Transistor Hfe Test - Velleman DVM830 Manual Del Usuario

3.6. Transistor hFE Test

1. Set the FUNCTION switch to the hFE range.
2. Determine whether the transistor is NPN or PNP and locate the Emitter, Base and Collector
leads. Insert the leads into the proper holes in the socket on the front panel.
3. The display will read the approximate hFE value.
4. Specifications
Accuracy is specified for a period of one year after calibration and at 18°C to 28°C (64°F to 82°F)
with relative humidity to 75%.
4.1. General
Max. voltage between terminals and earth
Display
Fuse protection
Power supply
Ranging method
Polarity indication
Over-range indication
Operating temperature
Storage temperature
Dimensions
Weight
4.2. DC Voltage
Range
200mV
2V
20V
200V
600V
Maximum input voltage: 600VDC or peak AC
4.3. AC Voltage
Range
200V
600V
Max. input voltage: 600V
Frequency range: 40Hz to 450Hz
DVM830
600VDC or VAC RMS (sinus)
3 ½ digit LCD
range 200mA: F 0.2A/250V
range 10A: none
9V battery
manual
"-" displayed
"1" displayed automatically
0°C to 35 °C
-15°C to 50 °C
126 x 70 x 24mm
170g
Resolution
100µ V
1mV
10mV
100mV
1V
Resolution
100mV
1V
6
Accuracy
± 0.5% of rdg ± 2 digits
Accuracy
± 1.2% of rdg ± 5 digits
VELLEMAN