Technical Specifications - Velleman DVM33 Manual De Usuario

• Diode Measurement
1) Place the rotary switch on
2) Avoid damages to the meter. When measuring a diode, cut off the power supply of the object to be measured
and make sure there is no charge in the capacitor.
3) When measuring the voltage drop of a diode, transistor or any other semiconductor, its silicon structure should
read positive and stay between 0.5V and 0.8V.
• Transistor hFE Measurement
1) Make sure the transistor is a PNP or NPN type.
2) Connect the transistor to be measured to the corresponding jacks.
3) The LCD displays the hFR reference value.
4) Measuring conditions: Ibo ≈ 10µ A, Vce ≈ 3V.
• Square Wave Output
1) Place the rotary switch on
2) To avoid damaging the meter, do not let the output terminal reach higher than 10V.
3) The frequency is 50Hz.
4) The output voltage range will be over 3V when it is loaded 1 Mohms.
5) Use the square wave output to repair audio equipment.

6. Technical Specifications

DC Voltage
Basic Accuracy
Accuracy for 1000V Range
Input Impedance
Max. Input
AC Voltage
Basic Accuracy
Input Impedance
Frequency Range
Max. Input
DC Current
Basic Accuracy
Basic Accuracy
Basic Accuracy
Overload Protection
Resistance
Basic Accuracy
Overload Protection
Square Wave Output
Simple Signal Source
Overload Protection
Overrange
Continuity Buzzer
Transistor Test
Diode Test
Low Battery Indication
Maximum Display
LCD Display Size
Ranging Mode
Data Hold
DVM33
.
.
200m/2/20/200/1000
± 0.5% + 2 digits
± 0.8% + 2 digits
10 Mohms
1000V
200/750V
± 1.2% + 10 digits
5 Mohms
40-400Hz
750V
2m/20m/200m/10A
± 1% for 20mA range
± 1.2% for 200mA range
± 2% for 10A range
fuse 300mA, 10A range non-fused
200/2k/20k/200k/2000k
± 0.8%
DC 230V or AC 230Vrms
50Hz
resistance output 100k
no
yes "1"
yes
yes
yes
yes
1999
25mm
manual
yes
- 3 - VELLEMAN