20
2.
Use the scroll wheel to set the voltage
level.
ACW
DCW
IR
GB
0.100kV ~ 5kV
0.100kV ~ 6kV
0.05kV ~ 1kV (50V steps)
3.00A~ 32.00A (STW-9904)
Note
When setting the voltage for STW-9900, be aware that a
maximum of 500VA can be set for ACW and 100W for
DCW, or for STW-9800, be aware that a maximum of
200VA can be set for ACW and 50W for DCW
The ground bond voltage (GBV) is calculated as the HI
SET limit x Test Current.
2.3.5 Setting the Test Frequency
Background
A test frequency of 60Hz or 50Hz can be set, regardless of
the input line voltage. The test frequency setting only
applies to ACW and GB tests.
Steps
1.
Press the UP / DOWN arrow keys to
bring the cursor to the FREQ setting.
I R
G B
m A
A CW
D CW
I / L
H
O
I M E
T
R
E
F R E Q =
0 H z
6
0
100
k
V
I
D
E
M
T I
E
= 0 0 1 . 0 S
R
0 0 m A
E
R F
=
#
0 .
0
M
M A U
N
N A
_
1 . 0 0 m A
I
H
E
S
= 0
T
0 0 . 1 S
0
A M P
=
R
T
2
M A N U = * * * - 0 0
cursor
2.
Use the scroll wheel to set the test
frequency.
ACW, GB
50Hz, 60Hz
Note
The test frequency can only be set for ACW or GB tests.
2.3.6 Setting the Upper and Lower Limits
Background
There is both a LO and HI judgment setting. When the
measured value is below the LO SET setting, the test will
be judged as FAIL. When the value exceeds the HI SET
setting the test will be judged as FAIL. Any measurement
between the LO SET and HI SET setting is judged as
PASS. The LO SET limit cannot be made greater than the
HI SET limit.