13
3. CALIBRATION
3.1 Important Information on Meter Calibration
The CON 6 PLUS and TDS 6 PLUS have
fi
ve measuring ranges listed
below. Each range can be calibrated to one point per range (
fi
ve total
points if each range is calibrated). Calibration is recommended for each
range that will be utilized.
CON 6
PLUS
Conductivity Range
Recommended Calibration
Solution Range
0.00
20.00
μ
S/cm
6.00 to 17.00
μ
S/cm
0.0
200.0
μ
S/cm
60.0 to 170.0
μ
S/cm
0
2000
μ
S/cm
600 to 1700
μ
S/cm
0.00
20.00 mS/cm
6.00 to 17.00 mS/cm
0.0
200.0 mS/cm
60.0 to 170.0 mS/cm
TDS 6
PLUS
TDS Range
Recommended Calibration
Solution Range
0.00
10.00 ppm
3.00 to 8.50 ppm
10.0
100.0 ppm
30.0 to 85.0 ppm
100
1000 ppm
300 to 850 ppm
1.00
10.00 ppt
3.00 to 8.50 ppt
10.0
200 ppt
30.0 to 170 ppt
New calibrations will replace old calibrations on a per range basis. For
example, if the meter has been calibrated with 1413
μ
S/cm (0 to 2000
μ
S/cm range) and a calibration is performed with 1500
μ
S/cm (also 0 to
2000
μ
S/cm range), the meter will replace the 1413
μ
S/cm calibration in
that range. The meter will retain all calibration data in other ranges.
When the probe is replaced, it is best to clear all calibration data. To
erase all calibration data completely, see
Section 5.8 Restore Factory
Default Values
.