FUZRR ES3001, Manual

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Grounding
Voltage
AC 0.00 ～ 100.0V ± 2%rdg ± 3dgt 0.01V
Remark ：
1. Reference conditions: accuracy with Rh Rs < 100 Ω。
Working conditions:Rh max ＝ 3k Ω +100R ＜ 50k Ω； Rs max ＝ 3k Ω +100R ＜ 50k Ω
2.Depends on the measurement accuracy of R, π =3.14, a:1 m ～ 100m ；
IV
．
Technical Specifications
Function
Two three four-wire measure grounding resistance, soil
resistivity;
Ground voltage, AC voltage measurement
Ambient
temperature and
humidity
23 ℃± 5 ℃， below 75%rh
Power
DC 6V 4.5Ah lead-acid battery lasts more than 100 hours
standby
Interference
voltage
<20V (should be avoided)
Interference
current
<2A (should be avoided)
Measure R
electrode
spacing
a ＞ 5d
Measured
electrode
spacing
a ＞ 20h
Auxiliary ground
resistance
Reference condition <100 Ω , working condition <5k Ω
Range
Grounding resistance: 0.00 Ω～ 30.00k Ω
Soil resistivity: 0.00 Ω m ～ 9999k Ω m
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)