WIKA T32.xS - Manual (Page 10)

GB
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
configuration. The evaluation system must therefore interpret a loop
current of < 3.8 mA as a fault condition.
With certain inadmissible configurations (e.g. with deactivated write-protection) the
transmitter likewise generates an error signal. In order to find the reason behind the
error signal, the diagnostic functions available over HART ® should be used. Such
functions are offered, for example, in the WIKA_T32 configuration software (free
download from www.wika.com).
2.5 Write protection
The T32.xS offers a write protection functionality in order to prevent accidental
configuration 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