Earth Ground Resistance Detector Soil Resistivity Tester 30kΩ 9000kΩm Data hold

Description

Earth Ground Resistance Detector Soil Resistivity Tester 30kΩ 9000kΩm Data hold
Instruction:
ETCR3100C Earth Resistance Soil Resistivity Tester is specially designed and manufactured for on-site measurement of earth resistance, soil resistivity, earth voltage, AC voltage. Apply digital processing technology, precision 4-wire method, 3-wire method and simple 2-wire method to measure grounding resistance; Adopt FFT (fast Fourier transform) technology, AFC (automatic frequency control) technology, automatic identification of interference and selection of measurement frequency, to minimize the impact of interference, provide more accurate earth resistance value. With unique anti-interference ability and environmental adaptability, high repeated test consistency, ensuring high precision, high stability and high reliability for long-term measurement.The tester case is made of waterproof protection box, anti-collision, anti-drop, waterproof (protection grade IP65), strong and durable, and also equipped with a large-capacity rechargeable lithium battery pack, especially suitable for outdoor construction.Widely used in power, telecommunications, meteorology, oil fields, construction, lightning protection and industrial electrical equipment, such as grounding resistance, soil resistivity, grounding voltage, AC voltage.
ETCR3100C Earth Resistance Soil Resistivity Tester is composed of host machine, monitoring software, testing wires, auxiliary ground pillars, communication wires etc. The large LCD display of host machine, with white backlight and bar graph indicating that can be seen clearly. At the same time it can store 300 sets of data, fulfilling historical inquiry and online real-time monitoring through monitoring software, dynamic display, alarm indicator, and with the functions as historical data access, reading, preservation, report forms, printing and so on.
ETCR3100C Earth Resistance Soil Resistivity Tester also named: Precision Earth Resistance Tester, 4-pole Earth Resistance Tester, 2/3/4-pole Earth Resistance Tester, Soil Resistivity Tester.
Product Characteristics
1. 2/3/4-pole method measure earth resistance,Range
：
0.00Ω
～
30.00kΩ
；
2. Soil resistivity measurement, Range
：
0.00Ωm
～
9000kΩm
；
3. Earth voltage measurement,Range
：
AC 0
～
600V
4. Data storage: 300 sets
5. Alarm function: audible and visual alarm
Reference Conditions And Working Conditions
Influence Constant
Base Condition
Working Conditions
Remark
Ambient Temp
23
℃
±1
℃
-10
℃
-40
℃
----
Ambient Humidity
40%-60%
＜
80%
----
Working Voltage
DC 7.8V±0.1V
DC 7.8V±0.6V
---
Auxiliary Earth Resistance Value
＜
100Ω
＜
30kΩ
rC
、
rP
InterferenceVoltage
Non
＜
20V
----
InterferenceCurrent
Non
＜
2A
----
Electrode Distance of measuring R
a
＞
5d
a
＞
5d
----
Electrode Distance of measuring ρ
a
＞
20h
a
＞
20h
----
Technical Specifications
Function
2/3/4-pole measurement for earth resistance, soil resistivity, earth voltage, AC voltage
Power Supply
DC 7.4V 2600mAh rechargeable lithium battery, full of about 8.4V
Measurement Range
Earth Resistance: 0.00Ω-30.00kΩ
Soil Resistivity: 0.00Ωm-9000kΩm
Earth Voltage: 0V
～
600V
Measurement Mode
Precise 4-pole measurement, 3-pole measurement, simple 2-pole measurement of earth resistance
Measurement Method
Earth Resistance: rated current change-pole method, test current 20mA Max
Soil Resistivity: 4-pole method (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
1m-100m
Shift
Earth resistance: 0.00Ω-30.00kΩ automatic shift
Soil Resistivity: 0.00Ωm-9000kΩm automatic shift
Backlight
Controllable white screen backlight, suitable for dim places
Display Mode
4-digital super-large LCD display, white screen backlight
Measurement Indicator
During measurement, LED flash indicator, LCD count down display, progress bar indicator
LCD Frame Dimension
128mm×75mm
LCD Window Dimension
124mm×67mm
Meter Dimension
280mm(L)×260mm(W)×160mm(H)
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 Ground Rod
4 wires: Φ10mm×150mm
Measurement Rate
Voltage to earth: about 3 times/second
Earth resistance, soil resistivity: about 15 seconds/time
Measuring Times
Over 5000 times (Short-circuit test, interval time should be at least 30 seconds)
Circuit Voltage
below AC 600V
Communication Interface
USB interface, software monitoring, storage data can be uploaded to computer, saved or printed.
Communication Wire
One piece USB communication wire, length 1.5m
Data Storage
300 sets, “MEM” symbol storage indicator, flash display “FULL” symbol indicate storage full
Data Hold
Data hold function: “HOLD” symbol display
Data Read
Data read function: “READ” symbol display
Overflow Display
Over range overflow function: “OL” symbol display
Interference Test
Recognize interference signal automatically, “NOISE” symbol display when interference voltage exceed 5V
Auxiliary Ground Test
With auxiliary earth resistance test function, 0.00KΩ-30kΩ(100R+rC<50kΩ, 100R+rP<50kΩ)
Alarm Function
Measurement value exceeds alarm setting value, will “Toot-toot-toot” alarm hint
Auto-shut off
Automatically shut down after 10 minutes of power on
Battery Voltage
While battery voltage decreases to around 7.2V±0.1V, will display battery voltage low symbol“   ”, and reminding to charge
Working Power
Standby: about 20mA (Backlight shut off)
Boot up and with backlight: about 45mA (25mA without backlight)
Measurement: about 100mA (Backlight shut off)
Weight
Tester: 2290g
Tester bag:915g
Test wires: 1560g
Auxiliary ground 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
Protection Level
IP65(close the case)
Insulation Resistance
Over 20MΩ (between circuit and enclosure it is 500V)
Withstand 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
Intrinsic error and performance indicators under base conditions
Measurement Function
Measurement Range
Accuraccy
Resolution
Earth Resistance (R)
0.00Ω
～
30.00Ω
±2%rdg±3dgt
0.01Ω
30.0Ω
～
300.0Ω
±2%rdg±3dgt
0.1Ω
300Ω
～
3000Ω
±2%rdg±3dgt
1Ω
3.00kΩ
～
30.00kΩ
±4%rdg±3dgt
10Ω
Soil Resistivity(ρ)
0.00Ωm
～
99.99Ωm
(ρ=2πaR  a:1 m
～
100m
；
π=3.14)
0.01Ωm
100.0Ωm
～
999.9Ωm
0.1Ωm
1000Ωm
～
9999Ωm
1Ωm
Soil Resistivity (ρ)
10.00kΩm
～
99.99kΩm
(ρ=2πaR  a:1 m
～
100m
；
π=3.14)
10Ωm
100.0kΩm
～
999.9kΩm
100Ωm
1000kΩm
～
9000kΩm
1kΩm
Earth Voltage
AC 0.0
～
600V
±2%rdg±3dgt
0.1V
Packing:
Meter
1 PCS
Meter Bag
1 PCS
Auxiliary Grounding Rod
2 PCS
Monitoring sortware CD
1 COPY
USB Communication Cable
1 PCS
Test Wires
4 PCS
Simple Test Wires
2 PCS
Special Charger
1 PCS
Manul/Warranty Card/Certificate
1 SET