Digital Earth Ground Resistance Tester Meter 0.01~2000Ω Earth Voltage Measuremet

Description

Digital Earth Ground Resistance Tester Meter 0.01~2000Ω Earth Voltage Measuremet
Instruction:
Digital Earth Resistance Tester specially designed and manufactured for the field measurement of ground resistance, adopts digital and micro-processing technology, 3 wire or 2 wire method to measure ground resistance, with unique calibration function for wire resistance, anti-interference ability and environmental adaptability, to ensure the long-term measurement of high precision, high stability and reliability; The instrument out shell adopts waterproof protection case, anti-collision, anti-fall, waterproof (protection grade IP65),which is strong, safe and durable, the instrument is also equipped with large capacity rechargeable lithium battery pack, especially suitable for outdoor construction site to use.It is widely used in measuring ground resistance of electric power, telecommunication, meteorology, oil field, construction, lightning protection and industrial electrical equipment.
Digital Earth Resistance Tester has the unique function of wire resistance calibration, and it is more accurate to measure the low value ground resistance in the field, which can avoid the error caused by the change of wire resistance in the test line for a long time usage.It can avoid errors caused by incomplete insertion of test line into instrument interface or bad contact.It can avoid the error caused by the user to change or lengthen the test line..
Digital Grounding Resistance Tester is composed of host machine, monitoring software, test wires, 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 400 sets of data, realize historical inquiry and online real-time monitoring by monitoring software, dynamic display, with the indicator of max/min/average value, and with alarm value setting and  alarm indicator functions, and with the functions as historical data access, reading, preservation, report forms, printing and so on.
Product Main Function
1. Earth resistance measurement, Range: 0.010Ω~2000Ω
2. Earth voltage measurement,Range: AC 0
～
600V
3. Data storage: 400 sets
4. Alarm function: audible and visual alarm
Measurement Range and Accuracy
Measurement Function
Range
Accuracy
Resolution
Earth Resistance
0.01Ω
～
20Ω
±2%rdg±3dgt
(Auxiliary grounding resistance 100Ω±5%, Votage to ground
＜
10V)
0.01Ω
0.1Ω
～
200Ω
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
----
Technical Specifications
Function
Measurement of earth resistance, voltage to earth, low value resistance
Power Supply
DC 7.4V 2600mAh rechargeable lithium battery, full of about 8.4V
Backlight
Controllable screen backlight, suitable for dim places
Measuring Mode
Precision 3-wire measurement, simple 2-wire measurement
Measuring Method
Earth Resistance: rated current change-pole method, measurement current 20mA Max
Earth Voltage: Average rectification
Test Frequency
128Hz/111Hz/105Hz/94Hz(AFC)
Short Circuit Test Current
AC 20mA max
Data Mode
Average value, maximum value, minimum value
Wire Resistance Verification
To avoid errors caused by incomplete insertion of test wire into instrument interface or poor contact or replacement of extended test wire by users, so as to make the grounding resistance measurement more accurate
Display mode
4-digital super-large LCD display, white screen backlight
Measure indicator
LED flash indicator and LCD count down display in measurement
LCD Dimension
128mm×75mm; display area:124mmX67mm
Meter Dimension
280mm(L)×260mm(W)×160mm(H)
Test Wires
3 wires: each for red 15m, yellow 10m, and green 5m
Simple Test Wire
2 wires: each for red 1.6m and black 1.6m
Auxiliary Grounding Rod
2PCS: Φ10mm×150mm
Measuring Rate
Earth Voltage: about 3 times/second; Earth resistance: about 15 seconds/time
Measuring Times
Over 5000 times (20Ω gear measure 10Ω, interval time should be at least 30 seconds)
Line Voltage
Measurement of earth voltage: below AC 600V
Communication Interface
With USB interface, software monitoring, storage data can be uploaded to computer, saved or printed.
Communication Wire
One piece of USB communication wire, wire length 1.5m
Data Storage
400 sets, “FULL” symbol flash display storage is full
Data Hold
Data hold function: “HOLD” symbol display
Data Access
Data read function: “READ” symbol display
Overflow Display
Exceed measuring range overflow function: “OL” symbol display
Alarm Function
Measuring 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 remind to charging the battery
Power Consumption
Backlight: 25mA Max
Standby: 25mA Max(Backlight shut down )
Measurement: 200mA Max(Backlight shut off)
Weight
Tester: 2.29kg
Test wires: 0.847g(include the simple test wires)
Auxiliary Grounding Rod:0.468kg(2pcs)
Tester package: 0.915kg
Working Temperature & Humidity
-10
℃
-40
℃
, below 80%rh
Storage temperature & humidity
-20
℃
-60
℃
, below 70%rh
Protection Level
IP65(close the case)
Overload Protection
Measure earth resistance: between each interfaces of C(H)-E
、
P(S)-ES, AC 280V/3 seconds
Insulation Resistance
Over 10MΩ (between circuit and outside shell is 500V)
Withstanding Voltage
AC 3700V/rms. (Between circuit and outside shell)
Electromagnetic Features
IEC61010-4-3,wireless frequency electromagnetic field≤1V/m
Protection Type
IEC61010-1 (CAT
Ⅲ
300V
、
CAT IV 150V
、
Pollution 2);
IEC61010-031;
IEC61557-1 (Earth resistance);
Packing list:
Meter
1 PCS
Instrument Bags
1 PCS
Auxiliary Grounding Rod
2 PCS
Monitoring Software CD
1 COPY
USB Communication Cable
1 PCS
Test Wires
3 PCS
Simple Test Wires
2 PCS
Exclusive Charger
1 PCS
Manual/Warranty Card/Certificate
1 PCS