Technical parameters
Conditions | The environment temperature | 0℃～+45℃ |
Relative humidit | ≤85%RH | |
Measuring range and constant current (RMS)) | Resistance | 0～2Ω(10mA)，2～20Ω(10mA)，20～200Ω(1mA) |
Voltage | AC0～19.99V | |
Measurement accuracy and resolution | Precision | 0～0.2Ω≤±3%±1d |
0.2Ω～199.9Ω≤±1.5%±1d | ||
1～19.99V≤±3%±1d | ||
Resolution | 0.001Ω、0.01Ω、0.1Ω、0.01V | |
Measurement error caused by auxiliary grounding resistance and ground voltage | Allow auxiliary grounding resistance | RC(Between C1 and C2) |
0～2Ω，2～20Ω≤1kΩ | ||
20～200Ω≤2kΩ | ||
RP( Between P1 and P2) < 40kΩ，error≤±5% | ||
Allowable ground voltage (effective value of power frequency) | ≤5V，error≤±5% | |
Power and power consumption | Maximum power loss | ≤2W |
DC | 8×1.5V(AA，R6)Battery | |
AC | 220V/50Hz | |
Volume and Weight | Dimensions | 220×200×105mm3 |
Weight | ≤1.4kg |
Nickname：Ground Resistance meter; Earth Resistance Meter
Features
1、The grounding resistance measuring instrument is constructed with high-strength aluminum alloy as the casing. In order to prevent industrial frequency and rf interference, the phase-locked loop synchronous tracking and detection mode is adopted on the circuit, and the switch capacitor filter is equipped to make the instrument have better anti-interference ability.
2、DC/AC conversion technology is adopted to convert DC into AC low-frequency constant current for easy measurement.
3、 Allow auxiliary grounding resistance of 0 ~ 1.8kω (RC), 0 ~ 40KΩ (RP) shall not affect the result of measurement.
4、the grounding resistance measuring instrument does not need manual adjustment and balance, 3(1/2) position LCD display, in addition to measuring the earth resistance, but also can measure low resistance conductor resistance, soil resistivity and ac voltage. If the test circuit does not display &ldquo on the header; 1 & throughout; Stands for overflow, in line with conventional measurement habits.
