1. Увод
The TOOLTOP DY4100A and DY4100B are advanced digital earth resistance testers designed for precise measurement of ground resistance and soil resistivity. These instruments are essential for electricians and professionals requiring accurate electrical grounding system evaluations. Featuring a large, clear display, high precision, and robust overload protection, these testers ensure reliable and safe operation in various environments.
2. Безбедносне информације
Увек се придржавајте следећих мера предострожности како бисте спречили струјни удар, повреде или оштећење инструмента:
- Read and understand this manual completely before using the instrument.
- Do not operate the tester if it appears damaged or is not functioning correctly.
- Ensure all test leads and probes are in good condition before use.
- Увек носите одговарајућу личну заштитну опрему (ЛЗО), као што су изоловане рукавице и заштитне наочаре.
- Avoid contact with live circuits. The tester is designed for measuring earth resistance, not live voltage.
- Do not use the instrument in wet or explosive environments.
- Disconnect all test leads from the circuit before changing the function switch.
- Одмах замените батерије када се појави индикатор празне батерије како бисте осигурали тачна очитавања.
3. Садржај пакета
Проверите да ли су све ставке наведене у наставку укључене у ваш пакет:
- TOOLTOP DY4100A or DY4100B Digital Earth Resistance Tester
- Test Leads (various colors and lengths)
- Помоћни земљани шиљци
- Торба за ношење
- Упутство за употребу

Figure 3.1: Included accessories for DY4100A and DY4100B models.
4. Производ је готовview
4.1 Кључне карактеристике
- Велики дигитални екран: Provides clear, easy-to-read measurements, enhancing efficiency.
- Висока прецизност: Ensures accurate and rapid detection of earth resistance and voltage.
- Multi-Gear Measurement: Offers three-gear position measurement (2Ω, 20Ω, 200Ω, 2000Ω ranges) suitable for diverse testing scenarios.
- Заштита од преоптерећења: Features double protection for enhanced safety during measurements.
- Издржљив дизајн: Equipped with a protective cover made from thick, drop-resistant, and dust-proof material.
- Волtagе Мерење: Capable of measuring AC voltage to ground (up to 600V) and photovoltaic DC voltagе (до 1500 В).
- Automatic Safety System: Integrated for user protection.

Figure 4.1: Key features of the DY4100A model.
4.2 Изглед уређаја
Familiarize yourself with the main components and controls of the tester:
- ЛЦД екран: Приказује очитавања мерења, јединице и индикаторе.
- Точкић функција: Selects measurement ranges (2Ω, 20Ω, 200Ω, 2000Ω) and OFF position.
- Улазни прикључци: Connect test leads for V, S, ES, E/COM measurements.
- ТЕСТ дугме: Покреће процес мерења.
- ФН дугме: Function button for additional settings or modes.
- Дугме ЕНТЕР: Потврђује изборе.
- Одељак за батерије: Located at the rear for battery installation.

Слика 4.2: Детаљно view of the display, function dial, and input terminals.
5. Подешавање
5.1 Инсталација батерије
The DY4100A/B requires 6 x AA (No. 5) batteries (not included). To install:
- Пронађите поклопац одељка за батерије на задњој страни инструмента.
- Користите шрафцигер да отворите поклопац.
- Уметните 6 АА батерије, водећи рачуна о исправном поларитету (+/-).
- Вратите поклопац одељка за батерије и причврстите га завртњем.
5.2 Connecting Test Leads and Earth Spikes
For accurate earth resistance measurements, proper connection of test leads and auxiliary earth spikes is crucial. Refer to the specific measurement method in the operating instructions for detailed connection diagrams.
6. Упутство за употребу
6.1 Општи кораци мерења
- Ensure the instrument is clean and in good working condition.
- Поставите свеже батерије.
- Select the desired measurement function using the rotary dial.
- Connect the test leads and auxiliary earth spikes according to the specific measurement method.
- Притисните тастер ТЕСТ дугме за покретање мерења.
- Очитајте вредност мерења на ЛЦД екрану.
- After measurement, turn the rotary dial to the OFF position.
6.2 Earth Resistance Measurement (2-pole or 3-pole method)
The DY4100A/B supports 2-pole and 3-pole earth resistance measurements. For 3-pole measurement, connect the test leads as follows:
- Connect the green lead to the 'E/COM' terminal and to the earth electrode under test.
- Connect the yellow lead to the 'S' terminal and to the potential auxiliary earth spike (P1).
- Connect the red lead to the 'ES' terminal and to the current auxiliary earth spike (C1).
- Ensure the auxiliary earth spikes are driven into the ground at appropriate distances from the earth electrode under test (typically 5-10 meters apart).
- Select the appropriate resistance range (e.g., 20Ω, 200Ω, 2000Ω) using the function dial.
- Притисните тастер ТЕСТ button. The measured earth resistance will be displayed.
6.3 Soil Resistivity Measurement (DY4100B only)
The DY4100B model is capable of measuring soil resistivity (ρ). This typically involves the Wenner method using four earth spikes.
- Connect the four test leads to the 'V', 'S', 'ES', and 'E/COM' terminals and to four equally spaced earth spikes (A, B, C, D) driven into the ground.
- Ensure the spacing 'a' between the spikes is consistent.
- Select the soil resistivity function on the dial.
- Input the spike spacing 'a' if required by the instrument (refer to specific DY4100B manual for input method).
- Притисните тастер ТЕСТ button. The soil resistivity (ρ) will be calculated and displayed.
6.4 Волtagе Мерење
The instrument can measure AC voltage to ground and photovoltaic DC voltage.
- АЦ Волtagе на земљу: Connect the test leads to the 'V' and 'E/COM' terminals. Select the AC voltage function. The voltagе ће бити приказано.
- Пхотоволтаиц Волtage: Connect the test leads to the 'V' and 'E/COM' terminals. Select the DC voltage function. The photovoltaic open circuit voltage will be displayed. The DY4100A/B offers a wide range up to 1500V for photovoltaic measurements.

Figure 6.1: Photovoltaic voltage measurement in progress.
6.5 Series Interference Voltagе Упозорење
When testing ground resistance and soil resistivity, the instrument automatically detects series interference voltage. If an abnormal test result is detected due to interference, a warning will be displayed.

Figure 6.2: Series interference voltage warning on the display.
7. Одржавање
7.1 Чишћење
- Wipe the instrument's casinг са меким, дamp тканина. Немојте користити абразивна средства за чишћење или раствараче.
- Ensure no moisture enters the instrument.
7.2 Складиштење
- Када се не користи дуже време, извадите батерије да бисте спречили цурење.
- Store the instrument in its carrying bag in a cool, dry place, away from direct sunlight and extreme temperatures.
КСНУМКС. Решавање проблема
If you encounter issues with your DY4100A/B tester, refer to the following common problems and solutions:
- Нема дисплеја/Укључено: Проверите да ли су батерије инсталиране и уверите се да нису празне. Замените их ако је потребно.
- Нетачна очитавања:
- Уверите се да су мерни каблови безбедно повезани и да нису оштећени.
- Verify auxiliary earth spikes are properly driven into the ground and at correct distances.
- Check for strong electrical interference in the testing area.
- Ensure the correct measurement range is selected.
- "OL" or Overload Indication: The measured value exceeds the selected range. Switch to a higher range or check for open circuits.
- Индикатор слабе батерије: Замените све батерије новим.
Ако проблем и даље постоји, контактирајте корисничку подршку.
9. Спецификације
The following table details the technical parameters and general specifications for the TOOLTOP DY4100A/DY4100B Digital Earth Resistance Tester:

Figure 9.1: Technical Parameters for DY4100A/DY4100B.
| Параметар | Валуе |
|---|---|
| Број модела | TT-DY4100A |
| Бранд | ТООЛТОП |
| Боја | Мултицолор |
| Тежина производа | 1 килограма |
| Димензије пакета | 20 к 15 к 10 цм |
| Усклађеност | ЦЕ, РоХС |
| Доступност резервних делова (ЕУ) | 1 година |
9.1 Димензије

Figure 9.2: Physical dimensions of DY4100A and DY4100B.
10. Гаранција и подршка
For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official TOOLTOP webсајт. Сачувајте рачун као доказ о куповини за потребе гаранције.