Terminal Assignment - Dräger Polytron 5000 Montageanweisung

Option
Mounting in a tube/duct
2. Pull the hinge pin out of the Docking Station.
3. Align the gas detector hinge with the Docking Station hinge and reinsert the
hinge pin.
 The gas detector is attached and can be opened to gain access to the
wiring.
4. Connect the cable bushings of the gas detector to the Docking Station.
In the case of a cable bushing with stranded wires, observe the terminal
assignment .
The plug locks must engage.
5. Connect the ground wire to the ground connection (torque 1.2 Nm).
6. Wire the Docking Station as described in Installation chapter.
7. Check the electrical installation to ensure that all conductors are properly
connected.
8. Screw the gas detector onto the Docking Station with 4 screws and a torque
of 8 Nm (70 LB IN.). The 4 screws are included in the delivery (M6 1/4 "
hexagon socket head cap screws).
6 Installation
WARNING
The electrical installation must only be carried out by experts. During
installation, all wiring must conform to the relevant, applicable national
regulations relating to the installation of electrical equipment and, where
applicable, the regulations for installation in potentially explosive areas. In case
of any doubt, obtain the relevant information from the appropriate official body
before executing the installation.
CAUTION
Do not apply power before the electrical installation is complete and has been
checked. Do not pull on cables to unplug!
Assembly instructions |
Docking Station for Ex e version of Polytron® 5000/8000
Duct mount kit (part number
68 12 725)
®
For Polytron 57x0 IR / 87x0 IR Part
number: 68 12 300
NOTICE
For installation of the conductors onto the terminal block, a screwdriver or the
special enclosed tool is required.
Observe the following during installation:
– When installing at locations exceeding ambient temperatures of 55 °C
(149 °F), use only appropriate wiring specified for at least 25 K above the
maximum ambient temperature.
– Strip wire insulation by 5-7 mm (0.2 - 0.25").
– Minimum wire size:
– Polytron SE EX sensing heads: 0.7 mm
2
– Relay connection: 1 mm (AWG 18)
– Limitations for daisy-chaining gas transmitters (HART multi-drop): 2 flexible
2
wires, wire size 1 mm (crimped together with ferrule within a cage clamp).
– For remote installations, the maximum permissible distance between the
gas detector and the sensors is 30 m (100 ft).
– For the fieldbus version, only shielded cables may be used.
6.1

Terminal assignment

6.1.1 Version: Cable bushing with stranded wires, Figure A1
Power supply and signal output only
Terminal block for power supply and analog signals
Terminal 1
Assignment +
Only for Polytron 5100 EC:
Terminal block for power supply for 2-wire installation
Terminal 1
Assignment ±
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Installation
2
(AWG 21).
2 3
-
4-20 mA signal
2 3
open 4-20 mA signal
9