Cable Specifications; Power Supply And Relays; General Specifications; Environmental Parameters - Dräger Polytron 8000 Serie Notice D'utilisation

Operating Impedance
mode range of the
signal loop
230 to 500 Ω
®
HART Mul-
tidrop opera-
tion
For further information regarding the fieldbus interface
installation consult the corresponding Technical Hanbook.

17.3 Cable specifications

For non-conduit installations, use shielded cables.
®
Analog and HART connection with control unit and
power supply
Power supply and
signals
Relays
Digital connection with control unit
Instruments with fieldbus interfaces and remote sensors
must be installed with shielded cables.
Modbus RTU
®
PROFIBUS PA
TM
Foundation Field-
bus
Power supply

17.4 Power supply and relays

1)
Relay rating
2)
SPDT
230 V
30 V , resistive
load
1) For safety-related applications (SIL 2), the maximum contact rating is
®
reduced (see Polytron 8xx0 Safety Manual).
2) Single pole, double throw, (changeover electrical contacts)
®
Power supply Polytron
Operating voltage
Inrush current
Instructions for use |
Dräger Polytron
Supply voltage range
10 to 30 V DC
3-core shielded cable
24 - 12 AWG / 0.2 - 2.5 mm²
20 - 12 AWG / 0.5 - 2.5 mm²
4-core, ≥ AWG 26
2-core, Cable type A
Wave impedance R :135 - 165 Ω
w
Capacitance / unit length C':<
30 pF/m
Loop resistance R':110 Ω/km
Core diameter d:0.64 mm
Core cross section q:> 0.34 mm²
Shield coverage:> 90 %
24 - 12 AWG / 0.2 - 2.5 mm²
0.1 A - 5 A
0.1 A (minimum) - 5 A
8xx0
1)
10 to 30 V at the instrument
2.3 A for 2 ms at 24 V ,10 Ω
resistor
®
8000 Series
1) At supply voltages of < 7 V DC the instrument provides a fault signal.
The warning signal "undervoltage" depends on the connected load at
the 4-20 mA output and the cable resistance. In case of lower load
(e.g. 230 Ω), the fault relay drops out and the current output is 0 mA.
In case of higher load (e.g. 500 Ω), warning message 011 is indicated.
Operating current (max.)
®
Polytron 8100 EC
without relay, non-
remote sensor
with relay, remote
sensor
®
Polytron 8200 CAT
without relay, non-
remote sensor
with relay, remote
sensor
®
Polytron 8310 IR
without relay, non-
remote sensor
with relay, remote
sensor
®
Polytron 87x0 IR
without relay, non-
remote sensor
with relay, remote
sensor

17.5 General specifications

®
Enclosure Polytron 8xx0
Enclosure material
Enclosure protection NEMA 4X
Display
®
1) Polytron 8100 EC NEMA 4X enclosure protection pending.

17.6 Environmental parameters

See sensor data sheet for sensor specifications and
influences.
®
Polytron 8xx0
values acc. to explosion approval
during operation:
Pressure
Humidity
Temperatures
Technical data
80 mA
100 mA
105 mA (DrägerSensor DQ)
130 mA (DrägerSensor LC)
145 mA (DrägerSensor DQ)
165 mA (DrägerSensor LC)
145 mA
185 mA
330 mA
350 mA
copper free aluminum or 316L
stainless steel
1)
IP 65/66/67
Resolution 128 x 64 pixel, back-lit
23.6 to 32.5 in. Hg (800 to
1100 hPa)
0 to 100%RH, non-condensing
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