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Mastech MY70 User Manual

Mastech MY70
14 pages
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MY70/74/74B
OP ER ATI ON M AN UA L
DIG I TAL M ULTIM ETER
CAT III
600V
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Mastech MY70 Specifications

General IconGeneral
TypeDigital Multimeter
Continuity TestYes
Diode TestYes
Continuity BuzzerYes
Data HoldYes
Auto Power OffYes
Frequency Range10Hz - 10MHz
Temperature Range1000°C
Battery9V

Summary

General Instructions

Safety Information

General safety guidelines and warnings for using the multimeter.

Safety Instructions

Lists standard safety procedures to prevent electric shock and misuse.

Safe Working Habits

Details safe practices to avoid errors, damage, and injury during operation.

Safety Symbols

Explains symbols used on the meter and in the manual for important safety information.

Safe Maintenance Habits

Outlines precautions for safe maintenance, including battery replacement.

Input Protection Measures

Specifies input limits and protection for various measurement functions to prevent damage.

Meter Appearance Description

Meter Appearance

Identifies and labels the main components of the multimeter's front panel.

LCD Display

Details the symbols and indicators shown on the multimeter's LCD screen.

Input Sockets

Describes the function and connection points of the multimeter's input sockets.

Operating Guidance

General Operation

Explains basic operation modes like reading maintenance and battery saving.

Reading Maintenance Mode

Describes how to freeze the displayed reading and exit the mode.

Battery Saving Energy Function

Informs about the automatic power-off feature to conserve battery life.

Measuring AC and DC Voltage

Details how to measure AC and DC voltage safely and accurately.

Measuring Resistance

Explains the procedure for measuring resistance, including precautions.

Testing Diode

Guides on testing diodes outside a circuit, including polarity and voltage drop.

Audible Continuity Testing

Explains how to perform continuity tests using the buzzer function.

Measuring Capacitance (MY74, MY74B)

Provides instructions for measuring capacitance with the meter.

Transistor Measuring

Details the process for measuring transistor hFE approximation.

Measuring Frequency (MY74, MY74B)

Explains how to measure the frequency of a circuit.

Measuring Temperature (MY74, MY74B)

Guides on measuring temperature using a thermocouple.

Measuring Current

Provides steps and warnings for measuring DC and AC current.

Technical Indicators

Comprehensive Indicators

Lists general operating conditions, environmental specs, and fuse protection.

Accuracy Indicators

Details the accuracy specifications for various measurement functions.

DC Voltage Accuracy

Shows accuracy and input specs for DC voltage measurements.

AC Voltage Accuracy

Shows accuracy and input specs for AC voltage measurements.

Frequency Accuracy (MY74, MY74B)

Specifies accuracy and input/overload protection for frequency measurement.

Resistance Accuracy

Lists accuracy and overload protection for resistance measurements.

Diode Test Environment

Details test environment and overload protection for diode testing.

Audible Continuity

Describes the test environment for audible continuity testing.

Transistor Measurement

Details the test environment for transistor hFE measurement.

Capacitance Accuracy (MY74, MY74B)

Shows measuring range, resolution, accuracy, and overload protection.

Temperature Accuracy (MY74, MY74B)

Lists measuring range, resolution, accuracy, and overload protection.

DC Current Specifications

Details measurement ranges, accuracy, and overload protection for DC current.

AC Current Specifications

Details measurement ranges, accuracy, and overload protection for AC current.

Meter Maintenance

General Maintenance

Provides basic cleaning instructions for the multimeter shell and sockets.

Replace Battery and Fuse

Guides on safely replacing the battery and fuses.

Replacing Test Leads

Advises on replacing damaged test leads with compliant ones.

Cleaning and Decontamination

Recommends cleaning methods using a soft cloth and avoiding liquid solvents.

Accessories

Lists the included accessories with the multimeter.

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