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 te24V 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
1 2 3
1 2 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