Weidmuller DPARTD - Universal glavanically isolated signal co Manual do Utilizador descarregar pdf (Página 16)

DPA/RTD

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Operation

General

The DPA/RTD allows you to set two independent trip points against

the temperature measured by a two or three wire RTD (normally

Pt100 type). The units feature automatic lead length compensation

to compensate for lead resistance. They are specially built to suit a

particular temperature range and RTD type.

Setup

The alarm relay coils operate according to each setpoint/deadband

configured via front panel multiturn potentiometers. Internal push

fit jumpers determine the alarm type (high or low acting) and coil

nergisation (normally energised/de-energised).

DPA/RTD block diagram.

Alarm 1

Power

Supply

RTD Temperature

measurement

Alarm 2

°C

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 22 23 24

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