Lovibond PoolDirect, Instruction And Operation Manual, Page: 59 / 78

59
PoolDirect 9in1_4i 11/2015
9. Rinse the vial (24 mm Ø) with the coloured sample from
the beaker and fill with 10 ml of the sample.
10. Press TEST key.
The batch related method blank is saved.
Press [ ] key,
to go back to mode menu.
Notes:
1. If a new batch of CALCIO tablets is used a calibration of the method blank has to be
performed to optimise the results.
2. Deionised or tap water
3. If no water free of Calcium is available these ions can be masked by using EDTA.
Preparation: Add 50 mg (a spatula-tipful) EDTA to 100 ml water and dissolve.
4. To achieve the most accurate method blank it is important to adhere exactly to the
sample volume of 100 ml.
Calcium Hardness Method –
Reset method blank to factory calibration
Press [MODE] [4] [0] keys in sequence.
Confirm with [ ] key.
The display shows:
Press [2] key.
The display shows:
Press [0] key to keep the method blank.
Press [1] key to erase the method blank and set the value
back to factory calibration.
The instrument goes back to mode menu automatically.
<Calibration>
M191 Calcium Hardness 2T
Reset?
YES: 1, NO: 0
<Calibration>
1: M191 Ca-Hardness 2
2: M191 0 Jus. Reset
Mode
4
0
2
0
1
prepare TEST
press TEST
stored