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MEGGER-DET4TC2+ KITS

Update Terakhir
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09 / 12 / 2019
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1 Unit
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54 kali

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Detail MEGGER-DET4TC2+ KITS

Inden 4 s/ d 6 minggu ------------------------- DET4TC2 + KITS = ( DET4TC2+ Clamps plus Professional Ground Testing Kit ( 6320-245) ) Description Megger’ s DET4 family of ground testing instruments offers a comprehensive solution to your ground stake and soil resistivity testing needs. The basic kit option comprises, the instrument, test leads, stakes, batteries and calibration certificate are delivered in a tough carry case which has space to accommodate all the instrument accessories - everything you need to start testing in one kit. The DET4TC2 and DET4TCR2 are designed for extended temperature range use with an IP54 rated enclosure making them genuinely outdoor instruments. The instrument provides all the functions required for ground system testing: variable frequency 2 pole, 3 pole, 4 pole, Attached Rod Technique ( ART) , stakeless, leakage current and ground noise voltage measurement. The instrument is easy to use with a large rotary selector switch and one-press test button, both of which permit operation with gloved hands. Unlike some instruments, the design negates the need for a shorting link when making two pole measurements. There are no hidden functions with the instrument: clearly labelled auxiliary controls are used to select the test frequency ( 94 Hz, 105 Hz, 111 Hz and 128 Hz) , output voltage ( 50 V or 25 V where local standards apply) and to switch the backlight on or off. The optional ICLAMP augments the traditional fall-ofpotential measurement method with ART ( Attached Rod Technique) which allows electrode testing without disconnection and also leakage current measurements down to 1 mA. A second optional clamp, the VCLAMP, enables true stakeless measurements to be made in situations where driving stakes is not practical. The clear, easy-to-read display provides excellent contrast and viewing angle making the instrument ideally suited to outdoor use. The display is backlit, extending the operational environment of the instrument to cable cellars and other dark locations. The instrument offers a wide measurement range of 0.01© to 200k© , ground noise voltage measurement from 1 V to 100 V and ground current from 1 mA to 20 A. Accurate results can be obtained in electrically noisy environments since the instrument is capable of rejecting noise voltages of 40 V peak to peak and the user can select different test frequencies to minimise the effect of interference. The DET4TC2 Digital Ground tester is powered from 8 AA batteries which are widely available and deliver excellent testing time. The DET4TCR2 is powered from rechargeable AA cells. The battery charger is built in and the instrument is supplied with an AC/ DC adaptor. For both instruments, the battery status is display using a bar-graph. The Megger ground testers comply with stringent safety standards and are rated to 100 V CAT IV. They also have selectable 25 V or 50 V output for compliance with IEC 61557-5. --------------------------------------------------- Specifications Resistance range 0.01© to 200k© autoranging Analog model 2.5% of scale length Digital models 2P measurements 2% ± 3 digits 3P measurements 2% ± 3 digits 4P measurements 2% ± 3 digits ART measurements 5% ± 3 digits Stakeless measurements 7% ± 3 digits Maximum probe resistance Rp limit: 100k½ ( 50V output voltage) Rc limit: 100k½ ( 50V output voltage) Limits reduced to 50k½ for 25V output voltage Limits reduced to 5k½ for 0.01 ½ resolution Earth voltage range 0 – 100 V Earth voltage accuracy 2% ± 2 V 2-wire test Yes, all models 3-wire test Yes, all models 4-wire test DET4TD, DET4TC2, DET4TCR2 ART ( Attached Rod Technique) DET3TC, DET4TC2 and DET4TCR2 Ground current range ( with current measuring clamp) 0.5 mA to 19.9 A Ground current accuracy 5% ± 3 digits Display LCD ( moving coil meter for analog model) Test frequency 128 Hz Test voltage 25 V or 50 V, user selectable ( factory setting 50 V) Test current 450 micro-amps at 25 V or 50 V ( selectable) , 4.5mA at 25 V Noise rejection 40V pk to pk Noise check Automatic ( by selector switch DET3TA) C spike check Automatic ( by pushbutton DET3TA) P spike check Automatic ( by pushbutton DET3TA) Maximum current loop resistance 100 k-ohms at 50V, 50 k-ohms at 25 V and 5 k-ohms for 0.01 ohm resolution for readings below 19 ohms Maximum voltage probe resistance 100 k-ohms at 50V, 50 k-ohms at 25 V and 5 k-ohms for 0.01 ohm resolution for readings below 19 ohms Battery type 8 1.5 V AA cells ( 8 1.5 V AA NiMH rechargeable cells – DET4TCR2) Battery life 3 hours, 700 consecutive tests Safety EN61010-1 CAT IV 100 V Terminals 4 mm plug type ( test leads) Ingress protection IP54 EMC Meets the requirements of EN61326-1: 1998 for use in heavy industrial areas Dimensions 8 x 5.7 x 3.2 in. ( 203 x 148 x 78 mm) Weight 2.2 lb ( 1 kg) Operating temperature range -.5º to + 131º F ( -15º to + 55º C) ; DET3TA: -4º to + 122º F ( -20º to + 50º C) Storage temperature range -40º to + 158º F ( -40º to + 70º C) Humidity 95% RH non-condensing at 104º F ( 40º C)
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