Laser gas analyzer,
version with measuring probe (102 pages)
Summary of Contents for SICK GM32
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Title Page TE C H N I C A L I N F O R M A T I O N GM32 In-situ Gas Analyzer Measuring Probe Version Operating for Service Technicians Technical Details These Instructions are intended exclusively for trained personnel.
Designated users 1.1.1 This Technical Information is aimed at qualified persons familiar with the GM32 and who, based on their device-specific training and knowledge of the device as well as knowledge of the relevant regulations, can assess the tasks given and recognize the dangers involved.
(filter) through which the gas mixture being measured flows - the active measuring path. The GM32 SR-unit determines the concentration of the respective gases based on wave- length-specific light absorption by the gas mixture in the active measuring path.
Wavelength scale monitoring 2.5.2.1 The grating spectrometer used in the GM32 shows, due to the design, wavelength scale drifts caused by mechanical effects (e.g. length changes caused by temperature fluctua- tions). Compensation is realized through continuous determination of this drift during measuring operation and calculation back to the original state through numeric interpola- tion.
This can be caused, for example, when the probe bends due to varying gas tempera- tures. These swivel movements are compensated continually on the GM32 by the built-in tracking mirror. Motors tilt this mirror in two directions and can thereby compensate occurring swivel movements.
Activating or deactivating terminating resistors Operating Instructions of bus partici- pants. For GM32: p. 24, §3.3 and Operating Instructions “Modular System I/O”. Stub lines lead to reflections on the bus, therefore: Avoid stub lines whenever possible, otherwise limit these to max. 10 m.
CAN Connection SCU connection (overview) 3 . 2 As an option, the GM32 (and further analyzers) can be operated using an SCU (System Control Unit). The SCU is an operating unit for comfortable, powerful analyzer control. The following actions can be performed on the analyzers via the SCU: Control, parameter setting and display.
CAN Connection Connecting the GM32 to the CAN bus and to the SCU 3. 3 Connection of the GM32 to the CAN bus, here as example to the SCU. Fig. 8 Example: CAN connection of the SCU to the GM32...
Operator menus and measured value displays are also available on an external PC via Eth- ernet for user comfort (with the engineering tool SOPAS ET). The SICK Open Portal for Applications and Systems (SOPAS) is an engineering tool for com- munication with analyzers and sensors.
Program/data structure (“Firmware”, “Device description file”) 4. 3 To load data to the GM32 analyzer: The GM32 analyzer can be accessed using the SCU (i.e. connect the laptop to the SCU and not to the electronic unit). Login to SOPAS ET as “Service”.
First save the existing parameters ( p. 63, §4.3.5.2) and then load the firmware ( p. 63, §4.3.5.3). Parameters that no longer match are displayed. Auxiliary means required Firmware installation package with .smf file (there are two .smf files for GM32 analyzers) Firmware files have the suffix .smf ● Procedure 1 Connect the PC to the Ethernet interface of the GM32 or SCU.
4 “Module Manager” 5 “Install new or update existing module” 6 Follow the instructions. When the device description files are already available on the GM32 analyzer or SCU and SOPAS ET is to be made available again: 1 Call SOPAS ET.
Saving parameters (GM32 analyzer/SCU) to an external data medium 4.3.5.2 You can only reset the GM32 to the last usable state after data losses when you have previously saved the data on an external data medium (e.g. a PC). Parameter files have the suffix .sdv ●...
3 Put the GM32 in a safe place and put it into operation with the probe fitted. The probe must only be in inert gas (e.g. ambient air).
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When the value on the measurement reflector reaches a value between 45000 and 50000 digits, the GM32 can be compared against zero in the SOPAS ET menu Adjust- ment Zero adjust ( p. 43, §4.2.4.2). 14 Use menu Diagnosis Sensor values Spectra Absorption ( p. 53) to check the smoke-free spectrum.
Supply line 1/4" with Swagelok fitting The GPP probe remains installed in the gas duct. 1 Switch the GM32 to Maintenance (on the operator panel or in SOPAS ET menu: GM32/ Maintenance/Operating mode switch p. 56, §4.2.6.1) 2 Connect N or instrument air to the probe via a pressure reducer (...
Pressure gauge / pressure reducer Supply line 1/4" with Swagelok fitting 1 Switch the GM32 to Maintenance (on the operator panel or in SOPAS ET menu: GM32/ Maintenance/Operating mode switch p. 56, §4.2.6.1) 2 Connect the desired zero and/or test gas via pressure reducer to the probe ( p. 76, Fig.
If the existing measuring point is to used for the purge air unit again, e.g., for a different measuring system: Check the technical data or contact SICK to determine whether the purge air unit is suit- able for the planned application purpose.
Conservation measures, correct storage and transport 6 . 4 This Section describes how to prepare the GM32 for storage for later use or transport. Clean the outside of the closed SR-unit housing and all other components with damp cleaning cloths. Pay special attention to removing chemical residues or condensate deposits.
If the planned measuring task is different to the original task (e.g., modified sample gas composition, different measuring point): Ask SICK Service or the responsible sales partner whether a new factory calibration is required for the changed measuring task and which system components may have to be returned (usually the SR-unit).
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