Measuring ranges from 0 ... 5 bar to 0 ... 1000 bar
Accuracy < 0.25 %
Output 0 ... 5 V, 0 ... 20 mA or 4 ... 20 mA available
For liquid and gaseous media
Can be used for dynamic and static measurements
Made of stainless steel, reliable, sturdy
Standardized output signal to 1.0 mV/V
Application
The precision pressure transducers model 8201 N are of a sturdy and compact design, they are low-priced and may be available in many measuring ranges. Because of their outstanding technical data and a high degree of reliability they offer an interesting alternative to pressure measuring applications in all fields of mechanical engineering, process engineering, aeronautics and astronautics.
The pressure transducers are easy to handle and immune to shock loads and vibrations as they are designed without moving parts. They have a small dead volume. Their design makes them well suitable for both dynamic and static measurements of liquid or gaseous media. The measuring element and housing of transducers with measuring range ≥ 0 ... 50 bar are made of one piece of stainless steel. This guarantees absolute sealing and insensitivity against aggressive media. For pressure transducers with ranges ≤ 0 ... 20 bar critical media can cause damages in the area of the sensor body’s welding seams. In this case please contact us.
All pressure transducers without an internal amplifier have a standardized output signal of 1.0 mV/V. This enables the user to change a transducer in a measuring chain as liked without following readjustment of the electronic. Differential pressures may be measured with only one evaluation device.
Customized designs are available on request.
Description
The measuring element of the precision pressure transducer consists of a diaphragm. On its reverse side a strain gauge rosette is applied, which is an assembly of 4 active strain gauges arranged in a bridge circuit. The pressure is measured against atmosphere, that means the space behind the diaphragm is connected to the surrounding atmosphere via a small outlet in the housing. This is the reason why this atmosphere has to be clean and dry. The medium to be measured is led via the pressure port to the diaphragm.
As a result of pressure acting on the diaphragm, it is deformed and the resistance of the strain gauges is changed. By applying a voltage to the strain gauge bridge the resistance change is transformed into an output voltage which is directly proportional to the pressure.
Each transducer is available with an internal amplifier, a socalled pressure transmitter, with voltage or current output.
The input of the internal amplifier is immune against polarity reversal and the output is immune against over-voltage. The amplifier circuitry is designed in a way that low-prized power supply units may also be used. The electrical connection is generated by a MIL specified housing connector.
The pressure port is formed by an M 16 x 1.5 internal metric thread with sealing ring groove. Other connections may be realized by adapters out of the burster product range.
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