Endress+Hauser Stamolys CA71CL, Operating Instructions Manual

Page: 28 / 56

Operation StamoLys CA 71 SI
28 Hauser
5.4 Calibration
5.4.1 Standard calibration data
The signal strength is processed device-internally as a frequency.
The following table provides an overview of the standard calibration data
(frequency-offset = 0).
!
Note!
Compare these values to your own data.
After changes in the CONFIGURATION menu and in case of software updates, you can
check and, if necessary, change the calibration data in the sub-menu.
5.4.2 Interferences
Measuring range Concentration [mg/l] Frequency [Hz]
Silicate, lower measuring range
SI-A 1 ... 200 µg/l 0.000
0.020
0.040
0.060
0.080
0.100
0.120
0.140
0.160
0.200 0
251
515
831
1059
1319
1525
1741
1902
2308
Silicate, upper measuring range
SI-B 0.00 ... 5.00 mg/l 0.00
0.10
0.50
1.00
1.50
2.00
2.50
3.00
4.00
5.00 0
325
679
972
1320
1603
1840
2054
2342
2746
Interferring substance Interference
Colour eliminated by calibration
Iron interferences from 1 mg/l
Phosphate interferences from 50 mg/l
Sulfide interferences at high concentrations
Turbidity eliminated by calibration
Extreme pH values pH must be lower than 7