Buku Panduan Pangguna Kit Alat Uji Résistansi Tanah Extech 382252

1. Bubuka

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. Émbaran Kasalametan

Awas: 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.

• Ulah ngaleuwihan wates input maksimum pikeun fungsi nanaon.
• Exercise extreme caution when working with live electrical circuits.
• Ensure the meter is in good working condition and free from damage before use.
• Salawasna anggo fungsi sareng rentang anu leres pikeun pangukuran.
• Ganti batréna nalika indikator batré lemah némbongan pikeun mastikeun bacaan anu akurat.
• Keep hands and fingers away from test probe tips when making measurements.
• Ulah ngoperasikeun méteran dina atmosfir anu gampang ngabeledug atanapi nalika aya gas atanapi lebu anu gampang kaduruk.

3. Eusi Paket

Pastikeun yén sadaya barang aya sareng henteu ruksak nalika ngabongkar:

• Extech 382252 Earth Ground Resistance Tester
• Test Leads (set)
• Auxiliary Earth Bars (2 pieces)
• Mawa Kasus
• Protective Rubber Holster
• 1.5V AA Batteries (6 pieces)

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. Fitur Produk

The Extech 382252 offers the following key features:

• Earth Ground Resistance measurement in three ranges: 20Ω, 200Ω, and 2000Ω.
• AC / DC Voltage. kamampuan pangukuran.
• Resistance and Continuity testing functions.
• Automatic zero adjustment for accurate readings.
• Pintonan LCD ageung sareng gampang dibaca.
• Data Hold function to freeze displayed readings.
• Lampu latar pikeun pisibilitas dina kaayaan cahaya anu kirang.
• Durable protective rubber holster.

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

5. Setélan

5.1 Pamasangan batré

1. Pastikeun méterna pareum.
2. Panggihan panutup kompartemen batré di tukang méteran.
3. Use a screwdriver to remove the screw(s) securing the cover.
4. Insert six (6) 1.5V AA batteries, observing correct polarity (+/-).
5. Pasang deui panutup kompartemen batré teras pageuhkeun nganggo sekrup.

5.2 Nyambungkeun Test Leads

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. Parentah Operasi

6.1 Daya Hurung/Pareuman

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 Data Tahan Fungsi

Pencét tombol 'HOLD' pikeun ngeureunkeun bacaan ayeuna dina tampilan. Pencét deui pikeun ngaleupaskeun ditahan sareng neraskeun bacaan langsung.

6.4 Fungsi lampu tukang

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. Persiapan: Ensure the circuit under test is de-energized and safely isolated.
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. Nyambungkeun Kabel Tés:
   • 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. Pilih Range: 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. Ngalakukeun Tés: Press the 'TEST' button. The meter will inject a current and measure the voltage drop to calculate the earth ground resistance.
6. Baca pangukuran: The resistance value will be displayed on the LCD.
7. Verifikasi Akurasi: 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 Pangukuran

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. Sambungkeun probe tés ka sakuliah sirkuit atanapi komponén anu badé diukur.
4. Baca voltage nilai dina tampilan.

8.2 Résistansi Ukur

1. Pastikeun sirkuit atanapi komponén di-de-energized.
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. Sambungkeun panyilidikan tés sakuliah komponén.
5. Maca nilai résistansi dina tampilan.

8.3 Tés Continuity

1. Pastikeun sirkuit atanapi komponén di-de-energized.
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. Sambungkeun probe tés kana komponén atanapi kawat.
5. An audible beep indicates continuity (low resistance). The display will show the resistance value.

9. Pangropéa

9.1 beberesih

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 Ngagantian batré

Nalika indikator batré lemah némbongan dina tampilan, geuwat gentos batréna pikeun ngajaga akurasi pangukuran. Tingali Bagian 5.1 pikeun parentah pamasangan batré.

9.3 Panyimpenan

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. Cara ngungkulan

• No Display/Meter Not Powering On: Check battery installation and ensure batteries are fresh. Verify the function dial is not in the 'OFF' position.
• Bacaan teu akurat: 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.
• Taya Continuity Bip: Check if the circuit is truly continuous. Ensure test leads are making good contact.
• Tampilan Némbongkeun 'OL' (Kaleuwihan Beban): The measured value exceeds the selected range. Switch to a higher range.

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

11. Spésifikasi

12. Garansi

The Extech 382252 Earth Ground Resistance Tester Kit typically comes with a 1-taun jaminan kawates 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. Rojongan

For technical assistance, calibration services, or further information regarding your Extech 382252, please refer to the official Extech website or contact their customer support department. Contact details can usually be found on the manufacturer's websitus atanapi dina dokuméntasi anu kalebet sareng produk anjeun.