7
8
4. DC /AC Current (
):<400mA
Medium
4
DDM450
4
7. Resistance:<40M
Ω
DDM450
1.
Turn rotary switch to A position.
2.
Press FUNC to select DC or AC current.
3.
Connect leads in series to circuit.
4.
Read current measurement on the display.
3. DC /AC Current (large):<10A
4
DDM450
1.
Turn rotary switch to mA position.
2.
Press FUNC to select DC or AC current.
3.
Connect leads in series to circuit.
4.
Read current measurement on the display.
5. DC /AC Current (Small):<4000µA
4
DDM450
1.
Turn rotary switch to
µ
A position.
2.
Press FUNC to select DC or AC current.
3.
Connect leads in series to circuit.
4.
Read current measurement on the display.
6.1 Continuity:
6.2 Diode Test:
4
4
DDM450
DDM450
1.
Turn rotary switch to multifunction position
2.
Press FUNC to switch to continuity mode
3.
Connect leads across circuit.
4.
If measured resistance is less than 50 , the buzzer will sound
Ω
1.
Turn rotary switch to multifunction position.
2.
Diode mode is default mode.
3.
Connect INPUT lead to anode (+) and COM lead to cathode (-).
4.
Read measured forward-biased voltage drop.
1.
Turn rotary switch to resistance position.
2.
Connect leads across circuit.
3.
Read resistance measurement on the display.
