Thermo Fisher Scientific CyberScan CON 400 (For units manufactured from March 2010 onwards) - Manual (Page 14)

Instruction Manual CON 400
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4.2 Preparing the Meter for Calibration
Before starting calibration, make sure you are in the correct measurement mode. When you
switch on the meter, the meter begins with the units you shut it off in.
For best results, select a standard value close to the sample value you are measuring.
Alternatively use a calibration solution value that is approximately 2/3 the full-scale value of
the measurement range you plan to use. For example, in the 0 to 1999
μS conductivity range,
use a 1413 μS solution for calibration.
Do not reuse calibration solutions after calibration. Contaminants in the solution can affect the
calibration, and eventually the accuracy of the measurements. Use fresh calibration solution
each time you calibrate your meter.
NOTE: Your meter is factory set to a temperature coefficient of 2.1% per
°C. For most
applications this will provide good results. See Program P5.1 on page 34 to set the
temperature coefficient to different value. See Addendum 3, “Calculating Temperature
Coefficients” to determine the appropriate temperature coefficient for your solution.
NOTE: The factory default value for normalization temperature is 25 °C. If you need to
normalize to a value other than 25 °C, see Program P5.2 on page 35.