K415 Issue No. 1 44
Test Equipment
The calibration procedures require the following test equipment.
*ppm = parts per million
Table 1 Internal/External Pressure Transducer Verification
PC* = Pressure Calibrator HC* = Hydraulic Calibrator LP* = Low Pressure Calibrator
Test Equipment and Instrument Parameter/Range
Calibration
Equipment
Accuracy
Calibration
Uncertainty
Digital Voltmeter - 5V input ±30 *ppm ±1 digit ±10 *ppm ±5µV
Digital Voltmeter - 50V input ±45 *ppm ±1 digit ±11 *ppm ± 110 µV
Digital milliammeter - 55mA input ±150 *ppm ±4 digit ±100 *ppm ± 1nA
Digital milliammeter - 24mA output ±150 *ppm ±4 digit ±160 *ppm ± 1nA
Precision thermometer - ambient temperature ±0.2°C ± 0.1°C ±1 digit
Deadweight tester - pressure internal/external Class A deadweight <0.025%
Nominal applied value as a% of
±full-scale
Permissible deviation
PC*, HC* and Indicator
Versions
LP* Versions and
external LPE 9400
sensors
0% (10% for absolute ranges) ± 0.025% FS ± 0.05% span
20% ± 0.025% FS ± 0.05% span
40% ± 0.025% FS ± 0.05% span
60% ± 0.025% FS ± 0.05% span
80% ± 0.025% FS ± 0.05% span
100% ± 0.025% FS ± 0.05% span
80% ± 0.025% FS ± 0.05% span
60% ± 0.025% FS ± 0.05% span
40% ± 0.025% FS ± 0.05% span
20% ± 0.025% FS ± 0.05% span
0% (10% for absolute ranges) ± 0.025% FS ± 0.05% span
Calibration
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