Télécharger Imprimer la page

Megger DET5/4R Guide De L'utilisateur page 4

Publicité

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.
4
All manuals and user guides at all-guides.com
Earth (Ground)
Neutral
Phase (Line)
8
Fig.12 Resistance curve from Slope method
tests
9
Fig.13 Possible results from several Slope
10
method tests
11
Fig.14 'Dead' earth testing
11
Fig.15 Test spike positions for BS7671
12
(16th Edition IEE Wiring Regulations
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
Yellow / Green
Blue
Brown
19
20
21
22
23
24
26
27
28
29
34

Publicité

loading

Ce manuel est également adapté pour:

Det5/4d