CALIBRATION
95
the ENTER key to store the standard value of AC Ground Bond voltage and display
will show:
Ground V, 7V OK
<
T E S T
>
t o C a l i b r a t e
14. Ground Bond, AC Current (Model 7504SA only)
Press the
Ú
key, the program will advance to the AC Current calibration of the
Ground bond test. The display will show:
Ground A, 30A
<
T E S T
>
t o C a l i b r a t e
Connect a AC standard Ammeter which can measure up to 30AAC to the High
current and Return output leads, then press the TEST button, the program will
automatically generate an output on the output leads of about 30AAC and the
display will show:
G- 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 AC Ground Bond current and display
will show:
Ground A, 30A OK
<
T E S T
>
t o C a l i b r a t e
15. Real Current
This menu item will be shown only when the Real Current option is installed.
Press the
Ú
key, the program will advance to the Real Current calibration of the AC
withstand mode. The display will show:
AC 5mAR, 500K
<
T E S T
>
t o C a l i b r a t e
Connect a resistor about 500K
W
/10W in series with a AC standard Ammeter which
can measure up to 10mA 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 5000V/10mA and the display will show:
AC Current = mA
Enter Standard I-out
