Thermo Fisher Scientific Alpha DO 2000 - Manual (Page 29)

Instruction manual
Alpha DO 2000
Î NOTE: The offset value is reset during 2-point calibration. See section 5 for full
calibration instructions.
6.3 Temperature Setting (SET °C°F)
SETUP SETUP
SETUP
HOLD HOLD
HOLD
ENT
SETUP
SETUP
HOLD
HOLD
°C
SETUP
SETUP
SETUP
HOLD
HOLD
HOLD
ATC
°C
°F
ENT ENT
ENT
ENT
ENT
ENT
1 2
2
3
3
4 5
6
ENT
1. From the setup mode, select the “SET °C°F” screen and then press ENT key.
2. Selecting temperature unit: Press
▲ or ▼ key to select the desired
temperature unit “°C” or “°F”. Press ENT key to confirm your selection.
3. Enable/disable ATC mode: Press
▲ or ▼ key to enable (ATC ON) or
disable (ATC OFF) automatic temperature compensation. Press ENT key to
confirm your selection.
− ATC disabled (ATC OFF):
For manual temperature compensation you can set the process and
calibration temperatures. This allows calibration at a temperature other
than the process temperature.
4. Setting the process temperature: Press
▲ or ▼ key to adjust the
process temperature in the upper display value (setting range: –9.9 to
125°C / 15 to 257 °F). Press ENT key to confirm process temperature.
5. Setting the calibration temperature: press
▲ or ▼ key to adjust the
calibration temperature in the upper display value (setting range: –9.9
to 125°C / 15 to 257 °F). Press ENT key to confirm the calibration
temperature.
− ATC enabled (ATC ON):
6. Setting the temperature offset: The display shows the current
temperature offset (upper display value) and the temperature currently
measured (lower display value). Compare the current temperature
displayed on the transmitter to a thermometer known to be accurate.
Note the correct temperature value. Press the
▲ or ▼ key to adjust the
lower display value. The upper number is automatically adjusted to the
offset value. You can offset the temperature by up to ±10°C/±18°F.
Press ENT key to confirm your setting.
The controller goes back to “SET °C°F” screen.
Continue with rest of the Setup procedures by pressing ▲ or ▼ key or return to
the Measurement mode by pressing ▲ and ▼ keys (escape) simultaneously.
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