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Instruction Manual   
 
CyberScan pH 11 / 110  
 
16
4.5 Temperature 
Calibration 
The temperature sensor is factory calibrated. Calibrate 
the temperature probe only if you suspect temperature 
errors may have occurred over a long period of time or if 
you have a replacement temperature probe. This 
procedure offers offset adjustment of probe to ensure 
more accurate temperature measurement.  
1.  Make sure the ATC probe (or temperature 
connector of the electrode) is connected to the 
phono-socket (see Figure 6).  
2.  Switch the meter on. The ATC annunciator will 
appear at the right-hand side of the LCD. Press 
the MODE key to select pH mode.  
3.  Press the CAL/MEAS key to enter pH 
calibration mode. The CAL indicator will appear 
above the primary display.  
4.  While in pH calibration mode, press the MODE 
key to enter temperature calibration mode. The 
primary display shows the measured 
temperature reading according to the last set 
offset
1
 and the secondary display shows the 
factory calibrated temperature measurement. 
5.  Dip the ATC probe (or electrode) into a solution 
of known temperature (i.e. a temperature bath). 
Allow time for the temperature probe to 
stabilise.  
6.  Scroll with the MI/▲ or MR/▼ keys to set the 
correct temperature value (i.e. the temperature 
of the temperature bath).  You can adjust the 
reading in increments of 0.1°C. 
7. Once you have selected the correct 
temperature, press the HOLD/ENTER key. The 
meter automatically returns to pH measurement 
mode. See Figure 14.  
NOTES: 
You can offset the temperature reading up to ±5°C from 
original reading.  
To exit this program without confirming the temperature 
calibration value, DO NOT press ENTER.  Press CAL/MEAS instead
                                                           
1
 It displays the value being measured currently, offset by the last calibration.  
MEAS
pH
ATC
°C
7.16
22.3
MEAS
pH
ATC
°C
7.16
22.0
CAL
pH
pH
7.16
7.00
CAL
ATC
°C
22.3
22.3
ATC
°C
22.0
22.3
CAL
READY
MEAS
CAL
MODE
MI
MR
ENTER
HOLD
Figure 14: Temperature 
calibration