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Related Manuals for FUZRR FR3010
Summary of Contents for FUZRR FR3010
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Page 2: Table Of Contents
CONTENT I. Safety Precautions and Procedures..........1 II. Introduction ..................3 III．Measuring Range and Accuracy ........... 4 IV．Technical Specifications ..............5 V．Tester Structure ................7 VI．Measuring Principle ................ 8 VII. Operation Methods ................. 9 1．Switch On/Off ................9 2．Battery Voltage Check ..............9 3. - Page 3 Thanks for your purchase of Ground Resistance Soil Resistivity Tester of our company. Before you use the instrument for the first time, in order to avoid possible electric shock or personal injury, please be sure to: read and strictly observe the safety rules and precautions listed in this manual.
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Page 4: Introduction
high-temperature and moisture, or condensation, and under direct daylight radiation for a long time. u For replacing battery, please confirm testing wire has moved apart the meter, and FUNCTION SWITCH rotary switch is in “OFF” position. u Please put the used batteries in appointed collection place. u When replacing the battery with the meter, make sure that the test line has been removed from the meter and the meter is turned off. -
Page 5: Measuring Range And Accuracy
meteorology, computer rooms, oil fields, power distribution lines, iron tower transmission lines, gas stations, factory grounding networks, lightning rods and so on. Instrument testing is precise, fast, simple, stable and reliable. The Ground Resistance • Soil Resistivity Tester is controlled by the microprocessor and can automatically detect the connection status of each interface and the interference voltage and interference frequency of the ground network, and has the function of testing the auxiliary grounding resistance value. -
Page 6: Technical Specifications
2. Depending on the measurement accuracy of R, π = 3.14, a: 1 m ~ 100m; IV．Technical Specifications Two, three, four-wire measure grounding resistance, Function soil resistivity; Ground voltage, AC voltage Ambient temperature 23℃±5℃，below 75%rh and humidity DC 9V 6-section LR14 Dry Battery Standby for more Power Supply than 100 hours Interference... - Page 7 shifting Backlight Gray screen backlight, suitable for dim places 4-digital super-large LCD display, blue screen Display Mode backlight Measuring During measurement, LED flash Indicator LCD Frame 111mm×65mm Dimension LCD display 108mm×65mm area Dimension L×W×H: 240mm×188mm×85mm Standard Test 4 wires: each for red 20m, black 20m, yellow 10m, Wire and green 10m Simple Test...
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Page 8: Tester Structure
Storage temperature & -20℃～60℃；below 70%rh humidity Measuring earth ground resistance: between each Overload Protection interfaces of H-E、S-FR, AC 280V/3 seconds Insulation Over 20MΩ(between circuit and enclosure it is 500V) Resistance Withstanding AC 3700V/rms (Between circuit and enclosure) Voltage Electromagnetic IEC61326(EMC) Features IEC61010-1 (CAT III 300V, CAT IV 150V, Pollution Degree 2);... -
Page 9: Measuring Principle
5. E interface:Earth electrode 6. Button area 7. Rotary switch for selecting function 8. Test button 9. Safety alligator clip 10. Standard test wires 11. Auxiliary earthing rods 12. Simple test wires 13. Interface of testing wires VI．Measuring Principle 1. Ground voltage measurement uses average rectification. 2. -
Page 10: Operation Methods
A： Intrinsic error E2：Variation due to power supply voltage E3：Variation due to temperature change E4：Variation due to interference voltage change E5：Variation due to contact electrode resistance 4. The soil resistivity (ρ) is measured using the 4-pole method (Winner method): the alternating current I flows between the E ground electrode and the H current electrode, and the potential difference V between the S voltage electrode and the FR auxiliary ground electrode is calculated. -
Page 11: Ground Voltage Measurement
3. Ground voltage measurement One auxiliary grounding rod is required for the ground voltage test. As long as the instrument is connected to the ground through the test wire and the auxiliary grounding rod, the other test wires of the instrument interface cannot be connected to the L and N wires of the commercial power supply. - Page 12 completed, the LCD displays the line resistance and stores the value. The checked line resistance value is automatically deducted from this start-up ground resistance measurement. Shutdown does not save the calibration line resistance. The next time you turn on the power, you need to verify again.. 5．Grounding Resistance Precision Measurement When testing the grounding resistance, first confirm the grounding voltage of the grounding wire, that is, the voltages of H and E or S and...
- Page 13 For a multi-point independent grounding system or a geodetic grounding system, the user can choose a longer test line, and the electrode spacing is greater than 5 times the maximum diagonal length of the tested network. As shown below: R=r1∥r2∥r3∥r4∥r5∥r6∥...∥rn (r1...rn are all independent earth points)
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Page 14: 7．Two-Wire Easy Test Grounding Resistance
R——meter readings, total grounding resistance of the entire grounding system; R1...rn - are all independent grounding points, and grounding bodies are not connected together under the ground; RH—ground resistance of auxiliary current pole H; RS - ground resistance of auxiliary voltage pole S; n - the number of independent grounding points, the more points, the smaller the R value. - Page 15 Second-line test: This method is a simple measurement method that does not use the auxiliary grounding rod. It uses the existing grounding electrode with the smallest value of the grounding resistance as the auxiliary grounding electrode, and uses two simple test lines to connect the HS interface and the E-FR interface.
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Page 16: 8．Soil Resistivity Test
total value of earth ground resistance value of measured earthing object and that of commercial earthing object, namely: RE=RX＋re In which: RE is the Tester reading value; RX is the earth ground resistance value of measured earthing object; re is the earth ground resistance value of common earthing object like commercial use power system. - Page 17 Auxiliary grounding rod spacing setting: After connecting the test line, press the function button ρ to enter the soil resistivity test mode, press and hold the SET button (more than 3 seconds) to enter the spacing setting of the auxiliary grounding rod, press the “ ” key shortly to move the cursor, press "...
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Page 18: 9．Backlight Control
．Backlight Control After startup, press “ “ button to turn on or off backlight. The backlight function is suitable to dark spot. It will default backlight turn-off for each startup. ．Alarm Settings After power on, short press “ ” to turn on and off the alarm function. Short press "SET"... -
Page 19: Battery Replacement
button to select reading data group number by step value 1, press button constantly to select reading data group number by step value 5, and then press button to exit from reading. In the figure below, the number 3 is the current group number, and 6 is the total group number, LCD will display“NULL”, see the above figure. - Page 21 GuangZhou ZhengNeng Electronics Technology Co. Address: 2F, No.15 Baoshu Road, Taihe, Baiyun District, Guangzhou, Guangdong, China Toll-free call：4000-1515-38 Tel：86-20-36544172 Fax：86-20-37319075 Post：510540 WebSite：www.znele.com...
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