Vaisala WINDCAP WS425 Guide de l'utilisateur télécharger pdf (Page 90)

User's Guide ______________________________________________________________________

Figure 40 and Figure 41 below illustrate the wiring of heated

WMT700 instruments.

1301-018

Figure 40 Wiring of Heated WMT700 Versions, Part 1

Note that when using separate power supplies for operating and

heating, the minus (-) terminals of the power supplies are

connected together by an additional wire. Use a minimum

0.75 mm

wire for connecting the (-) terminals together.

1307-003

Figure 41 Wiring of Heated WMT700 Versions, Part 2

CAUTION

There are two terminals connected in parallel for both positive and

negative rails of the heating voltage for the maximum current capacity. In

case the connection cable has parallel supply wires, they all have to be

connected to ensure current capacity. Leaving one terminal unconnected

or connecting it to the ground may cause a WMT700 malfunction or a

short circuit in

the power supply.

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Vaisala WINDCAP WS425 Guide de l'utilisateur Page 90