Pressure Measurement
29
IM 767361-01E
• When working with absolute pressure models, zero calibration is very complex, so use the
relative function to correct errors if the operating position differs from that in which zero
calibration was performed.
• In the case of the absolute pressure model, zero calibration values cannot be changed by
initializing setup information using the RC communications command or the
ENTER/LOCAL
after the power switch is turned ON.
• In the case of the absolute pressure model, zero calibration values are not initialized even if
error code 60 (set-up information back-up error) occurs. However, they are initialized after a
voltage drop in the back-up battery. In this case, error 63 will be displayed.
Input Function
CAUTION
• Never apply a pressure exceeding the permitted input pressure to the
input port, otherwise damage to the instrument may result.
The allowable input pressure range is shown below.
Model
Allowable Input Pressure Range
Display
767351
2.7 kPa abs to 500 kPa gauge
–12.0000 to 12.0000 kPa
767353
2.7 kPa abs to 500 kPa gauge
Up to 156.000 kPa
767355
2.7 kPa abs to 3000 kPa gauge
Up to 840.00 kPa
767356
2.7 kPa abs to 4500 kPa gauge
Up to 3600.00 kPa
767357
1 Pa abs to 500 kPa abs
Up to 156.000 kPa abs
767361
2.7 kPa abs to 500 kPa gauge
–12.0000 to 12.0000 kPa
767363
2.7 kPa abs to 500 kPa gauge
156.000 kPa or lower
767365
2.7 kPa abs to 3000 kPa gauge
840.00 kPa or lower
767366
2.7 kPa abs to 4500 kPa gauge
3600.00 kPa or lower
767367
1 Pa abs to 500 kPa abs
156.000 kPa abs or lower
767370
1 Pa abs to 50 kPa gauge
*1
–1.20000 to 1.20000 kPa
767371
2.7 kPa abs to 500 kPa gauge
–12.0000 to 12.0000 kPa
767372
2.7 kPa abs to 500 kPa gauge
–156.000 to 156.000 kPa
767373
2.7 kPa abs to 1000 kPa gauge
–156.00 to 840.00 kPa
767381
2.7 kPa abs to 50 kPa gauge
–12.0000 to 12.0000 kPa
767383
2.7 kPa abs to 500 kPa gauge
156.000 kPa or lower
767385
2.7 kPa abs to 3000 kPa gauge
840.00 kPa or lower
767386
2.7 kPa abs to 4500 kPa gauge
3600.00 kPa or lower
767387
1 Pa abs to 500 kPa abs
156.000 kPa abs or lower
*1: The difference between L and H is less than or equal to 50 kPa.
• Make sure the following input pressure is not exceeded when using the
767370 or 767381. If exceeded, damage to the the sensor section may
result.
767370: A difference in pressure between the High and Lo sides of less
than 50 kPa.
767381: A difference to the atmospheric pressure of less than 50 kPa.
Pressure Measurement
