Associated Research 7704 User Manual

93
AC 3.5mA, 100K OK
T E S T t o C a l i b r a t e
10.3.7. Calibration of DC 3500A Range
Press the  key, the program will advance to the DC 3500A range calibration of hipot test.
The display will show:
DC 3500A, 100K
T E S T t o C a l i b r a t e
Connect a resistor about 100K/10W in series with a DC standard Ammeter which can
measure up to 3000A to the output leads. The Ammeter should be connected to the return
lead, then press the TEST button, the program will automatically generate an output of about
300V/3000A and the display will show:
Current = A
Enter Standard I-out
Use the Numeric keys to enter the standard value of current, unit A, and then press the
ENTER key to store the standard value of DC 3500A range of hipot test and the display will
show:
DC 3500A, 100K OK
T E S T t o C a l i b r a t e
10.3.8. Calibration of DC 350A Range
Press the  key, the program will advance to the setting and reading of DC 320A range
calibration of the hipot test. The display will show:
DC 350A, 1M
T E S T t o C a l i b r a t e
Connect a resistor about 1M/0.25W in series with a DC standard Ammeter which can
measure up to 300A to the output leads. Connect the Ammeter to the return leads, then press
the TEST button, the program will automatically generate an output of about 300V/300A and
the display will show:
Current = A
Enter Standard I-out
Use the Numeric keys to enter the standard value of current, unit A, and then press the
ENTER key to store the standard value of DC 350A range of the hipot test and the display
will show:

Associated Research 7704 Specifications

General

Voltage Range	0 - 5 kV AC, 0 - 6 kV DC
Frequency Range	50/60 Hz
Display Type	LCD
Power Supply	100 - 240 VAC, 50/60 Hz
Safety Standards	UL, CSA, CE
AC Hipot Voltage	5 kV AC
DC Hipot Voltage	6 kV DC
Insulation Resistance	1 MΩ - 50 GΩ
Resistance Range	1 MΩ - 50 GΩ