Faults, cause and remedy
Dräger Polytron 2000
15
7
Faults, cause and remedy
8
Technical data
The measuring range and performance characteristics are dependent on the sensor installed – see the Instructions for Use for
the sensor.
Fault
Cause
Remedy
Flashing display
Sensor warming up
Wait until warm-up phase is finished.
Display
Device fault,
e.g. incorrect sensor installed
Use only a sensor with the gas type, item no.
and measuring range corresponding to the
data on the unit label.
Display
Full scale reading exceeded
Wait until the gas concentration is within the
measuring range.
Display
Too far below zero-point
If it occurs frequently: calibrate zero-point.
CE mark
Electromagnetic Compatibility (Directive 2004/108/EC)
Protection Class
IP 66 / IP 54, as per EN 60 529 / IEC 529 (NEMA 4)
Signal transmission to
the central controller
Analog
Output current
4 mA to 20 mA
Readings below the measuring range 3.8 mA to 4 mA
Measuring range exceeded
20 mA to 20.5 mA
Device malfunction
<3.2 mA
Maintenance signal
3.4 mA ±0.2 mA constant
Supply voltage
Supply voltage
12 V DC to 30 V DC
Protection from polarity reversal
Terminals for 0.5 to 2.5 mm
2
(20 to 14 AWG).
Physical specifications
Cable entry
M20x1.5, for 6 to 12 mm cable diameter
Dimensions (H x W x D)
166 mm x 135 mm x 129 mm
Weight
approx. 0.9 kg / 2.0 lb
Environmental conditions
Specifications for the sensor: see sensor data sheet
in operation
–40 to 65 °C (–40 to 160 °F)
1
700 to 1300 hPa
0 to 100 % r.h., non-condensing
in storage
-40 to 70 °C (-40 to 150 °F)
700 to 1300 hPa
0 to 100 % r.h., non-condensing
1
The display readability is restricted at temperatures below –20
°
C (–5
°
F).
