ELECTRICAL TESTING AND SAFETY Earth testers
Contents
1. 1 Dindaeng Dindaeng Bangkok 10400 P01 2961 74 Tel 02 692 3980 Fax 02 692 3978 P01 2970 12 E mail sales asras com sales asras co th Website www asras com www asras co th France UNITED KINGDOM 190 rue Championnet Waldeck House Waldeck Road 75876 PARIS CEDEX 18 MAIDENHEAD SL6 8BR Tel 33 1 44 85 44 86 Tel 01628 788 888 Fax 33 1 46 27 95 59 Fax 01628 628 099 e mail export chauvin arnoux fr e mail info chauvin arnoux co uk www chauvin arnoux fr www chauvin arnoux co uk 906 211 048 Ed1 04 02 Characteristics subject to modifications according to technological developments aay CHAUVIN C A 6470N mg ARNOUX TERCAS CHAUVIN ARNOUX GROUP C A 6471 New earth and resistivity testers comprehensive accurate and suitable for all terrain use Earth C A 6470N TER 3 and resistivity testers INDUSTRY amp HOUSING 4 in 1 Earth e Resistivity e Coupling Continuity c a 6471 INDUSTRY 9 in 1 Earth e Selective earth Resistivity e Coupling Continuity Measurement of earth networks in parallel without disconnecting the earth and without rods e Possibility of selecting the measurement frequency e Automatic calculation of resistivity and coupling C A G470NTERC 38 amp C A 6471 Multi function testers e 3 pole and 4 pole measurements e Selective 4 pole measurements 2 clamps C A 6477 only Giant backlit e Resistivity Wenner Schlumberger LCD screen methods e2. ELECTRICAL TESTING AND SAFETY Earth testers gt 2 pole and 3 pole methods gt Easy to use gt Confirmation of the measurement by self diagnosis gt Designed for use in the field with leakproof on site casing and clearly readable display Specifications Measurement Type Resistivity Measurement range Resolution Accuracy No load voltage Frequency I C A 6421 I C A 6423 EARTH 2P amp 3P No 0 5 to 1 000 Q 0 01 to 2 000 Q 3 automatic calibres 10mQ 100mQ 1Q depending on calibre 5 0 1 2 1 count at full scale lt 24V lt 48 V 128 Hz Alarms Power supply 3 fault indicator LEDs to validate the measurement Display 8 x 1 5 V batteries Analogue 2 000 count digital LCD screen Electrical safety Dimensions weight IEC 61010 amp IEC 61557 238 x 136 x 150 mm 1 3 kg gt C A 6421 amp C A 6423 delivered with 1 carrying strap 8 x LR6 1 5 V batteries 1 operating manual in 5 languages gt C A 6421 gt P01123011 gt C A 6423 gt P01127013 Page i 40 gt For the C A 6421 and C A 6423 Carrying strap 0 1 A 250 V HRC fuses set of 10 1 5 V ALK LR6 battery 1 5 V ALK LR6 batteries x12 1 5 V ALK LR6 batteries x24 gt P01298005 gt P01297012 gt P01296033 gt P01296033A gt P01296033B ASRAS CO LTD 1694 1694 1 Prachasongkhro Road Dind
3. Earth coupling e Continuity amp resistance Connection Colour coded diagrams for connection the diff t Measurements possible even terminals PE to prevent errors with highly resistive soils Improved measurement quality due to high rejection of disturbance voltages Excellent accuracy and resolution Standard software for data recovery and processing of the results Direct access to the measurements by means of a switch Rugged leak proof and site proof box Direct access to configuration recording etc EARTH MEASUREMENTS EARTH MEASUREMENT WITH 3P METHOD The 3P method is the traditional method using rods to measure the resistance of an existing earth connection The C A 6470N amp C A 6471 can also be used to measure the resistances of the auxiliary rods RS and RH as well as any disturbance voltages Suitable for all types of measurement environments even the most difficult this method guarantees measurement of auxiliary rod resistances up to 100 kQ and disturbance voltages of 60 Vpeak 4P AND SELECTIVE 4P EARTH MEASUREMENT The 4P measurement method is particularly suitable for measuring very low earth resistances If there are several resistances connected in parallel it is possible to use the instrument with a clamp on ammeter to carry out selective measurements in order to avoid the effect of the parallel earth connections This selective 4P measurement method saves cons
4. R2 R1 2 2 Wenner method the distances between the 4 rods are identical d We 2 d RS SE Schlumberger method the distance between the 2 central rods S amp ES is A the distance between the 2 outer rods E amp H is 2d S d2 A2 4 RS SE 4 When it is possible to choose the position of the earth connection resistivity measurements can be used to check the soil and determine where the earth resistance will be lowest optimization of building costs The C A 6472 automatically calculates soil resistivity using the Wenner or Schlumberger methods as soon as the distances between the rods have been entered The resistances of the rods RE RES RS and RH can also be measured Reminder soil resistivity calculation methods C A 6470N C A 6471 3P method Se ee Measurement frequency 41 to 512 Hz Coupling measurement aP method CEEE a 0 001 to 10 Q yes 0 01 to1Q Earth measurement Range 0 01 to 500 Q with 2 clamps Resolution nn te Pcs e Manual 128 Hz 1 367 Hz 1 611 Hz 1 758 Hz Resistivity a e a e T A A AALL Type of measurement 2 wires or 4 wires e E a e e a e Memory Communication Dimensions weight Electrical safety STATE AT DELIVERY CA BATON aisestvecsseicadieiantienaneontcnuennans PO1126506 e C A 6471 E E E T P01126505 Delivered with 1 external mains charger data export software optical USB communication Delivered with 1 ext
5. aeng Dindaeng Bangkok 10400 Tel 02 692 3980 Fax 02 692 3978 E mail sales asras com www asras com www asras co th Expertise for Earths C A 6460 C A 6462 i 3 testers in one resistivity earth coupling E Validation of measurement through automatic check 3 lights indicate the presence of faults liable to impair measurement results Heavy duty on site case with cover for use on difficult grounds E Large LCD display with backlighting Fy obust and watertight the 60 and C A 162 are easy to use instruments designed specially f for use in the field Wherever you need to install an electric ground connection or certify an existing one the 60 and C A 162 help you perform accurate reliable and quick diagnosis while providing the friendliest and safest test environment Using the conventional rod based method the C A 6460 and C A 6462 measure resistivity 4 wire connections ground resistances 3 wire connections and coupling between electrically independent earth electrodes 4 wire connections They are equipped with 4 color coded terminals for easy connection and a captive bar for changing from a 4 wire to a 3 wire measurement very quickly and easily Plus the C A 6462 is fitted with a rechargeable battery with an internal charger Once the rods have been installed and connected named E ES S and H begin measurement by simply pressing the push button For maximum accuracy the range and c
6. ernal mains charger data export software optical USB communication lead lead 5 operating manuals one per language on CD ROM 5 simplified operating manuals 2 C182 clamps with 2 safety leads 5 operating manuals one per language on CD ROM 5 simpli each in a different language 5 descriptive labels each in a different language fied operating manuals each in a different language 5 descriptive labels each in a different lan guage 1 carrying bag ACCESSORIES SPARES e Adapter for battery recharging on vehicle cigarette lighter c0essseesseeeesees P01102036 GB ma ins power cable siciiiiccdcdenac ccewsirciwscsnractcnmvadsccumiacraueracismmerndiaeseruewaeesinetens P01295253 e Set of 10 fuses type F 0 63 A 250 V 5x20 mm 1 5 KA sssssssnnnssnnnnnnnnnnnnnnnnnn ATOO94 e Adapter for battery recharging from MAINS 0c scceeeeeee seen eeeeeeeeeeeeeeeeeeeeeeeeaes PO01102035 Battery Pee ccnsvenuncueinicanennnsecsan wontons aa E aE EENE AAE EAS ESEO AENEAN EAEE P01296021 e Optical RS communication cable ssssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn P01295252 e Optical USB communication cable ccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneenenaes HX0056 Z e Earth kit for SP method 50 M aaannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn P01102021 Comprising 2 T shaped rods 2 reels of cable 50 m red 50 m blue 1 cable winder 10 m green 1 malle
7. iderable time because it is no longer necessary to disconnect the earth resistance before measuring it The 4P measurement method is more accurate and can be used to measure low earth resistances The results obtained with this measurement method are ideal for the requirements of energy distributors such as EDF EARTH LOOP MEASUREMENT WITH 2 CLAMPS In the event of a system with parallel earth connections 2 clamp on ammeters can be used with the C A 6470N amp C A 6471 to provide accurate earth resistance measurements The principle of this method involves placing 2 clamps around the earth conductor tested and connecting each of them to the instrument One clamp injects a known signal 32 V 1367 Hz while the other clamp measures the current flowing in the loop This method saves considerable time when earth testing because it is no longer necessary to set up auxiliary rods or disconnect the earth connections which is often time consuming MEASUREMENT OF EARTH COUPLING To estimate the reciprocal influence of 2 normally unrelated earth resistances you must calculate the coupling coefficient which should be as low as possible The operator takes 3 successive measurements 2 classic SOIL RESISTIVITY MEASUREMENT earth measurements using the classic 3P R1 amp R2 method and 1 earth measurement using the 2P R1 2 method The instrument then automatically calculates the coupling resistance Rc R1
8. ndard carrying bag containing 2 reels of cable 100 m green 30 m black and 2 T rods e C A647X continuity kit MO pOoS ItION ss ssssss ssuuuusnnnsnnnnunnnnnnnnnnuunnnnnnnnnnnnnnnnnnnn P01102037 Comprising 4 cables 1 5 m long terminated by 4 mm banana plugs 4 crocodile clips 2 test probes DC DC adapter 5 m connection cable for vehicle cigarette lighter DataView PC software sssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn a P01102058 ASRAS CO LTD 1694 1694 1 Prachasongkhro Road A ffs S Dindaeng Dindaeng Bangkok 10400 Tel 02 692 3980 Fax 02 692 3978 E mail sales asras com www asras com www asras co th FOR THE C A 6471 ONLY e MN82 clamp diam 20 mm delivered with 1 cable 2 m long for ES terminal connection ws PO01120452 e C182 terminal diam 20 mm delivered with 1 cable 2 m long for ES terminal connection ss PO01120333 For assistance and ordering AthanA e 906211178 Ed 1 09 2008 Non contractual document Confirm specifications before ordering
9. ons 62 method This method using 2 auxiliary rods measures up to 2000 Q even in worst case conditions Ground connection to be measured E X 0 10 62 10 100 4 wire measurements are considered better than 2 wire because they free you from cord resistance which is often too high MEASUREMENT CHARACTERISTICS Measurement from 0 to 2000 Q within three automatic ranges Measurement range Resolution Test current Accuracy 0 00 19 99 Q 0 01 Q 10 mA 2 1pt Measurement frequency 128 Hz Conditions for use 10 55 C 20 90 RH Open circuit voltage lt 42 V peak Response time between 4 and 8 seconds depending on measurement conditions OTHER FEATURES Power supply C A 6460 C A 6462 8 alkaline 1 5 V LR14 batteries or same size Rechargeable NiMH batter Average charge life under permanent control C A 6460 C A 6462 Watertight IP 53 case Weight about 2 8 kg C A 6460 and Dimensions 273 x 247 x 127 mm about 3 3 kg C A 6462 COMPLIANCE TO STANDARDS Electric safety double insulation device according to EMC EN 61 000 3 EN 61 000 4 NF EN 61010 IEC 61557 C A 6460 C A 6462 delivered with batteries and user s manual delivered with 2 m European type mains supply lead _in 5 languages and user s manual in 5 languages SR ACCESSORIES P01 1018 23 P01 1018 25 REPLACEMENT PARTS EG spas co LTo 1694 1694 1 Prachasongkhro Road E P01 2960 27 r A P01 2960 2
10. t 5 spade lug 4mm banana plug adapters 1 carrying bag e Earth kit for 3P method 100 M nnnnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn P01102022 Comprising 2 T shaped rods 2 reels of cable 100 m red 100 m blue 1 cable winder 10 m green 1 mallet 5 spade lug 4 mm banana plug adapters 1 carrying bag e Earth kit for 3P method 150 M annsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn P01102023 Comprising 2 T shaped rods 2 reels of cable 150 m red 150 m blue 1 cable winder 10 m green 1 mallet 5 spade lug 4 mm banana plug adapters 1 carrying bag e Earth and resistivity kit 100 mM siisisisiccenictiniaesmisanuiennsawnasenntaenvorbanwnnsenadaneenses P01102024 Comprising 4 T shaped rods 4 reels of cable 100 m red 100 m blue 100 m green 30 m black 1 cable winder 10 m green 1 mallet 5 spade lug 4 mm banana plug adapters 1 prestige carrying bag with specially designed compartment for the C A 647x e Earth and resistivity kit 150 M snnnsnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn P01102025 Comprising 4 T shaped rods 4 reels of cable 150 m red 150 m blue 100 m green 30 m black 1 cable winder 10 m green 1 mallet 5 spade lug 4 mm banana plug adapters 1 prestige carrying bag with specially designed compartment for the C A 647x e Additional resistivity kit 100 m sssssssnnnssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn P01102030 sta
11. ur rent selection is carried out automatically tt 12 3 x 20 vat ah CHARGE Sy Hr H 2 oO S Y i f 30V CAT IN e FAULT e gt 20V B bs AUTO CHECK E H CIRCUIT i entary contt HIGH RESISTANCE HIGH NOISE L ES S CIRCUIT The measurement result and its unity are read directly on the large backlit digital screen Three lights indicate any defect or interference liable to impair measurement results red flashing FAULT LED E H indicates a fault in the cur rent circuit voltage at terminals gt 30 V peak red flashing HIGH RESISTANCE LED ES S voltage circuit resistance too high R 50kQ red flashing HIGH NOISE LED ES S voltage circuit noise gt 13 V peak EVERY SAFE TO USE When it comes to safety the C A 6460 and C A 6462 meet the strictest of standards These instruments are very suitable to severe environ ments parasitic voltages high telluric currents highly resistive auxiliary connections etc TEST C A 6462 EARTH amp RESISTIVITY TESTER ae SAM aa H g me a Sr s E OS i A 4 oe oe a eres C ki ir gt i Lie r ime a 2 d i fl j E nE E A l Y P i Bt Mini k r a A i a Re i pe Der Be as La 4 Auli ea z Ta USE APPLICATIONS 4 rod method Depending on the soil s properties this measurement defines the best positions depth and geometry necessary for installing electric ground connecti
Download Pdf Manuals
Related Search