SICK GM700 Ex, Operating Instructions Manual, Page: 76 / 102

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Figure 36: Fit the filter box on the measuring device
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Gas filter box
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Reflector enclosure
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Adapter plate for SR-unit
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Sender/receiver unit
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Intermediate enclosure
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Pin
Carry out filter box measurement
1 Switch filter box on.
NOTE
The warming-up phase takes about 2.5 hours.
2 Make the settings on the filter box:
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Set the sample gas chamber to “Zero gas”.
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Set the “Measuring/Purging” valve to “Purging”.
3 Make the settings on the EvU:
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Switch to Calibration mode with button “cal”.
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Select menu “Box measuring” -> “gas”.
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Enter password “1 2 3 4”.
The measuring device starts a zero adjust and then switches to operating mode
“Box measuring”.
4 Connect the test gas on the filter box.
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Set the primary pressure to approx. 1000 hPa (1 bar)
5 Measure the individual chambers and/or chamber combinations of the filter box
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Set the valves for the respective filter chambers to “Test gas”
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Set the valve measure/purge to “Purging” for 2 to 3 minutes (until the mea‐
sured value has stabilized to a level).
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Then set the valve to “Measuring”.
The overpressure from the purge phase now dissipates.
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When the measured value has stabilized again, read off and note the value.
6 Leave operating mode “Box measuring” on the EvU with the return button.
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MAINTENANCE
76 O P E R A T I N G I N S T R U C T I O N S | GM700 Ex 8019532/100Q/V1-1/2018-08 | SICK
Subject to change without notice