Zero Offset is the amount of deviation in output or reading from the exact value at the lowest point of the measurement range.
The zero offset can be expressed in measurement or signal units, or as a percentage of the full scale range.
Manufacturers may include a setting tolerance for the zero offset on the product technical data sheet to help users determine the total error to be expected without any calibration adjustment.
For example a temperature transmitter for measuring 0 to 100°C with an output of 4 to 20mA, may have a zero offset tolerance of +/- 0.15mA.
Zero offset adjustable measurement products
41X High Precision Low Range Pressure Transmitter
XMPi Process Plant Gauge and Absolute Pressure Transmitter
TPSADA Digital Auto-Zero High Pressure Sensor
33X High Accuracy Digital Output Pressure Sensor
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Calibration Related Terms
More pages related to calibration technical terms.
- BSL – Best Straight Line
- Compensated Temperature Range
- Dead Weight Tester
- NPL – National Physical Laboratory
- Primary Pressure Reference Standard
- Secondary Pressure Standard
- Span Offset
- Traceable Calibration
- TSL – Terminal Straight Line
- UKAS – The United Kingdom Accreditation Service
- UKAS Calibration Certificate
- Zero Tare