HVTest ETCR2000 User manual
1
Dear Client
Thank you for Purchasing our ETCR2000 Clamp Type Earth
Resistance Tester. Please read the manual in detail prior to first
use, which will help you use the equipment skillfully.
Our aim is to improve and perfect the
company's products continually, so there may be
slight differences between your purchase equipment
and its instruction manual. You can find the changes
in the appendix. Sorry for the inconvenience. If you have further
questions, welcome to contact with our service department.
The input/output terminals and the test column
may bring voltage, when you plug/draw the test wire or
power outlet, they will cause electric spark. PLEASE
CAUTION RISK OF ELECTRICAL SHOCK!
Company Address:
T4，No. 41, High-tech 2 Road，East Lake High-tech Development Zone，
Wuhan
Sales Hotline: 86-27- 87457960
After Service Hotline:86-27- 87459656
Fax: 86-27- 87803129
E-mail: [email protected]
Website: www.hvtest.cc
2
SERIOUS COMMITMENT
All products of our company carry one year limited warranty
from the date of shipment. If any such product proves defective
during this warranty period we will maintain it for free. Meanwhile
we implement lifetime service. Except otherwise agreed by
contract.
SAFETY REQUIREMENTS
Please read the following safety precautions carefully to avoid
body injury and prevent the product or other relevant subassembly
to damage. In order to avoid possible danger, this product can only
be used within the prescribed scope.
Only qualified technician can carry out maintenance or repair
work.
--To avoid fire and personal injury:
Use Proper Power Cord
Only use the power wire supplied by the product or meet the
specification of this produce.
Connect and Disconnect Correctly
When the test wire is connected to the live terminal, please do
not connect or disconnect the test wire.
Grounding
The product is grounded through the power wire; besides, the
3
ground pole of the shell must be grounded. To prevent electric
shock, the grounding conductor must be connected to the ground.
Make sure the product has been grounded correctly before
connecting with the input/output port.
Pay Attention to the Ratings of All Terminals
To prevent the fire hazard or electric shock, please be care of
all ratings and labels/marks of this product. Before connecting,
please read the instruction manual to acquire information about the
ratings.
Do Not Operate without Covers
Do not operate this product when covers or panels removed.
Use Proper Fuse
Only use the fuse with type and rating specified for the product.
Avoid Touching Bare Circuit and Charged Metal
Do not touch the bare connection points and parts of energized
equipment.
Do Not Operate with Suspicious Failures
If you encounter operating failure, do not continue. Please
contact with our maintenance staff.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in Explosive Atmospheres.
Ensure Product Surfaces Clean and Dry.
4
－Security Terms
Warning: indicates that death or severe personal injury may
result if proper precautions are not taken
Caution: indicates that property damage may result if proper
precautions are not taken.
5
Contents
I. Attention................................................................................................ 6
II. Brief Introduction...............................................................................7
III. Specification.......................................................................................8
1. Model of Series............................................................................................................ 8
2. Ranges and Accuracy of Measurement................................................................... 9
3. Technical Specifications..............................................................................................9
IV. Structure of Meter...........................................................................10
V. Crystal Display..................................................................................11
1. LCD Screen.................................................................................................................11
2. Description of Special Symbols............................................................................... 12
3. Examples Illustrated.................................................................................................. 12
VI．Quick Find Table...........................................................................14
VII. Operating Method......................................................................... 14
1. Boot Up........................................................................................................................14
2. Shutdown.................................................................................................................... 16
3. Resistance Measurement.........................................................................................16
*4. Current Measurement..............................................................................................17
5. Data Lock/Release/Storage..................................................................................... 18
*6. Data Access.............................................................................................................. 19
*7. Setting of Alarm Critical Value................................................................................ 20
*8. Access to Alarm Critical Value................................................................................20
*9. Clear Data..................................................................................................................21
VIII. Measurement Principle.............................................................. 21
1. Principle of Resistance Measurement.................................................................... 21
2. Principle of Current Measurement.......................................................................... 22
IX. Measurement Method of Grounding Resistance.................. 22
1. Multi-Point Grounding System................................................................................. 22
2. Limited Point Grounding System.............................................................................24
3. Single-Point Grounding System.............................................................................. 25
6
I. Attention
Thank you for purchasing this pincer earth tester from ETCR Electronic. In
order to make better use of the product, please be certain:
--To read this user manual carefully.
--To comply with the operating cautions presented in this manual.
Under any circumstances, pay special attention to safety in the use of
the Meter.
Pay attention to the measurement range of the Meter and the using
environment provided.
Pay attention to the text labeled on the panel and back plane of the
Meter.
Before booting up, the trigger should be pressed for a couple of times
to ensure the jaws are well closed.
In the process of auto inspection in booting up, DO NOT press the
trigger, nor clamp any wire.
The process of auto inspection would display "CAL6, CAL5,
CAL4…CAL0, OL Ω."
Before the auto inspection is completed and the "OL Ω" symbols are
showed, the measured objects cannot be clamped on.
The jaw planes contact must be maintained clean, and should not be
polished with corrosive and rough materials.
Avoid any impact onto this Meter, especially the jaw contact planes.
This Meter will have some buzzing sound in measurement process,
and it is normal.
The measurement current of the wire should not exceed the upper limit
of the Meter.
Please take out the batteries in the case of the Meter being idle for a
long time.
The dismantling, calibration and maintenance the Meter shall be
7
operated by the authorized staff.
If the continuing use of it would be dangerous, the Meter should be
stopped using immediately, and immediately sealed for the treatment by the
authorized agencies.
The contents in this user manual marked with "*" are limited to
ETCR2000C.
II. Brief Introduction
ETCR2000 series of Pincer Earth Tester is a major breakthrough in
traditional grounding resistance measurement. It is widely used in the
grounding resistance measurement of the power, telecommunications,
meteorology, oilfield, construction and the industrial and electrical equipment.
ETCR2000 series of Pincer Earth Tester, in the measurement of a
grounding system with loop current, does not require breaking down the
grounding wire, and need no auxiliary electrode. It is safe, fast and simple in
use.
ETCR2000 series of Pincer Earth Tester can measure out the faults
beyond the reach of the traditional methods, and can be applied in the
occasions not in the range of the traditional methods. ETCR2000 series of
Pincer Earth Tester can measure the integrated value of the grounding body
resistance and the grounding lead resistance.
ETCR2000 series of Pincer Earth Tester is equipped with a long jaw, as
indicated in the figure below. A long jaw is particularly suitable for the
occasion of grounding with the flat steel.
In addition, ETCR2000C Pincer Earth Tester is also able to measure the
leakage current and the neutral current in the grounding system.
8
III. Specification
1. Model of Series
Note: “√” means available.
9
2. Ranges and Accuracy of Measurement
Note: "*" is limited to ETCR2000C.
3. Technical Specifications
Power Source: 6VDC (4 ×5# alkaline battery)
Working Temperature: -10 ° -55 ° C
Relative Humidity: 10%-90%
LCD: 4-digital LCD, 47 × 28.5mm width
Net Weight (including batteries): 1130g
Demension: 275mm long, 85 mm wide, 56mm thick
Protection Level: Double insulation
Structural Feature: In the jaw way
Shift: Automatic
10
External Magnetic Field:＜40A/m
External Electric Field:＜1V/m
Measuring Time: 1 second
Resistance Measurement Frequency:＞1KHz
Maximum Resistance Measurement Resolution: 0.001 Ω
Resistance Measurement Range: 0.01-1000 Ω
*Current Measuring Range: 0.00-30.0A
* Measured Current Frequency: 50/60Hz
* Storable Measurement Data: 99 Units
*Setting Range of Resistance Alarm Critical Value: 1-199 Ω
*Setting Range of Current Alarm Critical Value：1-499mA
Note: "*" is limited to ETCR2000C.
IV. Structure of Meter
1. Liquid Crystal Display (LCD)
2. Trigger: to control opening and closing of jaw :
3. Pincer Jaw : 55 x 32mm
4. POWER Key: Boot Up / Shutdown /*Quit
5. HOLD Key: lock / Release display
*6.MODE Key: switch key of function mode (resistance measurement /
current measurement /data access)
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