M-280
FEATURES
- Useful for DC A measurement for automobile service.
- Data-hold function. Especially useful when working in dark or hard to get areas
- Accurate gearing mechanism for closing of CT.
- Ultra compact size.
M-290 RMS
FEATURES
- Ultra compact size and high accuracy AC/DC clamp-on tester.
- Data hold function. Especially useful when working in dark or hard to get areas.
- Wide range of current measurments from AC/DC 0.01A to 200A with 30㎜φ CT and up to 1000A with 40㎜φ CT.
M-2020
FEATURES
- 40㎜φ CT window and ultra compact size
- Low cost and multi-function clamp tester.
- Data-hold function and auto power off.
- Conform to IEC safety requirements.
| SPECIFICATIONS | M280 | M290 TRMS | M2020 | |||
|---|---|---|---|---|---|---|
| Measuring Function : Range | AC Current:1000A DC Current:1000A AC Voltage:500V DC Voltage:500V Resistance:600Ω | AC Current:40A/400A DC Current:40A/400A AC Voltage:60V/600V DC Voltage:60V/600V Resistance:1000Ω | AC Current:30A/300A (2 ranges auto) AC Voltage:3V～500V (4 ranges auto, 50/60Hz) DC Voltage:300mV～500V(5 ranges auto) Resistance:300Ω/3000Ω (2 ranges auto) | |||
| Accuracy | (23℃±5℃, 80%RH or less) Range/Input range/Accuracy AC Current (ACA)/0～600A/±1.5%rdg±8dgt AC Current (ACA)/600.1～999.9A/±3%rdg±8dgt DC Current (DCA)/0～±600A/±1.5%rdg±6dgt DC Current (DCA)/±600.1～±999.9A/±3%rdg±6dgt AC Voltage (ACV)/0～500V/±1.0%rdg±8dgt DC Voltage (DCV)/0～500V/±1.0%rdg±6dgt Resistance (Ω)/0～600Ω/±1.5%rdg±8dgt | (23℃±5℃, 80%RH or less) Range/Resolution/Accuracy AC 40A/0.01A/±1.5%rdg±5dgt(50/60Hz) AC 400A/0.1A/±1.5%rdg±8dgt(50/60Hz) DC 40A/0.01A/±1.5%rdg±3dgt DC 400A/0.1A/±1.5%rdg±5dgt AC 60V/600V/0.01V/±1.0%rdg±8dgt DC 60V/600V/0.01V/±1.0%rdg±6dgt 1000Ω/0.1Ω/±1.5%rdg±8dgt | (23℃±5℃ 80%RH or less) AC Current (ACA) 0～300A:±2%rdg±8dgt AC Voltage(ACV) 0～500V:±2.3%rdg±6dgt DC Voltage (DCV) 0～500V:±1.3%rdg±3dgt Resistance (Ω) 0～3000Ω:±2%rdg±5dgt | |||
| Jaw opening capability | 30mmφ | 40mmφ | ||||
| AC Conversion | Average sensing rms reading | True rms responding | Average sensing rms reading | |||
| Safety standard | IEC61010-1, IEC61010-2-032 Installation CategoryⅡ 600V or CategoryⅢ 300V | IEC61010-1, IEC61010-2-032 Installation CategoryⅡ 600V or CAT Ⅲ 300V | IEC61010-1, IEC61010-2-032 Installation CategoryⅡ 600V or CategoryⅢ 300V | |||
| E.M.C. standard | EN 61326 | EN 61326 | EN 50081-1 and EN 50082-1 | |||
| Display | 4 digit LCD max. reading of 9999 | 3.5 digit LCD max. reading of 3999 | 3.5 digit LCD max. reading of 3200 | |||
| Sampling time | 2 times/sec | |||||
| Measuring method | Dual slope integration mode | |||||
| Crest factor | - | < 2.5 | - | |||
| Max. memory function | "Max" mark on LCD with max. value | - | - | |||
| Min. memory function | "Min" mark on LCD with min. value | - | - | |||
| Over range indication | "OL" mark on LCD | |||||
| Data hold indication | "DH" mark on LCD | |||||
| Low battery indication | "B" mark on LCD | |||||
| Auto power off | Approx. 10 minutes later after power on | |||||
| Polarity | "-" sign for negative polarity | |||||
| DC current zero offset | By push button switch | |||||
| Withstanding Voltage | AC 3700V 1 minute max. (Between the core of CT and outer case) | |||||
| Limitation of circuit voltage | Less than AC/DC 600V | Less than AC 500V | ||||
| Storage Temperature | -10℃ ～ 60℃ < 70%RH ( without condensation ) | |||||
| Operating Temperature | 0℃ ～ 40℃ < 80%RH ( without condensation ) | |||||
| Power supply | LR-44×2 | 1.5V (AM-4, LR03 or AAA)×3 | SR-44(1.55V)×2 or LR-44×2 | |||
| Power consumption | Approx. 12mW | Approx. 9mA | 5mW | |||
| Battery life | Approx. 6 hours continuous | Approx. 90 hours continuous | SR-44(200 hours), LR-44(100 hours) | |||
| Weight | Approx. 95g | Approx. 135g | Approx. 100g | |||
| Size | 44.5(W)×177(H)×24(D)mm | 45(W)×180(H)×24(D)mm | 64(W)×193(H)×24(D)mm | |||
| Accessories | Soft case:1 Instruction manual:1 Test lead:1 Batteries LR-44(1.55V):2 | Soft case:1 Instruction manual:1 Test lead:1 Batteries:2 | Soft case:1 Instruction manual:1 Test lead:1 Batteries LR-44(1.55V):2 | |||
