Dräger PEX 3000 Instrucciones Para El Servicio página 52

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
und 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
9023810 - 2nd edition - September 2005
Cable screen
contacted within
the cable gland
PEX 3000
Type XTR 0090,
XTR 0091
Cable screen
contacted within
the cable gland
Sensing head
Polytron SE Ex
➀ ➁ ➂
max. cable length
50 m
100 m
150 m
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
Installing Transmitter
Power supply
+24 Volts
24 V ±20 %,
0 Volt
0.15 A
4 to 20 mA
0 mA
Controller Unit
core cross-section
2
0.5 mm
2
1.0 mm
2
1.5 mm
Page 9 of 42