings, and configuring analog outputs if applicable.
7. Data Processing
Utilize the data logger feature and establish data connection to a PC using ecom-DAS NT2 or ecom-DAS 5 software.
8. Maintenance
Regular maintenance includes checking and changing the fine dust filter, maintaining gas sensors, calibration procedures, and handling probe/tubing.
FAQs
- Q: What is the maximum measuring time for the ecom-ST?
- A: The maximum measuring time without interruption is 1 hour. Following this, a fresh air purging phase of at least 4 minutes with subsequent fresh air calibration of at least 1 minute is required.
- Q: How should I handle the device to prevent damage?
- A: Avoid moisture or frost exposure, contact with substances containing solvents, and prevent electrostatic discharge by grounding yourself before touching the device’s components.
- Q: Can the ecom-ST be exposed to strong electromagnetic fields?
- A: Strong electromagnetic fields can affect the device’s function, so it is advised not to expose it to such radiation.
“`
Intended Use
The ecom-ST is a stationary measuring instrument made by ecom GmbH, which is
intended for the semi-continuous exhaust gas measurement at combustion systems
and which is permanently installed on site. The device is operated either by
the internal time control or by time control via Modbus. A maximum measuring
time of 1 hour without interruption is possible. Afterwards, a fresh air
purging phase of at least 4 minutes with subsequent fresh air calibration (at
least 1 minute) must be carried out.
Scope of Delivery
· ecom-ST · Mains power cable 2,5 m · Kit of consumable spares · Protective
housing (option)
General Safety Information
WARNING
Risk of injury Improper work on combustion engines or combustion controllers
can lead to injuries. Work on such systems may only be carried out by
specialists.
WARNING
Risk of electric shock Live components are exposed when the housing is open.
Before opening the device, disconnect it from the power supply voltage.
CAUTION
Damage to the electronics Moisture or frost can damage the electronics. Do not
store the device in damp rooms or by temperature below 0C!
CAUTION
Damage to the sensors Substances containing solvents damage the device’s
sensors. Avoid contact with substances containing solvents!
CAUTION
Damage to electronic components Electrostatic discharge can damage electronic
components. Before touching the inside of the housing, touch a grounded
component!
NOTE
Strong electromagnetic fields can affect the function of the device. Do not
expose the device to any strong electromagnetic radiation!
NOTE
Check fine dust filter and PTFE filter regularly! Change filter when the grey
staining equals <3 on the soot dot comparison scale!
Device Structure
1.1 Components
1 Device with protective housing (option)
2 Key
3 Graphic display 5 Condensation pump 4 Fresh air inlet 6 PTFE filter
7
SO2/NOx filter for CO sensor
8
Gas cooler with fine dust filter
1.2 Connections
1 USB connection
4 Analog outputs (option) 7
Measuring gas outlet
2
Slot for multi media card (SD)
Mains power 5 connection – max.
cable length 3 m
8
Condensation outlet
3
Network connection
6
Mains supply ventilation fan
1.3 Keypad
Connection LED 1 (only by wireless
connection)
5
ESC key (quit/escape menu)
9
Store key
Info LED (for 2 indication of
instrument status)
6
Digital flow indication/flow meter
10
Info key (access to control menu)
Battery LED (for 3 indication of
charging status)
7
Enter key (confirm selection)
11 ON/OFF key
4
Function keys (assignment shown on display)
8
Cursor control (up/down/right/left)
NOTE
In input mode, the numerical function of the keys is used to enter figures.
1.4 Interfaces
1.4.1 USB
The device is equipped with an USB interface. The maximum cable length for
using the interface is 2 m. The USB port can be used to establish a connection
to a PC or laptop. Data can be recorded using the ecom PC software DAS NT 2 or
DAS5.
A driver is required for communication between the device and the ecom PC
software DAS NT 2 or DAS5. PC software and USB drivers are available free of
charge on the ecom GmbH website (see https://www.ecom.de/en/downloads/).
The following transmission parameters must be set for the two programs on the
ecom-ST (“Adjustments” /” Internal “/” USB “):
DASNT2 · 1200 Baud · Protocol DAS
DAS5 · 1200 to 38400 Baud (setting as in software ,,DAS5”) · Protocol Enhanced
1.4.2 RS485
An RS485 interface is available for connecting the device via Modbus RTU. The
ecom-ST supports a 2-wire topology (see figure).
The Modbus slave address is set to 0x2 in the delivery state. The maximum
cable length is 50 m. If the ecom-ST is used as a terminal device, a
termination of 120 is provided. The termination is active on delivery. Proceed
as follows to deactivate:
1. Disconnect the device from the mains voltage. 2. Loosen the knurled screws
on the front panel. 3. Open the front panel. 4. Set DIP switch 3 to OFF.
1 Knurled screw
2 Front plate
3 DIP switch
The cable for the data connection via Modbus RTU can be connected to the 8-pin connector. The plug is then plugged into the socket on the circuit board. The pin assignment is listed below.
1 Pin assignment 2 8-pin plug
3 8-pin socket 4 Position at device
NOTE
When using the RS485 interface, neither the USB nor the COM module must be set
to a Modbus protocol.
1.4.3 Ethernet
An Ethernet interface is available for connecting the device via Modbus TCP.
The ecom-ST can be integrated into a network via the LAN connection on the
front.
The following transmission parameters must be set at the ecom-ST
(“Adjustments” / “Internal” / “COM-Modul”):
· 115200 Baud (recommended adjustment) · Protocol Modbus/TCP
Upon delivery, the ecom-ST has the IP address “192.168.55.1”. To change it,
you have to configure a PC for this subnet. It is advisable to temporarily
configure the PC with the IP address “192.168.55.2”. The ecom-ST has a web
interface for configuring the IP address as well as user name and password. To
connect, enter the IP address “192.168.55.1” in the web browser (in this
example Opera). On delivery, the user name is “admin” and the password is
“PASSWORD”.
You can set the password for the administrator and for the creation of additional users under the menu item “User”.
To adapt the network configuration, you can change the network settings under “Network” by selecting “eth0” “Configuration”.
1.5 Analog outputs (option)
The device can be equipped with 8 analog outputs (4 mA – 20 mA). Channels 1 to
4 are available at socket 1 (lower socket) (see pin assignment socket 1).
Channels 5 to 8 are available at socket 2 (upper socket) (see pin assignment
socket 2).
Pin assignment socket 1
1 GND channel 4
4
2 Signal channel 4 5
3 GND channel 3
6
Pin assignment socket 2
Signal channel 3 GND channel 2 Signal channel 2
7 GND channel 1 8 Signal channel 1
1 GND channel 8
4 Signal channel 7 7 GND channel 5
2 Signal channel 8 5 GND channel 6
8 Signal channel 5
3 GND channel 7
6 Signal channel 6
Each channel can be assigned a measurement or calculation variable with free scaling (see chapter “Configuring the Analog outputs”).
Technical Data R_Load I_max U_L
600 Ohm at I_max 20 mA 15 V (open circuit voltage)
1.6 Unheated gas sampling system
The ecom-ST can be equipped with a so-called NOx tubing. The NOx tubing
effectively minimizes the washout losses of water-soluble gas components like
NO2 and SO2. Thanks to its smooth surface and the increased flow rate, the
condensation formation and the correlated washout impact are minimized.
NOTE
· Do not kink the NOx tubing! · Do not put the NOx tubing into
water!
1.7 Heated sampling system
By using the heated sampling system (option), the measurement of water-soluble
target substances (NO2 and SO2) is possible without washout losses. A hot gas
filter integrated in the probe head protects the device from premature
contamination. The maximum exhaust gas temperature when using the heated
sampling system is 500°C.
NOTE
· Do not kink the heated tubing! · Do not put the heated tubing into
water! · Clean or change the PTFE filter
regularly! ·
1.8 Data storage
If a SD card is inserted in the device, measurements can be saved. In order to
be able to make a recording, the SD card must be inserted into the SD card
slot as shown until it clicks into place completely.
NOTE
The SD card must have the following properties: · Maximal storage capacity: 32
GB (UHC card) · Formatting: 16-bit FAT / FAT32
CAUTION
Data loss Loss of data and damage to the data carrier are possible. Do not
pull out cards while data is being recorded! All values of a recording are
saved in a csv file with the name ” ST_DLxx.csv “. Successive files are
automatically numbered from 00.
Installation
NOTE
Fastening material is not included and must be selected on site according to
the individual circumstances.
2.1 Wall-mounting protective housing (option)
Dimensional drawing
NOTE
For mounting, kindly consider that the device with the housing weighs approx.
25 kg.
Install the device in a ventilated room only!
1. Pre-drill the mounting holes acc. to the dimensional drawing.
2. Depending on the wall and the individual conditions on site, screw the
protective housing to the wall.
NOTE
Do not use the as a storage space!
housing
2.2 Rack installation
NOTE
6 RU must be complied with!
3. Starting Up
1. Connect the gas sampling system to the device. 2. Connect the gas sampling
system to the extraction point. 3. Connect the power supply unit. 4. If
necessary, connect hose for fresh air supply (AIR-IN Gas
processing module). 5. Connect hose for condensate evacuation disposal. 6.
Switch on the device.
Measurement Procedure
4.1 Preparation
NOTE
Prior to each measurement, make sure that: · the device has no visible
defects. · the measuring system is tight.
Gas analysis Settings Control Remote setup
After switching on the device, the start screen is shown on the display and then the main menu. In the main menu 4 submenus are displayed.
Menu point Gas analysis Settings Control Remote Setup
Meaning Perform flue gas analysis Modify instrument settings Check operation state of instrument Adjust data transfer
4.2 Flue gas analysis
To perform measurements, select with the cursor keys the sub menu “Gas
analysis” and confirm with
Then the suitable fuel must be selected from a table.
Fuel types:
Fuel type
Fuel oil Natural gas City gas Coke oven gas Liquid gas
Fuel oil
CO2max A1 B
15.4
0.50 0.007
Select :
Use the cursor keys to select the desired fuel type and confirm with
Note
In the case of dusty or sooty combustion gases, a gas treatment system must be
installed upstream!
4.3 Measurement screens
The following measurement screens are available:
Flue gas analysis 1 + 2
Flue gas analysis 3
O2 CO2 T.Gas T.Air
Gas analysis
3.2 % 13.1 %
184 °C 20 °C
O2 CO2 CO Efficiency Losses Excess air T.Gas T.Air
Gas analysis
3.2 % 13.1 %
0 ppm 92.5 %
7.5 % 1.18
184 °C 20 °C
Flue gas analysis 4
T.Gas
°C
Gas analysis
Draught measurement
Draught meas.
-0.12 hPa
Stored value: -0.12 hPa
1 Hotkey
2
Switch off CO sensor key
3 Hotkey
4
Indication gas cooler switched on
5
Reset zero point draught sensor
With
Possible settings are: Fuel type, Eff. (C), Internal, Adjustments, Standby, Purge.
You can also switch to the measured value display from any menu item while
pressing
The CO sensor can be switched off with
With
Adjustment of the measurement screens
NOTE
The position of the measured and calculated values (flue gas analysis) can be
changed at user´s choice.
To change the position of the measured and calculated values in the
measurement screens 1 to 3, proceed as follows:
1. Activate the function with
The measured and calculated values in measurement screen 4 can be set with the
cursor keys (right / left).
4.4 Draught measurement
Pressure
Draught -0.12 hPa
Recorded value: -0.12 hPa
For an exact measurement, it is advisable to recalibrate the sensor as the
differential pressure sensor tends to drift due to its sensitivity. Disconnect
the draught hose on the device and press
4.5 CO overload protection
The CO sensor is protected from overload by the system. If the limit value of
2500 ppm or 4000 ppm (depending on the model) is exceeded at the CO sensor,
the additional internal fresh air flushing pump is switched on, which supplies
fresh air to the CO sensor. If the CO overload protection is active, the CO
indicator flashes in the status bar of the measurement screen and the status
LED
CAUTION
Damage to the CO sensor The CO sensor can be damaged if the opening for the
intake of fresh air (AIR-IN) for the CO sensor is obstructed. The fresh air
opening (AIR-IN) must always be free.
When the CO sensor has been sufficiently purged with fresh air (X disappears
behind CO) and the measured values are back within the permitted range, the
fresh air purging pump is switched off. The CO display in the status bar of
the measurement screen no longer flashes and the status LED
Control
The electrochemical sensors for gas analysis are exposed to a process of wear and tear and they do age. In the course of their use, they change their initial values depending on the gas concentration, the duration of exposure to gas and the degree of contamination of the measurement gas. The device monitors the sensors and corrects any deviation. However, if these deviations and thus the measurement error to be expected become too large, a message is displayed. In this case the measuring module has to be exchanged.
The current status values for the sensors are displayed in the “Control” menu. The cursor keys can be used to scroll through the 4 control screens.
Indication Sensor #### mV Battery #,## V Operation hours Total operation hrs Next unit check Service tel. Program version Serial number CO purges Error counter
Meaning Output voltage of sensor in mV Output voltage of battery Operation hours since last maintenance Total operation hours Date of next maintenance Phone number of next service centre Version of instrument firmware Serial number of the instrument Number of active CO switch-offs until now Number of error messages displayed since then
ecom GmbH
O2 19744 mV
Am Großen Teich 2 CO
7 mV
58540 Iserlohn Batt 8.09 V
Operation hours: 8.45 hrs
Total
: 18.75 hrs
Next unit check: 01.07.22 Service tel. :0800-945-5000
Further Pages:
Programmversion:V1.14 08.06.21
Serial no.
:ST-0001
CO purges
:15
Error counter :21
Operation hours: 8.45 hrs
Total
: 18.75 hrs
Next unit check: 01.07.22 Service tel. :0800-945-5000
Further Pages:
Indication Last service (history)
Meaning
The last maintenances of the device are listed: date of maintenance, operating
hours at the maintenance time.
Last service (history)
19.08.2017 25.08.2018 14.08.2019 23.08.2020 –.–.—.–.–
88 hrs 145 hrs 205 hrs 322 hrs
Further Pages:
Indication Sensor information
Meaning
Information as to age and calibration data of the sensors.
Further Pages:
Adjustments
Adjustments
Alignement Unit Second unit Ref. O2 Fuel type
Select:
Set clock Internal
In addition to the functions of the device already described, various settings can be made in the measuring device that affect the measuring procedures, the functionality or the output and display of measured values.
Parameter Alignment
Unit
Second unit Reference O2 Fuel type Clock set Internal
Meaning Calibration of the sensors
Conversion for the display of the gas concentration on the measurement screen
Second conversion of the gas concentration that can be displayed on the
measurement screen O2 oxygen reference Change of the set fuel type Adjustment
of internal clock Sub-menus for further adjustments — see following table —
Adjustment field See chapter calibration ppm mg/m³ mg/kWh(undiluted) mg/MJ
(undiluted) ppm (undiluted) mg/m³ (undiluted)
As under ,,Unit”
0,0 – 21,0 % Country-specific
NOTE
The units mg/kWh and mg/MJ are always calculated and displayed with a
reference oxygen content = 0 %.
NOTE
The specification “undiluted” denotes the conversion of the gas concentration
to a definable reference oxygen content according to the following formula:
Eref = Value converted to reference O2 Emeas = measured value O2ref =
reference O2 O2gem = measured O2 value
The following settings are available in the Settings / Internal menu:
Parameter Key beep
Meaning
Activation / deactivation of the acoustic signal when a button is pressed
Language: ### Language adjustment
Adjustment field Yes, No Country-specific
Colour scheme Setting of the colours used
F1 Hotkey
Assignment of the link with the
F4 Hotkey
Assignment of the link with the
Values options
Setting as to the values ETA, lambda and temperature
USB
Settings for the USB interface
COM module Settings for the COM interface
4 schemes to choose from
See chapter ,,Measurement Screens”
See chapter ,,Measurement Screens”
All setting channels in the table on the following page
All settings in the table on the following page
All settings in the table on the following page
The following settings are available in the Settings / Internal / Values options menu:
Parameter Temperature Exc. air
Eff. (C)
Meaning Not possible by all instruments
Excess air
Efficiency with or without condensate gain
Adjustment field °C or °F Ratio or %
ON, OFF
The following settings are available in the Settings / Internal / USB menu:
Parameter Transfer speed
Protocol
Adjustment field
1200 – 115200 Baud
Enhanced = DAS 5 DAS = DAS NT 2 Modbus RTU Modbus / TCP —- = none
The following settings are available in the Settings / Internal / COM module menu:
Parameter Transfer speed
Protocol
Adjustment field
1200 – 115200 Baud
Enhanced = DAS 5 DAS = DAS NT 2 Modbus RTU Modbus / TCP —- = none
NOTE
Only one Modbus application can be active, either Modbus RTU via RS485 or
Modbus / TCP via Ethernet.
6.1 Remote Setup
Remote Setup
Modbus Info Modbus Setup Auto timing Analog output Datalogger
Select:
Modbus, time control and analog outputs (option) can be configured in the Remote Setup menu. The menu item “Modbus Info” enables the control of the Modbus data sent and received. The menu item “Data logger” can be used to record measured values on a memory card.
6.1.1 Modbus
Info The following information is available:
Indication
Meaning
TxD buffer RxD buffer
Received data Sent data
Device address ecom-ST device address
Setup
The following settings can be made:
Example See ecomModbus See ecomModbus Standard setting 2
Parameter
Meaning
Device address
Change of the ecom-ST device address for Modbus RTU
Setting change
Entry after activation with Enter
Current values
Define assignment of measured Selection with cursor
value – memory address:
keys
1. Address 0x3000
Possible measurement
2. Address 0x3001 etc.
values, see next table
Stored values
Define assignment of measured Selection with cursor
value – memory address:
keys
1. Address 0x2000
Possible measurement
2. Address 0x2001 etc.
values, see next table
No. Measured value Meaning
1 T.Air
Air temperature in °C
2 T.Gas
Flue gas temperature in °C
3 T.Sensor
Sensor temperature in °C
4 O2
Oxygen content in vol. %
5 CO
Carbon monoxide content in ppm
6 NO
Nitric oxide content in ppm
7 NO2
Nitrogen dioxide content in ppm
8 SO2
Sulphur dioxide content in ppm
12 CO2
Carbon dioxide content in vol. %
13 Eta
Combustion efficiency in %
14 Losses
Gas losses in %
15 Lambda
Excess air as a ratio or in%
16 Air pressure
Ambient pressure in hPa
17 Draught/P
Pressure in chimney in hPa
18 CO
Carbon monoxide content (adjusted unit)
19 NO
Nitrogen monoxide content (adjusted unit)
20 NO2
Nitrogen dioxide content (adjusted unit)
21 SO2
Sulphur dioxide content (adjusted unit)
24 CO
Carbon monoxide content (adjusted 2nd unit)
25 NO
Nitrogen monoxide content (adjusted 2nd unit)
26 NO2
Nitrogen dioxide content (adjusted 2nd unit)
27 SO2
Sulphur dioxide content (adjusted 2nd unit)
28 NOx
Total nitrogen oxide content in ppm
29 NOx
Total nitrogen oxide content (adjusted unit)
30 NOx
Total nitrogen oxide content (adjusted 2nd unit)
31 Stat:
Not used
32 I.Flow
Gas flow I l/min
6.1.2 Time control
CAUTION
Invalid measurement results Sensor drift phenomena lead to higher
inaccuracies. Use the device only with time control!
The following settings can be made:
Parameter Meaning
Interval time Total time per cycle
Measuring time
Automatic
Time during which the measured values are available. At the end of the
measuring time, a data record is saved under 0x2000 and following.
Switching on the automatic mode. Operation without time control is not
permitted.
Adjustment change Entry after activation with Enter: 10 to 2550 minutes
Entry after activation with Enter: 5 to 60 minutes
ON / OFF after activation with Enter
6.1.3 Configuring the Analog outputs (option)
Gas analysis Adjustments Control Remote setup
31 Stat: 2 T.Gas
12 CO2 4 O2 5 CO 6 NO 7 NO2
28 NOx
20.0 0.00 0.00
0 0.0 0.0 0.0
400.0 °C 20.00 %
5.00 % 500 ppm
100.0 ppm 10.0 ppm
100.0 ppm
1. Switch on instrument. 2. Select “Remote setup” with Enter. 3. Select
“Analog outputs” with Enter. 4. Select desired value with cursor keys
(left/right). 5. Confirm with Enter. 6. Input 4 mA value via numerical keys.
7. Confirm with Enter. 8. Input 20 mA value via numerical keys. 9. Confirm
with Enter.
The status of the device can also be queried via the analog outputs (31 Stat :). It is only possible to assess whether the measured values are valid in connection with the status of the device. The table below lists all possible statuses.
Analog value 4 mA 6 mA 7 mA 8 mA 9 mA 10 mA
20 mA
Meaning Device error
Calibration phase not finished
Device on standby
Sample gas pump off
Fresh air purging active
Device in measuring mode, but the CO sensor is switched off Device in
measuring mode
NOTE
Valid measured values are only available if the status is 20 mA.
Data Processing
7.1 Data logger
NOTE
The data logger can only be used if an SD card is inserted in the device.
When an SD card is inserted in the device, a data logger recording can be
carried out. Depending on the set recording interval, the measured values are
saved one after the other on the SD card and combined in a file with the *
.csv format. The measured values can be evaluated using MS Excel or OpenOffice
CALC.
The following settings can be made in the Data processing / Data logger menu:
Parameter Data logger Storage time
CSV header
Meaning
Start/Stop
Recording interval
Setting whether column headings are included in the CSV file
Adjustment field Yes, No 1 s – 999 s
ON, OFF
When the data logger gets active or becomes active again after an
interruption, a new file is created on the SD card in which all subsequent
measured values of the recording are saved. The files have a predefined name
and are numbered consecutively.
Example:
· ST_DL-00.csv oldest file · ST_DL-01.csv · ST_DL-02.csv · ST_DL-xx.csv latest
file
7.2 Data connection to the PC
If the device is connected to a PC, measured values can be recorded with PC
software from ecom.
The following software solutions are available:
· ecom-DAS NT 2 · ecom-DAS 5
7.2.1 ecom-DAS NT2
In addition to the data logger recording, the data can also be transferred
directly to the PC software “ecom-DAS NT 2” while the measuring operation is
running.
The USB interfaces can be used for communication with the software. The
transmission speed and the protocol are predefined for smooth communication
between the device and the DAS NT 2 PC software via the USB interface.
To enable communication with the DAS NT 2 PC software, the following settings
must be made in the Settings / Internal / USB menu:
Parameter
Adjustment field
Adjustment for DAS NT 2
Transfer speed 1200 Baud – 115200 Baud 1200 Baud
Protocol
DAS = DAS NT 2 Enhanced = DAS 5 —- = none
DAS
NOTE
A driver is required for the communication between the device and the DAS NT 2
PC software via the USB interface. Download under:
https://www.ecom.de/en/downloads/
7.2.2 ecom-DAS 5
The software “ecom-DAS 5” can be used for the display and logging of measured
values and measured value progressions. Measurement data can be exchanged
between the software and the device via the SD card. A recording of point
measurements and course measurements during the measuring operation can be
implemented via USB.
The transmission speed and the protocol are predefined for smooth
communication between the device and the DAS 5 PC software via the USB
interface.
Parameter
Adjustment field
Adjustment for DAS 5
Transfer speed 1200 Baud – 115200 Baud 1200 Baud – 38400 Baud
Protocol
DAS = DAS NT 2 Enhanced = DAS 5 —- = none
Enhanced
NOTE
A driver is required for the communication between the device and the DAS 5 PC
software via the USB interface. Download under:
https://www.ecom.de/en/downloads/
7.3 ecomModbus
To integrate the ecom-ST into your existing software, please use the ecomModbus documentation.
Maintenance
To ensure the accuracy of your measuring device, we recommend to have the
modules checked annually by an authorized partner of ecom GmbH. In case of
heavy use, shorter inspection intervals should be considered. Just contact
your ecom partner this regarding!
NOTE
If sensors or probes from other manufacturers are used, the TÜV approval of
the device is no longer valid! Only use sensors or probes provided by ecom
GmbH or from an ecom-authorized service center!
NOTE
If service work is not carried out by ecom GmbH or a service center authorized
by ecom GmbH, the warranty for the device expires with immediate validity!
8.1 Fine dust filter
The fine dust filter should be checked regularly as follows: 1. Unscrew the
cover cap. 2. Check the condition of the fine dust filter. 3. Screw the cover
cap back.
NOTE
The fine dust filter should be changed when the grey colour value corresponds
to <3 of the soot comparison scale.
8.2 Gas sensors
The gas sensors are calibrated with fresh air as the reference gas each time
the device is switched on. New sensors age in the course of use due to wear
and tear of the reagents (oxygen sensor) and due to contamination or exposure
to concentrations above the nominal measuring range (toxic sensors). The
condition of the sensors is permanently monitored by the device. In the
“Control” menu, the values for the output voltage of each installed gas sensor
can be checked. The reference values of the sensors are:
Sensor O2 Others
Reference value output voltage 12000 mV 0 mV (±150 mV)
NOTE
The O2 sensor must display a value >7000 mV. If this is not the case, the
sensor must be replaced. Contact the ecom service centre next to you!
NOTE
If an error message occurs during the calibration phase, a further calibration
phase can help to calibrate the sensors sufficiently. If the error message
persists, the device must be checked.
NOTE
The CO sensor is protected from high concentrations by overload protection
(see chapter “CO overload protection”).
8.3 Calibration
The sensors can be calibrated by using the menu “Adjustments” / “Calibr. sensors”. When the calibration menu is selected, the device switches to the Air-IN gas input on the gas processing module. Here the calibration gas must be applied without pressure. Proceed as follows:
-CO / NO / NO2 / SO2 calibration
(Important: Span gas must get pressure-free to the instrument!)
-Flow with span gas
-Wait for stabilisation of value
Span gas used by ecom
-By drift press
(appoximate value):
-Set correct value with number keys -Confirm input with
-T. Gas / T. Air calibration -Create reference temperature -By drift press
Sensor CO;O2 NO NO2 SO2 CO%
Span gas
400 ppm CO with 2% O2 rest N2
90 ppm NO rest N2
90 ppm NO2 rest synthetic air
100 ppm SO2 rest N2
3% CO rest N2
-Confirm input with
8.4 Removal / re-installation of modules
8.4.1 Gas measuring module
Removal 1. Pull off the hoses. 2. Loosen the 4 screws fixing the gas
measuring module. 3. Pull the gas measuring module out of
the device.
Reinstallation Insert gas measuring module into device. Tighten the 4 screws.
Push the hoses onto the turned parts.
8.4.2 Gas processing module
Removal 1. Pull off the hoses. 2. Loosen the 4 screws. 3. Pull the gas
processing module out
of the device.
Reinstallation 1. Insert gas processing module into
the device. 2. Tighten the 4 screws. 3. Slip the hoses over the turned parts.
8.5 Probe/Tubing
Depending on how the device is used, the probe and hose should be cleaned
regularly in order to remove particle deposits and prevent premature wear due
to corrosion. The hose can be cleaned after loosening all plug connections on
the device and on the probe handle. The O-rings of the hose connections should
occasionally be lightly greased with acid-free lubricant.
CAUTION
Damage to the device / transport system The hot flue gas probe can damage the
device or the transport system if it comes into contact with. Let the probe
cool down before storing!
8.6 SBK system (option)
The PTFE filter in the probe head should be changed regularly.
Technical Data
Measured values O2 CO CO H2- comp. CO% NO NO Extra Low NO2 NO2 Low SO2 SO2 Low H2 H2S CO2 CO2 CH4 CxHy T-Gas T-Air pressure Air pressure
Range EC 0 vol. % – 21 vol. % EC 0 ppm – 4000 ppm EC 0 ppm – 10.000 ppm EC 0
ppm – 63.000 ppm EC 0 ppm – 5000 ppm EC 0 ppm – 300 ppm EC 0 ppm – 1000 ppm EC
0 ppm – 100 ppm EC 0 ppm – 5000 ppm EC 0 ppm – 100 ppm EC 0 ppm – 20.000 ppm
EC
IR 0 vol.% – 20 vol.% IR 0 vol.% – 100 vol.% IR 0 vol.% – 5 vol.% K 0 vol.% –
4 vol.% T 0 °C – 500 °C PT 0 °C – 99 °C D 0 hPa – ± 100 hPa D 300 hPa – 1100
hPa
Accuracy ±0,3 vol. % ±20 ppm / 5 % MV ±20 ppm / 5 % MV ±100 ppm / 5 % MV ±5
ppm / 5 % MV ±2 ppm / 5 % MV ±5 ppm / 5 % MV ±5 ppm / 5 % MV ±10 ppm / 5 %
MV ±5 ppm / 5 % MV ±100 ppm / 5 % MV ±10 ppm / 5 % MV ±0,5 vol. % / 5 %
MV ±5 vol. % ±0,2 vol. % / 5 % MV
±2 °C / 1,5 % MV ±1 °C ±0,5 hPa / 1 % MV* ±2 hPa
EC = Electrochemical sensor IR = Infrared sensor K = Catalytic Sensor
T = Thermocouple NiCr-Ni PT = PT 2000 D = DMS bridge MV* = Measured value
(higher value prevails)
Calculated values CO2 Efficiency (ETA) Losses Excess air (Lambda) Dew point mg/m3 mg/kWh O2 reference
Range 0 – CO2max 0 % – 120 % 0 % – 99,9 % 1 – x °C x mg/m3 x mg/kWh x % O2
Principle Calculation Calculation Calculation Calculation Calculation Calculation Calculation Calculation
Further data Power supply Ambient temperature Air humidity ecom-ST Dim. (W x H x D) Weight Protective housing Dim. (W x H x D) Weight
110 V – 230 V AC, internal battery 7,4 V 3,45 Ah +5°C – +40°C max. 90 % rH,
non-condensing
Approx. 483 (19″) mm x 266 (6HE) mm x 196 mm Approx. 8,6 kg (option) Approx.
600 mm x 350 mm x 265 mm ecom-ST with protective housing approx. 25 kg
NOTE
Subject to technical changes! (Status 10 2023)
Disposal
Take used batteries to the designated collection points! Dispose of packaging
material in an environmentally friendly manner! Used devices must be disposed
of in an environmentally friendly manner by an authorized agency.
FAQ
NOTE
On request, we can take back used devices and dispose of them in an
environmentally friendly manner.
Where can I find important instrument information?
The instrument shows the error message “O2 sensor mV too low” The instrument
shows the error message “xx sensor mV too high”
Important device information can be called up with the Info button (Control
menu):: · Serial number · Service phone number · Sensor voltages · Sensor
information · Error counter · Operation hours etc.
The sensor module must be replaced. The sensor module must be replaced.
ecom GmbH Am Großen Teich 2 D-58640 Iserlohn Info@ecom.de www.ecom.de
Phone: +49 2371 945-5 Fax: +49 2371 40305
UK importer:
DRM Technic Ltd. Unit 25 Raleigh Hall Industrial Estate, Stafford,
Staffordshire, ST21 6JL, UK
sales@drmtechnic.com
www.drmtechnic.com
Phone: +44 (0) 1785 556 593
References
- Gas Analysis | Instrumentation | Control | DRM Technic
- Messgeräte zur Abgasanalyse, Druckmessung & Lecksuche | ecom
- Messgeräte zur Abgasanalyse, Druckmessung & Lecksuche | ecom
- Gas Analysis | Instrumentation | Control | DRM Technic
- Download Area - ecom
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>