3. Specifications
3. Specifications
Measuring ranges
Dew point:
EN
Density
:
1)
Temperature:
Pressure:
Burst pressure:
Overpressure limit:
Pressure reference:
1) The pressure conditions are configured during the calculation of the gas mixture.
Permissible temperature ranges
Operating temperature:
Storage temperature:
Permissible humidity
≤ 90 % r. h. (non-condensing)
Voltage supply U
DC 17 ... 30 V
Power consumption
GDT-20: max. 0.5 W
GDHT-20: max. 3 W
Electrical connection
Circular connector M12 x 1 (5-pin)
Modbus
RTU via RS-485 interface
Ingress protection
IP 65, only when plugged in and using mating connectors with the corresponding ingress
protection
Weight
approx. 0.40 kg
EMC directive
2004/108/EC, EN 61326 emission (group 1, class B) and interference immunity (industrial
application)
EMC tests
Interference immunity per IEC 61000-4-3: 30 V/m (80 MHz ... 2.7 GHz)
■
Burst per IEC 61000-4-4: 4 kV
■
ESD per IEC 61000-4-2: 8 kV/15 kV, contact/air
■
8
-50 ... +20 °C (GDHT-20 only)
0 ... 60 g/litre (8.87 bar abs. at 20 °C)
-40 ... +80 °C
0 ... 16 bar abs.
52 bar abs.
up to 30 bar abs.
Absolute
-40 ... +80 °C, -40 ... +176 °F
-40 ... +80 °C, -40 ... +176 °F
B
WIKA operating instructions transmitter, models GDT-20, GDHT-20