User`s Manual - Test Equipment Depot
Contents
1. PAP wN Press to TEST key again to end the 0 adjustment process Test Connection Diagram 1 382252 Meter Green Test Lead Yellow Test Lead Red Test Lead Existing Ground P1 Auxiliary Earth Bar C1 Auxiliary Earth Bar b gt OP eG I Test Preparation and Setup 1 Connect the test leads to the meter 1 as follows e Green lead 2 to the E terminal e Yellow lead 3 to the P terminal e Red lead 4 to the C terminal 2 Drive the Auxiliary Earth Bars P1 6 amp C1 7 into the ground Align the bars equidistant to the existing Earth ground connection and in a straight line as shown in the diagram above If the auxiliary bars are placed in close proximity to the ground stake measurement inaccuracies will result 3 Connect the clamp ends of the test leads to the Earth bars and existing ground connection as shown above e Green lead 2 to the existing ground 5 e Yellow lead 3 to Earth Bar P1 6 e Red lead 4 to the Earth Bar C1 7 4 Model 382252 Ver 1 1 08 09 Earth Voltage Test 1 Set the function on the selector s switch to the EARTH VOLATAGE position 2 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 3 Press to TEST key to end the test Note the LCD reading Earth Resistance Test 1 Set the meter2. Code NEC Underwriters Laboratories UL National Fire Protection Association NFPA American National Standards Institute ANSI Occupational Safety Health Administration OSHA Telecommunications Industry Standard TIA 2 Model 382252 Ver 1 1 08 09 Meter Description 1 Digital Display See Display Description below 2 HOLD key Freezes measurement value on display 3 0 ADJ control Adjusts Zero value on display 4 Backlight key Turns on Backlight 5 TEST key Enables Earth Resistance and Earth Voltage Tests 6 Function Selector switch Selects desired range and function Top View 1 VOQ C Input 2 P Input 3 COM E Input 1 2 Display Description 3 i T l est status Icon 1 2 2 Battery Charge indicator 3 Voltage Unit indicator A KIr ae 9 Laces ZZ HOLD 4 Audible Signal Icon 8 a a a y 3 5 Q kQ Units Indicators 7 Li Di E 2 s ILII 6 Measurement Value aa a Vas 7 AC DC Voltage Indicators 6 8 Low Battery Icon 9 HOLD Icon 3 Model 382252 Ver 1 1 08 09 Operation 0 Adjustment 1 Connect the test leads to the meter as follows a Green lead to the E terminal b Yellow lead to the P terminal c Red lead to the C terminal Set the function selector switch to the desired measurement range Short the 3 test leads together Press the TEST key Use the 0 Adjust knob to adjust the displayed reading to 0
3. 2009 Extech Instruments Corporation a FLIR company All rights reserved including the right of reproduction in whole or in part in any form 8 Model 382252 Ver 1 1 08 09
4. Test Equipment 99 Washington Street Depot Melrose MA 02176 User s Manual Phone 781 665 1400 EXTECH 1 800 517 8431 Toll Free 1 800 517 8431 INSTRUMENTS PAL Visit us at www TestequipmentDepot com A FLIR COMPANY Earth Ground Resistance Tester Kit Model 382252 Earth Resistance Tester 382252 T OO oO 2 0 J DE C3 J GE OIO i EXTECH Introduction Congratulations on your purchase of the Extech 382252 Earth Ground Resistance Tester Kit This device can measure Earth Ground Resistance in 3 ranges Earth Voltage and Resistance up to 200kQ and AC and DC voltage This device was designed to meet EN61010 1 safety standards Careful care and 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 Do not use meter outdoors when precipitation is likely Installation Category III Pollution degree 2 Altitude 2000 meters max Ambient conditions 32 to 104 F 0 to 40 C RH 80 max Observe the following international safety warning symbols Safety Symbols Caution Refer to this manual before using this meter A Dangerous Voltages O Meter is protected throughout by double or reinforced insulation Organizations that provide rules and guidelines for proper grounding The National Electrical
5. low 33 10m Green 16 5m 1 displayed as most significant digit Six 1 5V AA batteries included LCD displays icon After approximately 15minutes of use EN 61010 1 category III 24 70z 700g with batteries 7 9 x 3 62 x 2 200 x 92 x 50 mm Multimeter Test leads 2 Earth Ground test leads 3 auxiliary earth bars 2 six AA batteries and carrying case 32 F to 104 F 0 C to 40 C with lt 80 RH 14 F to 140 F 10 C to 60 C with lt 70 RH 6 Model 382252 Ver 1 1 08 09 Measurement Specifications poe o 010 2 reading 10 digits 2009 loro 10 Resistance 2 reading 3 digits 20009 10 Earth Voltage 0 to 200VAC Frequency 40 to 0 1V 3 reading 3digits 500Hz 0 to 200kQ 0 1kQ 1 reading 2 digits Resistance Overload Protection 250 Vrms AC Voltage loto7sov to 750V 1 2 reading 10 digits 40 Hz to 400Hz Overload Protection 750 Vrms a Impedance 10MQ loto1000v to 1000V 0 8 reading 3 digits DC Voltage Overload Protection 1000 Vrms Input Impedance 10MQ 7 Model 382252 Ver 1 1 08 09 Warranty EXTECH INSTRUMENTS CORPORATION A FLIR COMPANY warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment a six month limited warranty applies to sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Departme
6. nt at 781 890 7440 ext 210 for authorization or visit our website www extech com for contact information A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Calibration and Repair Services Extech offers repair and calibration services for the products we sell Extech also provides NIST certification for most products Call the Customer Service Department for information on calibration services available for this product Extech recommends that annual calibrations be performed to verify meter performance and accuracy oa fN Test Equipment 99 Washington Street Depot Melrose MA 02176 Phone 781 665 1400 1 800 517 8431 Toll Free 1 800 517 8431 a an a ans Copyright
7. onnector and the black test lead to the COM connector Set the function selector switch to the 1000V DC position 3 Connect the test probes to the circuit under test Note the displayed Voltage value 5 Model 382252 Ver 1 1 08 09 Maintenance Battery Replacement When the low battery icon 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 tilt stand from the rear of the meter 3 Remove the 4 battery compartment screws with a Phillips head screwdriver 4 Remove the battery compartment cover and replace the six 1 5V AA batteries 5 Affix compartment cover and tighten screw 6 Reattach the tilt stand Cleaning and Storage E 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 Specifications General Specifications Measurements Display Sampling Time Test lead length Over range indication Power supply Low battery indication Auto Power Off Safety Weight Dimensions Supplied accessories Operating Conditions Storage Conditions Earth Ground Resistance in 3 ranges Earth Voltage AC Voltage to 750V and DC Voltage to 1000V Large LCD with dual display 2 5 times per second Red lead 50 15m Yel
8. s function switch to the desired resistance range 2 Press the TEST button The f icon will flash and the audible signal will sound 3 Note the displayed reading 4 If high resistance is detected note the value and take appropriate steps to correct the ground connection if necessary Press to TEST key to end the test Readings of 1 Q are typical when the test leads are not connected to the meter HOLD Function The Hold function freezes the latest measurement reading on the LCD 1 Press the HOLD key to freeze the reading on the LCD 2 Press the HOLD key again to exit the HOLD function 3 The HOLD function does not retain measurement data if the meter is turned off Backlight 1 Press the key to turn on the backlight 2 The backlight will turn off after approximately 15 seconds 200k Resistance Measurement 1 Connect the red test lead to the VO connector and the black test lead to the COM connector 2 Set the function selector switch to the 200kQ position 3 Connect the test probes to the circuit or component under test 4 Note the displayed Resistance value AC Voltage Measurement 1 Connect the red test lead to the VO connector and the black test lead to the COM connector 2 Set the function selector switch to the 750V AC position 3 Connect the test probes to the circuit under test 4 Note the displayed Voltage value DC Voltage Measurement 1 Connect the red test lead to the VO c
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