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WIKA GD-20 - high-precision industrial measurement instrument.
WIKA is a global market leader in pressure and temperature measurement technology. With over 75 years of experience, WIKA instruments are trusted in process industries worldwide. Glorient is a professional supplier of genuine WIKA products with competitive pricing and fast worldwide delivery.
| Product Category | Sf6 Gas Products |
| Product Type | Gas density sensors |
| Summary | For gas density, temperature and pressure of insulating gases, with Modbus ® or analogue 4 ... 20 mA signal |
| Applications | Permanent monitoring of the relevant gas condition parameters in closed tanks For internal and external SF 6 -insulated equipment Density measurement of alternative gases in electrical equipment or in the laboratory |
| Key Features | High-accuracy sensor technology Digital MODBUS ® RTU or analogue 4 … 20 mA output signal IP67 ingress protection, optionally with IP6k9k field case Very good long-term stability and EMC characteristics Compact design |
| Description | Permanent monitoring In order to prevent system failures in switchgear and network outages, the permanent monitoring of the gas density is essential. The model GD-20 calculates the current gas density from the pressure and temperature using a complex virial equation in the gas density sensor´s powerful microprocessor. Pressure changes resulting from thermal effects will be compensated by this and will not affect the output value. MODBUS ® fieldbus The RS-485 interface communicates using the MODBUS ® RTU protocol. The instrument's output parameters and their units can be configured and read according to requirements.The GD-20 model can be freely configured at the factory for any defined gas mixture consisting of SF 6 , N 2 , CF 4 , O2, CO 2 , 3M™ Novec™ 4710, He and Ar. The calculation is based on the partial pressure method of the individual gas components. Signal stability Due to its high long-term stability, the sensor is maintenance-free and requires no recalibration. Due to the hermetically sealed weld seam and a measuring cell design without sealing elements, the permanent sealing of the measuring cell is ensured. The gas density sensor is also available with analogue output signal (4 … 20 mA) for output of the compensated pressure (p at 20 °C [68 °F]). |
| Product Category | Sf6 Gas Products |
| Product Type | Gas density sensors |
| Summary | For gas density, temperature and pressure of insulating gases, with Modbus ® or analogue 4 ... 20 mA signal |
| Applications | Permanent monitoring of the relevant gas condition parameters in closed tanks For internal and external SF 6 -insulated equipment Density measurement of alternative gases in electrical equipment or in the laboratory |
| Key Features | High-accuracy sensor technology Digital MODBUS ® RTU or analogue 4 … 20 mA output signal IP67 ingress protection, optionally with IP6k9k field case Very good long-term stability and EMC characteristics Compact design |
| Description | Permanent monitoring In order to prevent system failures in switchgear and network outages, the permanent monitoring of the gas density is essential. The model GD-20 calculates the current gas density from the pressure and temperature using a complex virial equation in the gas density sensor´s powerful microprocessor. Pressure changes resulting from thermal effects will be compensated by this and will not affect the output value. MODBUS ® fieldbus The RS-485 interface communicates using the MODBUS ® RTU protocol. The instrument's output parameters and their units can be configured and read according to requirements.The GD-20 model can be freely configured at the factory for any defined gas mixture consisting of SF 6 , N 2 , CF 4 , O2, CO 2 , 3M™ Novec™ 4710, He and Ar. The calculation is based on the partial pressure method of the individual gas components. Signal stability Due to its high long-term stability, the sensor is maintenance-free and requires no recalibration. Due to the hermetically sealed weld seam and a measuring cell design without sealing elements, the permanent sealing of the measuring cell is ensured. The gas density sensor is also available with analogue output signal (4 … 20 mA) for output of the compensated pressure (p at 20 °C [68 °F]). |
