Digital multimeter M832. Electric scheme, description, characteristics. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Measuring technology
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Description
The M832 Digital Multimeter measures AC/DC voltage, AC/DC current, resistance, and bipolar transistor gain (h21). The built-in 50 Hz generator will be useful when testing radio devices. Also, using the M832 multimeter, you can ring semiconductor diodes. The quality of the connection of conductors or soldering can be checked using sound continuity. The measurement results are displayed on a well-read digital 31/2-digit LCD display. The multimeter is powered by one 9V "Krona" battery. The M832 multimeter comes with a set of probes and instructions in Russian.
Features
Number of measurements per second: 2
DC voltage U= 0,1mV - 1000V
AC voltage U~ 0,1V - 750V
DC current I= 2mA - 10A
AC frequency range current 40 - 400Hz
Resistance R 0,1 ohm - 2 megohm
Input resistance R 1 MΩ
Built-in square wave generator 50 Hz
Transistor gain h21 up to 1000
"ringing" mode < 1 kOhm
Diode test: yes
Power supply 9V / type NEDA 1604, Krona VTS /
Dimensions, mm 65? 125? 28
Weight, grams (with battery) 180
Service: Low battery indication
Overload indication "1"
Average price: 9-11$
Below is the M832 digital multimeter circuit
(click to enlarge)
Publication: cxem.net
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