Appendix
Yamatake Corporation
A-16
ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter
4-2: Calibrating Range
The ST3000 Smart Transmitter has two-point calibration. This means when you cali-
brate two points in the range, all the points in that range adjust to that calibration.
(Device setup) - (Diag/Service) - (Calibration) - (Correct Input)
• Select “Correct Input LRV” or “Correct Input URV”.
• You will be warned to remove the loop from automatic control. After doing so,
press OK.
• When prompted, adjust pressure source to apply pressure equal to LRV (0%) or
URV (100%), then press OK.
• When pressure is stable, press OK.
• When prompted, remove pressure.
4-3: Resetting Calibration
A Corrects Rest returns the zero and span calibration factors to their default values.
The transmitter calculates its output based on the characterization equation alone,
without any compensation for the residual errors.
(Device setup) - (Diag/Service) - (Calibration) - (Reset Corrects)
• When prompted, remove the loop from automatic control. Press OK.
• Prompt notifies you that a Reset Corrects is about to occur. Press OK.
• When message “Reset Corrects OK” appears, press OK.
• Calibration is reset to default values.
• When prompted, return the loop to automatic control and press OK.
ST3000: TAG001
Correct Input
1 Zero Trim
2 Correct Input LRV
3 Correct Input URV
4 Reset Corrects
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