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User Guide

Model 380363

Insulation Tester / Megohmmeter

Introduction

Congratulations on your purchase of Extech’s Insulation Tester/Megohmmeter. The Model
380363 provides three test ranges plus continuity and AC/DC voltage measurement. Manual
datalogging stores up to 9 data sets. This professional meter, with proper care, will provide
years of reliable service.

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Содержание 380363

Страница 1: ...tions on your purchase of Extech s Insulation Tester Megohmmeter The Model 380363 provides three test ranges plus continuity and AC DC voltage measurement Manual datalogging stores up to 9 data sets This professional meter with proper care will provide years of reliable service ...

Страница 2: ...this meter Dangerous Voltages Meter is protected throughout by double or reinforced insulation Specifications General specifications Display 3 3 4 digit 4000 count LCD Sampling rate 1 reading per second Test ranges Resistance 4MΩ 40MΩ 400MΩ 4000MΩ 10GΩ Test Voltages 250V 500V 1000V AC DC Voltage range 999V Resistance range 9999Ω Lo Resistance range 40Ω Over range indicator OL displayed when measur...

Страница 3: ...nt 1mA Circuit Protection Test inhibited if input 30V AC or DC AC VOLTAGE 40Hz 500Hz Range Res Accuracy Input impedance Overload Protection 999VAC 1V 2 2d 9MΩ 1000Vrms DC VOLTAGE Range Res Accuracy Input impedance Overload Protection 999VDC 1V 1 2d 9MΩ 1000Vrms RESISTANCE CONTINUITY Range Res Accuracy Max open circuit Volt Overload Protect Resistance 999 9Ω 0 1Ω 1 3d 3V 1000Vrms Continuity 100Ω 80...

Страница 4: ...gether 3 Resistance should read less than 0 5Ω and the audio tone should sound 4 With the leads not touching the display should read OL indicating over range 5 Readings displayed other than the readings described above are evidence of a problem and the test leads must be replaced before using the meter Failure to do so could result in damage to equipment and electrical shock If replacing the test ...

Страница 5: ...r the LOCK mode The LOCK icon will appear on the display 2 Press the TEST key to start the test A beeper will sound every 2 seconds to indicate that the meter is in Lock mode 3 Press LOCK or TEST to disable the Lock function and end the test Notes on IR Megohmeter testing 1 The maximum measurement range for the 380363 is 10GΩ Frequently insulation resistance will exceed this value and the meter wi...

Страница 6: ...t is less than approx 100Ω 80Ω the audible tone will sound LOΩ Low Resistance Measurement 1 Set the Rotary switch to the LoΩ position 2 Connect the red test lead to the VΩ terminal and the black lead to the COM terminal 3 Touch the test leads together and press the key to zero the display 4 Connect the probes to the ciruit under test If there is a voltage present it will be displayed A repetitive ...

Страница 7: ...ired function Analog Bar Graph The analog bar graph displays resistance on a logarithmic scale and voltage on a linear scale The value always tracks the main display Maintenance Battery Replacement When the low battery symbol appears BT on the LCD the six 1 5V AA batteries must be replaced 1 Turn the meter off and remove the test leads 2 Remove the four 4 Phillips head screws on the rear of the me...

Страница 8: ...ains switch If the mains switch is opened and the motor also has a motor starter then the starter must be held in the ON position With the mains switch opened the measured resistance will include the resistance of the motor wire and all other components between the motor and the main switch If a weakness is indicated the motor and other components should be checked individually If the motor is dis...

Страница 9: ... also applies to DC Generators Testing Cables 1 Disconnect the cable under test from the line 2 Disconnect the opposite end of the cable to avoid errors as a result of leakage from other equipment 3 Check each conductor to ground and or lead sheath by connecting one meter lead to ground and or lead sheath and the other meter lead to each of the conductors in turn 4 Check insulation resistance betw...

Страница 10: ...he instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization or visit our website at www extech com click on Contact Extech and go to Service Department to request an RA number A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges fre...

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