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Transmitter with Modbus Output - GDT-20
Brand: WIKA Alexander Wiegand SE & Co. KGThe model GDT-20 transmitter is a multi-sensor system with digital output for the measurement parameters of pressure and temperature. Based on these measured values, the condition-related data can be determined.
Features- High-accuracy sensor technology.
- MODBUS output protocol via RS-485 interface.
- Ingress protection IP 65.
- Very good long-term stability and EMC characteristics.
- Compact dimensions.
Specifications
Measuring Ranges
- Density: 0 ... 60 g/litre (8.87 bar abs. at 20° C)
- Pressure reference: Absolute
- Overpressure limit: up to 30 bar abs
- Burst Pressure: 52 bar abs.
- Pressure: 0 ... 16 bar abs.
- Temperature: -40° to +80° C
Accuracy Data
- ± 0.06 %, ± 10 mbar (0° to 80° C)
- Pressure: ± 0.20 %, ± 32 mbar (-40 ... < 0° C)
- Temperature: ± 1 K
- Density: ± 0.60 %, ± 0.35 g/litre (-40° to +80° C
- Specifications only valid for Clean, Gaseous SF6
Long-term Stability at Reference Conditions
- Pressure: ≤ ± 0.05 % of Span/Year
- Temperature: ≤ ± 0.10 % of Span/Year
Refresh Rate
- Pressure: 20 ms
- Temperature: 20 ms
- Density: 20 ms
Process Connection
- Transmission Fluid: Synthetic oil
- G 1/2 B (Male), Stainless Steel
Case
- Stainless Steel
Permissible Humidity
- ≤ 90 % Relative Humidity, Non-Condensing
Ingress Protection
- IP65, only when plugged in and using mating Connectors with the corresponding ingress Protection
Electrical Safety
- Protected Against Reverse Polarity, Protected Against Overvoltage
Dimensions
- Diameter: 48 mm
- Height: 103 mm
Weight
- Approximately 0.40 kg
- Permanent monitoring of the relevant gas condition parameters in closed tanks
- For indoor and outdoor SF6 gas-insulated equipment
