Huazheng HZRC3000B 接地抵抗 土壌抵抗率計 (0.00Ω-30.00kΩ)

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