Thermo Fisher Scientific EcoScan CON 6 & TDS 6 - Manual (Page 17)

Instruction Manual CON 6/TDS 6
13
4 CALIBRATION
4.1 Important Information on Meter Calibration
Your meter has five measuring ranges. You can calibrate one point in each of
the measuring ranges (up to five points). If you are measuring values in more
than one range, make sure to calibrate each of the ranges you are measuring.
The following table lists the corresponding conductivity and TDS ranges. You
should calibrate each range using a solution that falls between the values in the
“recommended calibration solution range” column
Conductivity Range Recommended
Calibration
Solution Range
TDS Range Recommended
Calibration
Solution Range
0.00  20.00 µS 6.00 to 17.00 µS 0.00  10.00 ppm 3.00 to 8.50 ppm
0.0  200.0 µS 60.0 to 170.0 µS 10.0  100.0 ppm 30.0 to 85.0 ppm
0  2000 µS 600 to 1700 µS 100  1000 ppm 300 to 850 ppn
0.00  20.00 mS 6.00 to 17.00
mS
1.00  10.00 ppt 3.00 to 8.50 ppt
0.0  200.0 mS 60.0 to 170.0
mS
10.0  200 ppt 30.0 to 170 ppt
When you recalibrate your meter, old calibrations are replaced on a range
basis. For example, if you previously calibrated your conductivity meter at 1413
µS in the 0 to 2000 µS range and you recalibrate at 1500 µS (also in the 0 to
2000 µS range), the meter will replace the old calibration data (1413 µS) in that
range. The meter will retain all calibration data in other ranges.
To completely recalibrate your meter, or when you use a replacement probe, it
is best to clear all calibration data. To erase all the old conductivity or TDS
calibration data completely, see Section 6.8 – Restore Factory Default Values.