Keysight U1241AN, User'S And Service Manual

Page: 67 / 85

Performance Tests and Calibration 5
Keysight U1241AN User’s and Service Guide 67
14
Press to go to function
100 mV
100.00 mV, 1 kHz ± 1.04 mV
100.00 mV, 2.5 kHz ± 2.04 mV
100.00 mV, 20 kHz ± 2.04 mV
15
Press to go to T1 function
[e]
–40 ºC until
1000 ºC
[f]
–40 ºC ± 1.4 ºC
0 ºC ± 1ºC
1000 ºC ± 11ºC
[a] The accuracy of 100 Ω to 10 k Ω are specified after math Null, that is used to subtract the test lead resistance and the thermal effect.
[b] For the range of 100 M Ω , the RH is specified for <60%.
[c] Current can be measured from 50 mA to 440 mA continuously. An addition of 0.2% to the specified accuracy when measuring a signal greater
than 440 mA to 1100 mA for 30 seconds maximum. After measuring > 440 mA current, cool down the multimeter for twice the measuring
time taken before proceeding for low current measurement.
[d] Current can be measured from 0.5 A up to 10 A continuously with the maximum operating temperature of 50 ºC. An addition 0.3% needs to be
added to the specified accuracy if the signal measured is in the range of 10 A to 19.999 A for 15 seconds maximum. After measuring a current
of > 10 A, leave the multimeter to cool down for 60 seconds before applying low current measurement.
[e] — Set both Fluke 5520A and multimeter to internal reference.
— Prior to performing measurements, connect one end of the K-type thermocouple (with miniature TC connector on both ends) to the 5520A
TC output, and the other end to a precision thermometer to verify that the source outputs the desired value. Adjust the source accordingly
if necessary.
— To perform the measurement, connect one end of the K-type thermocouple (with miniature TC connector on both ends) to the 5520A TC
output, and the other end to the multimeter via a TC-to-banana adapter. Allow at least 1 hour for the multimeter to stabilize.
[f] The multimeter should be ON for at least 1 hour before measurements are taken. The accuracy does not include the tolerance of the
thermocouple probe. When measuring temperature with respect to any temperature calibrator, set both the calibrator and multimeter with
external reference (without internal ambient compensation 0 ºC). If both calibrator and multimeter are set with internal reference (with
internal ambient compensation), deviation may be present between the readings of the calibrator and multimeter.
Table 5-2 Verification tests (continued)
Step Test Function Range 5520A Output
Error from nominal
1 year
U1241AN