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Insulation Resistance Testers

Models DET3 and DET4 Contractor Series

You are here:  DET3 and DET4 Series Selection Guide/Specifications
Navigation:  Insulation Resistance Tester Index > Megger Product Index >  
   DET3/DET4 Series Description  > DET/ART Testing > Ordering Details >
 
Selection Guide
Models DET3TD DET3TA DET3TC DET4TD
2-wire resistance Yes Yes Yes Yes
3-wire resistance Yes Yes Yes Yes
4-wire resistance       Yes
ART (Attached Rod Technique) Resistance Measurement     Yes
 
 
Resistance Range

 
0.01 to 2000 Ω
2% ± 3digits
 
0.01 to 2000 Ω
2.5% ± 3digits
of scale length
0.01 to 2000 Ω
2% ± 3digits
 
0.01 to 2000 Ω
2% ± 3digits
 
Earth Voltage Range 0 to 100V 0 to 100V 0 to 100V 0 to 100V
Earth Current Range (with optional current measuring clamp)    

0.5mA to 19.9A
 

 
Display Digital Analog Digital Digital
 
 
Specifications
Resistance range

Test frequency

  0.01 to 2000 autoranging   128 Hz
Accuracy

Test voltage

  2% ±3 digits (digital models)   25 V or 50 V, user selectable (factory setting
50 V)
  2.5% of scale length (analog model)    
Earth voltage range

Test current

  0 – 100 V   450 micro-amps at 25 V or 50 V (selectable),
4.5mA at 25 V
Earth voltage accuracy

Noise rejection

  2% ±2 V   40V pk to pk
2-wire test

Noise check

  Yes, all models   Automatic (by selector switch DET3TA)
3-wire test

C spike check

  Yes, all models   Automatic (by pushbutton DET3TA)
4-wire test

P spike check

  DET4TD   Automatic (by pushbutton DET3TA)
ART (Attached Rod Technique)

Maximum current loop resistance

  with current measuring clamp (DET3TC)   100 k-ohms, 5 k-ohms for
0.01 ohm resolution for readings below 19 ohms
Ground current range

Maximum voltage probe resistance

  (with current measuring clamp) 1 mA to 19.9 A (DET3TC)   100 k-ohms, 5 k-ohms for
0.01 ohm resolution for readings below 19 ohms
Display

Battery type

  LCD (moving coil meter for analog model)   8 ea. 1.5 V AA cells
Safety

Battery life

  EN61010-1 CAT IV 100 V   3 hours, 700 consecutive tests
Terminals

Dimensions

  4 mm plug type (test leads)   8" x 5.7" x 3.2"  (203mm x 148mm x 78 mm)
Ingress protection

Weight

  IP54   2.2 lb (1 kg)
EMC

Operating temperature range

  Meets the requirements of EN61326-1:1998 for use in heavy industrial areas   -5º to +131º F (-15º to +55º C);
DET3TA: -4º to +122º F (-20º to +50º C)
Humidity

Storage temperature range

  95% RH non-condensing at 104º F (40º C)    -40º to +158º F (-40º to +70º C)

 

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Macey's Electrical Pty Ltd
ABN 17 344 601 468
Unit 1, 49 Gavenlock Road,  Tuggerah,  Sydney  Australia  2259

 

Phone: 61 2 4353 4644 

Mobile: 0412 678 925

Fax: 61 2 4353 4424

mailto:sales@maceyselectrical.com.au
 

Copyright: 1978 to 2007                                                   Last update: Friday, 03 October 2008