Aquasafe WSL50 Pro, Instruction Manual

Page: 87 / 193

User Calibration
If a test method is user calibrated, the method name is displayed inverse.
Procedure:
- Prepare a standard of known concentration and use this standard instead
of the sample according to the test procedure.
- It is recommended to use well known standard which hare formulated
according to DIN EN, ASTM or other international norms or to use the
certified standards which are commercially available.
- After measuring this standard solution it is possible to change the
displayed results to the required value.
- If a method uses a mathematic equation for the calculation of the results,
it is only possible to calibrate the basic tests since all the other tests use
the same polynomial.
- The same applies for some test procedures which use a polynomial from
another test procedure.
Return to factory calibration:
If the user calibration has deleted the factory calibration is automatically activated.
Remarks:
The ‘fluoride’ method cannot be calibrated with mode 45 since the test requires a
calibration related to the batch of liquid reagent (SPADNS) (mode 40, chapter
‘Fluoride Method 170’, see above).
No. Method Recommended range for user calibration
35 Alkalinity- p 100-300 ml/l CaCO
3
30 Alkalinity-total 50-150 mg/l CaCO
3
31 Alkalinity-total HR 50-300 mg/l CaCO
3
40 Aluminium 0.1-0.2 mg/l Al
60 Ammonium 0.3-0.5 mg/l N
85 Boron 1 mg/l B
80 Bromine Calibration with basic test 100 chlorine free
90 Chloride 10-20 mg/l Cl-
100 Chlorine 0.5-1.5 mg/l Cl
103 Chlorine HR 0.5-6 mg/l Cl
120 Chlorine dioxide Calibration with basic test 100 chlorine free
125 Chromium 1 mg/l Cr
130 COD LR 100 mg/l O
2
131 COD MR 500 mg/l O
2
132 COD HR 5 g/l O
2
= 5000 mg/l O
2
204 Colour Pt-Co Operating range
150 Copper 0.5-1.5 mg/l Cu
160 CyA-TEST 30-60 mg/l CyA