ETCR ETCR2000+ Manual Download Page 9

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3. Specifications

Instrument safety

: IEC/EN61010-1, IEC/EN6010-2-032

Insulation

: double insulation

Pollution degree

: class

Overvoltage category

: CAT III 150V to ground, Max 20A

Degrees of protection

-IP30, Group III equipment as per EN 60529 Ed 92

-IK04, as per EN 50102 Ed 95

Dimensions

H):

-Long elliptic jaw: 285mm

90mm

66mm; (11

3 inches)

-Round jaw: 260mm

90mm

66mm;(10

3 inches)

Span of Jaw

: Long elliptic jaw 35mm; round jaw 32mm

Weight

(including batteries):

Long elliptic jaw-1160g, Round

jaw-1120g

Battery type

: 4

1.5V alkaline LR6 AA battery

Low battery indication

is displayed

Internal consumption

: <50mA

Auto Power off

: after 5 minutes of idleness

Display

: 4 LCD, sign, decimal point and backlight

Memory size

: 99 Units of Reading

Environment

(Temperature & Relative Humidity):

-Working: -10

C~55

C, 10%RH-90%RH

-Storage: -20

C ~60

C, below 70%RH

Range shift:

Full range automatic shifting

External magnetic field:

<40A/m

External electric field:

<1V/m

Data upload interface:

RS232 (Optional)

Summary of Contents for ETCR2000+

Page 1: ......

Page 2: ... of Special Symbols 9 3 Examples Illustrated 10 VI Operating Method 11 1 Boot up 11 2 Shutdown 12 3 Resistance Measurement 13 4 Current Measurement 14 5 Date Lock Release Storage 15 6 Data Access 16 7 Alarm Settings 16 8 Access to Alarm Critical Value 17 9 Clear Data 17 VII Measurement Principle 18 1 Principle of Resistance Measurement 18 2 Principle of Current Measurement 18 VIII Measurement Meth...

Page 3: ...nt Grounding System 19 2 Limited Point Grounding System 20 3 Single Point Grounding System 21 IX Bill of Loading 24 X Parts List and Assembly Details 25 1 Parts List 25 2 Assembly Details 26 XI Trouble shooting 27 ...

Page 4: ...g environment provided 3 Pay attention to the text labeled on the panel and back plane of the Meter 4 Before booting up the trigger should be pressed for 1 2 times to ensure the jaws are well closed 5 At Boot time DO NOT press the trigger nor clamp any wire 6 Before the auto inspection is completed and the OL Ω symbols are showed the measured objects cannot be clamped on 7 The jaw planes contact m...

Page 5: ...the Meter being idle for a long time 12 The dismantling calibration and maintenance the Meter shall be operated by the authorized staff 13 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 14 The contents in this user manual marked with are limited to C ...

Page 6: ...oduct to heavy issues more in line with characteristics of handheld devices u New design panel operation with 6 buttons better performance u An increase of sound and light alarm beep beep beep alarm sound u Increase the interference signal recognition indicator u Improved anti jamming capability and test stability u Stored data 99 Units u Wider range 0 01Ω 1200Ω u Lower power consumption Maximum o...

Page 7: ...ditional methods and can be applied in the occasions not in the range of the traditional methods ETCR series of Pincers Earth Tester can measure the integrated value of the grounding body resistance and the grounding lead resistance ETCR series of Pincers 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...

Page 8: ...ode Range Resolution Accuracy Resistance 0 010Ω 0 099Ω 0 001Ω 1 0 01Ω 0 10Ω 0 99Ω 0 01Ω 1 0 01Ω 1 0Ω 49 9Ω 0 1Ω 1 0 1Ω 50 0Ω 99 5Ω 0 5Ω 1 5 0 5Ω 100Ω 199Ω 1Ω 2 1Ω 200Ω 395Ω 5Ω 5 5Ω 400 590Ω 10Ω 10 10Ω 600Ω 880Ω 20Ω 20 20Ω 900Ω 1200Ω 30Ω 25 30Ω Current True RMS 0 00mA 9 00mA 0 05mA 2 5 2mA 10 0mA 99 0mA 0 1mA 2 5 10mA 100mA 300mA 1mA 2 5 20mA 0 30A 2 99A 0 01A 2 5 0 1A 3 0A 9 9A 0 1A 2 5 0 5A 10 0A...

Page 9: ...n of Jaw Long elliptic jaw 35mm round jaw 32mm Weight including batteries Long elliptic jaw 1160g Round jaw 1120g Battery type 4 1 5V alkaline LR6 AA battery Low battery indication is displayed Internal consumption 50mA Auto Power off after 5 minutes of idleness Display 4 LCD sign decimal point and backlight Memory size 99 Units of Reading Environment Temperature Relative Humidity Working 10 C 55 ...

Page 10: ...LD Key lock Release display Storage 5 POWER Key Boot Up Shutdown Quit Clear Data 6 MEM Key Data Access Clear Data 7 AL Alarm Function Key Alarm Open Turn Off Alarm Critical Value Setting 8 Resistance Measure Switch Key Ω Right Arrow Key 9 Current Measure Switch Key A Left Arrow Key 10 Liquid Crystal Display LCD Note is limited to C ...

Page 11: ...oltage 3 Symbol of full data storage 4 Symbol of data access 5 2 Digital No Of Data Storage Unit 6 Current unit 7 Resistance unit 8 Noise signal 9 Data lock symbol 10 Symbol of an open jaw 11 Symbol of DC 12 Metrication decimal point 13 4 digital LCD figures display 14 Symbol of AC ...

Page 12: ...teries should be replaced OL Ω symbol indicates that the measured resistance has exceeded the upper limit of the Meter L0 01Ω symbol indicates that the measured resistance has exceeded the lower limit of the Meter OL A symbol indicates that the measured current has exceeded the upper limit of the Meter Alarm symbol when the measured value is greater than the critical value of alarm setting the sym...

Page 13: ...strated Note is limited to C Jaw is in open state and cannot measure Boot error instructions Er Error Measured loop resistance is less than 0 01Ω Measured loop resistance is 5 1Ω Measured loop resistance is 2 1Ω Lock the current measurement value 2 1Ω Auto storage as 08 set data Access to the stored data of Unit No 26 Measured loop resistance is 0 028Ω Alarm function activated the measured current...

Page 14: ... a lot of signals interference VI Operating Method 1 Boot up Boot DO NOT press the trigger don t open jaws nor clamp any wire Boot complete show OL Ω then press the trigger open jaws clamp the measured wire Before booting up the trigger should be pressed for a couple of times to ensure the jaws are well closed Boot must maintain clamp meter natural resting state don t flip Clamp don t be imposed o...

Page 15: ...he test ring still gives the correct result indicating Clamp measured only in the high value for example more than 100Ω has large errors When measuring a small resistance retains the original Accuracy the user can rest assured use 2 Shutdown Press POWER Key to Shutdown 5 minutes after boot LCD display into the blinking state To reduce battery consumption blinking state for 30 seconds automatically...

Page 16: ... show value should be consistent with the normal value on the test ring 5 1Ω The normal value on the test ring is the value at a temperature of 20 C It is normal to find the difference of numerical 1 word between the show value and the nominal value For instance If the nominal value of test ring is 5 1Ω it would be normal showing 5 0Ω or 5 2Ω Figure 5 It shows OL Ω indicating that the measured res...

Page 17: ...Measurement After the booting auto inspection is completed the Meter automatically enter the resistance measurement mode Upon showing OL Ω press A key and the Meter enter the current measurement mode showing AC 0 00mA see Figure 7 At this point press the trigger and open the jaws clamp the target wire reading to get the current value It shows OL A indicating that the measured current value exceede...

Page 18: ...nd then press HOLD key to cancel the lock HOLD symbol disappeared can continue to measure Loop operation can store 99 sets of data If the memory is full blinking display MEM symbol Figure 9 Lock measured resistance 0 016Ω at the same time as the first 01 sets of data storage As indicated in Figure 10 lock the measured current 278mA and save it as data unit No 99 And the memory is full now blinking...

Page 19: ...ttings In the test model press AL key to turn on or shutdown alarm function In test model press AL key for 3 seconds then enter to set alarm critical value function temporality the highest digit flashing first set a maximum bit shown in Figure 13 Figure 14 Press AL key to switch to the low number in the current digit flashing press the left right arrow keys to change the 0 1 9 figures after the nu...

Page 20: ...rent measurement Press down AL key for 3 sec you can access to check the alarm critical value which would flashes in high digit The value accessed was set in the last time And again press down AL key for 3 sec or POWER key to quit from the access state and return to the measuring state As indicated in Figure 15 the alarm critical value of resistance set in the last time is 20Ω 9 Clear Data In the ...

Page 21: ... E the current I can generate on the measured loop The Meter will measure E I and the measured resistance R can be obtained by the following formula 2 Principle of Current Measurement The basic principle of C in the measurement of current is the same with that of the measurement of resistance as shown in the figure below The AC current on the measured wire through the current magnetic loop and coi...

Page 22: ...w Where R1 is the target grounding resistance R0 is the equivalent resistance of the other entire tower grounding resistances paralleled Although strictly on the theoretical grounding because of the existence of so called mutual resistance R0 is not the usual parallel value in the sense of electrical engineering slightly higher than its IEC parallel output value But because a tower grounding hemis...

Page 23: ...uildings is not an independent grounding grid but several grounding bodies connected with each other through the wire Under such circumstances the above R0 regarded as 0 will yield more error on the results of the measurement Due to the same reasons mentioned above we may ignore the impact of the mutual resistance and the equivalent resistance of the grounding resistance paralleled is calculated b...

Page 24: ...pany Users can use the office computer or notebook computer to carry out solutions In principle in addition to ignoring the mutual resistance this method does not have the measurement error caused by neglecting R0 However users need to pay attention to that in response to the number of the grounding bodies mutually linked in your grounding system it is necessary to measure the same number of the t...

Page 25: ...urrent testing methods Two Point Method As shown in the figure below in the vicinity of the measured grounding body RA find an independent grounding body of better grounding state RB for example near a water pipe or a building RA and RB line will connect to each other using a single testing line As the resistance value measured by the Meter is the value of the series resistance from the testing li...

Page 26: ...below in the vicinity of the measured grounding body RA find two independent grounding bodies of better grounding state RB and RC First link RA and RB with a test line use the Meter to get the first reading R1 Second have RB and RC linked up as shown in the following figure Use the Meter to get the second reading R2 Third have RC and RA linked up as shown in the following figure Use the Meter to g...

Page 27: ... body RA To facilitate the memory of the above formula these three grounding bodies scan be viewed as a triangle then the measured resistance is equivalent to the value of the resistance values of the adjacent edges plus or minus resistance value of the opposite sides and divided by 2 As the reference points the grounding resistance values of the other two grounding bodies are RB R1 RA RC R3 RA IX...

Page 28: ...tery cover DS03 1 4 Upper shell DS04 1 5 Subjacent shell DS 05 1 6 Tension spring DS 06 2 7 Clamp DS 07 1 8 LCD DS 08 1 9 HOLD key DS09 1 10 LCD cover DS10 1 11 PCB DS11 1 12 Connect screws of shells DS12 3 ST2 9X10 13 Clamp screws DS13 2 ST2 9X25 14 Shaft DS14 1 15 Push button DS15 5 16 Screws for PCB fix DS16 2 ST2 2X6 17 Screws for LCD fix DS17 2 ST2 2X6 ...

Page 29: ... 26 2 Assembly Details ...

Page 30: ...he PCB Indicating ERROR Display Err big error results or results unstable Insufficient capacity of battery Replace the batteries Contact surface of jaw is polluted by dust oil etc Clean the surface Poor enclose of jaw Trigger the clamp several times and then re boot Defect of circuit component Replace the PCB Measure in wrong steps Study the manual and follow it Incapable measurement of resistance...

Page 31: ...CD connection wire Re plug the LCD connect plug or replace the plug Defect of LCD Replace the LCD Insufficient capacity of battery Replace the batteries Defect of circuit component Replace the PCB Incapable to hold reading HOLD button Depart from the position Re assemble the button Defect of circuit component Replace the PCB ...

Page 32: ... Electronic Technology Company Address F 3F No 4 Pengshang Zhifu Road Jiahe Baiyun District Guangzhou Guangdong China Post Code 510440 Tel 86 20 62199556 62199554 Fax 86 20 62199550 E mail info etcr cc Website www etcr cc ...

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