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Related Manuals for Armada Technologies ERT100
Summary of Contents for Armada Technologies ERT100
- Page 1 Digital Earth Resistance Tester OPERATING INSTRUCTION 300V...
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Page 2: Table Of Contents
Digital Earth Resistance Tester Contents 1. Safety………………………....................1 2. Description.……………………....................2 2.1 Meter Description……………………...................2 2.2 Display……………………....................5 3. Specifications……………………...................7 3.1 Range and Precision…………....................7 3.2 Measurement Method……………..................7 3.3 Using Temperature and Humidity……………………............7 3.4 Storing Temperature and Humidity………………..............7 3.5 Battery……………....................…..7 3.6 Volume………………....................…..7 3.7 Weight…………….....................……...7 3.8 Accessories……………....................…..7... - Page 3 Digital Earth Resistance Tester 4. 4. Operation Instructions ..................8 4.1 Testing for Earth Voltage..................8 4.2 Testing the Earth Resistance using the 2-pole method........8 4.3 Testing the Earth Resistance using the 3-pole method........10 4.4 Data Storage ....................12 4.5 Data Recall......................12 4.6 REL Measurement.....................13 4.7 MAX/MIN/AVG Measurement................13...
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Page 4: Safety
Digital Earth Resistance Tester 1. Safety The earth resistance tester (hereinafter referred to as meter) , which is up to GB4793.1, the requirement on the safety of electronic measurement instruments, is designed and manufactured in accordance with EN 61010-1, EN61010-2-030 Safety Standard, regarded as Grade 2 pollution, and the maximum voltage for the meter to probe can not exceed CAT III 300V. -
Page 5: Description
Digital Earth Resistance Tester Caution Check if the total length of testing plugs are inserted into the port before a measurement. Take out of the batteries from the cartridge if the meter will not be used or will be stored for long. Don’t expose the meter to sunlight, high temperature, humidity or dew Clean the meter with neutral solvents or wet cloth instead of abrasives or organic solvents Lay the meter in store only when it is dry. - Page 6 Digital Earth Resistance Tester...
- Page 7 Digital Earth Resistance Tester (6) READ Key (11) ENTER Key It is used to read the data obtained. Used to confirm a storage or reading of data. (7) MEMO Key (12) REL Key It is used to store the data obtained. Used to select relative measurement.
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Page 8: Display
Digital Earth Resistance Tester 2.2 LCD (1) Simulating bar (2) Display of saved data (3) Display of memory cell used for data storage Descriptions of symbols on LCD: TEST: a test is underway ＞LIMIT： measuring limit has been exceeded... - Page 9 Digital Earth Resistance Tester MAX： Maximum MIN： Minimum AVG： Average REL： Relative measurement READ： Data reading MEMO： Data is being put into a memory USED： There are data in memories. 2POLE： 2-pole method is being used for measurement of resistance. 3POLE：...
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Page 10: Specifications
Digital Earth Resistance Tester 3. Specifications Air temperature: 23 ± 5℃ Relative humidity: <75% 3.1 Range Specifications Range Precisionh 0~29.99Ω ±(2%rdg+6d) 30~99.9Ω ±(3%rdg+3d) Earth Ground Resistance 100~999Ω ±(3%rdg+3d) 1.00~4000Ω ±(4% rdg +4d) Earth Voltage AC 0~200V（50Hz/60Hz） ±(2% rdg +4d) 3.2 Measurement method Constant Current Conversion is used for the measurement of earth resistance, with the frequency of the testing current about 800HZ and the size about 3mA. -
Page 11: Operation Instructions
Digital Earth Resistance Tester 4.Operation Instruction Danger In measurement of earth voltage, do not exert voltage above AC220V on the measurement port. In measurement of earth resistance, there will occur potential of about 50 V between port E and S or between ports E and C, therefore, protect yourself from electrical shock. - Page 12 Digital Earth Resistance Tester (1) Test Connection Diagram...
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Page 13: Testing The Earth Resistance Using The 3-Pole Method
Digital Earth Resistance Tester (2) Measurement of earth voltage. Earth voltage measurement should be done before measurement of earth resistance to check the amount of earth voltage, as voltage more than 10 V is likely to cause larger error in the measurement of earth resistance. In this case, cut the measured object from the power supply and wait until the earth voltage drop for another measurement. - Page 14 Digital Earth Resistance Tester (1) Connect the test leads to the meter as follows Fully insert the Auxiliary Earth Bars P, C in straight line into the ground and ensure that the bars are between 5 and 10 meters apart. Connect ends of the test leads (black, red and green), from the ports E, P, C, separately to the object measured, auxiliary earth rod P and auxiliary earth C.
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Page 15: Data Storage
Digital Earth Resistance Tester (2) Measurement of earth voltage Earth voltage measurement should be done before resistance, as voltage more than 10 V is likely to cause larger error in the measurement of earth resistance. In this case, remove the test leads and wait until the earth voltage drop for another measurement. (3) Measurement of earth resistance Rotate the switch to 3 POL position, press down the MEASURE key to start the measurement The MEASURE key will come on and blink. -
Page 16: Rel Measurement
Digital Earth Resistance Tester 4.6 REL—Relative Measurement Relative measurement is used for direct measurement of earth resistance. Press REL to switch in and out of relative measurement mode. (1) In relative measurement mode, the symbol “REL” is shown on LCD and the existing reading is stored in the memory for future reference. -
Page 17: Battery Replacement
Digital Earth Resistance Tester 5. Replacement of Batteries Danger Never replace the batteries while the meter is damp. Never replace the batteries while the meter is being used. Switch off the meter and disconnect the test leads and earth rods before replacements to avoid electrical shock. - Page 18 Digital Earth Resistance Tester...
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