Fluke 5320A User Manual

5320A
Users Manual
7-4
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 1653
L (L1/Red)
Fluke 5320A
PE
(L2/Green)
ehq030.eps
Figure 7-1. Resistance Calibration UUT Connections
Calibrating Earth Resistance Testers
Earth Resistance calibration is performed on earth resistance (also referred to as ground
resistance) testers and multifunction installation testers with earth resistance testing
capability. Most earth testers are 3-pole or 4-pole testers. To calibrate these testers, the
low ohms function of the Calibrator must be set to 4-Wire mode. The example below
shows how to setup calibration for a 3-pole earth resistance tester.
To perform an Earth Resistance calibration:
1. Using Figure 7-2 for a reference, connect the UUT to the Calibrator’s LOΩ HI and
LO terminals as well as the LOΩ Sense HI terminal.
2. Press L.
3. If Open or Short is displayed, press the Mode softkey. Then, using the cursor keys
or rotary knob, highlight Resistance 4-wire and select it by pressing the Select
softkey or pushing in on the rotary knob.
4. In the Output display, verify 4-Wire is displayed. If not, use the instructions in
Chapter 4 to change to 4-wire resistance.
5. If needed, select the Earth Resistance function on the UUT.
6. Press O.
The resistance is applied to the output terminals. Compare the reading on the UUT
with the standard value on the Calibrator’s display.

Fluke 5320A Specifications

General

Brand	Fluke
Model	5320A
Category	Test Equipment
Language	English