Dräger PEX 1000 - Page 27

Dräger PEX 1000 27
Operation
1. Connection between controller unit and supply voltage as shown.
2. Connection between sensing head SE Ex and PEX 1000 as shown.
 The power supply may also be an integral part of the controller unit.
PEX 1000
Connection to controller unit: Connection to sensing head
Connect terminal +24V to +24 Volt Connect terminal br/br to terminal 1
Connect terminal SIG to 4 to 20 mA input Connect terminal ge/yw to terminal 2
Connect terminal 0 V to 0 Volt Connect terminal sw/bk to terminal 3
PEX 1000
Typ XTR 0090,
XTR 0091
sensing head
Polytron SE Ex PR ... DD
00133445_en.eps
12
3
12
3
OK
+24 volt
0 volt
power supply
24 V 20 %,
0,15 A
4 to 20 mA
0 mA
controller unit
max. cable length see table in chapter 3.1.2
shielding in
insertion fitting
shielding