HAMILTON 10070760-1111 VisiFerm mA Sensors Instruction Manual

10070760-1111 VisiFerm mA Sensors
Instruction Manual

Hamilton Warranty
Please refer to the General Terms of Sales (GTS).
Important note
Copyright © 2021 Hamilton Bonaduz AG, Bonaduz Switzerland. All rights reserved. The reproduction of any part of this document in any form is forbidden without the express written agreement of Hamilton Bonaduz AG.
Contents of this document can be modified without previous announcement. Technical modifications reserved. Greatest possible care was used on the correctness of the information in this document. If errors should be discovered nevertheless, Hamilton Bonaduz AG is pleased to be informed about it. Regardless of this, Hamilton Bonaduz AG cannot assume liability for any errors in this manual or for their consequences.

General information

1.1 Intended Use
The VisiFerm mA sensors are intended for the measurement of dissolved oxygen (DO) and oxygen in gas phase (dust environment). The VisiFerm mA sensor is certified for use in explosive atmosphere. If these sensors are used in explosive atmospheres, the instructions in the chapter 3.3 must be followed. If the sensor is used in contact with gaseous or liquid organic solvents, the resulting measurement accuracy in this application must be separately checked and validated by the customer.

Attention! The VisiFerm mA sensor has a built-in temperature sensor (NTC 22kΩ). This temperature sensor is to be used only for monitoring the sensor conditions, not  for controlling the process temperature.
Attention! The measurement values transmitted over wireless communication are not intended to be used for process control.
Attention! The VisiFerm mA sensor can only be autoclaved with the corresponding autoclavation cap.

NOTE: The VisiFerm mA shaft is made of stainless steel $ compliant with biopharma requirements (Stainless steel 1.4435). Because of manufacturing process, different stainless steel heat numbers may be used. For the wetted steel surfaces > 1%, the corresponding material certificates according to the Order EN 10204-3.1.B are delivered with the sensor in paper format or can be alternatively downloaded from hamiltoncompany.com.

1.2 About this Operating Instruction
These Operating Instructions are designed to support the integration, operation and qualification of the VisiFerm mA sensors. To achieve this, it will describe the features of  VisiFerm mA and its integration in Process Control Systems (PCS). Both the hardware and the communication between the VisiFerm mA and Process Control Systems are  detailed in this manual. After reading this manual the user should be capable of installing and operating VisiFerm mA sensors.

Attention ! Essential information for avoiding personal injury or damage to equipment.
NOTE: Important instructions or interesting information.

Liability

The liability of Hamilton Bonaduz AG is detailed in the document «General Terms and Conditions of Sale and Delivery».
Hamilton is expressly not liable for direct or indirect losses arising from use of the sensors. It must in particular be insured in this conjunction that malfunctions can occur on account of the inherently limited useful life of sensors contingent upon their relevant applications. The user is responsible for the calibration, maintenance and regular replacement of the sensors. In the case of critical sensor applications, Hamilton recommends using back-up measuring points in order to avoid consequential damages. The user is responsible for taking suitable precautions in the event of a sensor failure.
NOTE: The VisiFerm mA sensor is not intended and specified as a safety device. A SIL (Safety Integrity Level) certification is not available. It is in the sole responsibility of  the user to validate the VisiFerm mA sensor according the safety requirements of his application.

Safety Precautions and Hazards

3.1 General Precautions
For safe and correct use of VisiFerm mA, it is essential that both operating and service personnel follow generally accepted safety procedures as well as the safety instructions given in this document, the VisiFerm mA operating instructions. The specification given in the «Specification Sheet» as regards temperature, pressure etc. may under no circumstances be exceeded. Inappropriate use or misuse can be dangerous.
The lifetime of the VisiFerm mA highly depends on the specific conditions of the application. Temperature, pressure, chemicals used may accelerate the ageing of both the sensor and its ODO cap. See chapter 7 for maintenance. Cleaning, assembly and maintenance should be performed by personnel trained in such work. Before removing the sensor from the measuring setup, always make sure that no process medium can be accidentally spilled.
When removing and cleaning the sensor, it is recommended to wear safety goggles and protective gloves. The sensor can not be repaired by the operator and has to be sent back to Hamilton for inspection. Necessary precautions should be taken when transporting the sensors.
For repair or shipment the sensor should be sent back in the original reusable packaging box. Every VisiFerm mA sent back for repair must be decontaminated.
If the conditions described in these operating instructions are not adhered to or if there is any inappropriate interference with the equipment, all of our manufacturer’s  warranties become obsolete.

3.2 Operation of VisiFerm mA Sensor
When using the VisiFerm mA sensors in process environment suitable protective clothing, safety glasses and protective gloves must be worn, particularly when dealing with a malfunction where the risk of contamination from spilled liquids exists. Installation and maintenance of sensors must be performed only by trained personnel. The mobile devices and sensors must be used for their intended applications, and in optimum safety and operational conditions.
Use only wired digital or analog connection for the process control. The Arc wireless interface is designed for sensor monitoring, maintenance and service purposes. Make sure that the PG13,5 thread and the O-ring are not damaged when screwing the sensor into the process. O-rings are consumable parts which must be exchanged regularly (at least once per year). Even when all required safety measures have been complied with, potential risks still exist with respect to leaks or mechanical damage to the armature. Wherever there are seals or screws, gases or liquids may leak out undetected. Always make sure that no process medium can be accidentally spilled before removing the sensor from its measurement setup. Make sure that no air or gas bubbles sticks to the sensitive part of the sensor.
As a consequence, the measurement value could be unstable. Do not put stress on the system by vibration, bending or torsion. Before use, verify that the sensor is properly configured for your application. Failure to observe and carry out the maintenance procedures may impair the reliability and correct functioning of the measurement system.

Attention ! When unscrewing the PG 13,5 thread connection never turn the sensor at the connector head because you can loosen the OdO Cap from the sensor shaft  and fluid can reach the interior of the sensor.
Attention! To avoid humidity problems, make sure that the Odor Cap and protection cap is always attached firmly to the sensor, and that the O-ring between the shaft  or m12 connector and cap is undamaged.
The integrated 4–20 mA analog output has been configured according to factory defaults. You can find full details, including serial number and most important specifications,  on the certificate provided with each sensor. Before use, verify that the sensor is properly configured for your application.
Make sure that following cross sensitivities and resistances of ODO Caps are respected.

Cross sensitivities and resistances of ODO Cap H3

Wetted parts resistant to| Standard cleaning and disinfectant solutions (NaOH, active  chlorine, chlorine dioxide)
Organic solvents such as Ethanol, Acetone, THF
---|---
Wetted parts not resistant to| Ozone
Lipophilic compounds

Cross sensitivities and resistances of OdO Cap H4

Wetted parts resistant to| Lipophilic compounds Standard cleaning and disinfectant solutions  (NaOH, active chlorine, chlorine dioxide)
Organic solvents such as Ethanol, Acetone, THF
---|---
Wetted parts not resistant to| Ozone

If the sensor is used in contact with gaseous or liquid organic solvents, the resulting measurement accuracy in this application must be separately checked and validated by the customer.

3.3 Instructions for Use in Potentially Explosive Atmospheres
The VisiFerm mA sensor is certified for use in explosive atmosphere with following Marking:
CE 0035 II 1 G Ex Ex IIC T3/T4/T5/T6 Ga
CE 0035 II 1 D Ex Ex IIIC T135°C Da
Hamilton Bonaduz AG, CH-7402 Bonaduz, Switzerland ATEX EC-type Examination Certificate: TüV 18 ATEX 8236X
IECEx Certificate of Conformity: IECEx TUR 19.0050X
The certificates and the declaration of conformity can be downloaded from www.hamiltoncompany.com

3.3.1 General Conditions for Safe Operation
Conditions described in the ATEX EC-Type Examination Certificate or the IECEx Certificate of Conformity must be adhered to.
The operator of equipment in potentially explosive atmospheres is responsible for ensuring that all components of the system are certified for that area classification and are  compatible with each other. The regulation of erection (e.g. IEC 60079-10) which apply to systems and plants used in potentially explosive atmospheres have to be strictly  adhered to. Perform regular visual inspection of the sensor, its installation and cable for intactness and correct operational conditions.
If the sensor is being operated in gas atmosphere, the following process and ambient temperatures have to be observed:

If the sensor is being operated in dust environment, the following process and ambient temperature have to be observed:

Maximum input
power Pi| Process and Ambient Temperature range [Ta/p]
---|---
750 mW| -20 °C ≤ Ta/p ≤ 115 °C          T 135 °C

If the sensor is electrically disconnected, the following temperature has to be observed for the process.

The operator has to ensure protection against lightning in compliance with the locally applicable regulations. Along to the intrinsically safe circuit potential equalization has to be provided, because in case of a fault the intrinsically safe circuit has to be regarded as connected to the metal housing.
Intense vapor or dust directly impacting on the cable must be avoided when the cable is running through zones of category 1G, 1D or 2D. Assembly and maintenance are to be done only if the atmosphere is Ex-free and according to the current local regulations.
After maintenance works have been performed all barriers and notes remove for that purpose have to be put back in their original place. The sensor has to be powered with a power supply unit with an intrinsically safe output circuit of Ex ia IIC. For the selection, consider the conditions stated in EN 60079-25. This is also applicable for operation of the sensor in non-ex environment. The Sensor Power Cable M12 is intended to be used in laboratory non ex environment.
The maximal input parameters of the sensor operated in gas atmospheres:

Hamilton recommends the following power supply units:

NOTE: The table above is only a recommendation.
Hamilton is not responsible for changes in the specifications of the power supply units.
Attention! in case the sensor is not working correctly disconnect the sensor immediately from the power supply.

3.3.2 Earthing
The sensor has to be mounted at the mounting location electro- statically conductive (< 1MΩ). It is recommended to assign the sensor shaft and/or M12 cable shield to ground or earth especially in electromagnetically noisy environments. This significantly improves noise immunity and signal quality. The M12 thread is connected to the metallic housing of the VisiFerm mA sensor. Two options for connecting the sensor to the process environment are available.

Option 1: The Metal tank is connected to earth
The sensor shaft is connected to the metal tank over the PG 13,5 thread.

NOTE: If the tank is not connected to earth, Option 2 has to be applied. Option 2: Glass or plastic tank (not connected to earth)
The glass or plastic tank has no connection to earth and therefore it is necessary to connect the sensor shaft via a screw clamp to earth.

Below are shown several examples how to connect the shaft of the sensor directly to earth as required in Figure 2.

3.4 Electrical Safety Precautions
Do not connect the sensor to a power source of any voltage beyond the range stated in the Technical Specifications (www.hamiltoncompany.com). Always use Hamilton M12 cables for safe connection. Cables are available in a broad range of lengths (chapter 11). Make sure the cable is intact and properly plugged to avoid any short circuit. Keep VisiFerm mA away from other equipment which emits electromagnetic radio frequency fields, and minimize static electricity in the immediate environment of the optical measuring parts. Carefully follow all the instructions in chapter 5.3 to avoid electrical damage to the sensor. The contacts must be clean and dry before sensor is connected to the cable.
Attention! Switch off the power supply and unplug the connector before dismounting the VisiFerm mA.
Attention! if the power supply (220 VAC/24VdC) is switched off or disconnected the reading on the PCS is wrong.

3.5 Chemical, Radioactive or Biological Hazard Precautions
Selection of the appropriate safety level and implementation of the required safety measures for working with VisiFerm mA is the sole responsibility of the user.
If working with hazardous liquids observe and carry out the maintenance procedures, paying particular attention to cleaning and decontamination. If VisiFerm mA becomes  contaminated with biohazardous, radioactive or chemical material, it should be cleaned. Failure to observe and carry out the maintenance procedures may impair the reliability  and correct functioning of the measuring module.

Product Description

4.1 General Description
The VisiFerm mA is an optical dissolved oxygen (DO) sensor for use in explosive environment. With their integrated transmitter, VisiFerm mA sensors enable direct communication to the process control system via 2 wire 4-20 mA standard signal or digital HART. Wireless communication directly from the sensor may be used for monitoring, configuration and calibration, and saves time without compromising the quality of the wired connection.
The sensor features furthermore an integrated Bluetooth 5, enabling in this way wireless encrypted data exchange with mobiles (Android and iOS). VisiFerm mA optical technology improves the measuring performance and simplifies maintenance. Improvements compared to conventional electrochemical (amperometric) sensors include flow independence, rapid start-up with no polarization time, and simplified maintenance.
With the transmitter integrated, VisiFerm mA sensors provide more reliable measurements directly to your process control system. The µ-transmitter located in the sensor head stores all relevant sensor data, including calibration and diagnostic information, simplifying calibration and maintenance. The integrated quality indicators predicts the remaining sensor and cap lifetime.

Key benefits include:

• Optical measurement in explosive environment with ATEX / IECEx certification
• No separate transmitter needed
• Simple maintenance with robust industrial design
• Easy to install 2-wire connection
• Direct analog or digital HART communication to the process control system via 2 wire 4-20 mA standard signal
• Full online wireless option via Bluetooth 5 for easy monitoring, configuration and calibration
• Encrypted data exchange with mobiles (Android & iOS)

4.2 Hardware Description
The VisiFerm mA sensor consists of a sensor head with integrated electronic and a sensor shaft in contact with the measured medium. The sensor shaft is terminated by the optical dissolved oxygen (ODO) cap, carrying the oxygen sensitive luminophore. During development, special attention was paid to an optimum sanitary design. Sensor status LED of the sensor:

registered
Yellow LEDs are flashing| Warning, minimum one warning is active
Red LEDs are flashing| Error, minimum one error is active
All LEDs light up slowly one by one in a circle| Wireless communication to ArcAir is active

Figure 4: VisiFerm mA description

4.3 Optical DO measurement
The optical measurement principle is based on the so-called luminescence quenching. The luminescence of certain organic pigments (luminophore) is quenched in the presence of oxygen. The luminophore absorbs the excitation light and release a part of the absorbed energy by emission of fluorescence. In the presence of oxygen, energy transfer takes place from the excited luminophore to oxygen. The luminophore does not emit fluorecence and the measurable fluorescence signal decreases.

4.4 VisiFerm mA with Micro-Transmitter inside
With the micro-transmitter integrated, VisiFerm mA sensors offer fully compensated signal directly to the process control system. Communication protocols include standard  analog 4–20 mA or digital HART. The micro- transmitter located in the sensor head stores all relevant sensor data, including calibration and diagnostic information,  simplifying calibration and maintenance.

Installation

5.1 Unpacking

1. Unpack carefully the VisiFerm mA sensor. Enclosed you will find the VisiFerm mA sensor, the Declaration of Quality, the VisiFerm mA Operating Instructions, and the  Stainless Steel Inspection Certificate.
2. Inspect the sensor for shipping damages or missing parts.

5.2 Configuring the VisiFerm mA with ArcAir Application
VisiFerm mA sensors require application specific configuration.
Following parts are required to configure and calibrate Arc sensors:

• Arc View Mobile (Ref 243690) or ArcAir computer Software Solution.
• External Power supply with Sensor Power Cable M12 (Ref 355288).

To configure and set up the VisiFerm mA sensors at least ArcAir Basic is required. Below in this table you will find the different ArcAir licenses and its functionality:

NOTE: For more detail information and configuration see Hamilton Arc System Operating Instructions.

5. 2.1 Installing ArcAir Basic on the Computer

1. Download the Zip file «ArcAir» from the Hamilton webpage www.hamiltoncompany.com (search for ArcAir)
2. Unpack the ZIP-File
3. Do not plug in the Wireless Converter before the installation of ArcAir is completed
4. Install «ArcAir» by double clicking «ArcAir.exe» and follow the instructions on the screen

5.2.2 Connecting the VisiFerm mA Sensor to ArcAir

1. Connect a sensor with the power supply, e.g. Sensor Power Cable M12 Ref 355288
2. Switch on the mobile’s Bluetooth connection or connect a Wireless Converter BT to USB Port of your computer (only for wireless connection)
3. The ArcAir application recognizes and displays the connected sensors automatically

Attention! For automatic sensor login a unique and global Operator Level S password for all intelligent sensors is required. Please make sure you have added the same Operator Level S Password for all Arc sensors in the ArcAir application under Backstage/Settings/Operator Level S Password.

5.2.3 Create User Accounts

1. Start Armchair application on computer
2. Click on «Backstage» left upper corner
3. Select «User Management»
4. Click the «Add» Button for opening the user editor
5. Type in the user details and password
6. Select the specific rights for the user

Attention ! First user is the administrator and all user rights are assigned as default.
NOTE: Initial operation of ArcAir is in the laboratory mode as long as no user account is created. Laboratory mode does not require a login password and enable all features  in the installed license version.
5.2.4 Configuring the VisiFerm mA Sensor Parameters

1. Start the ArcAir application
2. Select the desired sensor
3. Open the drawer «Settings» (make sure you have the «Sensor Settings» user right)
4. Configure the sensor
   A description of the available settings is given below:

Parameter
Name| Description| Default
Value| Configuration| Location
---|---|---|---|---
DO Unit| These are the measurement physical units| %vol.
%sat.
ug/l ppb
mg/l ppm
mbar
ppm gas*| Required| Measurement/
Values
T unit| These are the temperature physical units| K
°F
°C| Required| Measurement/
Values
Salinity| The concentration of dissolved oxygen in saturated water is dependent on the salinity| 0 mS/cm| Default parameter
recommended| Measurement/
Parameter

*humidity set to 0%

5.3 Install VisiFerm mA in your Measuring Loop

5.3.1 Mechanical Process Connection
The VisiFerm mA mechanical design is compatible with all Hamilton process housings, including Flexifits, Retractexs, Retractofits and Hygienic Sockets.
Before installing the armatures, you should test that the seal is tight and the parts are all in working order. Ensure that there is no damage to the sensor or the armature.  Check whether all O-rings are in place in the appropriate grooves and are free of damage.
To avoid any mechanical damage to O-rings on assembly, they should be slightly greased.
Please note that O-rings are wetted parts and greasy compounds must comply to your FDA application needs.

5.3.2 M12 Pin Designation
The VisiFerm mA sensor is fitted with a M12 male, A coded connector. The four golden contacts are denoted as pin 1 to pin 4. For easy identification of each pin the M12 has a mark between pin 1 and pin 2. Always use Hamilton M12 sensor cables for safe connection, which are available in different lengths (chapter 11).

5.3.3 Required Power Supply
VisiFerm mA sensors are specified with a minimal power supply as follows:

5.3.4 Electrical Connection for HART Communication
VisiFerm mA sensor supports the platform-independent HART 7 and higher communication protocol. In most cases a HART resistor is already installed in the HART  Interface Card of the process control system (Figure 9 A). If no resistor in the HART interface card is integrated, an external 250 Ω resistor has to be installed in series  between the sensor and the process control system as described on Figure 9 B.
For more details about the HART commands and configuration please refer to the HART® Field Device Specification Ref 111001055 document available on the webpage  www.hamiltoncompany.com (search for VisiFerm mA HART® Field Device Specification).

The Device Description or DD can be downloaded on the HART Communication Foundation webpage www.hartcomm.org (search for Device Descriptions / DD Library)  or on the Hamilton webpage www.hamiltoncompany.com.

A HART resistor is available in the HART interface card.

A HART resistor is required in series between the sensor and the process control system.

5.3.5 Electrical Connection for Analog
4-20mA Communication

5.3.5 Electrical Connection for Analog 4-20mA Communication
The 4–20 mA interface enables direct connection of the VisiFerm mA sensor to a data recorder, indicator, control unit or PCS with analog I/O. The VisiFerm mA works as a current sink sensor and is passive. Connect the sensor according to the pin designations (chapter 5.3.2). The 4–20 mA interface of the VisiFerm mA sensors is pre-configured with default values for the 4-20 mA range, and measurement unit. Configure the 4.20 mA interface according to your requirements for proper measurement (chapter 5.2.4).

A

B

Figure 10: Two- wire loop wiring diagram for the 4-20 mA interface.
A: with an active current input card. B: with a passive current input card.

Operation

Attention! Only use the sensor within the specifications (www.hamiltoncompany.com). Failure to do so may lead to damages or measurement failure.

1. Remove the protective caps from the VisiFerm mA shaft, and from the M12 sensor head
2. Mount the O-ring on the sensor shaft and screw the ODO Cap firmly
3. Verify the functionality of the sensor including the ODO cap (c h a p te r 7.1)
4. Scan the barcode on the ODO Cap label with the ArcAir mobile barcode scanner or enter manually the information in the sensor/ Sensor Information.
5. Calibrate the sensor (chapter 7.3)
6. Connect the sensor to the process control system (chapter 5)
7. Verify the measurement in air on your control system
8. Mount the sensor to the armature or process connection (chapter 5.3)

Attention! Please scan the barcode or enter the data into ArcAir prior first use of a replacement cap.

Maintenance

Periodic maintenance routines need to be run in order to ensure safe and reliable operation and measurement of sensor and the accessories.
Attention! Avoid any contact of the equipment with corrosive media.
Attention! Please screw the protection cap on the m12 sensor connector when disconnecting the sensor m12 cable.

7.1 Verify Sensor Status and ODO Cap Functionality

1. Power the sensor with the M12 Sensor Power Cable and connect the sensor to ArcAir
2. Control the status (Figure 11)
3. Please refer to the troubleshooting (chapter 8) for the next steps if the traffic light is not green
4. Control the quality of the sensor, ODO cap or measurement in ArcAir under Sensor Information or Quick View / Sensor Health and change the ODO Cap or sensor if required (chapter 7. 2)

7.1 Verify Sensor Status and ODO Cap Functionality

1. Power the sensor with the M12 Sensor Power Cable and connect the sensor to ArcAir
2. Control the status (Figure 11)
3. Please refer to the troubleshooting (chapter 8) for the next steps if the traffic light is not green
4. Control the quality of the sensor, ODO cap or measurement in ArcAir under Sensor Information or Quick View / Sensor Health and change the ODO Cap or sensor if  required (chapter 7. 2)

NOTE: The lifetime of the VisiFerm mA highly depends on the specific conditions of the application. Temperature, pressure, chemicals used may accelerate the ageing of both the sensor and its ODO cap. A warning «Maintenance required» remains active as long as the cap or sensor quality is below 40%. Make sure that after new cap or sensor replacement the measurement quality status is green. The measurement quality status takes sensor and cap into account.

The sensor is performing correctly.
No errors or warnings have been registered.
At least an error or a warning has been registered.
Verify the sensor errors and warnings in Sensor Status.
No communication between the sensor and ArcAir.
This may be due to a hardware failure.

7. 2 Replacing the ODO Cap
The exchange of ODO Cap is performed very easily:

1. Unscrew the ODO cap from the shaft (Figure 12)
2. Exchange the O-ring
3. Screw firmly the new ODO Cap onto the sensor shaft again
4. Perform sensor calibration (chapter 7.3)

NOTE: If the ODO Cap is mounted very firmly on the shaft, and if you cannot obtain a good grip on the stainless steel with your fingers, a silicone tube between your fingers and metal may supply a better grip.

7. 3 Calibration
The VisiFerm mA sensors provide two kinds of sensor calibration: automatic standard calibration, and product calibration. The automatic standard calibration and the  product calibration may be performed using ArcAir (see chapter 5.2).

7. 3 .1 Automatic Standard Calibration with ArcAir
VisiFerm mA sensors are calibrated at two points: in air and in an oxygen-free environment. During calibration, the sensor controls automatically the stability of the oxygen  and temperature signals.
NOTE: For greater measurement accuracy ensure that temperature difference between calibration medium and process medium is minimal. Make sure you compensate humidity and pressure during calibration.
NOTE: A 2-point calibration in air and Nitrogen is only required:

• For each new ODO Cap replacement
• If high accuracy is needed

7. 3 . 2 Calibration in Air (Calibration Point Air)

1. Make sure temperature, humidity and pressure values are constant (Figure 13)
2. Power the VisiFerm and connect to ArcAir via the Arc Wireless Converter BT
3. Select the sensor in the sensor list
4. Open the Calibration tab
5. Select Calibration Point Air
6. Click Start to start the calibration wizard
7. Follow the instructions on the screen

NOTE: The value of the saturated oxygen concentra-tion at different temperatures, different pressures and air humidity play an important role for the calibration of dissolved oxygen. For an accurate calibration Hamilton strongly recommend to to enter the atmospheric pressure and humidity values in the ArcAir calibration, product calibration and  verification wizards.

7.3.3 Zero Point Calibration (Point Zero Oxygen)

1. Install the sensor into the calibration station and connected the Nitrogen calibration gas (Figure 14)
2. Power the VisiFerm mA and connect to ArcAir via the Arc Wireless Converter BT
3. Select the sensor in the sensor list
4. Open the Calibration tab
5. Select Zero Point calibration
6. Immerse the sensor into an oxygen-free environment (Figure 13) for e.g. nitrogen. Verify that the flow rate does not exceed 0.5 L/min and avoid overpressure
7. Click Start to start the calibration wizard
8. Follow the instructions on the screen
   

7.4 Product calibration
The product calibration is an in-process calibration procedure in order to adjust the measurement to specific process conditions. Product calibration is an additional  calibration procedure to a standard calibration.
If product calibration is activated, the VisiFerm mA calibration curve is calculated from the data of last calibration at point 1 and from the data of the product calibration  (Figure 15). In order to restore the original standard calibration curve, the product calibration can be at any time by selecting on the Product calibration command «cancel». A  new standard calibration  cancels a product calibration as well.

A product calibration is performed as follows:

1. Connect one of the VisiFerm mA sensor with the power supply, e.g. Sensor Power Cable M12 Ref 355288 (see figure 6) and install a Wireless Converter BT Ref 242333
2. Select the desired sensor from the sensor list
3. Go to «Process Settings»
4. Click «Start» to start the product calibration wizard
5. Follow the instruction on the screen

NOTE: Alternatively, the product calibration may be performed with a field device on side the measuring point.

7. 5 Cleaning
This chapter outlines a manual cleaning procedure for the care and maintenance of optical dissolved oxygen (ODO) sensors including a procedure for the cleaning the  sensing membrane in particular.
Cleaning the Sensor
Carry out the cleaning procedure as follows:

1. Remove sensor from the measuring setup
2. Check if the ODO Cap is mounted firmly on the shaft
3. Soak a dust-free cloth or tissue paper with water and wipe the wetted parts with it. Thoroughly rinse the wetted parts and the sensing membrane with deionised water afterwards
4. Dry the wetted parts with a clean dust-free cloth or tissue and store the sensor in dry and dark conditions (ODO Caps are light-sensitive)
5. If the sensing-membrane on the front of the cap is contaminated with oil, grease or other organic matter, soak a clean dust-free cloth with isopropyl alcohol. Rinse  residual isopropyl alcohol immediately from the membrane with deionised water and gently wipe over the membrane
6. After cleaning always perform a new calibration before carrying out measurements (see chapter 7.3 in the corresponding Operating Instruction Manual)

Attention : Cleaning, assembly and maintenance should be performed by personnel trained in such work. do not use any abrasive tissues or cleaning materials and do not use any cleaning chemicals other than described above. Before removing the sensor from the measuring setup, always make sure that the setup is pressure-less, cold and that no process medium can be accidentally spilled. When removing and cleaning the sensor, it is recommended to wear safety glasses and protective gloves.

Troubleshooting

8.1 Sensor Self-Diagnostic
VisiFerm mA sensors provide a self-diagnostic functionality to detect and identify the most common sensor malfunctions. Both interfaces, analog 4-20 mA or digital HART, may provide warning and error messages. The analog 4–20 mA interface can be configured according to the NAMUR recommendations to indicate an abnormal event (see chapter 5.2.3). Use ArcAir for monitoring the sensor status and for troubleshooting. The following types of messages are provided by the self-diagnosis function.

8.1.1 Warnings

DO reading above upper limit| The oxygen reading is too high (DO > 300 %-sat).
Make a new calibration in oxygen saturated medium (see chapter 7.3.2). If not successful, replace the sensor cap
---|---
DO reading unstable| If continuously happening, use a new cap or check the process regulation. If the problem still appears, call  our Technical Support
T reading below lower limit| The temperature is below the user defined measurement temperature range. If the process temperature is  outside this range, the sensor will not perform DO readings
T reading above upper limit| The temperature is above the user defined measurement temperature range. If the process temperature is  outside this range, the sensor will not perform DO readings
Measurement not running| The measurement interval is set to 0 or the measurement temperature is out of the range
DO calibration recommended| Perform a calibration in order to ensure reliable measurement (chapter 7.3.1)

8.2 Getting Technical Support
If a problem persists even after you have attempted to correct it, contact Hamilton`s Customer Support: Please refer to the contact information at the back of this Manual.

8.3 Returning VisiFerm mA for Repair
Before returning a VisiFerm mA sensor to Hamilton for repair, contact our Customer Service (see chapter 14.2) and request: a Returned Goods Authorization (RGA) number.
Do not return a VisiFerm mA sensor to Hamilton without an RGA number. This number assures proper tracking of your sensor.
VisiFerm mA sensors that are returned without an RGA number will be sent back to the customer without being repaired. Decontaminate the VisiFerm mA sensor and remove health hazards, such as radiation, hazardous chemicals, infectious agents etc. Provide complete description of any hazardous materials that have been in contact with the sensor.

Disposal

The design of Hamilton sensors optimally considers environmental compatibility. In accordance with the EC guideline 2012/19/EU Hamilton sensors that are worn out or no longer required must be sent to a dedicated collection point for electrical and electronic devices, alternatively, must be sent to Hamilton for disposal. Sensors must not be sent to an unsorted waste disposal point.
****www.hamiltoncompany.com,

Bluetooth Certification

Hamilton
HVIN: 10070760
FCC ID: 2AQYJVISIMA
IC ID: 24225-VISIMA
This device complies with Part 15 of the FCC Rules and with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this  device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
NOTE: Changes or modifications made to this equip- ment not expressly approved by Hamilton may void the FCC authorization to operate this equipment.

Japanese Radio Law and Japanese Telecommunications Buisness Law Compliance.
This device is granted pursuant to the Japanese Radio Law and the Japanese Telecommunications Business Law. This device should not be modified (otherwise the granted  designation number will beome invalid).
South Korea Bluetooth Certification: ****R-R-HBz-VmA

Ordering Information

Parts below may only be replaced by original spare parts.
11.1 VisiFerm mA

11. 2 Parts and Accessories

Silicone (FDA and USP Class VI)

Application: For general application in biotechnology, water treatment and monitoring as well as in breweries and wineries.

Application: The Sensor Cable M12 – open end is designed for connection to a data recorder, indicator, control unit or PCS (Process Control System) with analog I/O.

Description: This cable includes a power adapter to supply the sensor with operation power.

Application: Designed for wireless communication between ArcAir and VisiFerm mA sensor. Include the License key Advanced for ArcAir.

Application: Designed for wireless communication between ArcAir and VisiFerm mA sensor.

Description: For connection between process and sensor open end cables.
IP 68 specified.

Description: The pre-configured Arc View Mobile, Hamilton`s mobile solution for monitoring measurement values, calibrating Arc sensors and configuring various parameters with the unified user interface for pH, DO, Conductivity and ORP. The Arc View Mobile is based on the Samsung Galaxy Tab Active tablet and comes pre- configured with the ArcAir basic, app blocker application, power supply cable, instruction manual and Hamilton quick guide.

Description: View Ex Mobile is a monitoring, configuration and calibration device based on Android smartphone application technology. The View Ex Device can be used  wirelessly for calibration, configuration and diagnostics in Ex environment (Zone 1, 2, 21, 22) or in laboratory.

11.3 Arc Services
Hamilton service engineers are available in Europe and China in order to provide customers with on-site services. Hamilton offers a wide range of services from technical  support to initial operation, qualification and maintenance of the sensors.
Various tailored services are offered especially for the BioPharma, ChemPharma and brewery industries. Experienced service engineers ensure an optimal and professional  service.
In order to find your local service support please visit: www.hamiltoncompany.com/process- analytics/support

Overview of service offers

| Online service
---|---
Technical support
Initial Operation/Calibration
Qualification (IQ/OQ)
Service packages
Maintenance
Training

Web: www.hamiltoncompany.com
USA: 800-648-5950
Europe: +41-58-610-10-10
Hamilton Americas & Pacific rim
4970 Energy Way
Reno, Nevada 89502 USA
Tel: +1-775-858-3000
Fax: +1-775-856-7259
sales@hamiltoncompany.com
Hamilton Europe, Asia & Africa
Via Crusch 8
CH-7402 Bonaduz, Switzerland
Tel: +41-58-610-10-10
contact.pa.ch@hamilton.ch
To find a representative in your area, please visit www.hamiltoncompany.com.
This guide may be available in other languages.
Visit www.hamiltoncompany.com for more information.

References

• Hamilton Company
• Hamilton Company
• Process Analytics | Process Analytics | Hamilton Company

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