Transducer checks pressure up to 5kPa
A
Gems Sensors product story
Edited by the Engineeringtalk editorial team
Jan 18, 2006
The 5266 series low differential pressure transducer from Gems Sensors has bidirectional differential pressure measurement from 0-50Pa up to 5kPa full scale at an accuracy of +/-1%.
The 5266 series low differential pressure transducer from Gems Sensors has bidirectional differential pressure measurement from 0-50Pa up to 5kPa full scale at an accuracy of +/-1%.
The sensor also has long term stability, which reduces the need for service calls after installation.
It is based on a durable variable capacitance sensor, which provides reliable readings at low pressures.
A sensing diaphragm in the unit is deflected by the pressure, which in turn changes the dielectric gap and hence the capacitance of the sensor.
Custom built ASIC signal conditioning within the unit produces a high level output which needs little amplification, providing accuracy and long term stability.
The unit has tight zero tolerances, which improves accuracy of measurement in low flow applications, and reduces the need for zero setting in the field.
This means lower installation costs.
The sensor is made from stainless steel, which provides thermal stability and overpressure protection: the unit will withstand pressures up to 69kPa.
The 5266 also has low EMI and RFI susceptibility, allowing better control in areas subject to walkie-talkie or cell phone interference, and can be used with unregulated power supplies owing to its internal regulation.
The transducer is suitable for heating and ventilating systems, where it improves air flow control, particularly under low flow conditions.
Its bidirectional capability is useful in clean rooms and isolation rooms where containment is critical.
The unit also has potential applications in energy management systems, environmental pollution control, oven pressurisation, furnace draft controls and variable air volume and fan control.
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