Instruction manual
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2
Selecting unit of measurement for temperature: The upper 
display shows ‘Unit’ and the lower display shows the last configured 
unit of measurement for temperature. 
Press ▲ or ▼ key to select the desired units for temperature (ºC 
or ºF). Press ENT key to confirm your selection. 
3
Enable/disable ATC: The lower display shows ‘AtC’ and the upper 
display shows the last configured ATC selection (‘On’ or ‘OFF’). 
Press ▲ or ▼ key to enable (ATC On) or disable (ATC OFF) 
automatic temperature compensation. Press ENT key to confirm 
your selection. 
If ATC enabled (ATC On): 
4
Setting temperature offset: The upper display shows the 
last configured temperature offset value (if any), otherwise the 
default is zero. The lower display shows currently measured 
temperature reading (including last configured offset value). 
LCD shows ‘ATC’ annunciator in lower-right corner. 
Place a thermometer, which is known to be accurate, in your 
sample or process liquid. Make sure your temperature probe 
is placed in the same liquid. Compare the stabilized 
temperature reading displayed on the monitor with the 
thermometer. If there is a difference between the two readings 
(offset), you can adjust the reading of the monitor. Press ▲ or 
▼ key to adjust the lower display to the correct temperature 
value. 
55
As the lower display value changes, the pH Monitor adjust the 
upper display reading automatically to suit the new offset 
value. Up to ± 10 ºC/ ± 18 ºF offset is allowed. 
Press ENT key to confirm the value. The pH Monitor reverts 
to SET ºCF screen. 
If ATC disabled (ATC OFF): 
6
Setting process temperature: The lower display shows 
‘P.ºC’ and the upper display shows the last configured 
process temperature. Press ▲ or ▼ key to adjust the upper 
display to desired process temperature. Allowable range: –
10.0 to 125.0°C / 14.0 to 257°F. 
Press ENT key to confirm the process temperature. 
7
Setting calibration temperature: The lower display shows 
‘C.ºC’ and the upper display shows the last configured 
calibration temperature. Press ▲ or ▼ key to adjust the 
upper display to desired calibration temperature. Allowable 
range: –10.0 to 125.0°C / 14.0 to 257°F. 
Press ENT key to confirm the calibration temperature. The 
pH Monitor reverts to SET ºCF screen. 










