Megger DCM300E-Earth Leakage Clamp Meter

The Avo/Megger DCM300E is a High Resolution AC Clamp Meter thats perfect for checking nuisance tripping RCD’s The DCM300E is designed primarily to check earth leakage currents with a dedicated 30 mA range providing resolution down to 10 µA but can also test earth leakage on RCD’s rated at: 300 mA, 30 A and 300 A (Resolution 0.01 mA).

Normal use for the DCM300E would be the measurement of earth leakage current in a circuit where the GFCI repeatedly trips out. The measured result will quickly identify whether an excessive leakage current is causing the GFCI to trip, or if the GFCI itself is faulty. The analog style bargraph of the DCM300E is very useful when monitoring changes, allowing the operator to easily interpret the rapidly changing bargraph rather than the digital display.

Other key functions include the “Data Hold” feature which aids in measurements where there is a problem with accessibility or poor lighting, and the automatic power off feature that extends the battery life.The Megger DCM300E AC clampmeter was also designed with safety in mind and exceeds the latest safety design standards IEC1010-2-32 and EMC requirements.

Megger DCM300E-Earth Leakage Clamp Meter Specifications:

• Measuring Method: Dual integration mode
• Measuring Function: Leakage current and load current
• Display: 3,5 digit L.C.D.; max. reading of 3200
• Range: 0-30 mA/300 mA/30 A/300 A (50/60Hz)
• Ranging: 2 manual ranges.
• Accuracy specified at operating temperature: 23°C ± 5°C, 80% RH max.
• Range Min. Resolution Accuracy
  30/300 mA 0,01/0,1 mA ±1,2% rdg ±5 dgt
  0-200 A: ±1,2% rdg ±5 dgt.
  30/300 A 0,01/0,1 A 200-250 A: ±3,0% rdg ±5 dgt
  250-300 A: ±5,0% rdg ±5 dgt
• Jaw Opening Capability: 40 mm
• Over Range Indication: “OL” mark on L.C.D.
• Maximum Indication: 3200
• Low Battery Indication: 2,5 V – 2,7 V; “+-” mark on L.C.D.
• Data Hold Indication: “DH” mark on L.C.D.
• Sampling Time: Approx. 2 times/sec.
  (digital display)
• Approx. 12 times/sec.
  (bargraph display)
• Auto Power Off: The meter is set to power off
• mode approx. 10 minutes after the
• power switch on
  Limitation of Circuit Voltage: Less than a.c. 600 V
• Withstanding Voltage: a.c. 3700 V/1 minute max.
  (between the core of CT and the unit housing)
• Operating Temperature: 0 – 40 °C <80% RH
  (non-condensing).
• Storage Temperature: -10 – 60 °C <70% RH
  (non-condensing).
• Power Supply: 2 x 1,5 V button cells LR44 or SR 44
• Power Consumption: Approx. 5 mW
• Battery Life: Approx. 50 hrs. (LR44).
• Size: 64 (W) x 176 (H) x 23 (D) mm
  2,5 (W) x 7 (H) x ,9 (D) inches
• Weight: Approx. 125 g (1⁄4 lb. approx.

Related Product

If you’re looking for another similar product click the link below:

• Megger DCM 305E