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8

III. Specification

1. Model of Series

Note: “√” means available.

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Summary of Contents for ETCR2000

Page 1: ...al 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...

Page 2: ...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 main...

Page 3: ...d 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 an...

Page 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 tak...

Page 5: ...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...

Page 6: ...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 Before the auto inspect...

Page 7: ...asurement 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 Te...

Page 8: ...8 III Specification 1 Model of Series Note means available...

Page 9: ...ns 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 56m...

Page 10: ...ency 50 60Hz Storable Measurement Data 99 Units Setting Range of Resistance Alarm Critical Value 1 199 Setting Range of Current Alarm Critical Value 1 499mA Note is limited to ETCR2000C IV Structure o...

Page 11: ...ystal Display 1 LCD Screen 1 Alarming sign 2 Sign of low battery voltage 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 No...

Page 12: ...the measured resistance has exceeded the lower limit of the Meter 5 OL A symbol indicates that the measured current has exceeded the upper limit of the Meter 6 Alarm symbol when the measured value is...

Page 13: ...6 Measured loop resistance is 0 028 6 Alarm function activated the measured current exceeded the critical value of alarm setting Low battery voltage is displayed At this time it not guarantee the accu...

Page 14: ...Access To Alarm Critical Value SET Alarm Critical Value Setting Digital Option Browse And Store Data MODE SET To clear all stored data SET MODE Note is limited to ETCR2000C VII Operating Method 1 Boot...

Page 15: ...cannot be guaranteed In auto inspection process if the jaws clamped around a conductor loop the measurement is not accurate Please remove conductor loop and reboot it up If there was not an OL appear...

Page 16: ...t press HOLD key to quit from the HOLD state then press POWER key to shut it down In HOLD state ETCR2000C is required to press SET key or POWER key to quit HOLD state then press POWER key to shut down...

Page 17: ...state before continuing measuring Flash symbol indicates that the measured resistance value has gone beyond the alarm critical value In other modes ETCR2000C can be switched to the resistance measure...

Page 18: ...st to press POWER key or SET key for 3 sec to quit from the state then press MODE key to switch to the mode of current measurement 5 Data Lock Release Storage In the process of resistance measurement...

Page 19: ...om the setting state of alarm critical value before operating locking and saving function Switching on after shutdown will not lose the saved data 6 Data Access Press MODE key to enter the Access Mode...

Page 20: ...Figure 13 Critical Value Setting of Resistance Alarm Figure 14 Critical Value Setting of Current Alarm In the process of setting or After a successfully process press POWER key can also quit from sett...

Page 21: ...ing state of alarm critical value it is required to press down POWER key or SET key for 3 sec to quit from the setting state of alarm critical value before pressing MODE key to switch to the access da...

Page 22: ...ure below The AC current on the measured wire through the current magnetic loop and coil can generate a induction current I1 The Meter will measure I1 and the measured current I can be obtained by the...

Page 23: ...f 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 hemisphere was...

Page 24: ...paralleled is calculated by the usual sense Thus for the grounding system of N N is smaller but larger than 2 grounding bodies it can offer N equations Where R1 R2 RN are grounding resistances of N gr...

Page 25: ...he earth electrode of the grounding system to artificially create a loop for testing The following presented is two kinds of methods for the single point grounding measurement by use of the Meter Thes...

Page 26: ...the figure 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...

Page 27: ...nding 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 o...

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