Dräger Junction Box Ex d Instrucciones De Montaje página 9

5.1 PIR 7x00
Wire color and socket
Socket Wire color Function
1a red + DC voltage supply
1b black - Common reference potential
2 brown 4–20 mA signal and HART signal output
3a white Serial interface
3b green/yellow Potential equalization
6 Replacing the sensor
Observe the instructions for use of the sensors and of the transmitter or
evaluation unit.
To replace the sensors, remove the sensor plug from the socket of the cable
harness.
The wires of the cable harness must not be removed from the terminal block. If
the wires are removed, reconnect the wires to the correct terminals with the aid
of the label (e.g., connect plug 1a with socket 1a).
1. Unscrew the lid.
2. Remove the sensor plug from the socket of the cable harness (Y).
3. Unscrew the old sensor.
4. Screw in the new sensor (at least 5 turns and 266 LB IN. / 30 Nm).
5. Observe the preferential position of the sensor (Fig. A2).
For PIR 7x00 sensors (Fig. A2a):
● The "Dräger" lettering on the splash guard must read horizontally.
A deviation from the horizontal of ±30° maximum is permissible.
6. Connect the sensor plug with the socket of the cable harness (Y) (Fig. B1).
● In case of DD/DQ CatEx sensors, twist the sensor cables with 7
rotations (Fig. B2).
7. Attach the lid and tighten it (≥44 LB IN. / ≥5 Nm) (Fig. E).
8. Tighten the locking screw (≥ 8 LB IN. / ≥0.7 Nm) (Fig. E).
Assembly instructions |
Junction Box Ex d
7 Disposal
This product must not be disposed of as household waste. This is indi-
cated by the adjacent icon.
You can return this product to Dräger free of charge. For information
please contact the national marketing organisations and Dräger.
8 Cable specifications
Cables must be designed for the intended ambient temperature.
Cores
Covering
Outer diameter for cable gland (Point-
Gard 3200, PIR 7x00)
Core cross-section
Length, dependent on sensor and
transmitter or control unit
1) Does not apply to PIR 7x00 sensors. 5-core field wiring must be used for PIR 7x00 sensors.
Field wiring 3-core or 5-core
Transmitter
Polytron 57x0 / 87x0 IR
Polytron 5310 / 8310 IR
Polytron 5200 / 8200 CAT
PointGard 3200 CAT
Replacing the sensor
1)
3 or 5, braid
≥ 80 %
6-12 mm / 0.2 In - 0.47 In
0.2 mm² - 2.5 mm² /
AWG 24 - 14
Max. 30 m /100 feet
(DD/DQ sensor with Polytron and
PointGard 3200)
Field wiring
3-core 5-core
not possible x
x x
x x
x x
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