Illustrations - Megger DET5/4R Guia Del Usuario

Illustrations

Fig.1 DET5/4 Features and controls
Fig.2 A method of connection where fault
conditions may occur
Fig.3 Low battery voltage indication
Fig.4 High Current spike resistance warning
Fig.5 Excessive 'Noise' warning
Fig.6 Reverse polarity indication
Fig.7 Fall-of-Potential method for measuring
resistance of an earth electrode
Fig.8 Fall-of-Potential method using single
lead to the earth electrode
Fig.9 Resistance areas associated with
electrode and Current spike
Fig.10 The 61,8% Rule method
Fig.11 Connection for Slope method
DET 5/4R Battery Charger Power cord
If the power cord plug is not suitable for your type of socket outlets, do not use an adaptor. You should use a
suitable alternative power cord, or if necessary change the plug by cutting the cord and fitting a suitable plug.
The colour code of the cord is:
If using a fused plug, a 3 Amp fuse to BS 1362 should be fitted.
Note: A plug severed from the power cord should be destroyed, as a plug with bare conductors is hazardous in
a live socket outlet.
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8 Fig.12 Resistance curve from Slope method
9 Fig.13 Possible results from several Slope
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11 Fig.14 'Dead' earth testing
11 Fig.15 Test spike positions for BS7671
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Fig.16 Determining 'Touch' potential
15 Fig.17 Determining 'Step' potential
Fig.18 Soil resistivity measurement
16 Fig.19 Resistivity calculation Nomogram
Fig.20 Continuity testing
17 Fig.21 Block diagram of instrument circuit
17 Fig.22 Instrument Accessories
Earth (Ground) Yellow / Green
Neutral Blue
Phase (Line) Brown
tests
method tests
(16th Edition IEE Wiring Regulations
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