Fluke 1653B - Loop Z, Hi Current Accuracy

Electrical Installation Tester
Accuracy Tests
27
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
UUT
Decade “R” Box
L (L1/Red)
Fluke 5320A
PE
(L2/Green)
N
(L3/Blue)
Set to “LOOP Z1 NO TRIP” Function
gad004.eps
Figure 7. LOOP Z
I
NO TRIP Test
Loop Z
I
Hi Current
 Warning
To prevent possible electrical shock, fire, or personal injury, do
not touch the L or N input jacks while performing the following
tests. These input jacks have line voltage on them during the
test.
 Caution
Before performing the following test, remove the Decade R Box
used in Figure 7. Failure to do so will result in damage to the
decade resistors. Setting the function switch to the LOOP Z HI
CURRENT function, or selecting L-N test with <, will result in
damage to the Decade Resistor Box when  is performed.
Perform a LOOP Zero as follows:
1. Set the UUT rotary switch to LOOP Z
I
HI CURRENT function.
2. Using a shorting block, short the UUT L-PE-N input jacks together at the UUT.
3. Press and hold .
4. Read the UUT display. The display should read from 0.00 to 0.04 Ω.