Richard, Gerardo, Jordan, Fil, Patrick, Jonathan, Dave

Fil, Gerardo, Richard, Jordan ran a line from the Kobelco compressor over to the vacmr rack and connected it to a spare Beckhoff ADC channel.

I wrote an EPICS IOC which reads the raw voltage from the Beckhoff terminal and converts it to DegC and DegF oil temperature.

The ioc is kobe_oiltp_ioc.py. It reads the raw voltage from H0:VAC-MR_TERM_M28_CHAN3_IN_VOLTS and converts this to temperature DegC using the simple formula

DegC = 30 * V

It also converts the temperature to DegF and, along with the raw voltage read via ezca, exports these in EPICS channels. The chan names are:

[H1:VAC-MR_KOBE_OILTP_VOLTS]
[H1:VAC-MR_KOBE_OILTP_DEGC]
[H1:VAC-MR_KOBE_OILTP_DEGF]
 

H1:VAC-MR_KOBE_OILTP_DEGF was added to the alarms system. Cell phone alarms will be sent to the vacuum group if the temperature exceeds 150F or falls below 100F.

These channels have been added to the Vacuum Overview MEDM (attached).