Thermo Fisher Scientific EcoScan CON 6 & TDS 6 - Manual (Page 21)

Instruction Manual CON 6/TDS 6
17
IMPORTANT NOTES:
1. Meter allows a tolerance range of ±40% of its
calibration standard. An error message “Err 1” will be
displayed for 3 seconds if you attempt to calibrate
with a solution whose value is outside the tolerance
range.
For instance: For 1413 µS conductivity calibration
standard, 40% tolerance is from 848 µS to 1978 µS.
2. If the temperature (t °C) of the conductivity calibration
solution is below 0 °C or above 50 °C (0°C < t °C >
50 °C), an error message “Err 2” will be displayed
when performing the auto calibration, and meter will
return to measurement mode.
3. All new calibration data will over-ride existing stored
calibration data for each measuring range calibrated.
4. It is important to use new conductivity calibration
standards.
5. Low conductivity standard solution (less than 20 µS
/cm) cannot be available easily. Such low conductivity
standard will be contaminated as soon as it is
exposed to the air therefore exercise caution during
calibration in the first measurement range (0.00 to
20.0 µS /cm).