Manual MiniMaster
Contents
1. MiniMaster Manual SSC 5 User manual NHCTpY KUMA 410620 ppm ire Z i Copyright 2011 Pahl n AB Box 728 SE 194 27 Upplands Vasby Sweden Tel 46 8 594 110 50 Fax 46 8 590 868 80 e mail info pahlen se www pahlen com MA60 16 rev 5 MA60 16E MiniMaster EH 1 Product description MiniMaster is an electronic unit for checking and controlling the pH and or chlorine level in a pool The pH value is measured with a pH electrode and the chlorine level is measured with a free chlorine electrode MiniMaster can be linked with dosing equipment for acid alkali OH and chlorine The package contains 1 control unit 2 4m PE hoses prefilter and hose connections Electrode kit supplied separately contains electrode s cleanser and for the pH model also buffer solution pH 7 3 2 Technical data MiniMaster pH chlorine MiniMaster chlorine MiniMaster pH Power consumption excl dosing equipment AW 2W 2W Power consumption dosing equipment max 2x100W 100W 100W Rated current 1A Voltage 220 240V 1 N 50 60Hz Temperature range 0 to 45 C Enclosure rating IP44 Measurements L x W x H 310 x 85 x 500 mm Weight 2 kg 3 General info MiniMaster measures and continuously indicates the pool water s pH reading and chlorine content Upon deviant readings the control unit gives signals to external dosage equipment that applies doses To maintain balanced water quality2. Unscrew the electrode and lift it upwards Clean and rinse off the electrode Reinstall the electrode and BNC connector Open the ball valves L1 and L2 Activate dosing on off button E LED is lit with a steady glow OS oN Filter Check the filter regularly and clean as necessary Replace the cartridge when necessary Switch off dosing on off button E LED blinks Cut off the flow of water by closing the ball valves L1 and L2 Unscrew the filter can where the cartridge sits Replace the filter or rinse it clean with regular water A soft brush can be used if necessary Reinstall filter Open the ball valves L1 and L2 Activate dosing on off button E LED is lit with a steady glow oS ot Adjustment screws Adjustment screws H and Measurement water tap N are cleaned as necessary so they do not seize due to being coated Switch off dosing on off button E LED blinks Cut off the flow with the ball valves L1 and L2 Screw out the adjustment screw rinse it and wipe it off Lubricate the O ring and plug thread with a little silicone grease Reinstall them Open the ball valves L1 and L2 Activate dosing on off button E LED is lit with a steady glow e Winter storage Upon the risk of freezing the modules and prefilter should be emptied from water bottom plugs removed electrodes uninstalled and stored frost free in their delivery container filled with tap water ee ee ee eS ee Ce Handling of
3. it is important to follow our recommended readings as per below pH readings outside the recommended readings will provide misleading chlorine readings at MiniMaster If the pool water was previously dosed with organic chlorine containing cyanuric acid such as in tablet puck form this may cause an incorrect chlorine measurement for action see section 8 point 8 We recommend use of a photometric test instrument for reference measurement and calibration MiniMaster must be mounted on a wall or similar and must sit straight The installation space for MiniMaster is recommended to be indoor or under a roof and to be easily accessible to be able to easily take readings perform service take water samples and clean the prefilter Recommended readings regarding water quality Chlorine content 0 5 1 5 mg l ppm pH reading 1 2 1 6 Alkalinity 60 120 mg l ppm Chloride salt content max 5000 mg l ppm 0 5 Calcium hardness 100 300 mg l ppm Cyanuric acid max 5 mg l ppm For more details on pool chemistry and care refer to the pool user s guide on our website http www pahlen com users quide 4 Safety Dosage of chlorine acid or the like shall be done AFTER all other equipment to minimise the corrosion risk Dose points in the circulation system for liquid acid and chlorine shall be as far apart as possible although a minimum of 500 mm and chlorine dosing shall always be placed last see picture 3 5 Dimensions MiniMas
4. unscrew the pH electrode from the module put back the BNC contact Pour reference liquid pH 7 3 in a measurement glass so much so it covers at least 2cm of the pH electrode tapped reference liquid may not be reused and let the electrode stand in the liquid for at least 30 seconds Calibrate the unit by pressing the two calibration buttons F G at the same time and keep them pressed The LED flashes quickly approx 5 times per second to confirm that calibration is in progress The flashing slows down once calibration is complete You can then release the buttons 4 The calibrated value is saved in the unit memory The green LED in the middle turns on and now represents this value Once the unit is calibrated dosing is activated by pressing the On Off button E on the control unit The LED for the current value is now lit with a steady glow oN Calibrate free chlorine 1 If pH has been calibrated with buffer fluid but the pool water has an entirely different pH wait until MiniMaster has achieved pH 7 2 7 4 either through automatic or manual dosing of acid alkali 2 Test measure free chlorine Take measurement water from the drain tap N on the prefilter Use photometric measurement equipment and check that the free chlorine lies within 0 5 1 5mg I ppm 3 Calibrate the unit by pressing the two calibration buttons F G at the same time and keep them pressed The LED flashes quickly approx 5 times per second to confirm that calibrat
5. 5 Yellow 6 Yellow High Calibration value pH lt 6 8 6 8 7 0 7 0 7 2 rec 7 2 7 4 7 4 7 6 7 6 7 8 gt 7 8 Freechorne lt 80 60 30 EE 30 60 gt 80 rec 0 5 1 5 ppm Flow L h lt 10 11 18 18 26 27 52 53 72 72 100 gt 100 Pahl n gt 15 swimming pool equipment MA60 16E MiniMaster EH LEDs Type of LED signal Meaning The two red LEDs are lit with a steady glow The unit is not calibrated Dosing is not possible The two red LEDs blink Flow too high or too low Dosing is deactivated LED is lit with a steady glow Measurement ongoing dosing mode is activated Blinking LED Measurement ongoing dosing mode is not activated Rolling LEDs Forced dosing is in progress 11 Buttons E On Off activates deactivates the dosing function F Flow pressed button shows the current flow through the MiniMaster flow cell F G Calibration G Forced dosing pressed button for 3 seconds causes forced dosing for 2 minutes of chlorine or 30 seconds for pH rolling LEDs If an ongoing forced dosing needs to be discontinued early press button E 12 Change of factory settings Time Out exceeded dosing time The time out function is a built in safety catch in the software and is a limit on continuous dosing time The function is factory set and shuts off the dosing and triggers an alarm after 90 minutes of continuous dosing This is to p
6. chemicals Liquid chlorine and liquid acid are strong chemicals with alkali and acidic properties These MAY NOT be mixed with each other as this can cause strong chemical reactions The different chemical containers shall be placed well separated from each other and stand in its own reclamation container l When handling these chemicals protective equipment shall always be used such as protective gloves l apron and protective glasses ba a mee Zeg et Jm eng wa Zem Je O al pen eme mmm mot Sg O emm Ji eg em ee O m zem O g e Pahlen 24 17 swimming pool equipment MA60 16E MiniMaster 14 Operating information and troubleshooting LED signals Type of LED signal Explanation The two red LEDs are lit with a steady glow The unit is not calibrated dosing is not possible The two red LEDs flash alternately Flow too high or too low dosing is deactivated All red and yellow LED s blink simultaneously Time Out function Continuous dosing has been under way more than 90 min dosing is turned off e Check dosing pump s function and setting e Check that the chemical level is not too low in the drums e Check leaks function of dosing hoses dosing points and dosing pumps Restart First turn off the dosing On Off button E wait a few seconds then start the dosing by pressing the On Off button again E LED is lit with a steady glow Dosing is activated measu
7. 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 5 Pahl n 24 anien 14 swimming pool equipment MA60 16E MiniMaster EH 9 Calibration The electrodes shall be cleaned the flow cell shall have the right flow and the dosing mode shall be deactivated before calibra tion is done Every unit is calibrated separately they are independent of each other Calibrate pH 1 Reference to calibrate against can either be the pool water alt 1 or buffer fluid alt 2 The pH value shall be between 7 2 and 7 4 Alt 1 pool water Take measurement water from the drain tap on the prefilter N and check it with the photometric measure ment instrument Alt 2 buffer fluid Switch off the measurement water to the flow cell Disconnect brace M fold out the modules disconnect the electrode s BNC contact see picture5 from the control unit
8. MA60 16E 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 Picture 7 MiniMaster G Pool Measuring Control Oe 23 KERSS o d Low High J a Pahl n 7 F 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 J 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 t
9. ange the dosing setting for acid repeat from step 1 When the start sequence is done the set mode is confirmed with a blinking indication LED no 2 4 and 6 blink acid dosing activated 13 Care Upon back flushing of the pool s sand filter first close the shut off valves L1 and L2 on the prefilter to and from MiniMaster Check flow with pressed button F adjust to the right flow with adjustment screw H on the start module Reference measurement of chlorine and pH should be performed 1 2 times per month with digital photometric measurement equipment and with subsequent calibration Take measurement water from measurement water outlet on the prefilter Upon a deviation from calibrated value clean the electrodes and calibrate afterwards The plug threads and O rings should be lubricated at least once per year with silicone grease with PTFE non petroleum based grease Check hoses connections and chemical levels regularly Electrodes Should be cleaned regularly see instruction MA60 06 Electrodes handling and care at least once a month for a fresh water pool For a salt water pool contact AF for information on handling and care of MiniMaster in salt water Switch off dosing on off button E LED blinks Cut off the flow of water by closing the ball valves L1 and L2 Lift up the lock arm M and lower the modules forward see picture 3 Disconnect the electrode s BNC connector see picture 5 from the control unit
10. culation pump see B picture 3 7 Cut the included hose to two suitable lengths install hose coupling to the respective tapping sleeve Use threaded seal at the connection of bushing 1 4 1 2 to the tapping sleeve line pipe 8 Connect the one hose to the prefilter and to inlet A 9 Connect the other hose to the prefilter and to outlet B Alternative placement of outlet B Guide the hose directly down in the skimmer C picture 3 or to an equalization tank 10 If dosage pumps are used for liquid chlorine and acid alkali the dosing points shall be placed a MINIMUM of 500 mm apart from each other after other equipment for heating other disinfection Chlorine dosing is always placed last Fig 4 C 1 Skimmer 2 Main drain 2 3 Inlet 4 JetSwim 5 Light 6 Circulation pump pool 7 Filter 8 Heat exchanger B 9 Check valve 10 Drain 11 Circulation pump heat 12 Boiler 13 MiniMaster 14 Prefilter MiniMaster 15 Chlorine dosing 16 Chlorine 17 Acid alkali dosing 18 Acid alkali Picture 2 ERR A Ball valve L2 N water tap M Measurement water outlet gt 500 Picture 3 Pahlen gt swimming pool equipment MA60 16E MiniMaster EH 7 Installation electrics Electrical installation must always be carried out by a an authorized electrician Pipe installation must be complete before electrical installation is started Pahl n recommends a f
11. he 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 I 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
12. ion is in progress 4 The flashing slows down once calibration is complete You can then release the buttons The calibrated value is saved in the unit memory The green LED in the middle turns on and now represents this value 5 Once the unit is calibrated dosing is activated by pressing the On Off button E on the control unit The LED for the current value is now lit with a steady glow If calibration fails it is often due to an implausible value the previous value is then retained The calibration then needs to be redone or see section 14 Trouble shooting 10 Operation The measured value in the pool is indicated on the display with the seven LEDs A green LED shows MiniMaster s calibrated value everything is OK and is the unit s desired value Yellow red LED indicates a deviation from the calibrated value see table below A blinking LED means that MiniMaster is measuring and a steady glow means measurement and an activated dosing mode for more information see LEDs on the next page Upon a high pH Relay output R activated refers to acid dosing Upon a low pH Relay output R activated refers to alkali dosing see section 12 Change of factory settings Upon a low free chlorine Relay output R activated refers to chlorine dosing Picture 8 MiniMaster G Pool Measuring Control E 234 5 6 d Pahl n www pahlen com fy NON LED 1 Red 4 Green 7 Red d Sen 2 Yellow 3 Yellow Ok
13. ixed installation with a 2 pole working breaker Loosen the cover s four screws The control unit cover can easily be hooked into open position to facilitate the installation work NOTE Ensure that the band cable from the circuit board to the cover is not pinched Hook on the cover according to picture 5 Connect the power cable and any dosing equipment as indicated in the diagram below The multi pole contacts to the circuit board can be uninstalled for access to screw plinths for the respective cable connection Circuit board control unit Chlorine and or pH AC IN Main current connection to the unit Relay connection Connection of dosing equipment 230 VAC NOT potential free Max 1A Dosage R Phase for dosing chlorine and equipment pH elevating agent 1 230V AC R Phase for dosing pH reducing agent N RN Zero Neutral common for dosing eee eee 1 230V AC f OC OC Transistor open collector output for dosing equipment max 5V L 10 GND SH Chlorine elektrode Flow Dosage pH Chlorine equipment Connector for electrode connection 1 4 4 max 5V DC Connection of flow signal between circuit boards 416620 X only ken zm zm em ee ee eee ee pm zm ail GND VOC Ground socket connection S Chlorine measurement only Picture 5 A A 1 1 Carefully hook the cover on the circuit board s edge Pahlen gt 13 swimming pool equipment
14. ration not stable calibrated value e Dosing set too high or low Adjust dosing based on pool volume and turnover rate e Check that the water flow is even through the flow cell e Check electrodes condition and connections Underpressure in return hose flow cell Press the Flow button F see picture 6 open Adjustment Screws H see picture 7 to max position Then cut the flow with the ball valve L2 see picture 2 carefully until LED 1 to 4 are lit Reservation We reserve the right to correct any printing errors We also reserve the right to make changes to technical specifications for MiniMaster or its manual without prior notice Colour deviations may occur due to technical reasons related to printing Pahlen gt 18 swimming pool equipment
15. rement is in progress Blinking LED Dosing is NOT activated but measurement is in progress Rolling LEDs Forced dosing is in progress Only applies to the chlorine unit Blinking LED 3 4 5 after start sequence Time Out activated dosing is blocked after 90 minutes of continuous dosing factory setting Blinking LED 3 4 6 after start sequence Time Out deactivated unlimited continuous dosing Only applies to the pH unit Blinking LED 2 4 5 after start sequence Alkali dosing activated Blinking LED 2 4 6 after start sequence Acid dosing activated Troubleshooting Fault type Action The unit dosing equipment does not start e If the unit is interlocked over a turned off circulation pump the unit will not start e Check fuses on the circuit board Unstable low flow in the flow cell Check clean prefilter Clean and lubricate the adjustment screw on the flow cell Unit cannot be calibrated e Low high measurement water flow only chlorine unit check filter e Unreasonable measurement values free chlorine lt 0 3ppm or gt 3 0ppm check the chlorine values with photometric equipment e High Cyanuric acid contents in the pool water check with photometric equipment Dilute the pool water with tap water as necessary Electrode or connection error check connections clean electrodes or replace them High and low values during ope
16. revent unreasonable dosing which can occur in the event of e g leakage or measurement error If the dosing equipment needs more than 90 minutes of dosing to achieve the correct values the Time Out function can be deactivated see below When the power to MiniMaster is turned on a start sequence is triggered after about 2 seconds and the LEDs 1 7 are lit in sequence thereafter the set mode is shown see point 5 below Deactivation of Time Out only the chlorine unit Switch off power to MiniMaster Switch on the power Press button E when LED 1 turns on release when LED 2 turns on respective LED blinks 2 times second Press button E when LED 6 turns on release when LED 7 turns on When the start sequence is done the set mode is confirmed with a blinking indication LED no 3 4 and 6 blink deactivated Time Out LED no 3 4 and 5 blink activated Time Out Save the setting by holding in button E for 3 seconds directly after finished confirmed LED indication blinks 5 times until LED 1 or 7 blinks rapidly 6 To check which setting the unit has turn off wait approx 3 sec turn on power to the unit LED 1 to 7 blinks during the start sequence with ensuing blinking indication as per point 5 7 To activate the Time Out function again repeat from step 1 ia lS NOTE If Time Out is deactivated an extended period of time and a fault arises an unlimited amount of chemicals can be dosed into the pool or leak ou
17. t in the machine room Always check hoses connections and chemical levels regularly and ensure that Time Out is activated Dosing setting acid or alkali Dosing function of pH reducing agent acid is factory set on the pH unit When the power to MiniMaster is turned on a start sequence is triggered after about 2 seconds and the LEDs 1 to 7 are lit in sequence thereafter the set mode is shown see point 5 below If you instead want to dose alkali for a pH increasing effect a resetting must be done as per below NOTE This only applies to the pH unit and pH calibration must be done before this change is begun Resetting to dosing of Alkali only the pH unit 1 Switch off power to MiniMaster 2 Switch on the power 3 Press button E when LED 1 turns on release when LED 2 turns on respective LED blinks 2 times second 4 Press button E when LED 6 turns on release when LED 7 turns on Pahlen gt 16 swimming pool equipment MA60 16E MiniMaster EH 5 When the start sequence is done the set mode is confirmed with a blinking indication LED no 2 4 and 5 blink alkali dosing activated Save the setting by holding in button E for 2 seconds directly after finished confirmed LED indication until LED 1 and 7 blink rapidly 6 To check which setting the unit has turn off wait approx 3 sec turn on power to the unit LED 1 to 7 blinks during the start sequence with ensuing blinking indication as per point 5 7 To ch
18. ter ph chlorine MiniMaster chlorine or pH 310 310 500 500 Pahlen gt 11 swimming pool equipment MA60 16E MiniMaster 6 Installation Tapping sleeves are recommended for installation of the pipe lines for the connection points of the measurement water to and from MiniMaster and for the dosage points for liquid acid and chlorine via hose pumps Hard PE hose is included that shall sit between MiniMaster the prefilter and the pipe lines Picture 1 1 Install MiniMaster against a wall Install the included connections on MiniMaster see picture 2 Disconnect the brace M fold the modules forward screw the connections on MiniMaster s inlet and outlet 2 Assemble the prefilter see instructions MA60 23 NOTE The top on the filter has an arrow marking the flow direction 3 Install the prefilter at a suitable location near the MiniMaster 4 Cut the included hose to suitable lengths and connect them without sharp bends between the MiniMaster and prefilter NOTE When installing hose in hose couplings of an insert type Make a straight cut with a sharp knife in the hose push in the hose end approx 10mm in the coupling then pull the hose backwards for secure locking 5 Inlet A Install a tapping sleeve after the sand filter on the pressure side of the pool circulation pump see A picture 3 6 Outlet B Install a tapping sleeve after the skimmer on the suction side of the pool cir
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