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マルチメーター Major tech MT832のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Major tech MT832 12 ページ。 Analogue multimeter

4.8. Iceo (LEAKAGE CURRENT) TEST

1. Insert the test leads into COM (Black lead) and "+" socket (Red lead).

2. Set the function switch to X10 (15mA) for small size transistor, or to X1

(150mA) for big size transistor.

3. Short the test leads and turn on adjusting knob to set the pointer to

the zero position.

4. Making Measurement:

A. For NPN transistor, the "N" terminal of the tester is connected to the

COLLECTOR (C) of the transistor, the "P" terminal is connected to the

EMITTER (E) of the transistor.

B. For PNP transistor, reverse the connection of NPN transistor connect.

5. For the lceo range, if the pointer is not within the LEAK zone or the

pointer moves up near to the full scale, it means that the transistor is

not good. Otherwise, it is a good transistor.

4.9. hFE (DC AMPLIFICATION) TEST

1. Insert the test leads into COM (Black lead) and "+" socket (Red lead).

2. Set the function switch to X10.

3. Short the test leads and turn on 0Ω adjusting knob to set the pointer to

zero position.

4. Making Measurement:

A. For NPN FE transistor.

ii. Plug the hFE connector into "N" terminal and connect its red clip

to the collector and the black one to the base of the transistor.

B. For the PNP transistor,

i. Connect the "N" terminal of the tester to the emitter of the

transistor.

ii. Plug the hFE connector into the "P" terminal and connect the clips

in the same way as NPN transistor connection.

5. Read the hFE scale. The value of the reading is lc/lb, which is the DC

amplication degree of the transistor.

1. Take out the plastic protection cover first

2. Remove Philips head screw and lift off the rear housing of the meter.

3. Replace old battery with fresh 9V and AA type battery.

4. Replace the rear cover and secure the screw.

WARNING: Disconnect the test leads from any source of voltage

before removing the back cover or the battery/fuse door. Do not operate

your meter until the rear housing is in place and fastened

securely.