Fluke 1653B User Manual

1652C/1653B/1654B
Calibration Manual
32
Earth Resistance (1653B and 1654B Only)
To verify the UUT accuracy for measuring earth resistance, complete the following tests:
1. Turn the UUT to the R
E
Earth function.
2. Connect the UUT to the 5320A LO Ω Output terminals as shown in Figure 10.
3. On the 5320A, press the  function.
4. Press the 5320A MODE softkey and then select “Resistance 4-Wire” using the cursor
keys and Select softkey.
5. Using the 5320A numeric keypad, enter the resistance values in Table 9.
6. Put the 5320A in .
7. Press the UUT  and compare the reading to the display limits in Table 9.
Table 9. Earth Resistance Test
Display Reading
Step
UUT
Function
5320A
Res. Value
Spec.
Lo Limit Hi Limit
1 2 Ω 2 % + 5 1.5 2.5
2
R
E
Earth
1800 Ω 3.5 % + 10 1737 1863
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
UUT
PE
(L2/Green)
L
(L1/Red)
N
(L3/Blue)
gad006.eps
Figure 10. Earth Resistance Tests

Fluke 1653B Specifications

General

Insulation Test Voltage	50 V, 100 V, 250 V, 500 V, 1000 V
Loop and Line Resistance	0.01 Ω to 1999 Ω
Loop/Line Resistance	0.01 Ω to 1999 Ω
Frequency	45 Hz to 65 Hz
Resistance Measurement Range	0.01 Ω to 1999 Ω
Loop Impedance Measurement Range	0.01 Ω to 1999 Ω
Power Supply	6 x 1.5 V AA batteries
AC Voltage Range	500 V
DC Voltage Range	500 V
Insulation Resistance Range	0.01 MΩ to 1000 MΩ
Prospective Earth Fault Current (PEFC)	0 A to 20 kA
Prospective Short Circuit Current (PSC)	0 A to 20 kA
RCD Trip Time	300 ms
RCD Trip Current	10 mA to 1000 mA
Display	Digital
Safety Category	CAT III 500 V, CAT IV 300 V
RCD Trip Time Measurement Range	10 ms to 2000 ms
Dimensions	10 cm x 25 cm x 12.5 cm
Safety Standards	EN61557