Technical Manual
|
Dräger Polytron
®
8000 Series
37
Remote sensors
In case of 3-core field wiring:
●
Install screw bridges between contacts 1a/1b and 3a/3b of the terminals.
(
Fig. C
).
8. Attach the lid and tighten it (
≥
44 LB IN. /
≥
5 Nm) (
Fig. E
).
9. Tighten the set screw (
≥
8 LB IN. /
≥
0.7 Nm) (
Fig. E
).
10.Close unused housing openings with screw plugs.
11.Tighten all cable entries and screw plugs (at least 5 rotations and 266 LB IN. / 30
Nm).
6.3.2
Connecting the Junction Box Ex d to Polytron
®
transmitters
1. Screw the cable harness (
X
) into the Polytron
®
enclosure (
Fig. F1
).
2. Feed the field wiring through the cable entry and connect it to terminal (
X
) (
Fig.
G
).
In case of 3-wire field wiring:
●
Install screw bridges between contacts 1a/1b and 3a/3b of the terminals.
(
Fig. C
).
3. Connect the cable shield to one of the two the grounding screws inside of the
transmitter (
Fig. G1
).
4. Connect the plug of the cable harness to the socket of the PCB unit.
5. Attach the lid and tighten it (
≥
44 LB IN. /
≥
5 Nm) (
Fig. E
).
6. Tighten the set screw (
≥
8 LB IN. /
≥
0.7 Nm) (
Fig. E
).
7. Close unused housing openings with screw plugs.
8. Tighten all cable entries and screw plugs (at least 5 rotations and 266 LB IN. / 30
Nm).
