Velleman MMPR1 Uživatelský manuál stáhnout pdf (Strana 7)

VTSET24/VTSET26

12.02.2010 ©Velleman nv

6. Transistor hFE Measurements

1) Connect the black test lead (-) to the "COM" jack and the red test lead

(+) to the "mA" jack.

2) Select the hFE-range with the Range switch.

3) Determine whether the transistor is of the NPN- or PNP-type and locate

the emitter, the base and the collector. Insert the leads into the proper

holes in the included transistor socket.

4) Connect the black test lead (-) to the "COM" terminal and the red test

lead (+) to the other terminal of the transistor socket.

5) The display will show the approximate hFE-value at the moment of

testing. Base current 10µA, Vce 2.8V.

Specifications

Maximum accuracy is guaranteed for a one-year period after calibration.

Ideal circumstances require a temperature of 23°C (± 5%) and a max.

relative humidity of 75%.

1. General

Max. voltage between

terminal and earth

500VDC or VAC rms (sine wave)

Display 3 ½-digit LCD, 2 - 3 readings per sec.

Fuse Protection 200mA range : F 0.5A/250V (resettable)

10A range : F 10A/250V

Power Supply 2x AAA (LR03C, not incl.)

Ranging Method Manual

Polarity Indication " - " displayed

Overrange Indication " 1 " displayed automatically

Dimensions 126 x 70 x 27mm

2. DC Voltage

Range Resolution Accuracy

200mV 100µV ±0.5% of rdg ±2 digits

2000mV 1mV

±0.8% of rdg ±2 digits

20V 10mV

200V 100mV

500V 1V ±1.0% of rdg ±2 digits

Overload protection: 220Vrms AC for the 200mV range and 500VDC or

500Vrms AC for other ranges.

3. AC Voltage

Range Resolution Accuracy

200V 100mV ±1.5% of rdg ±10 digits

500V 1V

Overload protection: 500VDC or 500Vrms for all ranges

Frequency range: 45Hz - 450Hz

1 2 3 4 5 6 7 8 9 10 11 12 ... 53 54

Komentáře k této Příručce

Žádné komentáře

Velleman MMPR1 Uživatelský manuál Strana 7

Komentáře k této Příručce