7
*. Change the input connector to
“
A
”
terminal and change the range to "2A".
1. Set the out put of Meter calibrator to "1A 50Hz" and check the reading
value of DUT is in the specification, " 984.0 to 1016.0mA"
2. Set the out put of Meter calibrator to "1A 60Hz" and check the reading
value of DUT is in the specification, " 989.0 to 1011.0"
3. Change the out put of Meter calibrator to
“
1A 1kHz
”
and check the reading
value of DUT is in the specification, " 979.0 to 1021.0"
4. Change the out put of Meter calibrator to
“
1A 5kHz
”
and check the reading
value of DUT is in the specification, " 969.0 to 1031.0"
*. Change the range to "20A".
1. Set the out put of Meter calibrator to "19.5A 50Hz" and check the reading
value of DUT is in the specification, "19.198 to 19.803"
2. Set the out put of Meter calibrator to "19.5A 60Hz" and check the reading
value of DUT is in the specification, "19.295 to 19.705"
3. Set the out put of Meter calibrator to "19.5A 1kHz" and check the reading
value of DUT is in the specification, "19.100 to 19.900"
4. Set the out put of Meter calibrator to "19.5A 2kHz" and check the reading
value of DUT is in the specification, "18.905 to 20.095"
1-6. DC Current Function Check
Specification;
Range Resolution
Accuracy
Over Load
Protection
2 mA
20 mA
200 mA
100 nA
1 uA
10 uA
±
(0.75% + 5d)
2 A
100 uA
±
(1.0% + 5d)
2A /250V
( F Type Fuse)
20 A
1 mA
±
(1.0 % + 10d)
15A/250V
*. Set the Function and range of DUT to "DC A" and
“
2mA
”
.
1. Set the out put of Meter calibrator to "1mA DC" and connect to
“
mA
’
terminal.
2. Check the reading value of DUT is in the specification, " 0.9915 to 1.0085"
*. Change the range to "20mA".
1. Set the out put of Meter calibrator to "10mA" and check the reading
value of DUT is in the specification, " 9.915 to 10.085"
*. Change the range to "200mA".
1. Set the out put of Meter calibrator to "100mA" and check the reading
value of DUT is in the specification, " 99.15 to 100.85"
*. Change the input connector to
“
A
”
terminal and change the range to "2A".
1. Set the out put of Meter calibrator to "1A" and check the reading
value of DUT is in the specification, " 989.0 to 1011.0mA"
*. Change the range to "20A".
1. Set the out put of Meter calibrator to "19.5A" and check the reading
value of DUT is in the specification, "19.295to 19.705"
Do not apply currents above 10A for more than 15 seconds.
Do not apply currents above 10A for more than 15 seconds.
( T Type Fuse)
19.0A
19.0A
19.0A
19.0A
19.0A
18.8
19.2
18.705
19.295
18.8
19.2
18.61
19.39
18.42
19.58
