Velleman DCM97K User manual - page 7
DCM97K v2 GB
6
3.5. Diode and Audible Continuity Test
Range Description Test
Condition
Display reads approximate
forward voltage of diode
Forward DC current
approx. 1.5mA.
Reversed DC voltage
approx. 3V
Built-in buzzer sounds if
resistance < approx. 30
Ω
Open-circuit voltage
approx. 1.3V
Overload Protection : 250VDC or 250Vrms AC
3.6. Auto Power Off
The meter will automatically deactivate when not used for approx. 10 minutes.
Push the "RAN." key to reactivate the meter.
4. OPERATION
4.1. Voltage measurements
1. Connect the red test probe to the "V-
Ω
" input terminal and the black test lead to
the "COM" terminal.
2. Place the function switch in the "
" position.
3. Push the blue "FUN."-key until the VAC or VDC function is reached.
4. Connect the test probe and the lead to the source to be tested.
WARNING
Do not attempt to measure voltages that might exceed 600VDC or 600VAC in
order to avoid electroshocks or damage to the meter. Do not apply more than
600VDC or 600Vrms AC between the "COM" input terminal and the earth.
NOTE
The display may become unstable, especially when working in the 300mV-range,
even if you do not connect the test probe with the circuit. Short the "V-
Ω
" terminal
and the "COM" terminal and make sure the zero is displayed if you suspect that a
particular reading is erroneous.