Installing/Removing The Sample Gas Restrictor - Siemens 7MB3000 Series Operating Instructions Manual

Connecting the device
8.1 Gas connections
8.1.3

Installing/removing the sample gas restrictor

Requirements
Before you install/remove the sample gas restrictor, ensure that
• the sample gas line is disconnected from the device,
• you have read the section "Combination operation (Page 41)",
• a suitable slot screwdriver is at hand.
The difference between a sample gas restrictor and a clamping screw is:
– Sample gas restrictor: slotted screw; outlet diameter 0.5 mm
– Clamping screw: Cross-tip screw; outlet diameter 2 mm. For additional information, refer
Procedure
The installation, removal and retrofitting of clamping screws or sample gas restrictors is limited
to only a few module types. You will find more detailed information on the mounting position
and the mounting conditions in the section "Structure of the gas connections (Page 43)".
1. Install the sample gas restrictor or clamping screw:
Screw the sample gas restrictor or the clamping screw into the outlet. The tightening torque
is 1 Nm.
2. Connect the sample gas line again.
3. Remove the sample gas restrictor or clamping screw:
Proceed in reverse order.
94
to the section "Structure of the gas connections (Page 43)".
Operating Instructions, 07/2023, A5E31930403-AB
Wall-mounted device