| Select Answer Mode | |
|---|---|
| Operation | |
| Performance Limits | |
| Calibration Deviation | |
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Featured pressure sensor products
Pressure Indicator Transmitters - Pressure indicator transmitters have a digital indicator for providing a local pressure reading, and a 4-20mA pressure transmitter.
0-10 Volts Output Pressure Transducers - 0 to 10 volts output pressure transducers with amplified signal conditioning electronics and 3 or 4 wire configuration for generating a 0-10Vdc analog signal which corresponds to a specified pressure range.
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User Guide
This multi-function tool can be easily adapted to calculate all the main parameters required by users when setting up, configuring and calibrating the different types of pressure sensors.
Answer Modes
Operation
These answer modes will help you determine the exact input pressure or output reading for an entered measurement based on the selected pressure range and output type corresponding to your pressure sensor. Since pressure sensors are mostly scaled in bar or psi, a pressure converter is also available to convert a pressure reading to alternative units.
As an example, this is how you would set-up the tool for determining the expected output reading from a -15 to 100 psi range with a 4 to 20 mA output pressure transmitter.
Performance Limits
These choices will help you convert the manufacturers performance specification into directly relatable values for pressure and output. Manufacturer’s mainly define performance characteristics as a proportion of range, pressure or output units, and these answer modes will allow you to convert linearity, hysteresis, repeatability, stability, zero and offset errors into a pressure uncertainty, output deviation or proportion of full scale.
To demonstrate how you would use this tool to compare the manufacturer’s stated performance with actual measurements, this is how you would configure the calculator to convert a 0.25% full scale accuracy to a pressure error for a -75 to +75 psi range pressure transducer.
Calibration Deviation
Use these answer modes when calibrating your pressure sensor to determine the deviation of the output from the ideal value for a particular calibration set-point, as a proportional error or in units of output or pressure.
If you were calibrating a 350 bar pressure transducer with a 0 to 33 millivolts output, this is what you would enter to determine the pressure error in millibars, if the output is 16.512 mV for a 50% calibration setpoint of 175 bar.
Featured pressure sensor products
Thin Film Pressure Sensors - Thin film pressure sensors utilize a molecularly bonded thin layer of metal or semiconductor that changes resistance under pressure, enabling compact, accurate, and durable sensors for various applications.
16 bar, 200°C steam pressure transmitter and gauge - Combined pressure transmitter and indicator in one package with the option for use with high temperature media such as steam at 200°C
Parameters
Pressure
This is the pressure which is measured by the pressure sensor, you can either enter a value to see what output to expect from a pressure sensor or you can enter the value verified by a calibration reference and compare it to the actual output to determine the calibration error.
Conversion
Pressure sensors are often scaled in bar or psi measurement units, but used to measure pressure in other units. You can use this converter to check the value of any pressure value in other units.
Low Limit
This is lowest pressure which the sensor will measure, and is used to define the lower limit of the pressure range, that also corresponds to the lowest output value.
High Limit
This is highest pressure which the sensor will measure, and is used to define the upper limit of the pressure range, that also corresponds to the highest output value.
Output
This is what the pressure sensor sends out in the form of an analogue signal or digital reading. The output will typically vary proportionally with the measurement range as a straight line, although there will be slight deviations due to the accuracy limitations of the pressure sensor.
Accuracy
This the proportion of the pressure sensor output range which represents the amount of deviation from a perfect measurement. It is used to define the specification limits of pressure sensors on manufacturers product data sheets and brochures, and also to calculate calibration errors. Accuracy is often expressed as a percentage of full scale for pressure sensors.
Pressure Error
This is the amount of pressure deviation from a perfectly accurate measurement, and represents the scope of uncertainty in the output of the pressure sensor, expressed in pressure units.
Output Error
This is the amount of output deviation from a perfectly accurate measurement, and represents the scope of uncertainty in the output of the pressure sensor.
Featured pressure sensor products
Pressure Sensors for Data Logging with a Computer - Easily log and analyze pressure data on your PC. These digital sensors connect via serial interfaces and come with software for preset interval logging of fluids and gases.
TPSA Precision High Pressure Transducer - High pressure transducer for pressure testing applications with pressure ranges from 0...4 bar (60 psi) up to 0...1000 bar (15,000 psi) gauge with a measurement accuracy of 0.1%.