MTS Series 793 - Manual (Page 198)

Calibration Settings
About Sensor Calibration
All sensors require calibration to ensure that their outputs accurately measure the physical condition they are
sensing. Calibration is performed using the Station Manager application.
Sensor calibration data
The calibration process results in sensor calibration data that contains all the conditioner settings for a specific
sensor. You can save this calibration data in a sensor file, parameter set, or Transducer ID module (Series
493 Hardware only). In the Station Setup window, you can assign calibration data (typically a sensor file) to
each sensor input.
Calibration process
Calibration requires a laboratory standard sensor/conditioner. The laboratory standard sensor is installed
with the sensor you are calibrating so that both are exposed to the same conditions.
During calibration, you command the system to specific values and compare the conditioner’s output to the
output of a laboratory standard sensor/conditioner. You can then use the Station Setup window to adjust the
conditioner settings so that its output matches the output of the laboratory standard.
Calibration schedules
The amount of time between sensor calibrations depends on the sensor type, test requirements, and the
results of periodic shunt-calibration checks.
Shunt calibration verification
The shunt calibration function provides a convenient way to check sensor calibration for sensors that use a
DC conditioner with a bridge circuit.
About Sensor Calibration Data
When you recalibrate a sensor, you can use the Station Setup window to update the calibration settings and
resave the calibration data in the format assigned to the sensor. You can also use the Sensor File Editor
window to open and update a sensor file with the new calibration settings and save the sensor file.
Access levels
The access level set in the Station Manager application determines what calibration tasks you can perform.
• The Calibration access level allows you to edit and assign calibration data.
• The Tuning access level allows you to assign calibration data but you cannot edit calibration data.
Calibration data
Sensor calibration data includes:
• Sensor serial number and calibration date.
• Conditioner type, serial number, and dimension.
• Calibration type, range definitions, excitation voltage, gain, polarity, and other conditioner settings.
198 MTS Series 793 Control Software
Station Setup