Extech 382252 Earth Ground Resistance Tester Kit User Manual

1. Sarrera

The Extech 382252 is a comprehensive Earth Ground Resistance Tester Kit designed for accurate measurement of earth ground resistance. This kit provides three selectable ranges for earth ground resistance: 20 Ohms (Ω), 200 Ohms (Ω), and 2000 Ohms (Ω). Beyond earth ground testing, the device also functions as a multimeter, capable of measuring AC/DC Voltage, Resistance, and Continuity. It features automatic zero adjustment for ease of use. This manual provides detailed instructions for the safe and effective operation, maintenance, and troubleshooting of your Extech 382252.

2. Segurtasun informazioa

Abisua: Improper use of this meter can cause damage, shock, injury, or death. Read and understand all safety information and operating instructions before using this instrument. Always adhere to local and national safety codes.

• Ez gainditu funtzio bakar baterako sarrera-muga maximoak.
• Kontu handiz ibili zirkuitu elektriko biziekin lan egitean.
• Ensure the meter is in good working condition and free from damage before use.
• Erabili beti funtzio eta tarte zuzenak neurketetarako.
• Irakurketa zehatzak bermatzeko, aldatu bateriak bateria baxuaren adierazlea agertzen denean.
• Keep hands and fingers away from test probe tips when making measurements.
• Ez erabili neurgailua atmosfera lehergarrietan edo gas edo hauts sukoien aurrean.

3. Paketearen edukia

Egiaztatu elementu guztiak bertan daudela eta kalterik gabe daudela paketea desblokeatzean:

• Extech 382252 Earth Ground Resistance Tester
• Test Leads (set)
• Auxiliary Earth Bars (2 pieces)
• Eramateko zorroa
• Protective Rubber Holster
• 1.5 V-ko AA bateriak (6 unitate)

Image 1: The Extech 382252 Earth Ground Resistance Tester Kit, showing the main unit, test leads, two auxiliary earth bars, and the carrying case.

4. Produktuaren ezaugarriak

The Extech 382252 offers the following key features:

• Earth Ground Resistance measurement in three ranges: 20Ω, 200Ω, and 2000Ω.
• AC / DC boltage measurement capabilities.
• Resistance and Continuity testing functions.
• Automatic zero adjustment for accurate readings.
• Pantaila LCD handia eta irakurterraza.
• Data Hold function to freeze displayed readings.
• Atzeko argia argi gutxiko baldintzetan ikusgarritasun handiagoa lortzeko.
• Durable protective rubber holster.

2. irudia: Aurrealdea view of the Extech 382252 Earth Ground Resistance Tester, highlighting its display, function dial, and control buttons.

5. Konfigurazioa

5.1 Bateriaren instalazioa

1. Ziurtatu neurgailua itzalita dagoela.
2. Bilatu bateriaren konpartimentuaren estalkia neurgailuaren atzealdean.
3. Erabili bihurkin bat estalkia lotzen duten torlojua(k) kentzeko.
4. Insert six (6) 1.5V AA batteries, observing correct polarity (+/-).
5. Jarri berriro bateriaren konpartimentuaren estalkia eta finkatu torloju(ekin) erabiliz.

5.2 Proba-kableak konektatzea

Connect the test leads to the appropriate input jacks on the meter for the desired measurement function. For earth ground resistance testing, specific connections involving the auxiliary earth bars will be detailed in the operating instructions.

6. Funtzionamendu-argibideak

6.1 Piztu/Itzali

Rotate the function dial from the 'OFF' position to any desired measurement function to power on the meter. To power off, rotate the dial back to the 'OFF' position.

6.2 Automatic Zero Adjustment

The meter features automatic zero adjustment. When selecting a resistance range, the meter will automatically adjust to zero, compensating for lead resistance. Ensure test leads are not shorted or open during this process for accurate zeroing.

6.3 Datuak gordetzeko funtzioa

Sakatu 'HOLD' botoia pantailan uneko irakurketa izozteko. Sakatu berriro eutsia askatzeko eta irakurketa zuzenak berreskuratzeko.

6.4 Atzeko argiztapen funtzioa

Press the backlight button (often indicated by a light bulb icon) to illuminate the display for better visibility in dark environments. Press it again to turn off the backlight.

7. Earth Ground Resistance Measurement

The Extech 382252 uses the 3-wire (or Fall-of-Potential) method for earth ground resistance measurements. This method requires the use of the two auxiliary earth bars provided.

7.1 Measurement Procedure (3-Wire Method)

1. Prestaketa: Ziurtatu probatzen ari den zirkuitua deskonektatuta eta segurtasunez isolatuta dagoela.
2. Placement of Auxiliary Earth Bars:
   • Drive the first auxiliary earth bar (P) into the ground at a suitable distance from the earth electrode (E) being tested.
   • Drive the second auxiliary earth bar (C) into the ground at a further distance from P, ensuring all three points (E, P, C) are in a straight line. Typical distances are 5-10 meters (15-30 feet) between E and P, and P and C, but may vary based on soil conditions and electrode size.
3. Proba-kableak konektatzea:
   • Connect the 'E' terminal of the meter to the earth electrode under test.
   • Connect the 'P' terminal of the meter to the first auxiliary earth bar (P).
   • Connect the 'C' terminal of the meter to the second auxiliary earth bar (C).
4. Aukeratu barrutia: Rotate the function dial to the desired Earth Ground Resistance range (20Ω, 200Ω, or 2000Ω). Start with the highest range if the resistance value is unknown.
5. Perform Test: Press the 'TEST' button. The meter will inject a current and measure the voltage drop to calculate the earth ground resistance.
6. Irakurri neurketa: The resistance value will be displayed on the LCD.
7. Zehaztasuna egiaztatu: For critical measurements, it is recommended to repeat the test with the auxiliary earth bars placed at slightly different distances to ensure the reading is stable and accurate.

8. Other Measurements

8.1 AC/DC Voltage Neurketa

1. Connect the red test lead to the 'V' input jack and the black test lead to the 'COM' input jack.
2. Rotate the function dial to the desired ACV (750V AC) or DCV (1000V DC) range.
3. Konektatu proba-zundak neurtu beharreko zirkuituan edo osagaian.
4. Irakurri liburukiatagPantailako balioa.

8.2 Erresistentzia Neurketa

1. Ziurtatu zirkuitua edo osagaia deskonektatuta dagoela.
2. Connect the red test lead to the 'V' input jack and the black test lead to the 'COM' input jack.
3. Rotate the function dial to the desired Resistance range (e.g., 200Ω, 20kΩ, 200kΩ).
4. Konektatu proba-zundak osagaiaren artean.
5. Irakurri erresistentziaren balioa pantailan.

8.3 Jarraitasun proba

1. Ziurtatu zirkuitua edo osagaia deskonektatuta dagoela.
2. Connect the red test lead to the 'V' input jack and the black test lead to the 'COM' input jack.
3. Rotate the function dial to the Continuity position (often indicated by a speaker icon).
4. Connect the test probes across the component or wire.
5. An audible beep indicates continuity (low resistance). The display will show the resistance value.

9. Mantentzea

9.1 Garbiketa

Wipe the meter with a dry, soft cloth. Do not use abrasives or solvents. Periodically clean the test leads and probes to ensure good electrical contact.

9.2 Bateria ordezkatzea

When the low battery indicator appears on the display, replace the batteries promptly to maintain measurement accuracy. Refer to Section 5.1 for battery installation instructions.

9.3 Biltegiratzea

If the meter is to be stored for an extended period, remove the batteries to prevent leakage and damage. Store the meter in its carrying case in a cool, dry environment, away from direct sunlight and extreme temperatures.

10. Arazoak

• No Display/Meter Not Powering On: Check battery installation and ensure batteries are fresh. Verify the function dial is not in the 'OFF' position.
• Irakurketa okerrak: Ensure test leads are properly connected and not damaged. Check battery level. For earth ground resistance, verify proper placement and connection of auxiliary earth bars and ensure good contact with the ground.
• Jarraitasun-txisturik ez: Check if the circuit is truly continuous. Ensure test leads are making good contact.
• Pantailak 'OL' (gainkarga) erakusten du: Neurtutako balioak hautatutako tartea gainditzen du. Aldatu tarte handiago batera.

If issues persist after following these steps, contact customer support.

11. Zehaztapenak

12. Bermea

The Extech 382252 Earth Ground Resistance Tester Kit typically comes with a 1 urteko berme mugatua from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse, accident, unauthorized repair, or modification. Please retain your proof of purchase for warranty claims.

13. Laguntza

For technical assistance, calibration services, or further information regarding your Extech 382252, please refer to the official Extech webwebgunera edo jarri harremanetan bezeroarentzako arreta-sailarekin. Harremanetarako datuak normalean fabrikatzailearen webgunean aurki daitezke. webgunean edo zure produktuarekin batera datorren dokumentazioan.