Bruker RS - Mounting the Temperature Control

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ZTKS0156 / Z31820 / Rev.: 03
Assembling
4.3.3.7 Mounting the Temperature Control
The temperature of the refrigerated radiation shield inside the cryostat during usual ope-
ration must be controlled and in case of failure the operator will receive an alarm.
Set the alarm temperature level to 90 K at MICS and at the External Temperature
Control Unit.
The alarm will be given in four different ways:
• Alarm message at the computer of the magnet system via MICS.
• Alarm message by email generated via MICS.
• Alarm message at the display of the External Temperature Control Unit.
• Audible alarm from the External Temperature Control Unit.
The cryostat has two PT 100 temperature sensors for monitoring. One sensor is con-
nected to the BSMS board of the console with supplied VTA MAG-RS unit and Cable Set
BSVT, controlled with MICS. The other sensor is connected to the External Temperature
Control Unit with the supplied cable.
i
The two PT 100 sensors should be used in a parallel manner to prevent any lack of
monitoring due to failure of the sensors or the power supply.
Thus: connect the console to another electrical circuit than the External Temperature
Control Unit.