Hi Tim, Not sure if this would work, but can you get a voltage supply and connect it instead of the thermocouple? You would need something to provide a few mV: https://www.thermocoupleinfo.com/type-k-thermocouple.htm
Ivan > -----Original Message----- > From: CCP4 bulletin board <[email protected]> On Behalf Of Tim > Gruene > Sent: Thursday, February 02, 2023 11:57 AM > To: [email protected] > Subject: [ccp4bb] small scale -15C chiller > > Good day, > > I would like to cool a K-type thermocouple down to -15C. The temperature does > not need to be very accurate, nor exactly -15C, just below that level. > > I was thinking of using a piezo-chiller, but they don't seem to be very energy > efficient. > > Could anyone make a recommendation for a simple device to cool the tiny > thermocouple to -15C to -20C? > > For the details: we have an inhouse diffractometer with a dead detector. The > system is blocked, because the temperature of the detector needs to be below - > 15C. It is measured with a K-type thermocouple. I tested with liquid nitrogen. > The system show -64C (probably the limit of the thermocoupe) and I can operate > the system (and mount our new (brand-alien) detector). > > Thanks a lot! > > Best, > Tim > > -- > -- > Tim Gruene > Head of the Centre for X-ray Structure Analysis Faculty of Chemistry > University > of Vienna > > Phone: +43-1-4277-70202 > > GPG Key ID = A46BEE1A > > ################################################################# > ####### > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 > > This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing > list hosted by www.jiscmail.ac.uk, terms & conditions are available at > https://www.jiscmail.ac.uk/policyandsecurity/ ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
