Velleman DVM830, Руководство пользователя

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DVM830
VELLEMAN 6
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 600VDC or VAC RMS (sinus)
Display 3 ½ digit LCD
Fuse protection range 200mA: F 0.2A/250V
range 10A: none
Power supply 9V battery
Ranging method manual
Polarity indication
“ ” displayed
Over-range indication
“ ” displayed automatically
Operating temperature 0°C to 35 °C
Storage temperature -15°C to 50 °C
Dimensions 126 x 70 x 24mm
Weight 170g
4.2. DC Voltage
Range Resolution Accuracy
200mV 100µ V
2V 1mV
20V 10mV
200V 100mV
600V 1V
±
0.5% of rdg
±
2 digits
Maximum input voltage: 600VDC or peak AC
4.3. AC Voltage
Range Resolution Accuracy
200V 100mV
600V 1V
±
1.2% of rdg
±
5 digits
Max. input voltage: 600V
Frequency range: 40Hz to 450Hz