Thyracont VSH82, Руководство по эксплуатации, Страница: 45 / 52

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Readjustment via RS485
Readjustment on atmosphere or zero pressure is also possible by means of
software commands via RS485 interface.
To avoid unintended adjustment the corresponding adjustment point for
atmosphere or zero pressure must be unlocked before the actual adjustment can
be performed.
Example (for address-switch in position "1")
:
Action Telegram to
transducer Answer telegram
from transducer
Unlock adjustment point for
atmosphere pressure
Adjustment on atmosphere "001j1l
C
R
"
"001j100023a
C
R
"
"001j1l
C
R
"
"001j100023a
C
R
"
Unlock adjustment point for
zero pressure
Adjustment on zero "001j0k
C
R
"
"001j100016c
C
R
"
"001j0k
C
R
"
"001j100016c
C
R
"
Please find further information about the Thyracont communication protocol in
chapter 4.2.
4.9 Protective Sensor Screen
To protect the sensor against contamination, radiation and fast moving particles
it is recommended in such cases to mount the protective screen which is
delivered together with the transducer. For this put the protective screen in the
flange and carefully push it into the flange by means of the enclosed mounting
accessory as shown below until it snaps in.
Caution: the sensor is susceptible against contamination!
Contamination inside the sensor or flange will lead to increased
degassing under high vacuum and extend pumping times.
Wear clean, non-fuzzing gloves and use clean tools only!