Fluke 12 User Manual

12 Multimeter
TESTING DIODES
11
TESTING DIODES
1. Insert the test leads in the jacks.
2. Put the slide-switch in the continuity/ohms position. The meter selects either the
continuity/diode (R G) or ohms (e) function.
If ohms is selected, press [g] to toggle to the continuity/diode function. To toggle
the beeper on or off in continuity/diode test, press [V]. R is displayed when the
beeper is enabled.
3. Touch probes to the diode (Figure 5A). A forward-voltage drop of about 0.6 V
(typical for a silicon diode) causes the meter to beep once.
4. Reverse probes (Figure 5B). If the diode is good, OL is displayed. If the diode is
shorted (Figure 5C), the beeper sounds continuously in at least one direction.
If the diode is open, OL is displayed in both directions.

Fluke 12 Specifications

General

Continuity Beeper	Yes
Diode Test	Yes
Safety Rating	CAT III 600 V
Operating Temperature	0 °C to 50 °C
Display Type	LCD
Voltage DC	600V
Voltage AC	600V
DC Current Range	10 A
AC Current Range	10 A
Resistance Range	40 MΩ
Battery Type	9V
Dimensions	169 mm x 84 mm x 44 mm