Wika T32.xS Manual do Utilizador descarregar pdf (Página 7)

7WIKA safety manual temperature transmitter T32.xS

11583631.03 08/2014 GB/D/F/E

The temperature transmitter achieves, for all recognised connections for temperature

sensors, an SFF (Safe Failure Fraction) sucient for SIL 2 of > 90 %.

The instrument generates a current signal in the approved measuring mode of a

nominal 4 … 20 mA, that is dependent upon the sensor signal. The eective range of

the output signal limited to a minimum of 3.8 mA and a maximum of 20.5 mA (factory

setting in basic conguration).

WARNING!

Do not exceed the specications for model T32.xS given in the data

sheet and operating instructions. In order to ensure a safe functionality

of the current output, the correct terminal voltage must be present in the

instrument.

The following terminal voltage limits apply:

Instrument model Terminal voltage limits

T32.1S.000-S

T32.3S.000-S

DC 10.5 ... 42 V

T32.1S.0IS-S

T32.3S.0IS-S

DC 10.5 ... 30 V

T32.1S.0NI-S

T32.3S.0NI-S

DC 10.5 ... 40 V

T32.1S.0IC-S

T32.3S.0IC-S

DC 10.5 ... 30 V

WARNING!

Only the temperature sensors listed in chapter 2.1 are approved for use in

a safety-related application.

The following sensors and operating modes are NOT allowed for

operation in a safety-relevant application:

■

Potentiometers

■

Other resistance sensors

■

Other mV sensors

■

Dierential mode in duplex sensor operation

2. Safety

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Wika T32.xS Manual do Utilizador Página 7