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Extech Instruments MultiTec MT310 User Manual

Extech Instruments MultiTec MT310
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Operation
Measurement Preparations and Considerations
1. ALWAYS push the power key to the OFF position when the meter is not in use. This meter has Auto Power OFF
that automatically shuts the meter OFF if 30 minutes elapse without activity. To recover from Auto OFF, press any
key. (Alternately, press the POWER key, wait three seconds, and press the POWER key again).
2. If "OL" appears on the display during a measurement, the measurement exceeds the range selected. Change to a
higher range.
AC or DC Voltage Measurements
1. Set the function switch to the "V" position
2. Press the "DC/AC" key until "DC or AC" appears on the LCD.
3. Insert the black test lead into the negative COM jack and the red test lead into the positive V jack.
4. Touch the test probe tips to the circuit under test.
5. Read the voltage on the display
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Extech Instruments MultiTec MT310 Specifications

General IconGeneral
TypeDigital Multimeter
DisplayLCD
Display Count4000
Frequency Range10Hz to 10MHz
Battery9V
Measurement FunctionsAC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Temperature
Voltage Range (AC)600V
Voltage Range (DC)600V
Current Range (AC)10A
Current Range (DC)10A
Resistance Range400Ω to 40MΩ
Capacitance Range40nF, 400nF, 4µF, 40µF, 100µF
Temperature Range-40°C to 1000°C

Summary

Warranty and Services

Warranty Information

Details the manufacturer's warranty policy for the instrument.

Repair and Calibration Services

Outlines available repair and calibration services for Extech products.

Introduction and Safety

Introduction to the Digital Multimeter

Congratulates the user and introduces the MultiTec™ Series digital multimeters.

International Safety Symbols

Explains safety symbols like danger, caution, and double insulation.

Product Specifications

DC and AC Voltage Specifications

Lists ranges and accuracy for DC and AC voltage measurements.

DC and AC Current Specifications

Lists ranges and accuracy for DC and AC current measurements.

Resistance, Frequency, and Capacitance Specifications

Details specifications for resistance, frequency, and capacitance measurements.

Temperature Measurement Specifications

Provides specifications for temperature measurements for specific models.

Input Limit Specifications

Defines the maximum input limits for various measurement functions.

General Specifications

Covers general operating parameters like duty cycle, diode test, and power supply.

Meter Description

Meter Components Description

Details the numbered components of the MT330 meter, including display, keys, and jacks.

Display Indicators and Symbols

Explains the meaning of various indicators and symbols shown on the meter's LCD.

Operation

Measurement Preparations and Considerations

General notes on meter usage, auto power off, and handling over-range indications.

AC or DC Voltage Measurements

Step-by-step guide for measuring AC and DC voltages.

AC or DC Current Measurements

Instructions for measuring AC and DC current, including safety cautions.

Resistance and Continuity Measurements

Procedures for performing resistance and continuity tests.

Capacitance Measurements

Steps for measuring capacitance using the multimeter.

Diode Test

How to conduct a diode test and interpret the results.

Frequency / Duty Cycle Measurements

Guide for measuring frequency and duty cycle.

Temperature Measurements

Instructions for temperature measurement using MT320 and MT330 models.

Auto / Manual Range Selection

Explains how to switch between auto and manual ranging modes.

Data Hold Function

How to use the data hold feature to freeze displayed readings.

Relative Mode

Using the relative measurement feature to compare readings to a reference value.

LCD Backlight (MT330 only)

Instructions for operating the LCD backlight on the MT330 model.

Maintenance

Cleaning the Meter

Guidance on how to clean the multimeter case safely.

Replacing the Batteries

Steps for replacing the meter's battery when low battery indicator appears.

Replacing the Fuses

Instructions for safely replacing internal fuses in the multimeter.

PC Interface

PC Interface Installation

Steps for installing the PC interface software.

PC Interface Operation

Guide on connecting and using the meter with PC software.

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