Digital Earth Ground Resistance Tester Meter With Print Storage Data

Description

Digital Earth Ground Resistance Tester Meter With Print Storage Data
Introduction
ETCR3000C Digital Earth Resistance Tester is elaborately designed and manufactured for the field measurement of grounding resistance, adopting digital and microprocessor technology, precision 3-wire or  simple 2-wire method to measuring grounding resistance, with unique line resistance verify function, anti-interference ability and environment adaptability, to ensure that long time measurement of high precision, high stability and reliability, 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, which widely used in grounding resistance measurement of electric power, telecommunications, meteorology, oil fields, construction, lightning protection and industrial electrical equipment etc.
ETCR3000C Digital Earth Resistance Tester with unique line resistance verify function, which can measure the low value of ground resistance in the field more accurately and avoid the error caused by the change of the line resistance in long time usage; can avoid errors caused by the test wire incomplete insertion into instrument interface or bad contact; can avoid the error caused by changing or lengthening the test wire.
ETCR3000C Digital Earth Resistance Tester is composed of host machine, data software, test wires, auxiliary ground rod, and communication wires and so on. It can store 400 sets of data in totally, through the monitoring software to relize historical access and online real-time monitoring functions, dynamic display, with maximum, minimum, average value indication,alarm value setting and alarm indicating function, with historical data reading, accessing, saving, reporting, printing and other functions
Measurement Range and Accuracy
Measurement Function
Range
Accuracy
Resolution
Earth Resistance
0.01Ω
～
20Ω
±2%rdg±3dgt
0.01Ω
0.1Ω
～
200Ω
(Auxiliary grounding resistance 100Ω±5%, Votage to ground
＜
10V)
0.1Ω
1Ω
～
2000Ω
1Ω
Earth Voltage
0
～
600V AC
±2%rdg±3dgt
1V
（
Note
：
23℃±5℃
，
below75%rh
）
Reference Conditions And Working Conditions
Influence Constant
Base Condition
Working Conditions
Remark
Environmental Temperature
23℃±1℃
-10℃-40℃
----
Environmental Humidity
40%-60%
＜
80%
----
Working Voltage
DC 7.8V
±0.1V
DC 7.8V
±0.6V
---
Auxiliary Earth Resistance Value
＜
100Ω
＜
30kΩ
rC
、
rP
Interference Voltage
Non
＜
20V
----
Interference Current
Non
＜
2A
----
Electrode Distance of measuring R
a
＞
5d
a
＞
5d
----
Function
：
Measurement of grounding resistace,voltage to ground and low value resistance
Power Supply
：
DC 7.4V 2600mAh rechargeable lithium battery, full charge about 8.4V
Backlight
Controllable white screen backlight, suitable for use in dim places
Test Method
：
precision 3-wire or simple 2-wire measurement method
Measurement Method
Ground Resistance
：
rated current change-pole method, measure current 20mA Max;
Voltage to ground
：
Average rectification
Data Mode
：
Average value,maximum value, minimum value
Line Resistance Verify
Avoid errors caused by the test wire incomplete insertion into instrument interface or bad contactor replace lengthening the test wire etc. which can measure earth resistance more accuracy
Dispaly Mode:4 Digits large LCD display, white screen backlight
Measurement Indication
In measurement LED flashes indication, LCD count down indication
LCD Size: 128mm
×
75mm; Display area:124mmX67mm
Tester Dimension:280mm
×
260mm
×
160mm
Test Wire
3PCS: red 15m; yellow:10m; green 5mter
Simple Test Wire
2PCS: red 1.6m; black 1.6m
Auxiliary ground rod
2PCS:
φ
10mm
×
150mm
Measurement Time
Voltage to ground: about 3 seconds/times; grounding resistance: about 15 seconds/times
Measurement Times
above 5000 times (20
Ω
gear range measure 10
Ω
, measure time with 25 seconds as an interval
Line Voltage
:
Meausrement voltage to ground: below AC 600V
Communication Interface
With USB interface, software monitoring, storage data can upload to computer ,save and print
Communication Cable
USB communication cable 1PCS, 1.5m
Data Storage
:
400 sets, flashes display "FULL"symbol indicate that storage full
Data Hold
Data hold function: display "HOLD" symbol
Data Access
：
Data access function: display "READ" symbol
Overfolw Indication
：
Over range overflow function: display"OL" symbol
Alarm Indication
Measure Value exceed alarm setting value, "Toot-Toot-Toot" alarm indication
Battery Voltage
When power voltage lower than DC 7.2V
±
0.1V, display low power voltage symbol,and remind to replace battery
Working Current
Backlight
：
25mA Max
Standby
：
25mA Max(backlight close)
Measurement
：
200mA Max (backlight  close)
Weight
Tester:2290g
Test Wires: 847g (include simple test wires)
Auxiliary ground rod: 468g (2pcs)
Tester Bag: 915g
Working Environment
：
-10
℃
~40
℃；
below 80%rh
Store Environment
：
-20
℃
~60
℃；
below 70%rh
Protection Level
IP65(close the case)
Overload Protection
In meausrment of ground resistance
：
E-P
、
E-C AC 280V / 3 seconds between each terminal
Insulation Resistance
：
above 10M
Ω
(500V between circuit and outside shell)
Withstand Voltage
：
AC 3700V/rms(Between the circuit and the shell)
Electromagnetic characteristics
：
IEC61010-4-3
，
Wireless frequency electromagnetic field
≤
1V/m
Suitable Safty Standar
：
IEC61010-1
、
IEC1010-2-31
、
IEC61557-1,5
、
IEC60529(IP54)
、
Pollution 2
、
CAT
Ⅲ
300V
PAYMENT INFORMATION:
1.We can accept Credit Cards,Paypal,T/T,Escrow and so on.
2.The buyer is responsible for any tax and/or duty charged by their country.
INTERNATIONAL SHIPPING:
The package will be shipped by EUB DHL, FEDEX or EMS. After we shipped the parcel,we'll fill in the tracking number and inform you by e-mail.Please write the correct address and telephone number when you make orders,so the courier can contact you when they deliver the parcel to you. Thanks！
WARRANTY INFORMATION:
1.All the products have been checked and packed in good condition before dispatch.
2.All the products with one year warranty.
3.If you find any quality problems,please send it back within 3 days,and we'll send you a new one or refund you the payment after we get the returned one.
4.Buyers have to pay for the return cost and we will pay the cost for resend
5.All products returned should be in new conditions.