Extech 382252 Earth Ground Resistance Tester

382252

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Extech 382252 Earth Ground Resistance Tester Kit. Includes all hardware necessary to measure earth ground in 3 ranges from 20 to 2000Ohm

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$336.00 tax excl.

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The Extech 382252 Earth Ground Resistance Tester Kit can measure Earth Ground Resistance (in 3 ranges), Earth Voltage and Resistance (up to 200kΩ), 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.

Features:

  • Large dual display with backlight
  • Test Hold function for easy operation
  • Automatic Zero adjustment
  • AC/DC Voltage, Resistance, and Continuity
  • Auto Power off
  • Overrange and low battery indication
  • Complete with test leads, 2 auxiliary earth bars, carrying case, protective rubber holster and six 1.5V AA batteries

Package Contents

 


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

 

 

 

 

 

 

 

 

 

 

 Test Setup

Test Connection Diagram

  1. 382252 Meter
  2. Green Test Lead
  3. Yellow Test Lead
  4. Red Test Lead
  5. Existing Ground
  6. P1 Auxiliary Earth Bar
  7. C1 Auxiliary Earth Bar

 

 

Test Preparation and Setup

  1. Connect the test leads to the meter (1) as follows:
    • Green lead (2) to the 'E' terminal
    • Yellow lead (3) to the 'P' terminal
    • Red lead (4) to the 'C' terminal
  2. Drive the Auxiliary Earth Bars P1 (6) & 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:
    • Green lead (2) to the existing ground (5)
    • Yellow lead (3) to Earth Bar P1 (6)
    • Red lead (4) to the Earth Bar C1 (7)

 

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 meter's function switch to the desired resistance range.
  2. Press the TEST button. . The “ “ 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.
  5. Press to TEST key to end the test.
  6. Readings of “1”…Ω 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.

 

 

200kΩ Resistance Measurement

  1. Connect the red test lead to the VΩ connector and the black test lead to the COM connector.
  2. Set the function selector switch to the 200kΩ 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 VΩ 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 VΩ connector and the black test lead to the COM connector.
  2. Set the function selector switch to the 1000V DC position.
  3. Connect the test probes to the circuit under test.
  4. Note the displayed Voltage value.

Specifications

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