Connecting The 4-20Ma/Hart ® Interface; Grounding; Connecting The Fieldbus Interface; Closing The Instrument - Dräger Polytron 8000 Serie Notice D'utilisation

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Increased safety (Ex e) installation - with Docking Station

4.2.6 Connecting the 4-20mA/HART
For connections to a control unit (PLC), refer to the
documentation corresponding to the control unit.
1. Pull off the 5-pin connector.
2. Connect the three wires for power and signal to the
appropriate terminal as indicated in the wiring table and
figure.
3. Plug connector back into socket and tighten screws.
4. Close the instrument, see 4.2.9 Closing the instrument.

4.2.7 Grounding

To ground fieldbus and modbus connections refer to the
corresponding technical manual.
1. Ground the enclosure of the instrument locally at the
grounding lug, see figures G and H on the fold-out page..
2. Connect the shield of the wires only to the instrument
earth ground of the controller (e g. chassis, ground
busbar, etc.).
Unless special measures are taken (e. g. capacitive
earthing), the shield must only be connected at one end.

4.2.8 Connecting the fieldbus interface

1. Pull off the 2-pin and 4-pin connector.
2. Connect the two wires for power and the four wires for
signal to the appropriate terminals as indicated in the
wiring table and figure.
3. Plug connector back into socket and tighten screws.
4. Close the instrument, see 4.2.9 Closing the instrument.
For further information regarding the fieldbus interface
installation consult the corresponding Technical Handbook.

4.2.9 Closing the instrument

1. Ensure the following connections are properly made:
a. Wiring screws are tightened to the correct torque.
b. All cable connectors are secured with screws.
c. The sensor connector is plugged.
d. The grounding cable coming from the enclosure is
connected to the lug on the PCB unit, see figures G
and H on the fold-out page.
2. Place PCB unit back into the enclosure.
3. Screw the lid back on, until it is seated with correct torque,
and tighten set-screw.
5 Increased safety (Ex e) installation
- with Docking Station
Obey the safety statements mentioned in 1.3 Mechanical
installation!
The Docking Station can be pre-mounted, wired and sealed
with the supplied cover. Once the site is ready for
commissioning, the instrument is then hooked up to the
Docking Station and taken into operation; avoiding that the
instrument is damaged during the construction phase.
14
®
interface
The connection between the Docking Station and the main
instrument is realized via a 'feedthrough'. Depending on the
instrument selected, there are 3 types of feed-through.
– feedthrough 3 wires for power
– feedthrough 9 wires for power and relay
– feedthrough 14 wires for power, interface connections or
relay and remote sensor (not for Polytron
5.1
The transmitter can be mounted for measuring gases in
ambient air or inside of a duct/pipe.
1. Mount the Docking Station to one of the following options.
Option
Mounting on a flat surface
Mounting on a pole
Mounting on a duct/pipe
To mount the transmitter on the Docking Station:
1. Pull hinge pin out of the Docking Station.
2. Align the boss of the transmitter with the boss of the
Docking Station and push the hinge back in.
 The transmitter is now supported and can swivel to
3. Install the electrical wiring see instructions for use of the
docking station (9033242).
4. Securely screw the transmitter onto the Docking Station
using 4 screws with a tightening torque of 8 Nm (70 LB
IN.). The 4 screws are part of the delivery (M6, 1/4" bolts
with hex socket caps).
5.2
1. Refer to Instructions for Use 9033242.
Mechanical installation with Docking
Station
Drilling template 4544299
Pole mount kit 4544198
Duct mount kit 6812725
For Polytron
6812300
give access to the wiring.
Electrical installation with docking
station
Instructions for use |
Dräger Polytron
®
8100 EC)
®
87x0 IR:
®
8000 Series