- Model NO.: L747 HZRC300
- Control: Manual Control
- Power Source: 6VDC 4 PCS of AA Alkaline Batteries
- Measuring Voltage Range: 15V/100V/300V/600V
- Measuring Capacitance Range: 40Hz~100kHz
- Trademark: Huadian
- Origin: Dongguan China
- Display: Digital
- Weight: 1160g
- Measuring Current Range: 0.0--20.0
- Measuring Resistance Range: 0.01--1200
- Measuring Inductance Range: 9.999Hz~9.999MHz
- Transport Package: Carton Box with Foam Inside
- HS Code: 9030339000
Clamp On 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. 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; Clamp Earth Resistance Tester measures the integrated value of ground resistance and resistance lead.
1.Main Technical Specifications
| Resistance Range | 0.01-1200Ω |
Resistance Resolution |
0.001Ω |
Highest Resistance Accuracy |
±1%±0.01Ω |
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 |
-20°C-55°C;20%RH-90%RH |
LCD Screen |
4 Digits LCD display, Screen L×W: 47mm×28.5mm |
Clamp Size |
65mm×32mm |
Tester Weight |
1160g (With batteries) |
| Â Clamp Dimension |
 L×W×T: 285mm×85mm×56mm |
| Â Protection Level |
 Dual Insulation |
| Â Structural Feature |
 Clamp CT |
| Â Shifting |
 Automatic shifting |
| Â External magnetic field |
 <40A/m |
| Â External electrical field |
 <1V/m |
| Â Single measurement time |
 0.5 second |
| Â Resistance measurement frequency |
 >1KHz |
| Â Measured current frequency |
 50/60Hz Automatic measurement |
| Â Low Battery Indication |
 Low battery symbol displays when battery is lower then 5.3V |
| Â Memory Full Indication |
 MEM symbol blinks when all 99 sets memory is full |
| Â Over Range Indication |
 Out of range indication "OLΩ", "L0.01" or "OL A" |
| Â Auto Power-off |
 5 minutes after Boot up |
| Â Power Consumption |
 Max 50mA either in booting up or normally working, Continuously working for 30 hours |
| Â RS232 Interface (Optional) |
 The data stored in the meter are uploaded to the computer through RS232 interface and data wire, Then generate report files |
| Â Safety Provisions |
 IEC1010-1, IEC1010-2-032, Pollution level 2, CAT III(600V) |
| Â Accessories |
 Meter: 1 piece, Test ring: 1 Piece, Meter Suitcase: 1 Piece |
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