5560A/5550A/5540A
Service Manual
58
8. When completed, disconnect the present setup.
9. Use the appropriate conversion to convert from base units to units for the specific evaluation step.
10. With the entire table populated, evaluate each step for compliance to limits. If Guardbanding is to
be applied, create a table from the example in this manual, where the acceptance limits are
properly modified by your Guardbanding method.
Thermocouple Calibration
Table 22 lists the required equipment.
The thermocouple function is calibrated for source and measure. The thermocouple function relies on
internal sensing to offset the error caused by the temperature at the thermocouple port. Only one
measurement of an actual thermocouple is required to verify the performance of the temperature
sensing at the thermocouple port. The rest of the measurement verifies the linearity of the
thermocouple function.
Step Product Range Product Output Test Frequency Calculated Product Output Limits
11 120 mH 12.1 mH 100 Hz ±113 µH
12 120 mH 100 mH 100 Hz ±210 µH
13 1.2 H 0.121 H 10 Hz ±1157 µH
14 1.2 H 1 H 10 Hz ±2.3 mH
15 12 H 1.21 H 3 Hz ±12.2 mH
16 12 H 10 H 3 Hz ±28.0 mH
17 120 H 12.1 H 2 Hz ±126.6 mH
18 120 H 100 H 2 Hz ±320 mH
Table 22. Required Equipment for Thermocouple Calibration
Equipment Description Manufacture/Model/PN Quantity
Calibrator (precision voltage source) Fluke 5730A 1
Digital Multimeter Fluke 8588A 1
Thermometer Fluke 1504 1
Thermistor probe Fluke 5610-9-B 1
Type J thermocouple Omega TJ36-ICIN-18U-8-SMPW-M 1
Dewar flask with cap Various 1
Type B copper mini-plug with copper wire Various 1
Table 21. Calibration Steps for Inductance with LCR Meter (cont.)
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