AEMC Model 3620

Testeur de Résistance de Terre (Analogique, 3 Pointes)

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Model 3620 [Catalog No. 2114.90] Ground Resistance Tester (Analog, 3-Point)
Characteristics:
  • Fall-of-Potential method for 2- and 3-Point ground resistance tests
  • Direct reading on large analog display 0.5 to 1000Ω and easy 25Ω readings
  • Large 3.1″ (77mm), easy-to-read scale for accurate readings
  • Built-in battery check
  • Three color-coded terminals
  • Large press-to-measure buttons
  • Portable and compact
  • Extremely simple to operate: connect – press – read
  • Designed to reject high levels of noise and interference
Application:
  • The Ground Resistance Tester Model 3620 is the ideal instrument for electrical contractors, power utilities, REAs, telephone and CATV technicians, and inspectors who must check ground to determine compliance with NEC, OSHA and other specifications. Applications include:
    • Measuring earth resistance of the type of single rod or small ground grids often found in remote telecommunication switching sites
    • Measuring ground electrode resistance of lightning protection equipment
    • Measuring the earth electrode resistance of equipment in recreational areas
    • Testing electrode resistance of ground rods and grids at new construction sites, when utility supplied power has not been supplied
    • Testing earth electrode resistance of grounded towers at cellular phone remote installations
Product Description:
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space The Analog Ground Resistance Tester Model 3620 performs ground resistance measurement from 0.5 to 1000Ω with speed and accuracy. The Model 3620 features three-terminal operation for fall-of-potential earth/ground resistance, and may also be used for 2-Point tests.The large 3.1″ logarithmic scale is easy to read, with a separate marking for 25Ω. A large Press-to-Measure button allows for easy measurements. A manual zero adjust is provided for accurate readings. Color-coded terminals are easy-to-use banana plug inputs and binding posts.
Ground Kits:
Model 3620 Kit – 150 ft. [Catalog No. 2135.10]Ground Resistance Tester Model 3620 Kit – 150 ft.Test Kit for 3-Point testing includes instrument, two 150 ft color-coded leads on spools (red and blue), one 30 ft lead (green), two 14.5″ T-shaped auxiliary ground electrodes, one set of five spaded lugs, 100 ft tape measurer and carrying bag.Catalog #2135.10
Model 3620 Kit – 300 ft. [Catalog No. 2135.11]Ground Resistance Tester Model 3620 Kit – 300 ft.Test Kit for 4-Point testing includes instrument, two 300 ft color-coded leads on spools (red and blue), two 100 ft color-coded leads (green and black), four 14.5″ T-shaped auxiliary ground electrodes, one set of five spaded lugs, 100 ft tape measurer and carrying bag.Catalog #2135.11
Model 3620 Kit – 500 ft. [Catalog No. 2135.12]Ground Resistance Tester Model 3620 Kit – 500 ft.Test Kit for 4-Point testing includes instrument, two 500 ft color-coded leads on spools (red and blue), two 100 ft color-coded leads (green and black), one 30 ft lead (green), four 14.5″ T-shaped auxiliary ground electrodes, one set of five spaded lugs, 100 ft tape measurer and carrying bag.Catalog #2135.12
Accessories (Optional)
25Ω Calibration Checker Cat. #2130.59
Tape Measure (100 ft) Cat. #2130.60
Ground Tester Video/Workbook set Cat. #2130.64
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Specifications:
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ELECTRICAL Model 3620
Ground Resistance
Range 0.5 to 1000Ω
Resolution 10mΩ
Test Current 10mA
Resistance Measurement Frequency 128Hz square wave
Accuracy ±5% of Reading + 0.1% of galvanometer scale length
Auxiliary Electrode Influence Rz 3000 times the reading up to 50kΩ Ry 50kΩ
Withstanding Voltage 250Vrms with spikes of 3000VAC or 1000VDC
Power Source Eight 1.5V “AA” Alkaline batteries
Battery Life 1680 15-second tests (approximately)
Fuse Protection High breaking capacity 0.1A, >250V, 0.25 x 1.25″
General Specifications
Display Analog Pivot movement
Connection Color-coded terminals accept spade lugs with minimum gap of 6mm or standard 4mm banana jacks
Scale 3.1″ (77mm) white scale with black pointer;one scale per range
Operating Temperature 14° to 131°F (-10° to 55°C)
Storage Temperature -40° to 158°F (-40° to 70°C), 0 to 90% RH with batteries removed
Temperature Influence 5% per 10°C
Relative Humidity 20 to 90% maximum
Dimensions 8.7 x 5.4 x 5.9″ (220 x 136 x 150mm)
Weight 2 lbs (1.3kg)
Case Heavy-duty, ABS
Colors Case safety yellow; Front panel gray
SAFETY
Mechanical Shock IEC 68-2-27
Vibration Test IEC 68-2-6
Drop Test IEC 68-2-32
Environmental O-ring sealed against dust and water to IP50
Safety Rating EN 61010-1, Cat. III, Pollution Degree 2, 24V
Agency Approval Emission: EN 50081-1
Immunity: EN 50082-1
Double Insulation Yes
CE Mark Yes
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