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ATK-5307 Digital Ground Tester


Measures grounding connection resistance within 0.01Ω… 4kΩ; Ground potential measurement with 0.1V resolution; Data hold, MAX / MIN function; Auto power off function (in 3 minutes); Measurement time: 2.5 times per sec; Wide range and high precision; All ranges are selected with one switcher; Overload protection system; 3 3/4 digit LCD, max. 3999 LCD; Dimensions: 7.5(L) x 5.5(W) x 3.03(H)in / 190(L) x 140(W) x 77(H)mm; Weight: 28.2 oz / 800 g.

AKTAKOM ATK-5307 Digital ground tester is designed to measure resistance of different objects not charged with electricity.

Features:

  • Measures grounding connection resistance within 0.01Ω… 4kΩ
  • Ground potential measurement with 0.1V resolution
  • Data hold, MAX / MIN function.
  • Auto power off function (in 3 minutes).
  • Measurement time: 2.5 times per sec.
  • Wide range and high precision
  • All ranges are selected with one switcher
  • Overload protection system
  • Solid plastic housing

Specifications:

Measuring Range and Accuracy ( at 23 o C and 45-75%RH )

Function Measuring range Accuracy Overload Protection
Earth Voltage 0 ~ 399.9V (50Hz, 60Hz) +/- (1%rdg+4dgts) 400Vrms / 1 minute
Earth Resistance 0 ~ 39.99Ω +/- (2%rdg+0.2Ω) 250Vrms / 10 seconds
0 ~ 399.9Ω +/- (2%rdg+3dgts)
0 ~ 3999Ω

Current Consumption ( typical Value with battery voltage of 12V )

Range ON
40 W / 400 W /4000 W 42mA
Earth V 22mA

  • Display: 3 3/4 digit LCD, max. 3999.
  • Timer (Auto power off): in about 3 minutes.
  • Over range indication: OL
  • Operating temperature : 32°F to 104°F / 0°C to 40°C
  • Humidity: below 80% RH
  • Storage temperature: 14°F to 140°F / -10°C to 60°C
  • Dimensions: 7.5(L) x 5.5(W) x 3.03(H)in / 190(L) x 140(W) x 77(H)mm
  • Weight: 28.2 oz / 800 g.

Accessories:

  • Test leads
  • User manual

Grounding resistance measurement

  1. Make sure E, P and C leads are correctly connected.
  2. Set the rage switcher to the required resistance scale, press “TEST” button to switch on AKTAKOM ATK-5307 Digital ground tester and see the grounding resistance measurement results on the display.
  3. If you see “HΩ” symbol on the display that means the leads has got disconnected or the grounding resistance of the additional electrode is too high. Therefore check C1 and E1 connection or reduce the grounding resistance to the right level accordingly to make the grounding resistance measurement results correct. It can be done changing the auxiliary grounding electrode position or by moistening the ground with water.

Ground potential measurement

  1. Make sure E and P leads are correctly connected.
  2. Set the rage switcher to “EARTH V”, press “TEST” button to switch on AKTAKOM ATK-5307 Digital ground tester and see the grounding resistance measurement results on the display.


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