ACA 3mA, 30mA, 300mA 20~50Hz 0.09
50 Hz~1KHz 0.04
1~5KHz 0.1
5~10KHz 0.16
10~30KHz 0.32
10A 50 Hz~5KHz 0.1
FREQ 300Hz ,3KHz
30KHz,300KHz
3MHz 30MHz
0.00025
3MHz/30MHz 时用 VC5020
AMBIENT ENVIRONMENT STATION
Temperature: 23±2℃
Relative humidity: ≤70%RH
Power : varied at 5% of rated voltage
Frequency of power: rated value±1Hz
Warmup: 2 hours for standard equipment, 1 hour for measured meter
OPERATION FOR CALIBRATOR
Calibrate the functions and ranges listed in the table 5-2.
Table 5-2. INPUT SIGNAL
Function Range Input 1（First） Input 2（Second） Unit
Volts dc DC300mV 300.00 mV
DC3V 3.0000 V
DC30V 30.000 V
DC300V 300.00 V
DC1000V 1000.0 V
Volts ac AC300mV（1KHz） 30.00 300.00 mV
AC3V（1KHz） 0.3000 3.0000 V
AC30V（1KHz） 3.000 30.000 V
AC300V（50Hz） 30.00 300.00 V
AC750V（50Hz） 75.0 750.0 V
Resistance 300Ω 300.00 Ω
3KΩ 3.0000 KΩ
30KΩ 30.000 KΩ
300KΩ 300.00 KΩ
3MΩ 3.0000 MΩ
30MΩ 10.000 MΩ
300MΩ 10.000 MΩ
Current dc DC0.3mA 0.30000 mA
DC3mA 3.0000 mA
DC30mA 30.000 mA
DC300mA 300.00 mA
DC10A 3.0000 A
Current ac AC0.3mA（1KHz） 0.03000 0.30000 mA
AC3mA（1KHz） 0.3000 3.0000 mA
AC30mA（1KHz） 3.000 30.000 mA
AC300mA（1KHz） 30.00 300.00 mA
AC10A（1KHz） 0.300 3.000 A
Frequency(3V
of sine wave)
3KHz 3.0000 KHz
NOTE
To calibrator the meter, connect the instrument power cord to a power receptacle with earth ground.
DC Volts calibration
1)
Turn on the meter, press the DCA, dBm and button simultaneity to enter calibration mode, and the
“CAL” appears on the top left corner of the LCD(the “CAL” annunciator always appears in calibration
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