Lab 3 Cryogenic System 4 Cassette VLPC Test Cryostat I/O & Controls
Dzero is using LAB3 as a test facility for the VCLPC (Visible Light Photon Counter) Cassettes and Cryostats. This installation will use liquid Helium from a vendor provided Dewar trailer for the cryostat refrigeration. The gas Helium will then be recovered and pumped into high pressure trailers and be sent back to the vender. Most of this system was installed at LAB6 and was operated in 1995 and 1996. The previous control system was a hardwired type system with 2 MOORE 352 controllers performing loop controls with some limited logic control. The installation at LAB3 will replace this control system with a commercial Programmable Logic Controller, a TI545. The TI545 will allow centralized loop and logic control. The VLPC cassette temperature monitoring and control will also be performed by this PLC. The entire LAB3 system will be on the sitewide FIX32 operator interface. This note describes the specifications and configuration of the physical Input/Output devices and instrumentation of the LAB3 Control System. Lab3 also has an oven used to bake Carbon fiber cylinders. The TI545 will monitor these temperatures using 'T' Thermocouples installed in a remote base.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1032119
- Report Number(s):
- FERMILAB-D0-EN-481; TRN: US1200484
- Country of Publication:
- United States
- Language:
- English
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