Mastech MS8239D User Manual

MS8239D
DIGITAL ENGINE ANALYZER
OPERATOR'S MANUAL
HOLD MAX
FUNC
V
4
CYL
6
CYL
8
CYL
8
CYL
6
CYL
4
CYL
DWELL
TACH
x10RPM
600V CAT III
COM
RPM
DWELL
10A
FUSED
MAX
600V
AUTO
MAX. DATA
MS8239D
ENGINE ANALYZER

Mastech MS8239D Specifications

General

Model	MS8239D
Category	Digital Multimeter
DC Current Range	400µA/4000µA/40mA/400mA/10A
AC Current Range	400µA/4000µA/40mA/400mA/10A
Resistance Range	400Ω/4kΩ/40kΩ/400kΩ/4MΩ/40MΩ
Diode Test	Yes
Continuity	Yes
Display	LCD
DC Voltage Range	400mV/4V/40V/400V/600V
AC Voltage Range	4V/40V/400V/600V
Capacitance Range	40nF/400nF/4µF/40µF/100µF
Frequency Range	10Hz/100Hz/1kHz/10kHz/100kHz/1MHz/10MHz
Temperature Range	-20°C - 1000°C
Duty Cycle	0.1% to 99.9%

Summary

Safety Information

Preliminary Safety Checks

General safety rules and checks before using the meter, including checking for damage and test lead condition.

Safe Usage Guidelines

Important precautions and rules to follow while operating the meter to prevent damage and ensure user safety.

Device Description

Component Identification

Identification and description of the meter's parts, controls, and input jacks.

Controls and Connections

Explanation of the function of switches, buttons, and input jacks on the device.

Technical Specifications

General Specifications

General technical data including auto range, overrange protection, operating altitude, and display features.

Electrical Specifications

Detailed electrical parameters for DC/AC voltage, current, resistance, continuity, and engine dwell measurements.

Operating Instructions

Powering On and Off

Instructions for turning the meter on and off using the ON/OFF button.

Data and Value Holding

How to use the DATA-H and MAX.H buttons to hold current or maximum measured values.

Function and Range Selection

How to transform functions (DC/AC, Temp) and select measurement ranges.

Backlight Usage

Instructions for activating and deactivating the LCD backlight and its power consumption impact.

Measurement Preparation

Steps for preparing the meter and circuit for measurement, including battery check and connection.

DC Voltage Measurement

Procedure for measuring DC voltage, including warnings and connection details.

AC Voltage Measurement

Procedure for measuring AC voltage, including warnings and connection details.

DC Current Measurement

Procedure for measuring DC current, emphasizing circuit connection and range selection.

AC Current Measurement

Procedure for measuring AC current, emphasizing circuit connection and range selection.

Resistance Measurement

Procedure for measuring resistance, including safety precautions for power-off circuits.

Engine Dwell Measurement

Procedure for measuring engine dwell angle, detailing connection to the engine's ignition system.

Engine Revolution Measurement

Procedure for measuring engine revolutions (RPM), detailing connection to the ignition system.

Diode Testing

Procedure for testing diodes, including connection and expected readings.

Continuity Testing

Procedure for continuity testing, including safety warnings and buzzer indication.

Maintenance and Accessories

Battery Replacement

Instructions and warnings for replacing the meter's batteries safely.

Probe Replacement

Guidance on when and how to replace test probes if they are damaged.

Included Accessories

List of items included with the digital engine analyzer, such as test leads and batteries.