Battery And Fuse Replacement - Electraline DT830B Manual Del Usuario

DIODE MEASUREMENT
1. Red lead to «V Ω mA» jack. Black lead to «COM» jack
2. RANGE switch to
3. Connect the red test lead to the anode of the diode to be measured and black test lead to cathode.
4. The forward voltage drop in mV will be displayed. If the diode is reversed, figure «1» will be shown.
1. RANGE switch to the hFE position.
2. Determine whether the transistor is NPN or PNP type and locate the Emitter, Base and Collecter leads.
Insert the leads into the proper holes of the hFE Socket on the front panel.
3. The meter will display the approximate hFE value at the condition of base current 10μA and Vce 2.8V.

BATTERY AND FUSE REPLACEMENT

Fuse rarely need replacement and blow almost always as a result of operator error.
If appear on display, it indicate that battery should be replaced.
To replace battery & Fuse (500mA/250V and 10A/250V) remove the 2 screws in the bottom of the
case. Simply remove the old, and replace with a new one. Be careful to observe polarity.
CAUTION
Before attempting to open the case of the instrument, be sure to disconnect test leads from
any energized circuits to avoid shock hazard.
position
7