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User's Manual
Earth Ground Resistance Tester
Model 382152
Introduction
Congratulations on your purchase of the Extech Earth Ground Resistance Tester. This
device can measure resistance (in 3 ranges) and AC voltage to 200V. 2mA constant
current test signal permits earth resistance tests without tripping current breakers in the
circuit under test. Single, momentary tests or automatic 3-minute tests can be selected.
This device was designed to meet IEC-1010 (EN 61010) safety standards.
Earth Ground Resistance Testers are useful for:
• Estimating ground resistance of a proposed substation or transmission tower.
• Computing inductive coupling between neighboring power and communication
circuits.
• Designing cathode protection systems.
• Geological surveys.
Careful use of this meter will provide years of reliable service.
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Summary of Contents for Extech Instruments 382152
- Page 1 User's Manual Earth Ground Resistance Tester Model 382152 Introduction Congratulations on your purchase of the Extech Earth Ground Resistance Tester. This device can measure resistance (in 3 ranges) and AC voltage to 200V. 2mA constant current test signal permits earth resistance tests without tripping current breakers in the circuit under test.
- Page 2 Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited w arranty applies on sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 for authorization.
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Page 3: Specifications
Test status LED Data Hold switch Automatic 3-min. test OFF button LCD Display C1, P1 Aux bar test lead terminals Function select switch Resistance range select switch Push-button momentary test 10. Automatic 3-min. test ON button Model 382152 Ver. 1.6 April 2001... - Page 4 6. Confirm that the voltage measurement is less than 10V AC; otherwise accurate Earth resistance measurements cannot be made. If voltage is present (higher than 10V AC), the source of the voltage must be found and corrected before testing can continue. Model 382152 Ver. 1.6 April 2001...
- Page 5 2. The reading that was on the display when the switch was set is now held on the LCD. 3. The Data Hold function does not retain measurement data if the meter is turned off. 4. Select OFF from the Data Hold selector switch to return meter to normal operation. Model 382152 Ver. 1.6 April 2001...
- Page 6 Tech Support Hotlines 781-890-7440 ext. 200 extech@extech.com www.extech.com Copyright © 2001 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form. Model 382152 Ver. 1.6 April 2001...
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