i
i
NOTICE
To ensure that a fault is recognized - without having to
look at the instrument - an alarm device must be
connected to the fault relay.
Installation
Dräger Polytron 5100
11
1
Connector for EC sensing head
4544911f
9 Pin Connector (Relays)
Fault Relay
A2 Relay
A1 Relay
Pin
1
2
3
4
5
6
7
8
9
Mark NO
C
NC
NO
C
NC
NO
C
NC
NO = Normally open, NC = Normally closed, C = Common
3.5
Electrical installation with Docking
Station
Installing this configuration is a two-step process.
First, the Docking Station is mounted and connected to the
field wires. Second, the main instrument enclosure with the
electronics and sensor is attached to the Docking Station.
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 placed into operation; this helps prevent
damage to the instrument during the construction phase.
The connection between the Docking Station and the main
instrument is realized via a ‘feed-through’. Depending on the
instrument selected, there are 2 types of feed-through.
z
3 wire for power (part number 4544182)
z
9 wire for power and relay (part number 4544169)
3.5.1
Field wiring
For field wiring of Docking Station refer to Instructions for Use
9033242.
3.6
Installing sensor
z
Loosen set-screw (2),
2mm Allen screw on
black sensor housing.
3
4
5
2
00733298.eps
1
4544911h
z
Unscrew bayonet ring
(3) and remove blank.
z
Remove sensor from
packaging.
z
Insert sensor (4) into the
opening. The Dräger
logo on the sensor must
point to the mark on the
sensing head housing
(5).
z
Lock sensor with
bayonet ring.
z
Tighten set-screw (2).
Mandatory for Zone 22
installations.
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