Page 68 of 79 [EN] English – K0571 Issue 1
User Manual Druck DPI611
Note any deviations between the instrument and the pressure
standard and consider traceability (accuracy to a National Standard).
If, after a calibration check, the results exceed the tolerance in the
specification (or other suitable performance standard), carry out a
calibration adjustment.
5.3 CALIBRATION ADJUSTMENTS
If the instrument is operating correctly, only zero and full-scale
calibration will vary. Any excessive non-linearity or temperature
effects indicate a fault. The instrument should be returned to a
qualified service agent.
5.4 BEFORE STARTING
Use only original parts supplied by the manufacturer. To do an
accurate calibration, use the following:
• Calibration equipment specified in Table 5-1.
• Stable temperature environment: 21 ± 1°C (70 ± 2°F).
Before starting a calibration procedure, it is recommended leaving the
equipment in the calibration environment for a minimum of two
hours.
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