26
Thermo Scientific Alpha pH 560
Controller adjust the lower reading automatically to suit the
new offset value. Up to ± 2.00 pH offset is allowed.
Press ENT key to confirm the value. The pH Controller
reverts to O
OFS screen.
Press
Ÿ
or
ź
key to access other setup screens or press
Ÿ
or
ź
key
simultaneously (escape) to return to measurement mode.
Automatic Temperature Compensation (ATC):
The pH values other than pH 7.00 are affected by temperature. Use
ATC feature of the pH Controller to compensate for pH changes when
the temperature of the sample or process liquid fluctuates. Connect a
separate temperature probe (Pt100/pt1000) to the pH Controller if an
integrated pH/Temperature probe is not available.
Manual Temperature Compensation (MTC):
Set the pH Controller to MTC (disable ATC) when the temperature of
sample or process liquid is constant and a temperature probe is not
available. If you disable ATC, the pH Controller allows you to set your
process temperature (P
P.ºC) and ccalibration temperature (C
C.ºC).
This allows calibration at a different temperature other than the process
temperature. Example: Setting calibration temperature of 25°C lets you
calibrate using standard solutions at 25°C, even if your process
temperature is different from 25°C.
Figure 5–22.
Customising Temperature Settings
1
1
From pH or ORP measurement mode p
press ENT key to enter
setup mode as described in page 24. The LCD shows the first
screen of setup mode (O
OFS). P
Press
Ÿ
or
ź
key to select
Temperature settings screen ((SET ºCF).
Press ENT key to access temperature settings (S
SET ºCF).
2
Selecting unit of measurement for temperature: The upper
display shows ‘U
Unit’ and the lower display shows the last
configured unit of measurement for temperature.
Temperature
Settings
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