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Extech Instruments 380353, User Manual

The Extech Instruments 380353 is a versatile and reliable device that requires a comprehensive User Manual to fully maximize its features. Download the free manual from our website to easily access step-by-step instructions, ensuring you make the most of this exceptional product.

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User's Manual

High Voltage Megohmmeter

Analog Insulation Tester
plus AC Voltage and Continuity Tests

Model 380353

99 Washington Street
Melrose, MA 02176

Toll Free 1-800-517-8431

Visit us at www.T

estEquipmentDepot.com

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Summary of Contents for 380353

Page 1: ...er Analog Insulation Tester plus AC Voltage and Continuity Tests Model 380353 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com Back to the Extech 380353 Product Page ...

Page 2: ... and bus bars Accidental contact with conductor could result in electrical shock 3 Use caution when working near voltages above 60VDC or 30VACrms 4 After insulation tests capacitors must be discharged 5 Test leads including alligator clips must be in good working order clean and without broken or cracked insulation 6 When servicing use only specified replacement parts International Safety Symbols ...

Page 3: ...inuity Tests Operating conditions 32 to 104 o F 0 to 40 o C 80 RH Dimensions 6 7 x 6 5 x 3 6 170 x 165 x 92mm Weight 2 1 lbs 970g Standards Low Resistance Range Accuracy Overload Protect 0 to 50Ω 5 of reading 250V Open Circuit V approx 600mV Short circuit A approx 240mA AC Voltage Range Accuracy Line Frequency 600VAC 5 of full scale 40Hz to 1kHz Insulation Resistance Megohmmeter Voltage 10 Range A...

Page 4: ...function 6 Function select switch 7 Battery Fuse compartment on rear 8 Test lead EARTH input jack 9 Test lead LINE input jack 10 Test lead storage compartment Analog Scale Description 1 Black Megohmmeter Scale Multiply reading by 0 5 for 250V range 1 500V 2 1000V 2 Red AC Voltage Measurement Scale 0 to 600V 3 Green Low Resistance Scale 0 to 50Ω 1 2 3 1 2 3 4 5 6 7 8 9 10 ...

Page 5: ...Set the rotary switch to the low resistance position Ω Connect the leads to the meter and short the clip ends of the test leads and read the green resistance scale on the display Depress the TEST switch and the resistance should read between 0 and 0 5 Ω The display should read maximum range with the leads open not shorted If any readings are obtained other than the readings just described the test...

Page 6: ...er test is zero If the Live Circuit status LED lights when a test is initiated immediately abort the test and check that the circuit under test is not powered 1 Set the Function select switch to the Resistance Ω position 2 Connect the red test lead to the LINE input and the black lead to the EARTH input 3 Perform a zero adjustment using the zero adjust screw on the display as described above 4 Con...

Page 7: ...est leads 2 Set the function switch to the ohms position and press the TEST button 3 If the fuse is open blown the pointer will indicate an open circuit max resistance 4 To locate the fuse open the rear battery fuse compartment via the Phillips head screw located at the center of the meter case 5 Replace the fuse 250V 1A fast blow located in the battery fuse compartment just above and to the right...

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