Start Preparation - Pahlen MiniMaster User Manual

MiniMaster
8. Start
Preparation
1. Check that the pool's water readings are within recommended limits, use photometric measurement equipment.
2. Just before start, the electrodes are installed in the respective module. Then connect the electrode's BNC contact to the
respective control unit, see picture 5. NOTE: The electrodes shall always be stored in liquid.
Picture 6
E
Start-up
First read through the paragraph on "LEDs" in section 10 Operation, which describes
MiniMaster's LED signals and what they mean.
The pool circulation pump must be running in order for the unit to function.
1. Switch on MiniMaster.
2. Open all taps.
3. Press the Flow button (F).
(Only required on the left-hand unit when there are two).
4. Adjust the flow with the flow screw (H) until LEDs no. 1 to 4 are on.
Check that the unit has a flow, can be seen in the window (J), and that there is a free flow
through the hoses. If the outlet hose is installed on the pump's suction side (alt. B pic-
ture 3), ball valve L2 (picture 2) shall be open 25-50% to avoid a vacuum in the flow cell.
5. Let the flow cell flow for at least 30 minutes for stabilization of electrodes and elimination
of air in the flow cell.
6. Check the pool's pH reading.
7. Balance the pH, see below.
Balance pH
Take measurement water from the drain tap (N, picture 2) and check the pool's pH by using photometric measurement
equipment.
Balance the pH to 7.2-7.4 by manually dosing with acid (upon high pH) or alkali (upon low pH) directly in the pool or with
dosing equipment (accessory) for MiniMaster;
- press button (E) to activate the dosing function (LED is lit with a steady glow).
- press button (G) for 3 seconds for forced dosing for 30 seconds.
- then press button (E) to stop the dosing function (LED blinks).
Concentrated dosing can initially cause major fluctuations depending on pool size and turnover rate. Let the fluctuations
level off and carefully check that the pH has stabilised after around 5 hours.
8. The water's pH must be balanced before going on to adjust the free chlorine reading, see below. Incorrect pH causes
in-correct free chlorine readings.
Adjust free chlorine
Take measurement water from the drain tap on the prefilter (N, picture 2) and check the pool's free chlorine by using photo-
metric measurement equipment.
Adjust the chlorine reading to 0.5-1.5mg/l by either dosing chlorine directly in the pool or with dosing equipment for Mini-
Master;
- press button (E) to activate the dosing function (LED is lit with a steady glow).
- press button (G) for 3 seconds for forced dosing for 2 minutes
- then press (E) to stop the dosing function (LED blinks).
Concentrated dosing can initially cause major fluctuations depending on pool size and turnover rate. Let the fluctuations
level off and carefully check that the chlorine content has stabilised after around 5 hours.
NOTE: If organic chlorine (weekly chlorine in puck form) is used or has been used in the pool, this causes cyanuric acid in
the pool water.
Cyanuric acid in the water causes misleading free chlorine readings and calibration errors in MiniMaster. If so, dilute the pool
water with so much new water that the cyanuric acid reaches the recommended value (see "Recommended values.." in
section 3 General info).
9. When the values for both pH and free chlorine are in balance at the same time, one can continue and calibrate MiniMaster.
Each unit is calibrated separately. They are independent of each other.
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Picture 7
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F
H
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ENGLISH
310
E
Sid 2. Till MA60-16
Box 728
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