TOS9213S/ TOS9213AS
10-5
10.2 Insulation Resistance Testing Mode
O
u
tp
u
t section
O
u
tp
u
t-
v
oltage range
-25
V
to -1000
V
(TOS9213S), -25
V
to -1500
V
(TOS9213AS)
Resol
u
tion
1
V
Acc
u
racy
± (1.5 % of S 2
V
)
Maxim
u
m rated load
1
W
(-1000
V
DC/1 mA) (*1)
*
1. 0.1 mA maximum when the test voltage setting exceeds -1020
V
on TOS9213AS.
Maxim
u
m rated c
u
rrent
1 mA (*1)
Ripple
1 k
V
no-load
2
V
p-p or less
Maxim
u
m rated load
10
V
p-p or less
V
oltage reg
u
lation
1% or less [Maxim
u
m rated load
→
no load]
Short-circ
u
it c
u
rrent
12 mA or less
Discharge f
u
nction
Forced discharge at the end of test (discharge resistance: 25 k
Ω
)
The discharge time can
b
e set to a
v
al
u
e from 0.5 s to 300 s (*2).
*
2.About the discharge time setting: If you set the discharge time to 0.0 s or if the voltage between the output terminals
exceeds approximately 30
V
even after the specified discharge time has passed, the TOS9213S/ TOS9213AS will continue
discharging until the voltage between the output terminals falls below approximately 30
V
.
O
u
tp
u
t-
v
oltage monitoring
f
u
nction
If the o
u
tp
u
t
v
oltage exceeds ±(10% of the s 50
V
), o
u
tp
u
t is c
u
t off and
the protection f
u
nction acti
v
ates.
V
oltmeter
Analog
Scale
10 k
V
DC F.S
Acc
u
racy
±5% F.S
Indicator
Mean-
v
al
u
e responsi
v
e / root-mean-sq
u
are
v
al
u
e scale
Digital
Meas
u
rement range
0
V
to -1200
V
(TOS9213S), 0
V
to -1700
V
(TOS9213AS)
Resol
u
tion
1
V
Acc
u
racy
± (1 % of r 1
V
)
Resistance meter
Meas
u
rement range
0.01 M
Ω
- 9.99 G
Ω
(at rated c
u
rrent range of 50 nA to 1 mA maxim
u
m) (*3)
*
3.At rated current range of 50 nA to 0.1 mA when the test voltage setting exceeds -1020
V
on TOS9213AS.
Display
R = meas
u
red ins
u
lation resistance
Acc
u
racy
[In the h
u
midity range of 20 % to 70 % R.H (no condensation),
w
ith no dist
u
r
b
ance s
u
ch as
s
w
inging of the test lead
w
ire]i = meas
u
red c
u
rrent
Hold f
u
nction
The meas
u
red c
u
rrent at the end of the test is held d
u
ring the PASS period.
Selection of LO
W
/GUARD for
the G
N
D (*4)
*
4. When the GND is set to GUARD, current measurement is disabled if the part of the DUT connected to the LOW terminal
is grounded, which poses extreme danger. Never ground the DUT. In ordinary operation, set the GND to LOW
Selection permitted for c
u
rrent meas
u
rement
b
et
w
een the mode for the G
N
D
point connected to the LO
W
terminal, and the mode
u
sing g
u
ard.
LO
W
Connects the G
N
D point to the LO
W
terminal. Meas
u
res the c
u
rrent flo
w
ing to
the LO
W
terminal (chassis) (for normal operation).
GUARD
Sets the G
N
D point as g
u
ard. Meas
u
res the c
u
rrent flo
w
ing to the LO
W
terminal,
bu
t does not meas
u
re the c
u
rrent flo
w
ing to the chassis (for high-sensiti
v
ity,
high-acc
u
racy meas
u
rements).
R < 10.0 M
Ω
10.0 M
Ω
≤
R <
100.0 M
Ω
100.0 M
Ω
≤
R <
1.00 G
Ω
1.00 G
Ω
≤
R
≤
9.99 G
Ω
.
M
Ω
.
M
Ω
M
Ω
.
G
Ω
50 nA
≤
i
≤
100 nA 100 nA < i
≤
200 nA 200 nA < i
≤
1
μ
A
1
μ
A < i
≤
1 mA
± (20 % of reading)
± (10 % of reading)
± (5 % of reading) ± (2 % of reading)
