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150X Series
Calibration Manual
DANGER
sHi
!
Hi
1500Vpk
I+
Source Voltage Accuracy Test, Open Circuit
22
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UUT
1507
INSULATION TESTER
DANGER
HIGH VOLTAGE
sHi
sLo
15Vpk
max
!
!
Hi
Lo
1500Vpk
max
I+
I-
15Vpk
max
Calibrator
HIGH VOLTAGE
sLo
15Vpk
max
!
Lo
max
I-
15Vpk
max
1507
INSULATION TESTER
80K-6 HV Divider
Figure 7. Source Voltage Accuracy Test, "R" Nominal
The open circuit source voltage accuracy can be determined, by calculation, using the
Meter Voltage Reading Error % previously noted. Complete the following test to verify
the actual open circuit source voltage.
1. Set the UUT rotary function switch to an insulation test function.
2. Press T and record the UUT display reading for each step in
Table 6.
Calibrator
A
B
C
D
E
F
CLR
7
8
9
G H
I
J
K L
_
/
4
5
6
E
M N
O P
Q R
1
2
3
S
T
U
V
W X
0
Ñ
Y
Z
A
B
C
D
E
F
CLR
7
8
9
V
OUTPUT
_
G H
I
J
K L
/
A
4
5
6
E
OFF
Ω
M N
O P
Q R
1
2
3
Hz
S
T
U
V
W X
0
Ñ
Aux
Y
Z
ON
Mode
Test DMM
V
OUTPUT
A
OFF
Ω
Hz
Aux
ON
Mode
>1000 mV
Test DMM
mV
ecz12f.eps
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