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B180 STATUS Zhijun Liang News • Got some help from Steve in connecting thermal stavelet to CO2 cooling system. • Use water to do Pressure test for the whole system in B180 • Todd pointed out a few issue in thermal stavelet. • Some connector does not support large current. • PT1000 does not touch the thermal stavelet • Fixed Temperature Monitoring • Suggested by Todd, we are going to put more sensors on CO2 system and thermal stavelet. • Two proposals for reading out the temperature sensors: • Use NTC readout • Use ELMB NTC readout • A small box to read out NTC sensors • Easy to use • But only can do monitoring, not possible to do some control. • Got NTC readout for free from Steve. ELMB • ELMB is widely used in ATLAS DCS . • Not only Monitoring, can also send control signal • A bit more expensive (about 400 CHF) • Need to buy a CAN computer interface • Need a voltage source . • Need a new computer with PVSS
