Thermo Fisher Scientific Alpha pH 190 (In the process of updating the brand guideline & product image) - Manual (Page 30)

- 24 -
P3.3: Select temperature compensation
This controller features selectable automatic temperature
compensation (ATC) or manual temperature compensation (MTC).
ATC automatically compensates for temperature fluctuations; MTC
let you select a specific value at which temperature will be
compensated. ATC readings require a temperature sensor.
1.
Key in the password “022” as per procedure in Section 5.
2. Press ▲ key twice. The screen will scroll P3.0 and CONF.
Press ENTER three times.
3. The screen will scroll P3.3 and MTC (or ATC).
4. Press ▲ or ▼ keys to toggle between MTC and ATC.
5. Press ENTER to confirm and return to general Setup mode.
Press ▲ and ▼ keys together (ESCAPE) to return to
measurement mode.
NOTE: ORP is not affected by temperature and so ATC does not
operate in ORP mode. When set for ATC, the pH 190 will display
temperature if a 100 Ω Pt 100 sensor is connected.