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Megger Ground Resistance Test Equipment

 
  Selection Guide

Selection Guide for DET3
Model
DET3TD

DET3TA

DET3TC
2-wire Resistance
3-wire Resistance
4-wire Resistance      
ART
(Attached Rod Technique)
   
Resistance Range 0.01 to 2000
2% ± 3d
0.01 to 2000
2.5% of scale length
0.01 to 2000
2% ± 3d
Ground Voltage Range 0 to 100 V
Ground Current Range (with optional current measuring clamp)   0.5mA to 19.9A
Display Digital Analog Digital



Selection Guide for DET4
Model
DET4TD2

DET4TR2

DET4TC2

DET4TCR2
Earth Tests
Resistance max. (2,3 and 4 pole) 0-20kΩ 0-20kΩ 0-200kΩ 0-200kΩ
Max Resolution 0.01Ω 0.01Ω 0.01Ω 0.01Ω
2-Pole Resistance AC
P or C Spike resistance high indication
Max spike resistance 100kΩ 100kΩ 200kΩ 200kΩ
Selective (ART) & Stakeless ability    
Ground Current measurement    
Noise interference indicator
Terminal links for 2 or 3 pole tests NO NO NO NO
Ground Voltage measurement
Wenner - calculation pf ρ (rho) PC Software PC Software PC Software PC Software
Schlumburger - calculation pf ρ (rho) PC Software PC Software PC Software PC Software
Output
Voltage 25 / 50V 25 / 50V 25 / 50V 25 / 50V
Actual test current/s specified 4.5mA, 0.45mA 4.5mA, 0.45mA 4.5mA, 0.45mA, 0.045mA 4.5mA, 0.45mA, 0.045mA
Test frequency 128Hz 128Hz 94, 105, 111, 128Hz 94, 105, 111, 128Hz
Supply
Rechargeable    
Charge from vehicle battery (12V)    
Battery life - number of ground tests 700 tests 700 tests 700 tests 700 tests
Battery status with remaining life
Other features
Back light on display
IP Rating IP54 IP54 IP54 IP54
High noise rejection 40V pk 40V pk 40V pk 40V pk
Installation Cat. Rating CAT IV 100V CAT IV 100V CAT IV 100V CAT IV 100V
Warranty 3 year 3 year 3 year 3 year
Calibration Certificate Supplied
Software Supplied



Selection Guide for High Sensitivity Model
Model No. Range Resistance Power Source Display
DET2/2 0.010 Ω — 19.99 kΩ Rechargeable Battery Digital
 
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