Dräger Polytron 8700 - Technical data; Signal transmission to the central controller; Housing; Dimensions (LxWxD)

32 Dräger Polytron 8700/8720
Technical data
13 Technical data
CAUTION
Specifications and restrictions in the Instructions for Use and/or data sheets for the sensors used must be observed.
For SIL applications the Dräger Polytron 8X00 Safety Manual must be observed.
The measuring range and performance characteristics are dependent on the sensor installed, see the Instructions for
Use and/or data sheets for the sensors used.
!
Signal transmission to the central controller
Analog
Output current 4 mA to 20 mA
Drift below zero-point 3.8 mA to 4 mA
Measuring range exceeded 20 mA to 20.5 mA
Device malfunction ≤1.2 mA
Fault on analog output >21 mA
Maintenance signal 3.4 mA constant signal or 1 Hz modulation between 3 and 5 mA
(selectable)
Supply voltage
Operating voltage 3-wire shielded cable, 24 V DC (10 to 30) V DC
Inrush current 2.3 A for 2 ms at 24 V DC, 10 Ω conductor resistance
Operating current (max.) 330 mA at 24 V DC, no relay, sensor not remote
350 mA at 24 V DC, with relay, remote sensor
Relay design (optional) SPDT, 5 A at 230 V AC, 5 A at 30 V DC, resistive load
For safety-related applications (SIL2), the maximum contact rating is
reduced (see also the Dräger Polytron 8X00 Safety Manual).
Housing NEMA 4X
Protection Class IP 65/66/67
Dimensions (LxWxD)
Without e-Box approx. 150 x 290 x 130 mm (5.9" x 11.4" x 5.1")
With e-Box approx. 180 x 300 x 190 mm (7.1" x 11.8" x 7.4")
Mounting spacer (diameter x D) 150 x 25 mm (5.9” x 1”)
Weight
Without e-Box, aluminum approx. 3.9 kg (8.5 lbs.)
Without e-Box, stainless steel 316 approx. 5.7 kg (12.6 lbs.)
With e-Box, aluminum approx. 5.2 kg (11.5 lbs.)
With e-Box, stainless steel 316 approx. 7.1 kg (15.6 lbs.)
Display Resolution 128 x 64, back-lit
Environmental conditions Specifications for the sensor: see sensor data sheet
Pressure 700 to 1300 hPa (20.7 to 38.4 in. Hg)
Humidity 0 to 100 % R. H., non-condensing
Temperature
without relay
with relay
-40 to +77 °C (-40 to +170 °F)
-40 to +70 °C (-40 to +158 °F)
Environmental influences See respective sensor data sheets.