Kupu Whakataki
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.
Nga korero haumaru
WHAKATŪPATO: 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.
- Do not use the instrument if it appears damaged or is operating abnormally.
- Ensure the battery compartment is securely closed before use.
- Avoid contact with live circuits during measurement.
- The instrument is double-insulated for enhanced safety.
He aha kei roto i te Pouaka
Manatokona kei te noho nga mea katoa i te wa e wetewete ana:
- AEMC Ground Resistance Tester Model 3711
- Calibration Check Loop, 25Ω
- Te Kawea Maamaa
- 9V Pūhiko Alkaline
- Pukapuka Kaiwhakamahi (tenei tuhinga)
Ka mutu te huaview

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 Kauae: 1.25" opening to accommodate ground rods and cables up to 1000kcmil.
- Whakaaturanga LCD: Digital readout for resistance and current measurements.
- Patene Mana: For power, data hold, and mode selection.
- Wāhanga Pūhiko: Located at the rear for a 9V battery.
Tatūnga me te Tāuta Pūhiko
- Open the battery compartment cover on the rear of the instrument.
- Insert the supplied 9V Alkaline battery, observing correct polarity.
- Katia kia mau te uhi o te wahanga pākahiko.
- Press the "ON" button to power on the device. The display should illuminate.
Nga Tohutohu Whakahaere
Ground Resistance Measurement
- Power on the AEMC 3711.
- Whakatuwheratia te clamp jaws by pressing the release lever.
- Whakanohoia te clamp around the ground conductor or rod to be tested, ensuring the jaws are fully closed.
- The instrument will automatically measure and display the ground resistance in Ohms (Ω).
- For stable readings, allow approximately one second for the measurement to settle.
- To hold the current reading on the display, press the "HOLD" button. Press again to release.
Inenga o naianei
- Power on the AEMC 3711.
- Whakatuwheratia te clamp kauae.
- Whakanohoia te clamp around the conductor carrying the current to be measured (leakage, neutral, or phase current). Ensure the jaws are fully closed.
- The instrument will automatically measure and display the current in Amperes (A) milli raneiAmpere (mA).
- 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).
Te Tiaki me te Whakatau
Te horoi
Horoia te taputapu ki te ngohengohe, damp kakahu. Kaua e whakamahi i nga kai horoi me nga whakarewa.
Whakakapinga Pūhiko
Ina puta te tohu iti o te pākahiko i runga i te whakaaturanga, whakakapihia te pākahiko 9V i whakaahuatia i roto i te waahanga "Tautuhi me te Whakanoho Pūhiko".
Tirohanga Whakatau
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.
Rokiroki
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.
Raparongoā
- No Display/Instrument Not Powering On: Check battery installation and ensure the battery has sufficient charge. Replace if necessary.
- Panui Uuukore: Me whakarite te clamp jaws are fully closed around the conductor. Verify there is no excessive electrical noise in the environment.
- "OL" or Overload Indication: 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.
- Nga Panui Heke: Perform a calibration check using the 25Ω loop. If the issue persists, contact technical support.
Whakatakotoranga
| Tawhā | Uara |
|---|---|
| Ground Resistance Range | Autoranging 0.01 to 1200Ω |
| Awhe Inenga o naianei | Autoranging 1mA to 30.00A RMS |
| Resistance Measuring Frequency | 2403Hz |
| Current Measuring Frequency | 47 ki te 800Hz |
| Accuracy (Resistance) | ±2% reading ±0.02Ω (up to 25% of reading for 600-1200Ω) |
| Te Waahi Mahi | -10 ki te 55°C (14 ki te 131°F) |
| Puna Mana | 9V pākahiko (kei roto) |
| Taumaha | 1kg (2.2lbs) |
| Ahu (H x W x D) | 235 x 100 x 55mm (9.25 x 3.94 x 2.17 inihi) |
| Whakatuwheratanga Kauae | 1.25 inihi |
| Whakatauranga Haumaru | EN 61010, CAT III, UL approved, CE marked |
Pūtāhui me te Tautoko
For warranty information, technical support, or service inquiries, please refer to the official AEMC Instruments webpaetukutuku, whakapā atu ranei ki ta raatau tari ratonga kaihoko. Puritia to rihiti hoko mo nga kereme whakamana.





