TOS9213S/ TOS9213AS
5-21
5.5.1
Settings on the IR1 screen
Setting the insulation resistance test voltage
The test voltage to be applied to a DUT can be set to -10
V
through -1020
V
DC (at
a resolution of 1
V
) on TOS9213S, and -10
V
through -1530
V
(at resolution of 1
V
)
on TOS9213AS. (The negative (-) mark is not displayed.)
To make setting, use the rotary knob with the cursor at the test voltage.
1.
To mo
v
e the c
u
rsor to the test
v
oltage, press the F1 key (
V
OLT). (The
keys can also
b
e
u
sed.)
2.
Using the
keys, mo
v
e the c
u
rsor to the target digit.
3.
Using the rotary kno
b
, set the test
v
oltage.
• With the lower judgement function on, if the test voltage divided by the lower ref-
erence exceeds 1.1 mA, “READY” disappears and “O
V
ER 1.1 mA” flashes at the
top right of the LCD to indicate that testing cannot be performed. In case of the
test voltage setting exceeding 1020
V
on TOS9213AS, however, “O
V
ER 0.11
mA” flashes when the test voltage divided by the lower reference exceeds 0.11
mA. In either case, lower the test voltage or raise the lower reference.
VOLT LOWER UPPER
TIMER
10
V
0.01
M
3.0
s
IR1
IR1
READY
LOWER
F1 F2 F3 F4 F5
SHIFT
LOWER
ON
UPPER
OFF
TIMER
ON
–
NOTE
