ITC503 Heliox

Original implementation for use on MuSR 3He refrigerator. The device is a Heliox/ITC503 based refrigerator.

Physical process overview

Control Logic

Comms

ITC503s are on an RS232 connection direct into the MOXA.

Set communication details using macros for each of the 4 ITC503s (1KPOT, SORB, HE3POT_HIGHT, HE3POT_LOWT). The required settings are the port for each ITC503 e.g. setting SORB_PORT to COM1. You can also set the baud rate, bits, parity and stop bit e.g. for the SORB: SORB_BAUD, SORB_BITS, SORB_PARITY and SORB_STOP, all of which have default values. For testing, you can set the emulator port with e.g. SORB_EMULATOR_PORT.