High Accuracy clamp meter Earth Resistance Tester
Introduction
Clamp Earth Resistance Tester is widely applied in ground resistance measurement, loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil field, architecture and industrial electrical equipment, etc. When measuring ground system with loop, there is no need to disconnect the ground wire without auxiliary electrode, which means safer and faster. ETCR Clamp Earth Resistance Tester can measure the ground fault which can not be measured by traditional method, can apply in the occasion where traditional methods are unworkable; ETCR Clamp Earth Resistance Tester measures the integrated value of ground resistance and resistance lead.
new Clamp Earth Resistance Tester is another perfect upgrade on old models. The performance contrast of new and old products shows below:
| Items | 2000 (Old Type) | 2000+ (New Type) |
| Boot Time | Self-test needs 6 seconds,long boot time may easily result in boot error. | Self-test in 0.5 second, boot instantly |
| Measuring Range | 0.01-1000Ω | 0.01-1200Ω, Wider range |
| Stored Data | 30 sets | 99 sets |
| Beep Alarming | No | Yes |
| Interference Identification | No | With beeps and NOISE symbol blinking. Strong anti-interference ability. |
| RS232 Interface | No | RS232 interface Available |
| Power Consumption | 100mA, Maximum 100mA | Maximum 50mA, Longer battery life |
| Meter Appearance | Heavy machine, Rough appearance, Hard operation | Fine appearance, More fixed structure, Easy operation |
| Battery Cover | No screws, Easy to result in accident hidden trouble due to battery off. | With fastening screws, Secure, Reliable, Easy battery replacement |
Technical Specifications
| Function | Ground resistance test, Loop resistance test |
| Power Supply | 6VDC 4 PCS of AA Alkaline batteries |
| Resistance Range | 0.01-1200Ω |
| Resistance Resolution | 0.001Ω |
| Highest Resistance Accuracy | ±1%±0.01Ω |
| Data memory | 99 Sets |
| Alarm Threshold Setting Range | Resistance: 1-199Ω |
| Alarm Sound and Light | "Beep-beep-beep" alarm tone, Alarm Symbol Flashing, Press AL key to turn on, turn off Alarm or set Alarm Threshold. |
| Interference Signal Recognition | "Beep-beep-beep" tone, NOISE symbol blinking |
| Working Temperature and Humidity | -20ºC-55ºC;20%RH-90%RH |
| LCD Screen | 4 Digits LCD display, Screen L×W: 47mm×28.5mm |
| Clamp Size | 65mm×32mm |
| Clamp Opening Extent | 32mm |
| Tester Weight | 1160g (With batteries) |
| Clamp Dimension | L×W×T: 285mm×85mm×56mm |
| Protection Level | Dual Insulation |
| Structural Feature | Clamp CT |
| Shifting | Automatic shifting |
| External magnetic field | <40A/m |
| External electrical field | <1V/m |
| Single measurement time | 0.5 second |
| Resistance measurement frequency | >1KHz |
| Measured current frequency | 50/60Hz Automatic measurement |
| Low Battery Indication | Low battery symbol displays when battery is lower then 5.3V |
| Memory Full Indication | MEM symbol blinks when all 99 sets memory is full |
| Over Range Indication | Out of range indication "OLΩ", "L0.01" or "OL A" |
| Auto Power-off | 5 minutes after Boot up |
| Power Consumption | Max 50mA either in booting up or normally working, Continuously working for 30 hours |
| RS232 Interface (Optional) | The data stored in the meter are uploaded to the computer through RS232 interface and data wire, Then generate report files |
| Safety Provisions | IEC1010-1, IEC1010-2-032, Pollution level 2, CAT3 (150V) |
| Accessories | Meter: 1 piece, Test ring: 1 Piece, Meter Suitcase: 1 Piece |
