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Mastech ms5908 User Manual

Mastech ms5908
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Ω
TEST
mA
VA
ms
Hz%
VA
ms
%
AC
L - N
L - E
N - E
Peak
Z - L
Z - N
Z - E
ASCC
12 A 15 A 20 A
HOLD
N
E
L
V Vd Z
RCD
GFCI
MS5908
Circuit Analyzer
Operation Manual
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Mastech ms5908 Specifications

General IconGeneral
BrandMastech
Modelms5908
CategoryTest Equipment
LanguageEnglish

Summary

General Instructions

Functions

Lists the various measurement capabilities of the circuit analyzer.

Safety Warnings

Front Panel Overview

Input and Display

Test input points and the main measurement display screen.

Control Buttons

Identifies power, test selection, hold, backlight, and navigation buttons.

Test Execution

The dedicated button for initiating tests.

Menu Operation

Voltage Measurement (V)

Real-time display of TRMS phase voltage, wiring status, and frequency.

Voltage Drop Measurement (Vd)

Displays voltage drop under load and phase voltage measurement results.

Measurement Functions

Impedance Measurement (Z)

Real-time display of line connection status and impedance test results.

RCD Testing

Displays RCD trigger current and trip time for residual current device testing.

GFCI Testing

Displays GFCI trigger current and trip time for ground fault circuit interrupter testing.

Other Operations

Backlight and Auto Power Off

Controls for display backlight and automatic shutdown features.

Data Hold Function

Feature to freeze and retain displayed measurement values.

Important Usage Warnings

Wiring Test

Voltage Measurement Details

Analyzer Limitations

Maximum Voltage Warning

Voltage Fault Troubleshooting

Phase Voltage Issues

Troubleshooting steps for phase voltage measurement problems.

Neutral Line Voltage Issues

Troubleshooting for voltage to earth of zero line issues.

Peak Voltage & Frequency Issues

Troubleshooting for peak voltage and frequency measurement anomalies.

Harmonic Interference

Methods to reduce harmonic interference issues.

Voltage Drop Analysis

Measurement Procedure

How to measure and interpret voltage drop using dummy loads.

Interpreting Drop Readings

Analyzing voltage drop percentages and identifying potential faults.

Voltage Drop Troubleshooting

Causes and Solutions

Troubleshooting causes and solutions for high voltage drop.

Cable Impedance Testing

Impedance Analysis

Analysis of live/zero line impedance and earth line impedance.

Testing Notes and Requirements

Notes on RCD trigger, load conditions, and earth connection for impedance tests.

Conductor Impedance Troubleshooting

Live/Zero Line Impedance

Troubleshooting for live/zero line conductor impedance issues.

Earth Line Impedance

Troubleshooting for earth line conductor impedance issues.

RCD Test Procedure

RCD Test Troubleshooting

Fault Analysis

Troubleshooting for RCD test results, including improper installation.

GFCI Test Procedure

GFCI Test Troubleshooting

Fault Analysis

Troubleshooting for GFCI test results, including improper installation.

General Technical Index

Maintenance

Battery and Cleaning

Instructions for battery installation, replacement, and housing cleaning.

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