712 Verification (V2.0 And Later); 712 Verification Outputs; Verification Rtd Values - Fluke 71X Series Calibration Manual

71X Series
Calibration Manual
14. Disconnect all connections to the 712. The 712 verification test is complete.

712 Verification (V2.0 and Later)

1. Push  button until Input comes up on the display.
2. Push  until PT100 392 JIS is on the display.
3. Push  until 4W is on the display. Set temperature standard to C.
4. Set the 5520A to 2-wire output with 2-wire compensation turned off; then make 2-
5. Set the 5520A to output the RTD (resistance) values in Table 39. Verify that the
5520A Outputs (C)
-180 (25.799 Ω)
100 (139.171 Ω)
300 (213.957 Ω)
550 (300.822 Ω)
6. Remove the 4-wire connection on the 712 (rightmost connection). Push  once and
7. Restore the 4-wire connection to the 712 and maintain 2-wire connection on the
8. Push  until Ω is displayed.
9. Set the 5520A to source resistance, to a 2-wire output, with 2-wire compensation
10. Set the 5520A to source the resistance values in Table 40. Verify that the resistance
30
sales@GlobalTestSupply.com
Table 38. 712 Verification Outputs
712 Outputs (Ohms)
5.00
300.00
1500.0
3000.0
wire connections on the 5520A to 4-wire connections on the 712. Set the 5520A to
PT 3916 (ITS-90) mode.
temperature readings are within the limits shown for 4-wire UUT.
Table 39. 712 Verification RTD Values
3-wire 712 Readings ( C)
-179.72 to -180.28
99.6 to 100.4
299.7 to 300.3
549.48 to 550.52
verify that 3W is on the display and that the temperature readings are within the
limits shown for 3-wire readings. Push  to return to 4W mode.
5520A.
turned off.
values on the 712 are within the limits shown.
Fluke-Direct
Fluke 8508A Readings (Ohms)
4.90 to 5.10
299.90 to 300.10
1499.5 to 1500.5
2999.0 to 3001.0
4-wire 712 Readings ( C)
-179.8 to -180.2
99.7 to 100.3
299.6 to 300.4
549.6 to 550.4
.com
1.888.610.7664