W30-31E Datasheet, PDF (2/4 Pages) Amphenol Corporation – General Eastern Liquid Differential Pressure Transmitters

This model is available with the following power and
signal configuration:
Model W30
• Two-wire
• DC Voltage In
• 4 to 20 mA out
The span or zero adjustment is performed with a
20-turn potentiometer for fine resolution. A 50%
adjustment in output is possible.
The Series W transmitters comply with the European
requirements of Council Directive 2004/108/EC.
Operation
The pressure transmitter consists of two high accuracy
piezoresistive sensors with stainless steel isolation
diaphragms. Both sensors measure static pressure, and
the difference between these two measurements is
computed electronically. The use of high accuracy and
stable sensors makes this measurement possible. Since
each sensor measures the full static pressure, there is
no possibility of over-pressurizing the transmitter if one
sensor is disconnected from the line. No complex and/
or expensive balancing valves are needed.