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Section 2: Performance verification
Model DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment Manual
2-16
DMM6500-905-01 Rev. A/July 2018
Figure 7: Connections for thermocouple verification
2. On the DMM6500, press the
FUNCTION
key and select
DC voltage
.
3. Press the
MENU
key.
4. Under Measure, select
Settings
.
5. Set the range to
100 mV
.
6. Set Input Impedance to
Auto
.
7. Set autozero to
On
.
8. Select the button next to Integration Rate. The Integration Rate dialog box opens.
9. Next to Unit, select
NPLC
.
10. Next to NPLC, select
1 PLC.
11. Select
OK
and press the
HOME
key to return to the Home Screen.
12. Set the calibrator to output
0 V
and enable the output.
13. Allow five minutes for settling of the thermal voltage.
14. Record the measured offset voltage to 1 µV precision. If necessary, use the DMM6500 filter
settings to reduce the noise of this measurement (for filter settings, go to
MENU > Measure
Calculations
).
15. Press the DMM6500
FUNCTION
key and select
Temperature
.
16. Press the
MENU
key.
17. Under Measure, select
Settings
.
18. On the Measure Settings screen, set the following values:
▪
Units:
°C
▪
Transducer:
TC
▪
Thermocouple:
J
▪
Temperature (simulated reference temperature):
0 °C
▪
Integration Rate:
1 PLC
▪
Auto Zero:
On