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The M700 AC/DC Clamp Milli-Ammeter (CE) or Precise AC DC Leakage Current Tester is accurate and sleek with a rugged and reliable design. The Precise AC DC Leakage Current Tester is capable of measuring 4-20 mA in control circuit and there are different internal opening diameters of the clamps. From small current leakage to high load currents, the Precise AC DC Leakage Current Tester can measure all currents in µA or ma while testing protection relays. The application area of the Precise AC DC Leakage Current Tester is automobile electronics and they can check earth leakage currents and small third harmonic leakage current from lightening arresters as well. There are special models for AC leakage clamps and AC/DC leakage clamps, and the Precise AC DC Leakage Current Tester can also be availed for clamps with multi meter functions, leakage current check and load current check in high voltage cables.
Details :
Features :
| Model | CL420 | |
|---|---|---|
| Diameter of measurable conductor | 6mm diameter max. | |
| DC Current | Range and resolution [Measuring range] | Measuring accuracy (*1) |
| 20.00 mA [0.00 to±21.49mA] 100.0 mA [±21.0 to ±126.0mA] | ±(0.2%rdg+5dgt) (*2) ±(1.0%rdg+5dgt) | |
| DC Voltage OUTPUT | 20.00 mA [0.0 to±214.9mV] 100.0 mA [±210 to±1260mV] | (DCA Accuracy)+(±0.5mV) (DCA Accuracy)+(±3mV) |
| Display | 4-digit LCD Numeric display | |
| Response time | Approx. 1.5 seconds (2.5 seconds when across the range) | |
| Range switching | Auto range | |
| Operating temperature and humidity | -10oC to +50oC 80% RH or less (no condensation) | |
| Safety Standards | EN61010-1, EN61010-2-030, EN61010-2-032 | |
| Withstanding voltage | 2.21kV AC for 5 seconds (between the core and the case) | |
| Power supply | Four AA-size alkaline batteries (1.5V LR6) | |
| Battery life | Approx. 60hrs (continuous) backlight off and LED light off | |
| Other functions | Data hold, Zero adjust function, Auto power off, LED Torch light, Back light display, Illuminant panel | |
| External dimensions and weight | 61 (W) x 111 (H) x 40 (D) mm Approx. 290g (including batteries) | |
| Standard accessories | User’s Manual, Batteries, Soft case (93045) | |
(*1) At 23oC ±5oC, 45% to 75%RH
Measurement accuracy: ±(% of reading + digits)
Terms of accuracy : Open and close the clamp sensor after power on and perform zero adjustment.
(*2) The 20mA range accuracy assurance is the average of 5 times measuring.
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