SPB
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14.5.7 Auxiliary Bus Connector (VT Accessory, SPB-E)
With introduction of the Bruker Sample & Variable Temperature System (BSVT) a new
generation of sensor interface adaptors are available. These adapters convert sensor signals
into a digital data-stream. These sensors are typically connected to the AV4 VARIABLE
POWER SUPPLY BOARD DC (VPSB-DC).
The SPB-E variant is equipped with one supplementary auxiliary bus interface connector.
The interface is hot-plug capable, has automatic connect/disconnect detection and power
supply signals are short-circuit proof.
14.5.8 Pneumatics
For detailed technical specifications please see Technical Data [}219].
NOTICE
Never supply the console with non-filtered gas.
Gas supply filter 88437 must be installed!
The SPB contains all valves, valve drivers, and pneumatic connectors necessary to control:
• Sample lift
• Sample spinner (sample rotation)
• VT gas
• Probe flush gas
• Shim system cooling gas
• Emergency lift detection
The SPB replaces the former BSMS/2 PNK3, PNK3S and PNK5 boards.
The valve drivers are galvanically isolated and the module is controlled by the ELCB which
also saves the calibration values.
To provide usage of different gases for sample transport/shim cooling and delicate probe
head gases (VT, spin, flush gas), these two functional groups have separate gas inputs.
For reasons of sample safety it is necessary to connect a buffer to the lift system.
With the exception of the lift system and emergency lift gas for the CryoProbe sample safety
option, there are no further calibration procedures necessary. In particular spin calibration is
not necessary.
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