Dräger PEX 3000 Gebrauchsanweisung Seite 36

Installing Transmitter
 Remove cover of the transmitter.
 Connection between transmitter and central controller as shown.
Type XTR 0090 and XTR 0091:
 Connection between sensing head and transmitter as shown.
— The power supply may also be an integral part of the controller unit.
PEX 3000
Type XTR 0000,
XTR 0001,
XTR 0010
and XTR 0011
PEX 3000, all types
Connection to central controller:
Connect terminal +24V to +24 Volt
Connect terminal SIG to 4 bis 20 mA input
Connect terminal 0 V to 0 Volt
36
Cable screen
contacted within
the cable gland
Type XTR 0090,
Cable screen
contacted within
the cable gland
1 2 3
1 2 3
PEX 3000
XTR 0091
max. cable length
Sensing head
Polytron SE Ex PR ... DD
PEX 3000, types XTR 0090 and XTR 0091
Connection to sensing head
Connect terminal br/br to terminal 1
Connect terminal ge/yw to terminal 2
Connect terminal sw/bk to terminal 3
Power supply
+24 Volts
24 V 20 %,
0 Volt
4 to 20 mA
0 mA
Controller Unit
core cross-section
50 m 0.5 mm
100 m 1.0 mm
150 m 1.5 mm
0.15 A
2
2
2