I believe there could be a minor conflict. In terms of “calibrated correctly”, those are all those tests. If you had a 33.9 instead of 34 for internal temperature, unless the certificate said it was done correctly, except for this little detail....
And I'm not absolutely certain about the last part of your amendment: “maintained according to the manufacturer's guidelines”. I believe we follow the recommendations of the alcohol test committee as to what should be done for our machines and their maintenance and so on, not the manufacturer's guidelines.