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東莞市宏圖儀器有限公司
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東莞市宏圖儀器有限公司
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BasicInfo
HT3001 Soil resistivity grounding resistance tester
I. Product Introduction
HT3001 soil resistivity grounding resistance tester, also called the soil resistivity tester, is a commonly used instrument for measuring commonly used grounding resistance meters.
II. Technical Specification
1.Range and Accuracy error
| Measurement function | Measurement range | Accuracy | Resolution |
| Grounding resistance (R) | 0.00Ω~30.00Ω | ±2%rdg±5dgt (remark 1) | 0.01Ω |
| 30.0Ω~300.0Ω | ±2%rdg±3dgt | 0.1Ω | |
| 300Ω~3000Ω | ±2%rdg±3dgt | 1Ω | |
| 3.00kΩ~30.00kΩ | ±2%rdg±3dgt | 10Ω | |
| Soil resistivity (ρ)
| 0.00Ωm~99.99Ωm | ρ=2πaR (remark 2) | 0.01Ωm |
| 100.0Ωm~999.9Ωm | 0.1Ωm | ||
| 1000Ωm~9999Ωm | 1Ωm | ||
| 10.00kΩm~99.99kΩm | 10Ωm | ||
| 100.0kΩm~999.9kΩm | 100Ωm | ||
| 1000kΩm~9999kΩm | 1kΩm | ||
| Grounding voltage | AC 0.00~100.0V | ±2%rdg±3dgt | 0.01V |
Remark:
1. Reference conditions: accuracy with Rh Rs < 100Ω.
Working conditions:Rh max=3kΩ+100R<50kΩ;Rs max=3kΩ+100R<50kΩ
2.Depends on the measurement accuracy of R,π=3.14, a:1 m~100m
2.General specification
| Function | Two three four-wire measure grounding resistance, soil resistivity; Ground voltage, AC voltage measurement |
| Range | Grounding resistance: 0.00Ω~30.00kΩ |
| Soil resistivity: 0.00Ωm~9999kΩm | |
| Grounding voltage: 0.00V~100.0V | |
| measurement mode | Precise four-wire, three-wire measurement, simple two-wire measurement |
| Measurement methods | Grounding resistance: rated current change pole method Soil resistivity: four-pole method Ground Voltage: Average Rectification(between S-ES interface) |
| Test frequency | 128Hz |
| Short circuit test current | > 20mA (Sine Wave) |
| Open circuit test voltage | AC 28V max |
| Electrode spacing range | Can be set 1m ~ 100m |
| Change gear | fully automatic shifting 0.00Ω ~ 30.00kΩ |
| fully automatic shifting 0.00 Ωm~9000kΩm | |
| Backlight | Controllable gray screen backlight, suitable for use in dim places |
| Display mode | 4-bit large LCD display, gray screen backlight |
| Measurement instructions | LED flashing indicator during measurement |
| LCD size | 111mm×68mm |
| LCD display field | 108mm×65mm |
| Instrument size | L/W/H:277.2mm×227.5mm×153mm |
| Standard test line length | 4 strips:red 15m,black 15m, yellow 10m,green 10m each one |
| Simple test line | 2strips:yellow 1.6m,green 1.6m each one |
| Auxiliary Grounding rod | 4PCS:φ10mm×200mm |
| Power consumption | Standby: 40mA Max(Backlight off) |
| Turn on backlight: about 43mA | |
| measuring:75mA Max(Backlight off) | |
| Weight | Instrument: 2450(including battery) |
| Test lines:1300g | |
| Auxiliary grounding rod: 850g(4PCS) | |
| Working temperature and humidity | -10oC~40oC;below 80%rh |
| Storage temperature and humidity | -20oC~60oC;below 70%rh |
| Overload protection | Grounding resistance:AC 280V/3 seconds between H-E and S-ES ports |
| Insulation resistance | More than20MΩ(500V between circuit and housing) |
| Pressure resistance | AC 3700V/rms(between circuit and housing) |
| Electromagnetic properties | IEC61326(EMC) |
| Suitable for safety regulations | IEC61010-1(CAT 300V,CAT IV 150V,pollution level 2); IEC61010-031; IEC61557-1(grounding resistance); IEC61557-5(soil resistivity); JJG 366-2004. |
III. Accessories
| Instrument | 1PC |
| Instrument Box | 1PC |
| Auxiliary grounding rod | 4PCS |
| Standard test line | 4 Strips(red 15m;yellow 10m;green 10m;black 15m, each one) |
| Simple test line | 2 Strips(yellow 1.6m;green 1.6m) |
| 6VLead-acid battery (internal) | 1PC |
| Charger | 1PC |
| Monitoring software CD | 1PC |
| USB communication line | 1PC |
| Manual, certificate | 1SET |
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