Extech MG325 Specifications

MG325 CAT IV Insulation Tester/

True RMS MultiMeter

Combines a 200GΩ/1000V high range
Insulation Tester with a full-featured
True RMS MultiMeter in a single,
compact instrument. CAT IV safety
rating ensures the highest level of
protection.

Checking voltage on a lathe Insulation test on pump motor

Features

• Measure Insulation Resistance to 200GΩ

• 5 Test Voltage ranges

• Polarization Index (PI) and Dielectric Absorption

Ratio measurements (DAR)

• Low Resistance measurement with Zero function

• Programmable Timer feature sets the duration of test

• Comparison Mode allows user to set the Pass/Fail

values for insulation measurements

• Step Voltage (10% steps at 50% to 120% of range)

• Auto-discharge of voltage test signal

• View the Frequency (45Hz ~ 400Hz) of

AC Voltage measurements

• Lock Power On Function for hands-free operation

• Manually store/recall up to 99 readings

• Backlit 10,000 count display with analog bargraph

• LED high voltage and LCD overload indication

• Data Hold to freeze displayed reading

• Auto Power Off and Low battery indication

• Complete with remote probe, test leads, alligator clip,

6 x AA batteries, and soft case

Specifications

Insulation Resistance

Insulation Test Voltages 50V, 100V, 250V, 500V, 1000V 0 to 20%

AC/DC Voltage 600V 0.01V AC: ±(1.5%+5d)/ DC: ±(2%+3d)

Leakage Current 2000µA 10µA ±(10%+3d)

Resistance 10MΩ 0.01kΩ ±(3%+3d)

Low Resistance 100Ω 0.01Ω ±(1.5%+5d)

Capacitance 500µF 0.1nF ±(5%+5d)

Continuity (audible) Yes

Dimensions/ Weight 8.9 x 4.1 x 2.3" (225 x 103 x 59mm)/ 1.5lbs (0.7kg)

Range Resolution Basic Accuracy

50MΩ, 100MΩ, 200MΩ,500MΩ, 2000MΩ
1GΩ, 10GΩ, 20GΩ, 50GΩ, 100GΩ, 200GΩ

0.001MΩ ±(3%+3d)

PRODUCT DATASHEETPRODUCT DATASHEET

Ordering

MG325 .............. CAT IV Insulation Tester/True RMS MultiMeter with Remote Test Probe

Specifications subject to change without notice. Copyright © 2015 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form.
Rev. 6/6/16

UPC Code: 793950383353

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