Agilent Technologies U1242A User's Manual And Service Manual page 59

Step Test Function
11 Turn the rotary switch to
12 Press to go to
13 Turn the rotary switch to
position
14 Press to go to
[1] The accuracy of 1 kW and 10 kW are specified after Math Null, that is used to substrate the test
[2] For the range of 100 MW, the RH is specified for <60%.
[3] Current can be measured from 50 mA to 440 mA continuously. An addition of 0.2% to the specified
[4] Current can be measured from 0.5 A up to 10 A continuously with the maximum operating
[5] Only available in U1242A.
[6] The meter should be ON for at least 1 hour before measurements are taken. The accuracy does not
U1241A/U1242A User's and Service Guide
A
position
A
function
[5]
T1 T1T2
or
[5]
T2
function
lead resistance and the thermal effect.
accuracy when measuring a signal greater than 440 mA to 1100 mA for 30 seconds maximum.
After measuring > 440 mA current, cool down the meter for twice the measuring time taken before
proceed for low current measurement.
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 meter to cool down for 60 seconds before applying low current measurement.
include the tolerance of thermocouple probe. When measuring temperature with respect to any
temperature calibrator, set both the calibrator and meter with external reference (without internal
ambient compensation 0 ºC). If both calibrator and meter are set with internal reference (with
internal ambient compensation), deviation may be present between the readings of the calibrator
and meter.
Performance Tests and Calibration
Range 5520A Output
[4]
10 A 10.000 A
[4]
10 A 10.000 A
[4]
10 A 10.000 A
–40 ºC until –40 ºC
[6]
1000 ºC
0 ºC
1000 ºC
–40 ºC until –40 ºC
[6]
1000 ºC
0 ºC
1000 ºC
Error from nominal 1 year
U1241A
± 65 mA
, 500 Hz ± 105 mA
, 1 kHz ± 155 mA
± 1.4 ºC
± 1ºC
± 11ºC
5
U1242A
± 1.4 ºC
± 1 ºC
± 11 ºC
45