8.3
Activating Standby mode
Important information
NOTE
If Standby mode has been activated, it can only be deactivated again after the auto‐
matic zero point validation has been completed.
Procedure
1.
Open the “Function buttons” menu in the “Maintenance” folder.
2.
Press “Standby”.
✓
Purge the gas sampling unit and the device with instrument air.
✓
An automatic zero point validation with instrument air is performed, this takes
about 8 minutes.
✓
The device goes into Standby mode.
3.
Check the flow rate of the instrument air is 100 l/h. If necessary, correct the flow
rate at the throttle.
8.4
Switching the device off
Important information
CAUTION
Poisoning hazard through sample gas
Sample gas may be present in the components in contact with the sample gas after
switching off.
b
Set the measuring device to Standby mode before turning it off.
Prerequisites
•
The instrument was purged with instrument air for 10 minutes in Standby mode.
Procedure
1.
Switch off the instrument via a separate main switch or via the FI (FB1) switch in
the sample conditioning and distribution unit.
2.
In case of prolonged shutdown: Pull the gas extraction unit out of the stack.
8.5
Modbus functions
8.5.1
Activating Modbus functions
Prerequisites
•
SOPAS ET is connected to the measuring device.
Procedure
1.
Open the BCU module with a double-click.
2.
Select menu “Modbus” from “Parameter”.
3.
Select “Type” from the “TCP” selection menu.
4.
Set “Activation” to “on”.
8
OPERATION
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O P E R A T I N G I N S T R U C T I O N S | MARSIC280
8021339/1CHC/V1-1/2021-07 | SICK
Subject to change without notice
