Dräger Polytron 2000 Notice D'utilisation page 15

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