Front-Panel Operation
Sample Applications 4
4-65
Table 4-6. Harmonics Performance for Amps, Harmonics Screen
5502A
AUX Output
Fluke
Tester
Performance Limits
Amplitude Harmonic Phase
Harmonic
cursor
Amplitude Phase
(mV) No. (deg.) No. MIN MAX MIN MAX
20.0 1 10 1 19.1 20.9 8 12
20.0 3 20 3 19.1 20.9 14 26
20.0 9 30 9 19.1 20.9 21 39
20.0 13 40 13 19.1 20.9 29 51
20.0 21 50 21 18.7 21.3 35 65
20.0 31 60 31 18.1 21.9 40 80
Calibrate a Fluke 51 Thermometer
The Fluke 51 Thermometer measures temperature with a type J or K thermocouple. The
Calibrator simulates the two thermocouples. This simplifies the test and calibration. The
subsequent section shows how the Calibrator is used to calibrate this thermometer.
Note
These procedures are included here as an example. The Model 51 Service
Manual has the authoritative test and calibration procedures.
Verify the Thermometer
The subsequent test is to be done only after the thermometer has had time to become
stable to an ambient temperature of 23 °C ±5 °C (73 °F ±9 °F).
1. Connect the Fluke 51 Thermometer to the Calibrator with the correct connection
cable (Figure 4-19). The connection cable and miniconnector material must be the
same as the thermocouple type. For example, if you verify a K thermocouple, the
cable and miniconnector are for a type-K thermocouple.
5502A
CALIBRATOR
!
60V
24V
MAX
OFFSET
ON/OFF
F/C
HOLD
K/J THERMOMETER
51
Connection wiring must match thermocouple type, for example, K, J, etc.
gvx029.eps
Figure 4-19. Cable Connections to Verify a 50 Series Thermometer
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