AEMC - Advanced Test Equipment Rentals
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1. CLAMP ON GROUND RESISTANCE TESTER MODELS 3710 3730 Measure ground rod and small grid resistance gt Use in multi grounded systems without disconnecting the ground under test gt Measure resistance and continuity of grounding loops around pads and buildings gt Measure leakage current flowing to ground or circulating in ground loops gt Conduct quick field checks gt Conduct field surveys and retrieve and analyze readings at a later time gt UL CSA listed and CE Mark O AEMC Ground Resistance Tester Ifeyel isse waa elryele mom mole Measure ground rod and small grid resistance in any environ ment without the use of auxiliary ground rods Clamp on ground resistance testers are used in multi grounded systems without disconnecting the ground under test The Models 3710 and 3730 simply clamp around the ground conductor or rod and measure the resistance to ground By performing measurements on intact ground systems the user also verifies the quality of the ground ing connections and bonds Resistance and continuity of grounding loops around pads and buildings may also be mea sured Both models include a current measurement function The probe s high sensitivity enables measurement of leakage current flowing to ground or circulating in ground loops down to 1mA and neutral currents to 30Arms This feature provides addi tional information which is becoming vital as distribution ground networks carry h2. 9 25 x 3 94 x 2 17 Jaw Window Diameter 1 25 82 mm U S Patent No 362 639 235 mm x 100 mm x 55 mm Jaw Opening 1 38 35 mm NSN 6625 01 377 8030 Weight 2 2 lbs 1 kg Operating Temperature Case Material Lexan 920A UL94V2 14 F to 131 F 10 to 55 C maeme SALA LODA E Calibration Check Loop included Carrying Case included ORDERING INFORMATION CATALOG NO Clamp on Ground Resistance Tester Model 3710 Cat 1221 01 includes hard carrying case 9V Alkaline battery 25 calibration check loop and user manual Clamp on Ground Resistance Tester Model 3730 Cat 1221 02 includes hard carrying case 9V Alkaline battery 25Q calibration check loop and user manual Call the AEMC Instruments Technical Assistance Hotline for immediate consultation with an applications engineer 800 343 1391 Chauvin Arnoux Inc d b a AEMC Instruments 99 Chauncy St Boston MA 02111 USA 800 343 1391 617 451 0227 Fax 617 423 2952 Visit our website at www aemc com 950 BR 3710 30 05 99
3. Current Overload 50 0 to 100 0 0 5Q 2 0 0 5Q OL displayed above 30Arms Measurement Range Range Resolution Accuracy r t Power Supply 9V Alkaline battery aa P ee z 2i Ae IEC 6LF22 or NEDA 1604A 200 to 4002 6 0 5Q Battery Life typical 8 hours or approx 400 to 6002 10 10 1 000 measurements of 30 seconds 600 to 1200Q n a SAFETY UL CSA GS Listed IEC 1010 2 032 Double Insulation Autoranging Tto SEUNA aioe remy Environmental IP30 IEC 359 Group III 1mA to 30 00 0 300A to 3 000A 2 5 2mA Vibration Test IEC 68 2 6 ame 3 00A to 30 00A 2 5 20mA Shock Test IEC 68 2 27 i D T 1m IEC 68 2 32 Reference conditions 23 C 3K 50 RH 10 battery at 8V 0 2V external magnetic field rop Test 1m cas lt 40 A m external electrical field lt 1 V m conductor centered loop resistance noninductive Accuracy of Dielectric Test 2500VAc reading Working Voltage Jaw Cover Material Lexan 500R with Operating Humidity 0 to 90 RH IEC1010 150V Cat Ill Pollution Degree 2 S 14 F to 104F 10 C to 40 C IEC1010 300V Cat III Pollution Degree 1 10 fiberglass charge UL94V0 i 75 RH 131 F 55 C Max Overload A or Q Function LCD Cover Material Storage Temperature 100A continuous 200A lt 5s 50 60Hz Lexan 920A UL94V1 40 F to 158 40 C to 70 C MECHANICAL OT gies aie ai LCD 3 3 4 Digit 1 73 x 1 10 44 x 28 mm Dimensions
4. for accuracy and pre Ohms Range YES YES vents undesirable insertions Hold Function YES YES The ergonomic body design permits one handed opera Self Test Power Up YES YES tion The guard provides addi yes yes tional strength and prevents the hand from slipping or LCD Battery Life Indicator YES YES coming into contact with con LCD Noise Indicator YES YES ductors under test The LCD lens cover may be easily LCD Open Jaw Indicator YES YES replaced if scratched The LCD Closed Loop Indicator YES YES sealed push buttons directly E 9 access all test functions and are easily operated even with Alarm Function gloved hands TECHNICAL ASSISTANCE 800 343 1391 www aemc com Functions amp Features 3710 3730 On Off Power ON or power OFF Activates display self test at power up o p Resistance measurement Adjusts the alarm set point and the memory position when in programming mode A q Current measurement Adjusts the alarm set point and the memory position when in programming mode AL Model 3730 Activate deactivate the alarm function Accesses the value of the alarm setpoint when in programming mode MEM Model 3730 Activate the memory function or read the stored values in MR Memory Recall Clears the memory when in programming mode Specifications ELECTRICAL Resistance Measurement Frequency 1 689kHz Current Measurement Frequency A 47 to 800Hz 1 0 to 50 0 0 10 1 5 0 1Q
5. igher levels of noise and harmonics which affect power quality The Model 3730 offers an alarm function and a memory logging function In the alarm mode the probe will audi bly and visually indicate if the reading is beyond an input set point The user may also have the alarm initiated above or below the set point This alarm feature permits quick field checks where only pass or fail readings will suffice Features Simple and fast clamp on operation no leads no auxiliary rods or spacing requirements Direct reading of ground resistance from 10 to 12002 Direct reading of continuity and ground loop resistance Direct reading of ground leakage current from 1mA to 30Arms Jaw design with large 1 25 32 mm window accommodates up to 1000 MCM cables Auto off for power management Alarm function with adjustable set point and buzzer for quick field checks Memory function to store 99 field measure ments for later retrieval and analysis UL CSA and GS listed meets IEC 1010 2 032 and CE marked Alarm settings and stored memory information saved during shutdown US Patent No 362 639 TECHNICAL ASSISTANCE 800 343 1391 Product Construction The Models 3710 and 3730 bodies are built of Lexan or equivalent for rugged use The probe heads are encapsu lated in a double walled shell for extra strength and reinforced for enhanced field reliability Overall construction and mechanical design rati
6. ngs such as drop test shock and vibration weatherproofing Overview of Functions 3 000 count display Q Displayed when measuring resistance against water projections mA A_ Displayed when measuring current or dust meet or 130 Percentage of battery life remaining Flashing indicates low battery condition Indicates the auto off feature is inactive exceed IEC 1010 Cat Ill B HOLD HOLD pushbutton has been pressed enll NOISE C standards These products have also been designed to meet UL CSA and GS safety approvals and are CE marked Active beeper function Noise in the reading Probe jaws not closed properly aigg Alarm set points MEM Memory function active magg Memory Recall MR and register Resistance measured is below 1Q The probe head or jaw is a key component in the measurement and over all product performance The large jaw thickness permits use on tight ground conductors on poles and in manholes The 1 25 32 mm opening accommodates not only ground rods but larger ground conductors up to 1000 MCM typically found in telecommunication buildings or railroad applications The inner jaw is composed of two independent and individually shielded magnetic cores permitting measurement without noise interference or cross talk common to separate probe instruments Thorough mechanical design including small winglets ensures repetitive jaw align ment
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