User's Manual Earth Ground Resistance Tester Model 382152
Contents
1. EXTECH User s Manual INSTRUMENTS Earth Ground Resistance Tester Model 382152 OFF Hop ACV 9 i PUSE ON CAT Ill OFF OTIMERO ON P EXTECH 382152 INSTRUMENTS DIGITAL EARTH RESISTANCE TESTER 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 e Estimating ground resistance of a proposed substation or transmission tower e Computing inductive coupling between neighboring power and communication circuits e Designing cathode protection systems e Geological surveys Careful use of this meter will provide years of reliable service Safety Please read the following safety information carefully before attempting to operate the meter and use the meter only as specified in this manual Environmental safety information e Donotuse meter outdoors when precipitation is likely e Installation Category III e Pollution degree 2 e Altitude 2000 meters max e Ambie2. ed accessories Test leads 3 auxiliary earth bars 2 six AA batteries and carrying case Range Specifications Measurement Range Resolution Accuracy Earth Ground Resistance 20 200 20000 0 010 0 10 10 296 rdg 2d or 0 19 2mA test current 820Hz whichever is greater Earth Voltage 0 to 200VAC 0 1V 1 rdg 2d Frequency 40 to 500Hz 6 382152 EU EN v2 2 07 13 Maintenance Battery Replacement When the low battery icon B appears on the LCD the meter s batteries must be changed 1 Remove power and disconnect the test leads from the meter 2 Remove the rear battery compartment screw with a Phillips head screwdriver 3 Remove the battery compartment cover and replace the six 1 5V AA batteries 4 Affix compartment cover and tighten screw You as the end user are legally bound EU Battery ordinance to return all used batteries disposal in the household garbage is prohibited You can hand over your used batteries accumulators at collection points in your community or wherever batteries accumulators are sold Disposal Follow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle Cleaning and Storage Periodically wipe the meter s case with a damp cloth and mild detergent do not use abrasives or solvents If the meter is not to be used for a period longer than 60 days remove the batteries and store them separately Copyright 2013 FLIR Syste
3. est 1 Set the meter s function switch to the ohms position and set the range switch to the desired resistance range 2 Press the PUSH ON button to perform a single momentary test Press the PUSH ON and TIMER ON buttons simultaneously to begin a 3 minute test 3 minute tests automatically shut down after 3 minutes Press the Timer OFF button to end an automatic test at any time 4 Note the displayed reading The front panel test status LED will light if the test is operating correctly If the LED does not light check for problems such as open circuits or overload conditions 5 If high resistance is detected note the value and take appropriate steps to correct the ground connection if necessary 6 Readings 1 Q are typical when the test leads are not connected to the meter Data Hold Data Hold freezes the latest measurement reading on the LCD 1 2 3 4 Select ON from the Data Hold selector switch to turn Data Hold ON The reading that was on the display when the switch was set is now held on the LCD The Data Hold function does not retain measurement data if the meter is turned off Select OFF from the Data Hold selector switch to return meter to normal operation 5 382152 EU EN v2 2 07 13 Specifications Display 3 1 2 digit 1999 count LCD with LED test status indicator Test lead length Red lead 15m 50 Yellow 10m 33 Green 5m 16 Power supply Six 1 5V AA batteries included Wei Suppli
4. ms Inc All rights reserved including the right of reproduction in whole or in part in any form www extech com 7 382152 EU EN v2 2 07 13
5. nt conditions 32 to 104 F 0 to 40 C RH 80 max e Observe the following international safety warning symbols Safety Symbols Caution Refer to this manual before using this meter A Dangerous Voltages I Meter is protected throughout by double or reinforced insulation Organizations that provide rules and guidelines for proper grounding e The National Electrical Code NEC e Underwriters Laboratories UL e National Fire Protection Association NFPA e American National Standards Institute ANSI e Occupational Safety Health Administration OSHA e Telecommunications Industry Standard TIA 2 382152 EU EN v2 2 07 13 Meter Description 1 O ON Oo de co Ww a e Earth ground test lead terminal 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 Automatic 3 min test ON button O moo ACY e a CAT M DIGITAL EARTH RESISTANCE TESTER EXTECH 382152 INSTRUMENTS 382152 EU EN v2 2 07 13 Operation Test Connection Diagram Ground surface 347 33 ft 5 10m Existing ground connection equidistant 17 to 33 ft 5 to 10m apart Test Preparation and Setup 1 Connect the test leads to
6. the meter as follows e Green lead to the E terminal Yellow lead to the P terminal e Red lead to the C terminal 2 Drive the Auxiliary Earth Bars C1 amp P1 included into the ground Align the bars equidistant to the existing Earth ground connection and in a straight line as shown in the diagram above 3 Ensure that the bars are between 17 and 33 ft 5 and 10 meters apart If the auxiliary bars are placed in close proximity to the ground stake measurement inaccuracies will result 4 Connect the clamp ends of the test leads to the Earth bars and existing ground connection spike as shown above Earth Voltage Test 1 Setthe meter s function switch to the ACV position 2 Press the PUSH ON button to perform a single momentary test 3 Press the PUSH ON and TIMER ON buttons simultaneously to begin a 3 minute test The 3 minute test automatically shuts down after 3 minutes Press the Timer OFF button to end an automatic test at any time 4 The front panel test status LED will light if the test is operating correctly If the LED does not light check for problems such as open circuits or overload conditions Note the LCD reading 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 4 382152 EU EN v2 2 07 13 Earth Resistance T
Download Pdf Manuals
Related Search