Grunbeck softliQ:SC, Руководство по эксплуатации

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Operation
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Item Designation Item Designation
1 Test tube 2 Titration solution
7.4.1 Taking a water sample
Note: If the flow rate is too low during the sampling, the result will be falsified.
● The system will be programmed with incorrect values for the raw water hardness.
● The required soft water value will not be attained.
► Fully open the water withdrawal point for cold water or the sampling valve. A flow
rate between 0.4 m³/h and 0.6 m³/h must be attained.
► When taking a soft water sample, the flow rate can be read in information level 2.
1. Open a water withdrawal point for cold water.
a In order to take a raw water sample, use a water withdrawal point for cold water
upstream of the system.
b In order to take a soft water sample, use a water withdrawal point for cold water
downstream of the system.
2. Let the water run for at least 30 seconds.
3. Take a water sample with the test tube:
a Fill the test tube up to the °dH mark to determine the water hardness in °dH.
b Fill the test tube up to the marking °f (x 0.1 = mol/m³) in order to determine the
water hardness in °f, mol/m³ or mmol/l.
7.4.2 Determining the water hardness in °dH/°f
1. Add one drop of titration solution (1 drop = 1 °dH or 1 °f).
2. Shake the test tube until the titration solution is mixed with the water.
3. In case of red colouring, repeat steps 1 and 2 and count the drops until the colour
changes to green.
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1