3.10.2
Zone of use GM700 Ex 3G components
DI
/
DO
/
A
I/
A
O
2
3
0
/
1
1
5
V
ß
à
GM700
Ex ATEX 3G
á
Ex p
[op is]
p/t
Ex ia
Ex m
6
Ex p/ Ex i
Ex na
nc
8
5
1
3
4
â
Non Ex
ã
ä
æ
9
å
DI
V
1
DI
V
2
N
on
Ex
1
G
2
G
N
on
Ex
3
G
N
on
Ex
Z
one
2
Z
one
1
Z
one
0
2
7
Figure 5: Zone of use GM700 Ex 3G components
Components
1
Control station / measuring station
2
Sender/receiver unit
3
Measuring beam
4
Ex-p valve
5
Evaluation unit
6
Overpressure control
7
p/T sensor
8
p sensor for purge air unit
9
Pressure controller for optics purge air as selected by the plant operator
Lines
ß
Purge air hose, optics
à
Connecting hose, Ex-p
á
Pressure controller for optics purge air as selected by the plant operator
â
Ex-p error case signal
ã
Service interface
ä
Ex-p protective gas feed, from plant operator
å
Feed, optics purge air
Measuring channel
æ
Measuring channel, Ex-free
PRODUCT DESCRIPTION
3
8019532/100Q/V1-1/2018-08 | SICK
O P E R A T I N G I N S T R U C T I O N S | GM700 Ex
21
Subject to change without notice