Prokit's Industries MT-1132 User Manual

MT-1132

3-1/2 Digital Multimeter

User’s Manual

1st Edition, 2012

©2012 Copyright by Prokit’s Industries Co., Ltd.

SAFETY INFORMATION

This multimeter has been designed according to IEC 1010
concerning electronic measuring instruments with an overvoltage
category (CAT III) and pollution 2. Follow all safety and operating
instructions to ensure that the meter is used safely and kept in
good operating condition. Full compliance with safety standards
can be guaranteed only with test leads supplied. If necessary,
they must be replaced with the type specified in this manual.

SAFETY SYMBOLS

Important safety information, refer to the operating manual.

Dangerous voltage may be present.
Earth ground

Double insulation (Protection class II).

Fuse must be replaced with rating specified in the manual.

MAINTENANCE

 Before opening the case, always disconnect test leads from all

energized circuits.

 For continue protection against fire; replace fuse only with the

specified voltage and current ratings: F10A/250V (Quick
Acting)

 Never use the meter unless the back cover is in place and

fastened completely

 Do not use abrasives or solvents on the meter. To clean it

using a damp cloth and mild detergent only.

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DURING USE

 Never exceed the protection limit values indicated in

specifications for each range of measurement.

 When the meter is linked to measurement circuit, do not touch

unused terminals.

 Never use the meter to measure voltages that might exceed

500V above earth ground in category III installations.

 When the value scale to be measured is unknown, set the

range selector at the highest position.

 Before rotating the function / range selector to change

functions, disconnect test leads from the circuit under test.

 When carrying out measurements on TV or switching power

circuits always remember that there may be high amplitude
voltages pulses at test points, which can damage the meter.

 Always careful when working with voltages above 60V DC or

30V AC rms. Keep fingers behind the probe barriers while
measuring.

 Before attempting to insert transistors for testing, always be

sure that test leads have been disconnected from any
measurement circuits.

 Components should not be connected to the hFE socket when

making voltage measurements with test leads.

 Never perform resistance measurements on live circuits.

GENERAL DESCRIPTION

The meter is a handheld 3 1/2 digital multimeter for measuring
DC and AC voltage, DC current, Resistance, Diode, Transistor
and Continuity Test with battery operated.

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FRONT PANEL DESCRIPTION

Display

1. 3 1/2 digit, 7 segment, 15mm high LCD.

2. Backlight button

3. Function/range selector
Rotate this selector to select function and desired range

4. Data hold button
Press this button, the display will keep the last reading and
"

" symbol will appear on the LCD until pushing it again.

5. "10A" jack

6. “COM" jack

7. Voltage, resistance, current (except 10A) measurements,
Continuity check and Diode test.

8. Power on/off button

9. LED test socket

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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 80%.

GENERAL

Maximum voltage between : CAT III 600V
Terminals and earth ground
Fuse protection : F 10A/250V
Power : 1.5V, AAx2
Display : LCD, 1999 counts, updates 2-3/sec.
Measuring method : Dual-slope integration A/D converter
Over range indication : Only figure "1" on the display
Polarity indication : "-" displayed for negative polarity
Operating environment : 0 to 40ºC
Storage temperature : -10ºC to 50ºC
Low battery indication : "
Size : 147mm x 78mm x 41mm
Weight : Approx. 183g

DC VOLTAGE

Range Resolution Accuracy
200mV 100uV ±(0.5% of rdg + 2 digits)
2V 1mV ±(0.5% of rdg + 2 digits)
20V 10mV ±(0.5% of rdg + 2 digits)
200V 100mV ±(0.5% of rdg + 2 digits)
500V 1V ±(0.8% of rdg + 5 digits)
Overload Protection: 250V rms. For 200mV range and 500V DC
or rms. AC for other ranges.

" appears on the display

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DC CURRENT

Range Resolution Accuracy
200uA 0.1uA ±(1.0% of rdg + 5 digits)
2mA 1uA ±(1.0% of rdg + 5 digits)
20mA 10uA ±(1.0% of rdg + 5 digits)
200mA 100uA ±(1.0% of rdg + 5 digits)
10A 10mA ±(2.5% of rdg + 5 digits)

Overload Protection: 0.2A/250V restorable fuse.

10A/250V fuse

AC VOLTAGE

Range Resolution Accuracy
200V 100mV ±(1.2% of rdg+10digits)

500V 1V ±(1.2% of rdg+10 digits)
Overload Protection: 500V DC or rms. AC for all ranges.
Frequency range: 40Hz to 400Hz. Response: Average
responding, calibrated in rms. of a sine wave.

DIODE & CONTINUITY

Range Description

If continuity exists (about less than 50Ω), built-in
buzzer will sound
Show the approx. forward voltage drop of the diode

Overload Protection: 250V DC or rms. AC.

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