New Earth Testers from Megger Dover 1

New Earth Testers from Megger Dover 1

Existing products n Direct 2 terminal & 3 terminal earth electrode testing • DET 62 D • DET 3/2 n 2 & 3 terminal and 4 terminal soil resistivity testing • DET 5/4 D • DET 5/4 R • DET 2/2 2

Products being replaced n DET 62 D only at this stage n New family to replace DET 62 D • DET 3 TD Two & three pole ground tester digital display • DET 3 TC Two & three pole ground tester with ART capability, digital display • DET 3 TA Two & three pole ground tester analogue display • DET 4 TD Two, three and four pole ground tester digital display 3

New product common philosophy n Intuitive to use n One button operation n Automatic checking to avoid mistakes and poor connections, indicated on display n Complete and ready to start testing kit, including calibration certificate n Competitively priced to sell n Combination of features, benefits and price makes these ground testers the most attractive on the market 4

New product common features n Based on building wiring housing n Delivered in tough carry case n Includes stake and wire kit with each model n Very high quality large and easy to read LCD n Includes batteries n Has quick start guide on the lid n Easy to use wearing gloves n Comes with calibration certificate as standard n Three year warranty n Avoids language variants for easy stock holding 5

New Digital Earth Tester housing 6

Basic specification – DET 3 TD n 2 terminal test, no links required n 3 terminal earth electrode test n Earth voltage measurement n LCD display n Automatic checking of • • • Current spike resistance Voltage spike resistance Earth noise voltage Blown fuse Battery status 7

Basic specification – DET 3 TC n 2 terminal test, no links required n 3 terminal earth electrode test without disconnection using optional ICLAMP (Attached Rod Technique, A. R. T. ) n Earth voltage measurement n Earth current measurement using optional ICLAMP n LCD display n Automatic checking of • • • Current spike resistance Voltage spike resistance Earth noise voltage Blown fuse Battery status 8

Measuring current with the DET 3 TC and ICLAMP 9

The Attached Rod Technique with ICLAMP 10

How the A. R. T. technique works n The test works by • Measuring the current flowing through the earth electrode under test that is generated by the DET 3 TC at 128 Hz • Ignoring the current flowing from the DET 3 TC into the parallel connections and other earth currents normally flowing in the electrode under test n This is a huge benefit because • It allows the user to test the electrode without disconnecting it from the system, avoiding the complication of system shutdown or auxiliary temporary electrodes • It means that the connections to the electrode under test can be left un-disturbed 11

Basic specification – DET 4 TD n 2 terminal test, no links required n 3 terminal earth electrode test n 4 terminal soil resistance test up to 2000 ohms n Earth voltage measurement n LCD display n Automatic checking of • • • Current spike resistance Voltage spike resistance Earth noise voltage Blown fuse Battery status 12

DET 3 TA – analogue model 13

Basic specification – DET 3 TA n 2 terminal test, no links required n 3 terminal earth electrode test n Earth voltage measurement n Analogue display n Automatic checking of • Current spike resistance n Manual checking of • • Voltage spike resistance Earth noise voltage Blown fuse Battery status 14

Rear connection panels n Terminals colour coded to lead set n ICLAMP unique connector 15

Common specifications - electrical n n n Resistance range: 0. 01 to 2000Ω Resistance accuracy: 2% ± 3 digits (Except DET 3 TA) Earth voltage range: 0 – 100 V Earth voltage accuracy: 2% ± 2 V (Except DET 3 TA) Earth current range (DET 3 TC + ICLAMP): 0. 5 m. A to 19. 9 A Test frequency: 128 Hz Test voltage: 25 V or 50 V selectable (Factory set 50 V) Earth noise rejection: 40 V peak to peak Battery type: 8 off AA cells Approximate battery life: 800 consecutive tests Safety: EN 61010 -1 CATIV 100 V EMC: EN 61326 -1: 1998 heavy industrial 16

Common specifications - Mechanical n IP 54 n Terminals: 4 mm plug type n Dimensions: 203 x 148 x 78 mm n Weight: 1 kg n Operating temperature range (digitals): -15 to 55°C n Operating temperature range (analogue): -20 to 50°C n Storage temperature range (all): -40 to 70°C n Humidity: 95% RH non-condensing at 40°C 17

Spares and Accessories n Spare replacement parts • Two earth test stakes: 6220 -804 • 3 replacement test leads: 6220 -805 (3 m, 10 m, 15 m) • 4 replacement test leads: 6220 -806 (3 m, 10 m, 15 m) n Accessories • Terminal adaptor set (4): 6220 -803 – Used when the customer wants to connect non standard leads without 4 mm connectors fitted • Current clamp: ICLAMP • Spare carry case: 5410 -409 18

Accessories – terminal adaptor set 19

Accessories n ICLAMP • Extra cost n Earth test spikes • Included n Lead set • Included n Carry case • Included n And not shown • Standard calibration certificate included 20

Pricing strategy n To be attractive to customers with a blend of quality, performance and value for money n To be attractive to distributors by being profitable and easy to stock 21

Features and benefits n Delivered in hard carry case • Everything you need in one box • Customers will probably leave the instrument in the case while testing to protect it n Delivered ready to use • Nothing else to buy – batteries, stakes and wire included • Calibration certificate – many users insist on this before use n CATIV rated • Safety class rating in “outdoor” environment required by some customers • LEM Handy Geo only specified to CATII 22

Features and benefits n Unique to new family at this price level • Attached Rod Technique – currently the LEM GEO-X is the only other product that offers this at a far higher price and as part of a much more complex instrument • No external links required for 2 terminal testing – nothing to lose and nothing to forget n We are strong with • • • Battery status indicator – not just a “low” warning IP rating 54 – only equalled by Kyoritsu Temperature range – the widest Voltage reading (LEM 30 V against our 100 V) Best noise rejection Equal best accuracy with Alphatek and Extech 23

Features and benefits n We are strong with • Using 128 Hz as our test current – close to mains frequency but easy to detect. Industry standard • 2000 ohm measurement maximum • Instructions on tester • Stake and wire kit included n Conclusion • We have the best blend of specification, included accessories, ease of use and price on the market 24

A few potential customers n Specialist earthing contractors n Large electrical contractors n Electricians in markets with significant domestic and light industrial T T systems n Maintenance companies and personnel n Insurance inspect/test Engineers n Utilities n Mobile/radio communications infrastructure test and installation contractors 25

Available? n New family in stock Dover now except. . . n DET 4 TD available end of November n DET 62 D • Declare intention to be made obsolete December 2005 • Last orders accepted December 2006 • Repaired and calibrated for a further 5 years. 26