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Ambient Temp
Base Condition: 23℃±1℃
Working Conditions: -10℃-40℃
Ambient Humidity
Base Condition: 40%-60%
Working Conditions: <80%
Working Voltage
Base Condition: 9V±0.1V
Working Conditions: 9V±1.5V
Remark: rC,rP
Auxiliary Earth Resistance
Base Condition: <100Ω
Working Conditions: <30kΩ
Interference Voltage
Working Conditions: <20V
Interference Current
Working Conditions: <2A
Electrode Distance when measuring R
Base Condition: a>5d
Working Conditions: a>5d
Electrode Distance when measuring ρ
Base Condition: a>20h
Working Conditions: a>20h
Function: Measurement of 2/3/4-pole earth resistance, soil resistivity, earth voltage, AC voltage
Power Supply: DC 9V(Zi-Mn dry battery R14S 1.5V 6 PCS, continuous standby for 300 hours )
Measurement Range:
Earth Resistance: 0.00Ω-30.00kΩ
Soil Resistivity: 0.00Ωm-9000kΩm
Measuring Mode: Precise 4-pole measurement, 3-pole measurement, simple 2-pole measurement
Measuring Method:
Earth Resistance: rated current change-pole method, measurement current 20mA Max
Soil Resistivity: 4-pole measurement (Wenner method)
Earth Voltage: average rectification(between P(S)-ES)
Test Frequency: 128Hz/111Hz/105Hz/94Hz(AFC)
Short-circuit Test Current: AC 20mA max
Open-circuit Test Current: AC 40V max
Test Voltage Wave: Sine wave
Electrode Distance Range: Can be set 1m-100m
Shift:
Earth resistance: 0.00Ω-30.00kΩ, automatic shift
Soil Resistivity: 0.00Ωm-9000kΩm, automatic shift
Backlight: Blue screen backlight, suitable for dim places
Display Mode: 4-digital super-large LCD display, blue screen backlight
Measuring Indicator: During measurement, LED flash indicator, LCD count down display, progress bar indicator
LCD Frame Dimension: 128mm×75mm
LCD Window Dimension: 124mm×67mm
Dimension L×W×H: 215mm×190mm×95mm
Standard Test Wire: 4 wires: each for red 20m, black 20m, yellow 10m, and green 10m
Simple Test Wire: 2 wires: each for red 1.6m and black 1.6m
Auxiliary Earthing Rod: 4 wires: Φ10mm×150mm
Measuring Rate:
Voltage to ground: about 3 times/second
Earth resistance, soil resistivity: about 5 seconds/time
Measuring Times: Over 5000 times (Short-circuit test, interval time should be at least 30 seconds)
Circuit Voltage: below AC 600V
RS232 Interface: Possess RS232 interface, software supervision storage data can be uploaded to computer, saved or printed.
Communication Wire: One piece of RS232 communication wire, with length 1.5m
Data Storage: 300 sets, “MEM” icon storage indicator, flash display “FULL” icon to indicate storage is full
Data Hold: Data hold function: “HOLD” icon display
Data Read: Data read function: “READ” icon display
Overflow Display: Exceeding measuring range overflow function: “OL” icon display
Interference Test: Recognize interference signal automatically, “NOISE” icon display when interference voltage exceed 5V
Auxiliary Earthing Test: Can measure auxiliary earth resistance, 0.00KΩ-30kΩ(100R+rC<50kΩ, 100R+rP<50kΩ)
Alarm Function: When measuring value exceeds alarm setting value, there is “Toot-toot-toot” alarm hint
Battery Voltage: When battery voltage decreases to about 7.5V, battery voltage low icon will display, reminding to replace battery.
Power Consumption:
Standby: about 20mA (Backlight shut off)
Boot and with backlight: about 45mA (25mA without backlight)
Measurement: about 100mA (Backlight shut off)
Weight:
Total weight: 4.5kg (including package)
Tester: 1443g (including battery)
Tesing wires: 1560g
Auxiliary earthing rods: 935g (4pcs)
Working Temperature & Humidity: -10℃-40℃, below 80%rh
Storage temperature & humidity: -20℃-60℃, below 70%rh
Overload Protection: Measuring earth resistance: between each interfaces of C(H)-E、P(S)-ES, AC 280V/3 seconds
Insulation Resistance: Over 20MΩ (between circuit and enclosure it is 500V)
Withstanding Voltage: AC 3700V/rms (Between circuit and enclosure)
Electromagnetic Features: IEC61326(EMC)
Protection Type:
IEC61010-1 (CAT Ⅲ 300V、CAT IV 150V、Pollution 2),
IEC61010-031, IEC61557-1 (Earth resistance),
IEC61557-5 (Soil resistivity), JJG 366-2004
