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Transmitter installation
®
Polytron
5200 CAT-specific:
– Preferred sensor orientation: Downwards (see Figure E on
the fold-out page). If the sensor inlet is protected against
mechanical damage and the ingress of dirt and water, any
orientation is permitted.
– For CSA-compliant operation only:
The use of the optional splash guard (6812510) is
required for CSA approval.
®
Polytron
5310 IR-specific:
– Recommended sensor orientation: Downwards (see
Figure E on the fold-out page).
®
Polytron
5720 IR-specific:
– The preferred orientation of the Dräger PIR 7x00 sensor
must be observed (see Figure F on the fold-out page).
Larger deviations and the use of the preassembled splash
guard will increase the response time (see PIR 7x00
instructions for use).
– Any other orientation is only permissible if the PIR 7x00 is
used without a splash guard, e.g., for use in ducts. If the
sensor is installed vertically, there is an increased risk of
deposits forming on the optical surfaces.
– The use of the preassembled splash guard is
recommended to protect the sensor from water and dust.
– If a splash guard (part number 6811911 or 6811912) is
used, the status lights must be arranged in a vertical line
and the Dräger logo on the splash guard must be
horizontal. A maximum deviation of ±30 degrees from the
horizontal position is permissible.
– Liquid and/or deposits on the optical surfaces of the PIR
7x00 may result in a warning or fault.
– For the explosion-proof version, using a spacer (part
number 6812617) when the instrument is mounted on a
wall or to a level surface is recommended.
Special conditions in accordance with EN IEC 60079-1
– The threads for the flameproof / explosion-proof enclosure
do not conform to the minimum/maximum values indicated
in EN IEC 60079-1. The threads must not be re-worked by
the user.
4.1.1.2 Installation
The instrument can be mounted for measuring gases in
ambient air or inside of a duct/pipe.
1. Use M6 (1/4'') bolts with hex socket caps to mount the
enclosure to one of the following options.
Option
Mounting on a flat surface
Mounting on a pole
Mounting on a duct/pipe
10
Accessory
Drilling template: 4544300
Additionally for Polytron 57x0
IR: Spacer 6812617
Pole mount kit: 4544198
Duct mount kit: 6812725
®
For Polytron
57x0 IR:
6812300
4.1.2 Electrical installation
4.1.2.1 General information on electrical installation
– For tightening torques, see 15.8, for permissible cable
specifications, see 15.3.
– Strict compliance must be given to the electrical codes
that govern the routing and connection of electrical power
and signal cables to gas monitoring equipment.
– Ferrules must be used.
– The conductors for the power supply must have an
adequately low resistance to ensure the correct supply
voltage at the instrument.
– Wire insulation must be stripped by 5 to 7mm.
– The secondary circuit supplying power must be electrically
isolated from the mains circuit (does not apply for the relay
circuit).
– If the instrument is installed in locations where the ambient
temperature exceeds 55 °C, use appropriate cables that
are designed for use at temperatures at least 35 °C above
the maximum ambient temperature.
– Only use cable glands that are approved in the country the
system is installed in and suitable for the application.
– In accordance with EU Directive 2014/30/EU, this
instrument may not be connected to a DC system.
Providing the instrument with its own source of supply is
recommended.
Analog interface
– To ensure proper operation of the instrument, the
resistance of the 4 to 20 mA signal loop must not exceed
500 ohms.
When used in accordance with the metrological suitability
test compliant with EN IEC 60079-29-1, the resistance
must not exceed 300 ohms. With values above 300 ohms,
supply voltage monitoring cannot be ensured.
Version with relay
– For voltages >30 VAC or >42.4 VDC, the relay cables
must be covered with a protective tube or double-insulated
cables must be used.
– The wires to the relay module must be selected and
protected according to the rated voltages, currents, and
ambient conditions. They must be designed for a voltage
of 300 V.
– To ensure that a fault is recognized without having to look
at the instrument, an alarm device must be connected to
the fault relay.
– Voltage differences can cause insulation faults. Do not mix
electric loads with different voltage types (AC or DC).
Using DC loads, ensure that relay contacts only control
devices with the same DC voltage rating. Using AC loads,
ensure that relay contacts are only connected to devices
sharing a common phase.
Instructions for use
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Dräger Polytron 5000 Series
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