How do I zero the CO2 sensors for a cell culture incubator?

[amperro]

Our lab purchased a (secondhand) Forma Scientific water-jacketed cell culture incubator (model 3326). We do not have documentation (manual). We are trying to zero the CO2 sensor so we can calibrate the incubator for future cell culture work. Does anybody know how to do this?

[JackBean]

do you really think that there will be anyone who has exactly the same chamber? You should rather contact the company.

[canalon]

Have you tried to email thermo/forma?
Our lab rescued an old piece of equipment made by them, and we needed info, they answered within 24h with everything I needed.