SICK GM700 Ex, Operating Instructions Manual, Page: 52 / 102

1 Loosen the 4 screws on the mounting ring (see Figure).
2 Rotate the device flange to the following position:
–
The measuring gap must point in flow direction.
– The device flange must be positioned so that the SR-unit can be fitted in a
vertical position.
3 Tighten the screws on the mounting ring again to fasten the device flange in this
position.
7.8 Feeding protective gas
NOTICE
The pressurized enclosure requires a permanent supply of protective gas to ensure the
Ex protection function.
b
Feed the protective gas via the protective gas connection.
Further information concerning protective gas:
–
Requirements for protective gas, see "Technical data for Protective gas",
page 92 .
– Protective gas outlet: see "Install the FS840", page 31 .
7.8.1 Connecting the protective gas on the SR-unit
The protective gas connection is located underneath the enclosure of the sender/
receiver unit.
1
Figure 27: Connection for protective gas on GM700 Ex
1
Protective gas inlet:
• Thread G3/8" or
• hose connection for 8 mm diameter
7
COMMISSIONING
52 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