ETCR3000B Digital Earth Resistance Soil Resistivity Tester Meter✦Kd

Description

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I．
Introduction
ETCR3000B Earth Resistance Soil Resistivity Tester is specially designed and manufactured for measuring earth resistance, soil resistivity, earth voltage, AC voltage. Adopting the latest digital and micro-processing technology, precise 4-pole, 3-pole and simple 2-pole method for earth resistance measurement, importing FFT and AFC technology, with a unique function of anti-interference capability and the ability to adapt to the environment, consistency of repeat testing, to ensure high precision, high stability and reliability for prolonged measure, which is widely used in electric power, telecommunications, meteorology, oil field, construction, lightning protection, industrial electrical equipment and other earth resistance, soil resistivity, earth voltage, AC voltage measurement.
ETCR3000B Earth Resistance Soil Resistivity Tester is composed of host machine, monitoring software, testing wires, auxiliary ground pillars, communication wires and others. The large LCD display of host machine is with blue 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 like historical data access, reading, preservation, report forms, printing and so on.
II．Technical Specifications
1. Base Conditions and Working Conditions
Influence Quantity
Base Condition
Working Conditions
Remark
Ambient Temp
23℃±1℃
-10℃-40℃
----
Ambient Humidity
40%-60%
＜80%
----
Working Voltage
9V±0.1V
9V±1.5V
rC、rP
Auxiliary Earth Resistance
＜100Ω
＜30kΩ
----
I
nterference
Voltage
no
＜20V
----
I
nterference
Current
no
＜2A
Electrode Distance when measuring R
a＞5d
a＞5d
----
Electrode Distance when measuring ρ
a＞20h
a＞20h
----
2. General Specification
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 rods: Φ10mm×150mm
Measuring Rate
Earth voltage: 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)
Line 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 Access
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(100
R
+
rC
<50kΩ, 100
R
+
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)
WorkingTemperature & 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
3. Intrinsic error and performance indicators under base conditions
Category
Measurement
Range
Intrinsic Error
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
According to the precision of R
(ρ=2πaR
a:1 m-100m,
π=3.14)
0.01Ωm
100.0Ωm-999.9Ωm
0.1Ωm
1000Ωm-9999Ωm
1Ωm
10.00kΩm-99.99kΩm
10Ωm
100.0kΩm-999.9kΩm
100Ωm
1000kΩm-9000kΩm
1kΩm
Earth Voltage
AC 0.0-600V
±2%rdg±3dgt
0.1V
III
．
Accessories
Tester
1 PC
Tester Bag
1 PC
Auxiliary Earthing Rod
4 PCS
Standard testing Wire
4 wires: each for red 20m, black 20m, yellow 10m, and green 10m
Simple testing Wire
2 wires: each for red 1.6m and black 1.6m
Zinc-manganese Dry Battery
6 PCS (R14S 1.5V)
Monitoring Software Disk
1 Copy
RS232 Communication Cable
1 PC
Manual/Warranty Card/Qualification Certificate
1 Copy
Shipping
Payment
Return
Feedback
About us
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