Uvod
This manual provides detailed instructions for the safe and effective operation of your RuoShui 140A Digital Current Clamp Meter. This device is designed for measuring AC line current, AC/DC voltage, resistance, and continuity. Please read this manual thoroughly before use and retain it for future reference.
Važna sigurnosna uputstva
Uvijek se pridržavajte sigurnosnih mjera opreza prilikom korištenja električne opreme za testiranje. Nepoštivanje ovih mjera može dovesti do ozljeda ili oštećenja uređaja.
- Ne koristite mjerač ako izgleda oštećeno ili ako je izolacija oštećena.
- Prije upotrebe provjerite je li poklopac baterije sigurno zatvoren.
- Do not measure current on circuits exceeding AC 600V.
- Always use caution when working with live circuits.
- Refer to the warning labels on the device for maximum voltage i trenutne ocjene.
Product Overview i komponente
The RuoShui 140A Digital Current Clamp Meter is a high-precision instrument featuring a special alloy clamp core for stable and reliable measurements. It incorporates magnetic shielding technology to minimize external interference.
Ključne komponente

This image displays the RuoShui 140A Digital Current Clamp Meter with its main components labeled: 1. Double Input Toroid, 2. HOLD Key, 3. Toroid Opening Lever, 4. POWER key, 5. LCD display, 6. Lanyard hole, 7. RS232 Interface. Dimensions are also indicated: 175mm length, 70mm width, 38mm depth.
- Clamp vilica: Used to encircle the conductor for non-contact current measurement.
- LCD ekran: Prikazuje očitanja mjerenja, jedinice i indikatore funkcija.
- Dugme POWER: Uključuje/isključuje uređaj.
- Dugme HOLD: Freezes the current reading on the display. Also used for data storage and recall.
- RS232 sučelje: For connecting to a PC for data transfer and analysis.
- Pretinac za baterije: Sadrži bateriju od 9 V.
Setup
Instalacija baterije
The device requires one 9V battery (included).

This image shows the back of the clamp meter with the battery cover open, revealing the compartment for a 9V battery.
- Pronađite odjeljak za baterije na stražnjoj strani mjerača.
- Koristite odvijač da otvorite poklopac baterije.
- Insert a 9V battery, observing the correct polarity.
- Dobro zatvorite poklopac baterije.
Uputstvo za upotrebu
Video demonstracije proizvoda
This video demonstrates the physical features of the RuoShui 140A Digital Current Clamp Meter, including powering on, opening the clamp jaw, and performing a current measurement in a circuit breaker box.
Uključivanje/isključivanje
Pritisnite POWER button to turn the meter on. Press and hold the POWER button to turn it off. The meter features an automatic shut-down function to conserve battery life.
Mjerenje izmjenične struje
This meter is designed for non-contact AC current measurement.

This image illustrates the clamp meter in use, measuring current on a wire. The display shows "AC 5.00mA".
- Uključite mjerač.
- Pritisnite ručicu da otvorite clamp vilica.
- Encircle a single conductor (not a bundle of wires) with the clamp vilica. Provjerite je li vilica potpuno zatvorena.
- Read the AC current value displayed on the LCD screen.
Funkcija zadržavanja podataka
Pritisnite HOLD button briefly to freeze the current reading on the display. Press it again to release the hold and resume live measurements.
Pohranjivanje i prikupljanje podataka
The meter can store up to 60 measurement readings.
- Da biste sačuvali očitanje, pritisnite HOLD button briefly while a measurement is displayed. The display will show a storage location number (e.g., "01").
- To recall stored data, press and hold both the POWER i HOLD buttons simultaneously. The display will show the first stored reading.
- Kratko pritisnite HOLD button to cycle through the stored readings.
- To exit data recall mode, press the POWER dugme.
Brisanje pohranjenih podataka
To delete all stored data, enter data recall mode (press and hold POWER i HOLD). Then, press and hold the HOLD button until "DEL" appears on the screen, indicating all memories have been cleared. Note: Individual readings cannot be deleted; only all stored data can be cleared at once.
PC Connection and Software
The meter is equipped with an RS232 interface for connecting to a PC. This allows for online monitoring, historical data inquiry, active curve drawing, and alarm setting. Data can be saved and printed using the provided software.

This image shows the clamp meter, a USB cable for PC connection, and its packaging.
- Connect the meter to your PC using the provided USB to Micro USB cable.
- Install the accompanying software (typically found on a CD or available for download from the manufacturer's webweb lokacija).
- Follow the software instructions for data transfer, monitoring, and analysis.
Održavanje
- Mjerač držite čistim i suhim. Koristite meku,amp krpu za čišćenje; ne koristite abrazivna sredstva za čišćenje ili rastvarače.
- Store the meter in its protective pouch when not in use to prevent damage.
- Zamijenite bateriju kada se na ekranu pojavi indikator slabe baterije.
- Do not attempt to repair the meter yourself. Refer to qualified service personnel for any repairs.
Rješavanje problema
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Mjerač se ne uključuje | Prazan ili neispravno instaliran akumulator | Provjerite instalaciju baterije; zamijenite bateriju ako je potrebno. |
| Netačna očitavanja | Clamp jaw not fully closed; multiple conductors within jaw; external magnetic interference | Ensure jaw is closed; measure only one conductor; move away from strong magnetic fields. |
| PC software not connecting | Incorrect cable connection; software not installed or outdated drivers | Verify USB cable connection; install/update software and drivers. |
Tehničke specifikacije
- Model: 140A
- Measurement Range (AC Current): 0.000mA do 60.00A
- Max AC Voltage: 600V
- Veličina čeljusti: 25 mm x 30 mm (0.9 x 1.1 inča)
- Pohrana podataka: Do 60 očitavanja
- Interfejs: RS232 (USB connection via adapter cable)
- Izvor napajanja: 1 x 9V baterija
- Dimenzije proizvoda: 7.09 x 2.95 x 1.65 inča (175 mm x 70 mm x 38 mm)
- Težina artikla: 4.23 unci (120 grama)
- Sigurnosna ocjena: CAT III 600V MAX
Garancija i korisnička podrška
RuoShui is committed to providing reliable products and excellent customer support. For any questions, issues, or warranty claims, please contact the seller or manufacturer directly.




