35
WIKA operating instructions, model GDM-100-T
EN
14535893.01 01/2022 EN/DE
Suitable for the following gases
■
SF
6
■
N
2
■
CF
4
■
O
2
■
CO
2
■
3M™ Novec™ 4710
■
He
■
Ar
Gas mixtures and components can be individually configured and combined ex-works.
The calculation is based on the physical principle of the partial pressure method. The
gas mixture cannot be changed subsequently.
Output signal
Output signal
Voltage supply
DC 10 … 30 V
Power consumption
Model GD-20-A
≤ 0.75 W
Model GD-20-D
≤ 0.45 W
Maximum permissible load
R
A
(model GD-20-A)
R
A
≤ (U
B
- 9.5 V) / 0.023 A with R
A
in ohm and U
B
in V
Time response
Settling time
1)
< 10 ms
Switch-on time
2)
≤ 500 ms
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
2
■
Gauge pressure based on 1,013 mbar at 20 °C [68 °F]: bar, MPa, kPa, psi, Pa, N/cm
2
■
Density: g/litre, kg/m
3
■
Temperature: °C, °F, K
■
Absolute pressure: bar, MPa, kPa, psi, Pa, N/cm
2
■
Gauge pressure based on 1,013 mbar: bar, MPa, kPa, psi, Pa, N/cm
2
Output parameters, analogue version (model GD-20-A)
Absolute pressure at 20 °C [68 °F] or gas density in g/l for SF₆ gas as 4 ... 20 mA-current
signal
9. Specifications
