NR3571 Ground Resistance Tester applies to measure ground resistance of various devices and low resistance conductor resistance in electricity, telecommunications, railways, telecommunications, mining and other sectors; This tester also can measure soil resistivity and ground voltage.
Overview
Product Introduction
NR3571 Ground Resistance Tester applies to measure ground resistance of various devices and low resistance conductor resistance in electricity telecommunications railways telecommunications mining and other sectors; This tester also can measure soil resistivity and ground voltage.
Product Characteristic
● Adopt high strength aluminum alloy case in order to prevent power frequency and radio frequency interference it uses phase-locked loop synchronously tracking detecting method and also equip with switching capacity filter that make the tester with high anti-jamming capability.
● Adopt DC / AC conversion technology change DC to AC low frequency constant current in order to measure.
● Allow the earth resistance changing between 0~2KΩ (RC) and 0~40KΩ (RP) it does not affect the measured result.
● No need to regulate balance artificially 3(1/2) bit LCD display not only can measure the earth resistance but also can measure low resistance conductor resistance earth resistivity and AC earth voltage.
● If measure the test loop fails the meter shows "1" means overflow that conform to the standard habit of measurement.
Models
| Operation condition | Temperature:0℃ ~ +45℃ |
| Relative humidity: ≤ 85%RH | |
| Measurement range and constant current value (Valid value) | Resistance: 0 ~ 2Ω (10mA) 2 ~ 20Ω (10mA) 20 ~ 200Ω (1mA) |
| Voltage: AC 0 ~ 30V | |
| Measurement accuracy |
0 ~0.2Ω ≤ ±3%±1d 0.2Ω ~ 200Ω ≤ ±1.5%±1d 1 ~ 30V ≤ ±3%±1d |
| Measurement resolution | 0.001Ω 0.01Ω 0.1Ω 0.01V |
| Auxiliary grounding resistance and error caused by grounding voltage |
· Allowed auxiliary grounding resistance RC (between C1 and C2) < 1.8KΩ;
RP (between P1 and P2) < 40KΩ Error ≤ ±5%
· Allowed grounding voltage ≤ 5V (power frequency valid value) error ≤ ±5%
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| Power and power consumption | Max power consumption ≤ 2W |
|
Power supply: 6.8V ~ 9V (7 sections of 5# rechargeable battery packs); external power: AC 220V. |
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| Dimension and weight | Dimension: 230×210×125mm (L*W*H) |
| Weight: ≤ 2kg. |
