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Relay configuration: Normally energized
Contact
Alarm indicator status and fault indica-
tion by the alarm indicator
Alarm trig-
gered
Normally
ON
Closed
Normally
OFF
Open
Relay configuration: Energized on alarm
Contact
Alarm indicator status and fault indica-
tion by the alarm indicator
Alarm trig-
gered
Normally
OFF
Closed
Normally
ON
Open
Connecting the relay connector
The wires for alarm devices have to be connected to the 9-pin
relay connector. A piece of wire insulation (heat shrink tube)
and a rubber boot are included for extra protection of relay
wires.
1. Pull off the 9-pin connector.
2. Cut the heat shrink tube as needed and slide over the
relay wires before insertion into the 9-pin connector.
3. Position the heat shrink tube at the edge of wire insulation
and use a heat gun to shrink the tubing securely onto wire
insulation.
4. Slide rubber boot over the wires.
5. Connect the wires for alarm 1 (pre alarm), alarm 2 (main
alarm) and fault alarm to the terminals, as indicated in the
wiring table.
6. Plug connector back into socket and tighten screws.
7. Close the instrument, see 4.2.8 Closing the instrument.
4.2.6 Connecting the 4-20mA interface
For connections to a control unit (PLC), refer to the
documentation corresponding to the control unit.
1. Pull off the 3-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 4.2.8 Closing the instrument.
4.2.7 Grounding
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.).
Instructions for use
|
Dräger Polytron 5000 Series
Transmitter-
Field wiring
specific fault
fault
indicated
not indicated
indicated
indicated
Transmitter-
Field wiring
specific fault
fault
not indicated indicated
not indicated not indicated
Increased safety (Ex e) installation - with Docking Station
Unless special measures are taken (e. g. capacitive
earthing), the shield must only be connected at one end.
4.2.8 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-in.
d. Polytron 5100 EC-specific:
The grounding cable coming from the wire harness is
connected to the grounding lug in the enclosure
(Figure H on the fold-out page).
2. Place PCB unit back into the enclosure.
3. Screw the lid 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 Safety-related
information!
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.
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 (part number 4544182)
– feedthrough 9 wires for power and relay (part number
4544169)
– feedthrough 14 wires for power, interface connections or
relay and remote sensor (part number 4544168) (not for
Polytron 5100 EC)
5.1
Mechanical installation with Docking
Station
The instrument 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
2. Pull hinge pin out of the docking station.
|
Use Drilling template (part
number 45 44 299)
Use pole mount kit (part num-
ber 45 44 198)
Use duct mount kit (part num-
ber 68 12 725)
For Polytron 57x0 IR:
68 12 300
en
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