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SEFELEC1500M Instructions
55
V1.06
7.5.
SELECTING THE MEGOHM PER KILOMETER MODE
The SEFELEC1500M proposes to indicate cable resistance values expressed as insulation per
kilometre, with this formulation generally being that specified in the manufacturer's specifications
or the standards. Cables can be comprised of several independent conductors connected to-
gether in parallel for the measurement and the device will recalculate the value for 1 conductor.
The insulation value displayed is the result of the following calculation:
Rdisplayed = (Rmeasured x Length in metres x Number of wires) / 1,000
Press the active area of the "Megohm.km" line to activate and configure this mode:
Activate or deactivate the Megohm.km mode by selecting ON or OFF.
Then enter the cable length in metres and the number of cables in parallel.
For example:
A cable 100 metres long with 5 conductors in parallel gives an insulation value of 500 MΩ in
normal mode.
If the Megohm.km function is activated we then obtain a displayed value of:
Rdisplay = (500
MΩ x 100 m x 5) / 1,000 = 2,500 MΩ.KM = 2.5 GΩ.KM
Содержание SEFELEC 1500M
Страница 1: ...SEFELEC 1500M PENT6570 version 1 06 January 2020 User Manual...
Страница 34: ...SEFELEC1500M Instructions 33 V1 06 Continue in the same way to set the time and validate with OK...
Страница 122: ...SEFELEC1500M Instructions 121 V1 06 Diagram no 2 Running an insulation test Memory 5 Test result fail...
Страница 123: ...SEFELEC1500M Instructions 122 V1 06 Diagram no 3 Execution of a sequence Memory 3 Result pass PLC SYSTEM DEVICE...
Страница 137: ...SEFELEC1500M Instructions 136 V1 06 In the last two windows opened click on OK 14 5 CONFIGURING THE ETHERNET CONNECTION...
Страница 163: ...SEFELEC1500M Instructions 162 V1 06 20 EU DECLARATION OF CONFORMITY...
Страница 164: ...SEFELEC1500M Instructions 163 V1 06...