Record As-Found Calibration Parameters; Evaluate As-Found Measurement Errors - Fluke 1551A EX Calibration Manual

Record as-found Calibration Parameters

Before any adjustments are made, the present values of the Product calibration
parameters should be recorded. Connect the serial cable between the computer and the
Product. The commands used to read the values of the calibration parameters are given in
Table 3. Commands must be terminated with a carriage return character. Table 3 may
also be used to record the values of the calibration parameters.
Parameter
TEMP1
ADJ1
TEMP2
ADJ2
TEMP3
ADJ3
DATE

Evaluate as-found Measurement Errors

The Product should be tested to evaluate its accuracy before any adjustments are made. It
is recommended that it be tested near the five temperatures listed in Table 4, depending
on the model.
Point
1
2
3
4
5
At each of the test temperatures, readings are recorded of the temperature of the reference
thermometer and the indication of the Product. Before recording the readings, make sure
the temperatures of the bath, reference thermometer, and 1551A Ex/1552A Ex
Thermometer are settled and stable.
Table 3. As-found Calibration Parameters
Command
CAL:USER:TEMP1?
CAL:USER:ADJ1?
CAL:USER:TEMP2?
CAL:USER:ADJ2?
CAL:USER:TEMP3?
CAL:USER:ADJ3?
CAL:DEV:DATE?
Table 4. Test Temperatures
1551A Ex
-50 C
-25 C
0 C
100 C
157 C
Value (fill in)
1552A Ex
-80 C
-25 C
0 C
100 C
300 C
Stik Thermometer
Calibration
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