Fluke 5320A - Calibrating Insulation Resistance Testers

Applications
Calibrating Insulation Resistance Testers 7
7-5
280V
RMS
MAX
280V
RMS
MAX
CAT I
1000V
CAT II
600V
RMS MAX
20V PK
30A
RMS
MAX
20V PK
LO
LO - SENSE
, HI ,
mA
V
1500V PK
MAX
50V PK
MAX
20V PK
20V PK
N
L
PE
L1 L2 L3HES
OUTPUT
Z
L
, Z
GND
,
RCD
HI
LO
HI
LO
METER
METER
5320A MULTIFUNCTION ELECTRICAL TESTER CALIBR
V
A
COM
INPUT
Fluke 5320A
Fluke 1653
PE
(L2/Green)
L
(L1/Red)
N
(L3/Blue)
ehq031.eps
Figure 7-2. Earth Resistance Calibration Connections
Calibrating Insulation Resistance Testers
The Calibrator’s high resistance source function is designed for calibrating insulation
resistance functions on megohm meters, installation testers, appliance testers and
electrical safety analyzers. The high resistance function can also be used for calibrating
ohmmeters in a specified resistance range. Figures 7-4 through 7-6 show the connections
required for three different UUTs for an insulation resistance calibration procedure.
280V
RMS
MAX
280V
RMS
MAX
CAT I
1000V
CAT II
600V
RMS MAX
20V PK
30A
RMS
MAX
20V PK
LO
LO - SENSE
, HI ,
mA
V
1500V PK
MAX
50V PK
MAX
20V PK
20V PK
N
L
PE
L1 L2 L3HES
OUTPUT
Z
L
, Z
GND
,
RCD
HI
LO
HI
LO
METER
METER
5320A MULTIFUNCTION ELECTRICAL TESTER CALIBR
V
A
COM
INPUT
Fluke 5320A
Fluke 1653
PE
(L2/Green)
L (L1/Red)
ehq049.eps
Figure 7-3. Calibrating Insulation Resistance of an Installation Tester