Bruker BioSpin NMR BVT3200, Техническое руководство

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Technical Manual Version 002 BRUKER BIOSPIN 41 (55)
Authorised functions
P4 - Port 4 (for test only) 4.8.14
Port 4 allows to read the internal status of the BVT3200 and sets the gas flow rate
at power on.
It is composed as follows:
Table 4.9. Port 4 definition
When a jumper is placed, it means that the valve is closed at power on.
Figure 4.2. Valve jumpers settings
Read
BIT NAME FUNCTION
0 unused
1 unused
2 unused
3 evap_on 1 = evaporator heater on
4 V1 jumper JP13
5 V2 jumper JP13
6 V3 jumper JP12
7 V4 jumper JP12
Syntax : EOT 0 0 0 0 P4 ENQ
Response : STX P4 > ABCD ETX BCC
Description : Allows direct read access to port 4.
Rules : A and B are always «0». The third character represents the
state of port 3 bits 4 to 7. The fourth character represents the
state of the bits 0 to 3. All the characters are hexadecimal.
closed
open