AEMC Model 3711 Clamp-Manuel d'utilisation du testeur de résistance à la terre

Introduction

The AEMC Model 3711 is a portable clamp-on ground resistance tester designed for measuring electrical ground rod and grid resistance in multi-grounded systems. This instrument offers a non-intrusive method for testing without the need for auxiliary rods or disconnecting the ground system. It also measures leakage, neutral, and phase currents, providing a comprehensive solution for electrical system analysis.

Consignes de sécurité

AVERTISSEMENT: Always read and understand all safety instructions before operating this instrument. Failure to do so may result in serious injury or death.

• This instrument is rated CAT III, indicating its suitability for measurements in building installations.
• Adhere to all local and national safety codes and regulations.
• N’utilisez pas l’instrument s’il semble endommagé ou s’il fonctionne anormalement.
• Assurez-vous que le compartiment à piles est bien fermé avant utilisation.
• Avoid contact with live circuits during measurement.
• The instrument is double-insulated for enhanced safety.

Qu'y a-t-il dans la boîte

Vérifiez que tous les articles sont présents lors du déballage :

• AEMC Ground Resistance Tester Model 3711
• Calibration Check Loop, 25Ω
• Sacoche de transport
• Pile alcaline 9 V
• Manuel de l'utilisateur (ce document)

Produit terminéview

Image: The AEMC Model 3711 Clamp-On Ground Resistance Tester. This image displays the device with its red clamp jaws open, a black body, and a green digital display showing "9.8 Ω". Control buttons are visible below the display.

The AEMC Model 3711 features an ergonomic design for one-handed operation. Its robust polycarbonate construction ensures durability for outdoor use. Key components include:

• Clamp Mâchoires: 1.25" opening to accommodate ground rods and cables up to 1000kcmil.
• Écran LCD : Digital readout for resistance and current measurements.
• Boutons de contrôle : For power, data hold, and mode selection.
• Compartiment à piles : Situé à l'arrière pour une pile 9V.

Configuration et installation de la batterie

1. Open the battery compartment cover on the rear of the instrument.
2. Insert the supplied 9V Alkaline battery, observing correct polarity.
3. Fermez soigneusement le couvercle du compartiment à piles.
4. Press the "ON" button to power on the device. The display should illuminate.

Mode d'emploi

Ground Resistance Measurement

1. Power on the AEMC 3711.
2. Ouvrir le clamp mâchoires en appuyant sur le levier de déverrouillage.
3. Placez le clamp around the ground conductor or rod to be tested, ensuring the jaws are fully closed.
4. The instrument will automatically measure and display the ground resistance in Ohms (Ω).
5. For stable readings, allow approximately one second for the measurement to settle.
6. To hold the current reading on the display, press the "HOLD" button. Press again to release.

Mesure du courant

1. Power on the AEMC 3711.
2. Ouvrir le clamp mâchoires.
3. Placez le clamp around the conductor carrying the current to be measured (leakage, neutral, or phase current). Ensure the jaws are fully closed.
4. The instrument will automatically measure and display the current in Amperes (A) ou milliAmpmètre (mA).
5. The current measurement function provides direct readings for leakage current flowing to ground or circulating in ground loops (down to 1mA) and neutral/phase currents (up to 30A RMS).

Maintenance et étalonnage

Nettoyage

Nettoyez l'instrument avec un chiffon doux, damp chiffon. N'utilisez pas de nettoyants abrasifs ou de solvants.

Remplacement de la batterie

Lorsque l'indicateur de batterie faible apparaît sur l'écran, remplacez la pile 9V comme décrit dans la section « Configuration et installation de la pile ».

Vérification de l'étalonnage

Use the supplied 25Ω calibration check loop to verify the instrument's accuracy periodically. Clamp the tester around the loop; the reading should be approximately 25Ω. If the reading deviates significantly, contact AEMC customer support for service.

Stockage

Store the instrument in its hard carrying case in a dry, cool environment when not in use. Remove the battery if storing for extended periods.

Dépannage

• No Display/Instrument Not Powering On: Vérifiez l'installation de la batterie et assurez-vous qu'elle est suffisamment chargée. Remplacez-la si nécessaire.
• Lectures instables : Assurer la clamp jaws are fully closed around the conductor. Verify there is no excessive electrical noise in the environment.
• Indication « OL » ou de surcharge : The measured value exceeds the instrument's range. Ensure the correct measurement function is selected or the circuit parameters are within the device's limits.
• Lectures inexactes : Perform a calibration check using the 25Ω loop. If the issue persists, contact technical support.

Caractéristiques

Garantie et assistance

For warranty information, technical support, or service inquiries, please refer to the official AEMC Instruments webConsultez leur site web ou contactez leur service client. Conservez votre reçu d'achat pour toute réclamation au titre de la garantie.