Wika T32.xS Manual do Utilizador descarregar pdf (Página 10)

11583631.02 11/2010 GB/D/F/E

WIKA safety manual temperature transmitter T32.xS

WARNING!

With certain device-side diagnosed hardware errors, the device gives a

downscale error signal with a loop current of < 3.8 mA, and can however,

for technical reasons, also ensure no signal ≤ 3.6 mA with the appropriate

conguration. The evaluation system must therefore interpret a loop

current of < 3.8 mA as a fault condition.

With certain inadmissible congurations (e.g. with deactivated write-protection) the

transmitter likewise generates an error signal. In order to nd the reason behind the

error signal, the diagnostic functions available over HART

should be used. Such

functions are oered, for example, in the WIKA_T32 conguration software (free

download from www.wika.com).

2.5 Write protection

The T32.xS oers a write protection functionality in order to prevent accidental

conguration changes. The write-protection password is factory set to "0".

A T32.xS temperature transmitter with SIL option will only work once the

write protection has been activated. Without write protection activated,

such a transmitter will signal an error.

2.5.1 Operation of the write protection

The write protection function is activated via a passsword (numbers in the range 0 to

65535 are allowed) and through a switch (write protection activate/deactivate).

A change in the state of the write protection switch is only possible after the successful

input of the password. The password can be altered via its own menu.

CAUTION!

There is absolutely NO possibility of retrieving a forgotten password! The

only possibility is for the password to be reset at the factory!

Also, activation of the write protection is only possible through the input of

the correct password!

2. Safety

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Wika T32.xS Manual do Utilizador Página 10