Communication; The Serial Interface Of The Vsr - thyracont VSR53D Betriebsanleitung

Dependence On Gas Type
Below 15 mbar the output signal depends on composition and type of the gas
being measured. The unit is adjusted for N
correction factors for the Pirani sensor can be set via RS485 (see chapter 4.2
and 4.5. This results in a correct pressure display below 0.1 mbar.
4.2

Communication

4.2.1

The Serial Interface Of The VSR

The VSR transducer is equipped with a serial RS485 interface. To enable
communication via RS485 please remove the rubber cap over the address
switch (1) and then set the address switch to a value between 1 and 15 using a
small screw driver or a similar tool (2). Afterwards insert the rubber cap again.
Communication is carried out according to the Thyracont protocol, detailed
information hereto is provided in a separate description.
The analog output signal 0-10V is simultaneously available
when RS485 !
and dry air. For other gases
2
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