3.6
Layout and function
1
8
7
6
5
4
3
2
9
ß
à
Figure 3: GM32 Ex probe version category 2G and 3G
1
Connection unit
2
SR-unit
3
Operator panel (for the “Pro” variant)
4
Purge air fixture (without electronics)
5
GMP measuring probe (without electron‐
ics)
6
Measuring gap (active measuring path)
7
Ex purge air unit
8
Ex valve for protective gas supply
9
Hose (suitable for overpressure)
ß
For version 3G: No connection cable to
connection unit
à
Ex control unit FS850S of pressurized
enclosure
The GM32 Ex Probe version comprises:
•
Sender/receiver unit: Contains optical and electronic subassemblies.
°
Function: The concentration calculation of the sample gas is performed
according to the absorption spectroscope principle.
•
GMP measuring probe with flange or purge air fixture:
uring probe (GMP probe)", page 24
•
Purge air unit:
see "Ex purge air unit", page 24
.
•
Connection unit:
see "Installing the connection unit", page 32
,
diagram for version 2G", page 37
see "Connection diagram for version 3G",
.
3
PRODUCT DESCRIPTION
20
O P E R A T I N G I N S T R U C T I O N S | GM32-Ex
8015558/YYJ8/V1.7/2016-07 | SICK
Subject to change without notice