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HMP240 series

M210300en User's Guide

3.4 Electrical connections

+ -

CURRENT/VOLTAGE

OUTPUTS

CH1+

CH1-

CH2+

CH2-

24 V +

OPENED COVER OF THE

+ -

CH1- and CH2- are connected

together internally

Do not use power supply

ground (-) as output signal

ground

POWER SUPPLY

HMP 243

Figure 3.6 Electrical connections

Power supply 24 VDC

24 VAC (see Chapter 3.4.1)

Output signals 0...20 mA

4...20 mA

0...1 V

0...5 V

0...10 V

Power supply ground (-) is connected to the housing with parallel connection

of 15 nF capacitor and 300 kΩ resistor.

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Vaisala HMP243 Guida Utente Pagina 17