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Earth Resistance Soil Resistivity Tester

ETCR Electronic Technology Company

Содержание 3000B

Страница 1: ...Earth Resistance Soil Resistivity Tester ETCR Electronic Technology Company ...

Страница 2: ...Principle 8 VI Operation Methods 9 1 Switch On Off 9 2 Battery Voltage Check 9 3 AC Voltage Measurement 10 4 Earth Voltage Measurement 11 5 4 wires Precise Earth Resistance Measurement 12 6 3 Wires Earth Resistance Measurement 15 7 2 Wires Simple Measurement 15 8 Soil Resistivity Measurement 17 9 Backlight Control 18 10 Alarm Settings 18 11 Data Lock Storage 18 12 Data Reading Deletion 19 13 Data ...

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Страница 4: ...e use it can be used only when there is no damaged naked or broken part in testing wires or insulation layer During measurement it is forbidden to touch bare conductors and circuit under measurement Before measurement please confirm whether FUNCTION rotary switch has been set within the proper measuring range Confirm that connector plug of lead has been inserted in the tester interface closely Ple...

Страница 5: ...ter usage When the meter displays battery low voltage symbol and you need to replace the battery in time If the Tester is not going to be used for a long period remove the battery Pay attention to measuring range and usage environment stipulated for the Tester This measuring device is only to be used disassembled adjusted and repaired by qualified personnel with authorization When it may cause haz...

Страница 6: ...ng protection industrial electrical equipment and other earth resistance soil resistivity earth voltage AC voltage measurement ETCR3000B Earth Resistance Soil Resistivity Tester is composed of host machine monitoring software testing wires auxiliary ground pillars communication wires and others The large LCD display of host machine is with blue backlight and bar graph indicating that can be seen c...

Страница 7: ...il resistivity earth voltage AC voltage Power Supply DC 9V Zi Mn dry battery R14S 1 5V 6 PCS continuous standby for 300 hours Measurement Range Earth Resistance 0 00Ω 30 00kΩ Soil Resistivity 0 00Ωm 9000kΩm Measuring Mode Precise 4 pole measurement 3 pole measurement simple 2 pole measurement Measuring Method Earth Resistance rated current change pole method measurement current 20mA Max Soil Resis...

Страница 8: ...00 times Short circuit test interval time should be at least 30 seconds Circuit Voltage below AC 600V RS232 Interface Possess RS232 interface software supervision storage data can be uploaded to computer saved or printed Communication Wire One piece of RS232 communication wire with length 1 5m Data Storage 300 sets MEM icon storage indicator flash display FULL icon to indicate storage is full Data...

Страница 9: ...interfaces of C H E P S ES AC 280V 3 seconds Insulation Resistance Over 20MΩ between circuit and enclosure it is 500V Withstanding Voltage AC 3700V rms Between circuit and enclosure Electromagnetic Features IEC61326 EMC Protection Type IEC61010 1 CAT Ⅲ 300V CAT IV 150V Pollution 2 IEC61010 031 IEC61557 1 Earth resistance IEC61557 5 Soil resistivity JJG 366 2004 3 Intrinsic error and performance in...

Страница 10: ...Ω 100R 50kΩ rP max 4kΩ 100R 50kΩ 2 When 5V interference voltage additional error 5 rdg 5dgt III Tester Structure 1 LCD 2 Button area 3 Rotary switch for selecting function 4 USB Interface 5 Interface of testing wires 6 C H interface Current electrode 7 ES interface Auxiliary earth electrode 8 E interface Earth electrode 9 P S interface Voltage electrode 10 Standard test wires 11 Auxiliary groundin...

Страница 11: ...ol Display when long press MEM for at least 3 seconds to access data 7 Data storage symbol Display when press MEM to hold data and store 8 Interference signal symbol Display when the interference voltage exceed 5V 9 Low battery symbol Display when the battery voltage decreases to 7 5V 10 Display the group number of stored data and display countdown 11 Interference electrode symbol Display when the...

Страница 12: ...hod can eliminate influence of contact resistance usually result from dirty or rusty between measured earthing body auxiliary earthing rods test clips meter s input interface The 4 wires method can also eliminate influence of line resistance 3 Maximum Operating Error Operating error B is an error obtained within the rated operating conditions and calculated with the intrinsic error A which is an e...

Страница 13: ... distance a far more than embedding depth h generally should meet a 20h as shown below VI Operation Methods 1 Switch On Off Rotate FUNCTION rotary switch to fulfill switch on and off When rotary switch button displays OFF for shut off The Tester has no auto shut off function so please shut it off after usage in case of battery consumption saving 2 Battery Voltage Check After switch on if LCD displ...

Страница 14: ...efers to the general commercial AC voltage measurement pay attention to the difference between grounding voltage the meter can be used for testing below 600V AC line voltage As shown below Firstly connect test wires with P S ES interface secondly connect test wires with tested line then rotate FUNCTION rotary switch to EARTH VOLTAGE and start testing LCD will display the test results Green Yellow ...

Страница 15: ...l differences and earthing equipment shell earthing wires earthing body when electrical equipment has a earthing fault Earth voltage is the potential differences between the earth As a reference point the earth is zero potential Earth voltage measurement need to use one auxiliary earthing rod Please pay attention to the difference from commercial AC voltage measurement As shown below meter auxilia...

Страница 16: ... input interface The 4 wires method can also eliminate influence of line resistance So it is better than 3 wires measurement As shown below Start from the measured body interval 5m 20m respectively insert P S C H auxiliary earthing rods deep into the earth in a straight line and then connect testing wires black green yellow red from E ES P S C H interfaces corresponding to measured earth electrode...

Страница 17: ... 13 Measured Grounding Red Yellow Green Black For multi independent earthing system or larger earth net 50m or longer testing wire is optional as shown below Red Yellow Green Black ...

Страница 18: ...ires connection firstly rotate FUNCTION rotary switch to REARTH press START button to start testing During testing display countdown and process bar indicator Stable earth resistance value is shown when finish testing Press SET button the earth resistance rC of auxiliary current electrode C H and earth resistance rP of auxiliary voltage electrode P S will be displayed and then automatically return...

Страница 19: ...ercial use power supply system otherwise the breaker may start it is dangerous Using 2 wires simple method for measuring earth resistance try to choose a earthing body which has a small re value as auxiliary earthing electrode so that the reading value is more close to the real value The metal pipes metal fire hydrant have priority in choosing auxiliary earthing electrodes 2 wires method This meth...

Страница 20: ...imple method for measurement of earth ground resistance its reading on tester is the total value of earth ground resistance value of measured earthing object and that of commercial earthing object that is R RX re In which R 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 Black Red Tran...

Страница 21: ...rding to formula ρ 2πaR Ωm calculating soil resistivity ρ its unit is Ωm in which a electrode distance R soil resistivity between electrode P S ES 4 pole method Wenner method Connect testing wires as shown below pay attention to the distance between auxiliary earthing rods and the embedding depth Respectively insert C H P S ES E auxiliary earthing rods deep into the earth in a straight line and th...

Страница 22: ...t turn off for each startup 10 Alarm Settings After startup rotate FUNCTION rotary switch to select function press button for a brief time to open or shut off alarm function press button for a long time about 3 seconds to enter alarm critical value settings press or to change current digital press button to move cursor and then press button to store and exit When measurement value is larger than a...

Страница 23: ...ction of computer with RS232 communication wire of the tester switch on the tester and run monitoring software and if the software displays that interface is open and the connection is successful then it can read the stored historical data upload to company and preserve Monitoring software has the function of online real time monitoring and historical inquiry dynamic display with alarm value setti...

Страница 24: ...Rod 4 PCS Standard testing Wire 4 wires each for red 20m black 20m yellow 10m and green 10m Simple testing Wire 2 wires each for red 1 6m and black 1 6m Monitoring Software Disk 1 Copy RS232 Communication Cable 1 PC Manual Warranty Card Qualification Certificate 1 Copy ...

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ETCR 3000B, Руководство пользователя

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