Fluke 1653B User Manual

Electrical Installation Tester
Basic Maintenance
17
door screws (3) one-quarter turn counterclockwise.
4. Press the release latch and slide the battery holder out of the Tester.
5. Replace the batteries and the battery door.
Note
All stored data will be lost if the batteries are not replaced within
approximately one minute (1653B and 1654B only).
6. Secure the door by turning the screws one-quarter turn clockwise.
apx028f.eps
Figure 1. Battery Replacement
How to Test and Replace the Fuse
The Tester performs a fuse test each time it turns on. If leads are plugged into the L and
PE input jacks, the fuse test is skipped. If a blown fuse is detected, testing is disabled,
FUSE appears on the primary display, and the Tester issues a warning beep.
You can also perform a manual check of the fuse.
To check the fuse manually:
1. Turn the rotary switch to either . or /.
2. Short the leads.
3. Press and hold .
If the fuse is bad, FUSE will appear on the display to indicate the Tester is damaged and
needs repair. Contact Fluke Service for repair (see How to Contact Fluke).

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