3. Preparation
3.4. Calibrating the transmitter
14 OneWireless XYR 6000 ISA100.11a Compliant Pressure Transmitter User's Manual Revision 3
March 2012
5. Apply the lower pressure to the meter body. When applying a negative pressure the high side of
the meter body will be at a lower pressure than the low side.
6. Select the Cal Lower command and wait for the calibration status value to change from NONE to
SUCCESS, SUCCESS with EXCESS, of FAILURE. If the status returns FAILURE stop and
check that the value of the lower calibration point is within the range of the meter body.
7. Apply the upper pressure to the meter body. As with the lower pressure value, when applying a
negative pressure the high side of the meter body will be at a lower pressure than the low side.
8. Select the Cal Upper command and wait for the calibration status value to change from NONE to
SUCCESS, SUCCESS with EXCESS, of FAILURE. If the status returns FAILURE stop and
check that the value of the upper calibration point is within the range of the meter body. If the
status returns SUCCESS with EXCESS the calibration was applied but the adjusted
characterization value is outside it’s allowed adjustment range and the accuracy of the process
value over the calibrated range is not guaranteed to be within the specified tolerance.
Note: When applying pressure, insure the pressure is stable in order to get a valid setting. Some pressure
sources can vary in pressure (bounce especially dead weight testers) and this will give false reading.
Notes on Calibration Status:
SUCCESS: If the calibration status return SUCCESS it is indicating that the transmitter successfully
applied a gain and offset that provides a process value that is within the specified accuracy over the
calibrated range of .075% of the reduce range or ±0.025 + 0.05 20 psi span psi or ±0.025 + 0.05 ( 1.4 bar
)span bar in % span.
FAILURE: If the calibration status returns FAILURE it is indicating that the transmitter could not be
calibrated either due to the calibration points being beyond the range of the meter body or the calibration
span (difference between the upper and lower calibration points) is too small.
SUCCESSS with EXCESS: If the calibration status returns SUCCESS with EXCESS it is indicating that
the calibration was successful but the applied gain or offset resulting from the calibration is deviates by
more than 5% of the characterized range. This could happen if the applied calibration pressure for either
the upper or lower calibration point deviates from the selected calibration point in a manner that will cause
the adjusted gain or zero correction be greater than 5% of the URL.
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