Fluke 724 Calibration Manual

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Calibration Manual
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Lower Display Thermocouple Measurement Tests
1. Remove the test leads from the UUT terminals; then connect a Type-J thermocouple
lead between the TC jack on the UUT and the TC jack on the 5520A, as shown in
Figure 10.
2. Press T on the UUT until J appears on the lower display. If necessary, press D
(use the configuration menu on the 726) so the temperature is displayed in °C.
3. Set the 5520A to output the Type-J thermocouple voltages shown in Table 13 and
verify the UUT temperature readings are within the limits shown (values use the ITS-
90 curves).
4. Press STBY on the 5520A.
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Figure 10. Lower Display Thermocouple Test Connections
Table 13. Type-J Thermocouple Readings
5520A Settings
(referenced to 0 °C)
724/725 UUT Readings 726 UUT Readings (CJC On)
0.0 °C (0.000 mV) -0.7 °C to +0.7 °C -0.4 °C to +0.4 °C

Fluke 724 Specifications

General

Temperature Range	-10°C to 55°C
Thermocouple Types	J, K, T, E, R, S, B, L, U, N
Current Measurement	0 to 24 mA
Operating Temperature	-10°C to 55°C
Function	Process calibrator
RTD Types	Pt100, Pt500, Pt1000
Voltage Measurement	0 to 10 V
Loop Power	24 V DC
Display	Dual Display
Power Supply	4 AA batteries
Resolution	0.1 °C
Storage Temperature	-20 °C to 60 °C
Battery Life	25 hours
Relative Humidity	0 % to 90 %
Safety Compliance	CSA C22.2 No. 1010.1:1992