Dräger Polytron 8000 Serie Instrucciones De Uso página 14

en | Installation of sensors or sensing heads
5 Installation of sensors or sensing
heads
5.1 Installing the EC sensor on the
Polytron 8100 EC
See figure C on the fold-out page.
1. Unscrew the locking screw (2) (2 mm hexagon socket
screw).
2. Unscrew and remove the bayonet ring (3) and remove the
dummy disk.
3. Insert the sensor (4) in the opening and turn until it
engages in the gas detector. This does not damage the
sensor connector.
4. Secure the sensor with the corresponding bayonet ring
(3).
For Dräger SensorAlive, a different bayonet ring must
be used than for other EC sensors.
5. Tighten the locking screw (2) so that the bayonet ring
cannot come loose (required for installations in zone 22).
If the Dräger SensorAlive is being installed in an
existing system for the first time, the firmware must be
updated to version 4.0.0 or higher. Contact Dräger for
support.
5.2 Installing the sensing head
Depending on the type of explosion protection, there will be
various sensing heads used. Information relating to the
installation of the sensing heads can be found in the
respective sensing head manual.
For remote applications, the cable shielding must be attached
on both the sensor and transmitter side. The cable length
should be ≤ 30 m.
Remote versions with "Explosion-proof (Ex d)" explosion
protection
Transmitter
Polytron 8100 EC
Polytron 8200 CAT
(for DQ sensors)
Polytron 87x0 IR
Polytron 8200 CAT
(for LC sensors)
Polytron 8310 IR
Polytron 87x0 IR
14
Sensing head IFU part
numbers
Remote EC sensing head
(9033247)
DQ NPT aluminum remote
sensor, DQ NPT steel remote
sensor (4544286)
Remote PIR 7000 (334) with
stainless steel or aluminum
sensor connection housing
(4544286)
Stainless steel or aluminum
sensor connection housing
(4544286)
Remote versions with "Increased safety (Ex e)" explosion
protection
Transmitter
Polytron 8100 EC
Polytron 8200 CAT
Polytron 8310 IR
Polytron 87x0 IR
6 Commissioning
6.1 General information
– Before connecting the instrument to the power supply,
connect the wires for the relay and connect up the sensor.
– Before starting normal operation of the instrument, check
whether the configuration and adjustment settings are
correct.
In order to guarantee its safe operation according to
BVS 13 ATEX G 001 X and PFG 14 G 001 X, the following
standard alarm settings for the instrument must remain
unchanged.
– The relays must be set to Normally energ. and the
alarm A2 (main alarm) to Latching and Non-
acknowledgeable or Pre-Acknowledgeable.
– Alarm A1 (pre-alarm) may only be set to
Acknowledgeable if used for activation of an acoustic
alarm device.
– Latching in the event of over range (see "Setting the DQ
sensor latching", page 37).
When operating in accordance with BVS 13 ATEX G 001 X
and PFG 14 G 001 X, consideration must be given to the
following special conditions:
– Polytron 8200 CAT:
– When streaming the DQ or LC sensor with air
containing measured gas, measured values may
increase by up to 32 %.
These values may increase by up to 70 % when
operating with the DQ remote calibration adapter.
– The transmitter with LC sensor must be operated in
combination with a control unit that indicates over
range with a latching signal. Internal transmitter alarm
relays are not permitted.
– The transmitter with LC sensor must be adjusted with
its sensor in the standard operating position.
– False alarms may be triggered during the warm up
period of the LC sensor.
– Polytron 8100 EC:
Minor changes to the concentration may see the setting
time t20 of the transmitter with EC sensor exceed the EN
50104 threshold.
Instructions for use
Sensing head IFU part
numbers
Remote EC sensing head
(9033247)
Polytron SE Ex sensing
heads (9033888)
DrägerSensor IR (9023843)
PIR 7x00 (9023885)
®
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Dräger Polytron 8000 Series