The best tool for precisely and reliably measuring other AC current up to 100A AC, including earth leakage current, is the Megger DCM305E Earth Leakage Clamp Meter. Depending on the current magnitude, it has a great accuracy of ±1% and a precision of just 0.001mA. For both sinusoidal and non-sinusoidal waveforms, the instrument benefits from True RMS measurement, and a low pass filter aids in maintaining steady results. Maximum precision is made possible by a number of range options, which can be manually or automatically set. Breach The Megger DCM305E has a lighted digital screen that shows current readings. Data hold, peak hold, and auto hold are among the display settings available. Three pre-set limitations (0.25, 0.5, and 3.5 mA) are used as additional feedback; if these limits are exceeded, an auditory alert and a visual warning are displayed. Thanks to a raised hand guard, the ergonomic form of the 40mm jaw is safe and easy to maneuver on both insulated and non-insulated conductors. The battery life of the Megger DCM305E is around 60 hours, and it has a Cat III 300V rating. As usual, a soft carry case is included. All things considered, this is a very good and multipurpose AC ammeter for both regular and leakage current.
- Display: 6000 count
Measuring function: TRMS Leakage current and load current
Ranges: 6.000 mA / 60.00 mA / 600.00 mA / 6.000 A / 60.00 A / 100.0 A
Basic accuracy: ± (1.0 % + 3d)
Range, Resolution, and Accuracy of AC Current
0.001 mA / ±(1% reading + 8 digits) / 6 mA
% reading plus 8 digits / 60 mA / 0.01 mA / ±
0.6 mA / ±(1% reading + 8 digits) = 600 mA
6 Amps / 0.001 Amps / ±(1% input plus 8 figures)
60 a/0.01 a/±(2 percent reading plus 10 digits)
100 A divided by 0.1 A and ±(10% reading plus 10 digits)
Frequency response (61 ~ 400 Hz)
0 ~ 10 A ±(2 % reading + 11 digits)
10 ~ 50 A ±(10 % reading + 11 digits)
50 ~ 100 A ±(35 % reading + 11 digits)
Low Pass Filter: Accuracy, Resolution, Range
Six mA / 0.001 mA / ±(2 percent reading plus eight digits)
% reading plus 8 digits divided by 60 mA / 0.01 mA / ±
0.6 mA / ±(2% reading + 8 digits) = 600 mA
0.001 A / ±(2 percent reading plus 8 digits) / 6 A
60 A / 0.01 A / ± (3 percent reading plus 10 digits)
100 A divided by 0.1 A and ±(12% reading plus 10 digits)
Overall
At operating temperature: 23°C ± 5°C <
- 80% RH, accuracy is given.
Rationale: 0.001 mA
50–400 Hz is the operating frequency range.
Rate of sampling: 5 times per second
Data, auto, peak hold: customizable by the user
Filter for low pass: 50/60 Hz
The cut-off frequency of the low pass filter is roughly 100 Hz, and its attenuation characteristic is roughly -24 dB/octave.
Examine the predetermined limits: 0.25, 0.50, and 3.50 milliamperes
40 mm in jaw size (750 mm in conductor size)
Jaw opening maximum: 43 mm
Overload: "
- OL”
After 20 minutes of idleness, auto power off
Temperature range for operation: 0 to 50 °C
Temperature range for storage: -20 to 60°C
Working Altitude: <
- 2000 meters
Temperature coefficient: <
- 18 °C, >
- 28 °C, 0.2 x (Spec. Accuracy) / °C
Power Source: Two 1.5 V alkaline AAA batteries (LR03)
60 hours of battery life
Dimensions: 78 x 203 x 42 mm (W x H)
300 g in weight
EMC: EN61326-1 Safety: EN61010-1 CAT III 300 V
- Calculate the earth leakage current.
Range of AC current: 100A
Resolution: 0.001 milliampere-hour
Precision: ±1%
A real RMS measurement
preset alarm thresholds
40 mm jaw, 60 hours of battery life, 300 volt Cat III
