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Conventions in this document
2
Conventions in this document
2.1
Meaning of the warnings
The following warnings are used in this document to alert the
user to potential dangers. A definition of the meaning of each
warning is as follows:
Alert icon Signal word
WARNING
CAUTION
NOTICE
2.2
Trademarks
Trademark
Trademark owner
Dräger
®
Polytron
Dräger
®
DrägerSensor
The following webpage lists the countries in which Dräger's
trademarks are registered: www.draeger.com/trademarks.
3
Description
3.1
Product overview
Refer to the figures on the fold-out page
A 1
Housing cover
A 2
Threaded pin (2 mm hexagon socket screw)
A 3
Bow
A 4
Printed circuit board unit (and optional relay)
A 5
Lower part of the housing
A 6
Opening for the sensor
A 7
Lead-out cable
A 8
Docking station
A 9
Explosion-proof instrument
A 10 Explosion-proof instrument with docking station for
increased safety
A 11 Explosion-proof instrument with mounting spacer (only
for Polytron 57x0 IR)
A 12 Mounting spacer (only for Polytron 57x0 IR)
B
Test setup for adjustment
C
Polytron 5100 EC
8
Warning classification
Indicates a potentially hazard-
ous situation. If not avoided, it
could result in death or serious
injury.
Indicates a potentially hazard-
ous situation. If not avoided, it
could result in physical injury. It
may also be used to alert
against unsafe practices.
Indicates a potentially hazard-
ous situation. If not avoided, it
could result in damage to the
product or environment.
D 1
Polytron 5200 CAT
D 2
Polytron 5310 IR
E 1
Polytron 57x0 IR with splash guard
E 2
Polytron 57x0 IR without splash guard
3.2
Feature description
The Polytron 5000 family includes the following instrument
versions:
– Polytron 5100 EC, operates with electrochemical sensors
(EC sensors)
– Polytron 5200 CAT, operates with catalytic Ex sensors
(CatEx sensors/catalytic, DQ or LC DrägerSensors)
– Polytron 5310 IR, operates with infrared Ex sensors (IREx
sensors)
– Polytron 5700 IR, operates with infrared sensors
(PIR 7000 sensors)
– Polytron 5720 IR, operates with infrared sensors
(PIR 7200 sensors)
The following interfaces are possible:
– 4 to 20 mA analog (per NAMUR recommendation NE43)
– Relay board
If the 4 to 20 mA interface is used, the current must be
monitored between 0 mA and 3.5 mA. Currents between
0 mA and 3.5 mA can indicate a special state (see "Special
states", page 14).
For instruments with a relay board, local alarm devices can be
activated. For instruments without a relay board, only the red
LED flashes on the instrument when an alarm is active.
Gas concentrations, status messages, and menu choices are
displayed on a backlit graphic LC-display and 3 colored LEDs.
Navigation through the menu takes place by tapping the
relevant key on the pane of the enclosure lid with a magnetic
wand. The instrument can be configured, calibrated and
maintained non-intrusively without declassifying the area.
The instruments can be connected to a Dräger controller or a
programmable logic control (PLC) with a sealed conduit or
approved cable gland.
The instruments can be operated as a current source or
current sink if the power is supplied by the controller. If the
instruments are connected to a separate power supply, they
can only operate as a current source.
The Polytron 5100 EC can be operated in a 2-wire or 3-wire
configuration. This function changes the operating mode and
deactivates options that use too much power (e.g. operation
as a current source).
The housings of the instruments are made of sturdy stainless
steel or aluminum, and are suitable for indoor and outdoor
application.
Instructions for use
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Dräger Polytron 5000 Series
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