Documenting Process Calibrator
Performance Verification Tests
9
Performance Verification Tests
Fluke recommends re-certification each year. To re-certify, do the verification procedure.
If test points are out of tolerance, calibrate the Product and then re-verify. Two-year
specifications are included if the highest accuracy is not necessary.
Use the subsequent tests to make sure that the Product is inside its specification limits.
Verification Equipment
The equipment necessary for verification of the Product is shown in Table 2. If these
instruments are not available, you can replace them with other source and measure
instruments that have the same the minimum specification requirements.
Table 2. Equipment Required for Verification
Equipment Minimum Specification Recommended Model
Calibrator
0.002 % for DC Voltage,
Resistance and Current. 0.01 % for
AC Volt
Fluke 5522A
Frequency Counter 1 Hz to 50 kHz, 25 ppm timebase Tektronix FCA3000
Oscilloscope
1 Hz to 50 kHz (duty cycle accuracy
1 %)
Fluke 123
DMM
0.002 % for DC Voltage,
Resistance and Current
Fluke 8508A
2-Short jumpers banana type Fluke PN 944632
2-Test leads banana to banana type Fluke TL20
Thermocouple miniplug
polarize, with type-K thermocouple
welded to copper wire
see Figure 10
Lag bath
characterized by a 0.1 °C standard
thermometer (0.02 °C resolution)
and a 1-pint thermos bottle
Fluke 1551A Stik Thermometer, Dewar
Flask and Cap
Smart (HART) Pressure Transmitter HART communication protocol Rosemount 1151 or 3051
HART Interface Cable Assembly Fluke PN 3562160
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