High Accurate Digital earth Soil Resistivity Test Meter

Features: 2, 3, 4 wire measurement of grounding resistance, soil resistivity; grounding voltage, AC voltage measurement
Power source: DC 9V (zinc-manganese dry battery R14S 1.5V 6 knots, continuous standby 300 hours)
Range: Grounding resistance: 0.00Ω~30.00kΩ Soil resistivity: 0.00Ωm~9000kΩm
Measurement method: precision 4-wire, 3-wire method measurement, simple 2-wire measurement grounding resistance
Measurement methods:
Grounding resistance: rated current pole method, measuring current 20mA Max
Soil resistivity: quadrupole method (Wenner method)
Ground voltage: average rectification (between P(S)-ES interfaces)
Test frequency: 128Hz/111Hz/105Hz/94Hz (AFC)
Short circuit test current: AC 20mA max
Open circuit test voltage: AC 40V max
Test voltage waveform: sine wave
Electrode spacing range: can be set from 1m to 100m
Shift: Grounding resistance: 0.00Ω~30.00kΩ fully automatic shifting
Soil resistivity: 0.00Ωm~9000kΩm automatic shifting
Display mode: 4-digit large LCD display, blue screen backlight
Measurement indication: LED flashing during measurement, LCD countdown, progress bar graph indication
LCD size: 128mm × 75mm
Standard test line: 4: red 20m, black 20m, yellow 10m, green 10m each 1
Simple test line: 2: red 1.6m, black 1.6m each 1
Auxiliary grounding rod: 4: φ10mm × 150mm
Ground voltage: about 3 times / sec
Grounding resistance, soil resistivity: about 5 seconds / time
Number of measurements: 5000 or more (short circuit test, 1 test, 30 seconds stop)
Line voltage: measured below AC 600V
RS232 interface: RS232 interface, software monitoring, storage data can be uploaded to the computer, save printing
Communication line: 1 RS232 communication line, 1.5m long
Data storage: 300 groups, "MEM" stores indications, displays "FULL" symbol indicates storage is full
Alarm function: When the measured value exceeds the alarm set value, the “beep--beep--beep--” alarm prompt