WIKA GD-20 Operating Instructions Manual page 68

9. Specifications
Gas mixtures and components can be individually configured and combined at the factory. The calculation is based on
the physical principle of the partial pressure method. The gas mixture cannot be changed subsequently.
Output signal
Output signal
EN
Voltage supply
Power consumption
Model GD-20-A
Model GD-20-D
Maximum permissible load R
Time response
Settling time
1)
Switch-on time
2)
1) E.g. with any sudden pressure spikes
2) Time after switching on until the first measured value is output.
Output parameters
Output parameters digital versions (model GD-20-D)
Absolute pressure at 20 °C [68 °F]: bar, MPa, kPa, psi, Pa, N/cm
■
Gauge pressure based on 1,013 mbar at 20 °C [68 °F]: bar, MPa, kPa, psi, Pa, N/cm
■
Density: g/litre, kg/m
■
Temperature: °C, °F, K
■
Absolute pressure: bar, MPa, kPa, psi, Pa, N/cm
■
Gauge pressure based on 1,013 mbar: bar, MPa, kPa, psi, Pa, N/cm
■
Output parameters analogue version (model GD-20-A)
Absolute pressure at 20 °C [68 °F] as 4 ... 20 mA current signal
68
DC 10 ... 30 V
≤ 0.75 W
≤ 0.45 W
(model GD-20-A) R
A
< 10 ms
≤ 500 ms
3
≤ (U - 9.5 V) / 0.023 A with R
A B
2
2
2
WIKA operating instructions gas density sensor, model GD-20
in Ohm and U in V
A B
2