When “Custom” selected for
Screen4 Pressure Units,
enter the Screen4 Pressure
Scaling High value.
Value of the pressure
custom engineering unit
corresponding to the URV of
the transmitter
The limits are:
-999999 to 999999
Field Calibration for Alternate Ranges
Although all ST 700 transmitters are precisely calibrated at the factory, user calibration can be
performed at two points (Calibrate High Point and Calibrate Low Point) within the span range of
LRV to URV, but is typically unnecessary. It is critical that the pressure standard used for calibration
at these two points should be certified to at least twice the pressure transmitter’s accuracy. This is to
prevent misleading results that can occur when pressure standards are used that are considered
accurate, but in reality are worse than the accuracy of factory-calibrated transmitters.
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