Peridoser Kit. Solenoid Kit. English. Instruction Manual Version P1.3 : copyright 2011, all rights reserved, Bluelab Corporation Limited

Transcription

1 dosetronic Peridoser Kit Solenoid Kit English Instruction Manual copyright 011, all rights reserved, Bluelab Corporation Limited

2 Bluelab Dosetronic Kit Congratulations on purchasing the Bluelab Peridoser Dosetronic kit. The Bluelab Dosetronic offers growers a simple solution for automatic dosing. Simply program the controller for the conductivity, temperature and ph values that you want your system to run at, and then tailor the dosing intervals to suit the size of your mixing tank. Simple! By using high performance conductivity, temperature and ph probes, the Bluelab Dosetronic will control the strength of your re-circulating solution to a high level of accuracy. When it detects that the conductivity, temperature or ph levels have fallen outside of your pre-programmed set points, it will automatically trigger the dosing of more nutrient or ph adjustor until those levels have stabilised. This means you can spend more time doing the things you enjoy and less maintaining your system. The Dosetronic has proven itself in the hydroponic market worldwide for over 0 years and has earned itself an international reputation for excellence. This is why so many commercial growers are using the Bluelab Dosetronic to save time, money and improve their yield. It is one of the most simple, robust and reliable controllers in its class!

3 Contents Quick Guide 1.1 Quick Guide 1 1. Dosetronic Kit Contents 1.3 System Overview Dosetronic Control Panel Dosetronic Connection Panel 5 Dosetronic System Installation and Wiring 7.1 Overview 7. Nutrient Tank Set-up 7.3 Stock Solution Location 8.4 Dosing System Set-up 8.5 Mount Dosetronic Control Case 9.6 Wall Mount Sample Pot 10.7 Probe connection and placement 11.8 Adjustment 1.9 Heater/Cooler setup Mount Alarm Box Alarm Box Internal Overview 14.1 Wiring Alarm and External Lockout Main Power 16

4 Contents Display Setup Overview Monitor only Units Control Direction Required / Alarms On Times Off Times Calibrate ph Calibration Conductivity Calibration Control Function 7 Preparing System to Run Prepare the Dosetronic system to run Manual override control 30 Maintenance Conductivity probe cleaning ph probe maintenance 3 Trouble shooting Overview Error messages Error FAQ 34 Specifications 35 Lockout Switches 37 year Guarantee Registration Form 39

5 1 1.1 Quick Guide This page shows a quick guide to setting up the Dosetronic in monitor mode. It serves as a quick way to check that the controller is operational. 5 1 Monitor mode 1. Prior to mounting, attach the, ph and Conductivity probe to Dosetronic unit.. Plug in power adaptor. 3. Place probes in solution Menu change probe Air 4. Wait a few minutes for readings to stabilise. Water ph probe Power adaptor 3 Conductivity probe 4 1

6 1 1. Dosetronic Kit Contents Acid Hose (5m/16 ½ft) 13mm braided hose (10m/33 ft) in & out power cables (country specific) Testing Solutions for probe care and maintenance Alarm and external lockout box 3 x 0mm/¾ flushing ball valves Dosetronic controller and Power Supply Sample Board Bluelab Triple Peridoser (nutrient & ph) 15cc syringe of Tube Lubricating Gel Bluelab Dosetronic Peridoser kit Controller Power Supply Power in and Power out cables (country specific) ph probe with ATC conductivity probe temperature probe Triple Peridoser and cable connection ph and conductivity probe maintenance kit Sample board Fittings kit Instruction manual Alarm & external lockout box 5 x 13mm/½ acid elbows 3 x 19mm/¾ tank fittings Instruction Manual 3 x 19mm/¾ to 13mm/½ nut & tail Probe Conductivity Probe 4 x 13mm/½ joiners Bluelab ph probe with ATC 10 x 13mm/½ elbows

7 1 1.3 System Overview It is useful to plan where the labelled components will be situated before beginning installation of the system. Generally the components are installed in this order. 5 Ambient Air Alarm Power ph Probe Conductivity Probe Sample Pot probe 4 Heater / Cooler Peridoser 3 Flushing ball Valves To Crop Crop Return T Fitting Nutrient A Nutrient B ph Pump Main Nutrient Tank 1 Float Valve Stock Solutions * Setup shows temperature probe immersed in solution. 3

8 1 1.4 Dosetronic Control Panel Actual readings Required readings Controller settings Control direction Units Measurement Selection Conductivity ph Mode selection keys ph calibration indicators ph ATC Automatic Compensation Display brightness Alarm & Value Alarm indicator increase/decrease External lockout indicator 4

9 1 1.5 Dosetronic Connection Panel control power In Alarm & external lockout box Probe Power In Power Out Power Alarm ph ATC ph ATC control power out Power Input DC INPUT: 5V --- 3A Dosing system Conductivity ph ph Probe Conductivity Probe Peridoser Main power Note: When inserting connecter, rotate to ensure it mates correctly. Do not force it or you may bend/ damage pins. Fasten locking ring if applicable. 5

10 6

11 Dosetronic System Installation and Wiring.1 Overview To effectively set up the Dosetronic system you must plan for where all the components of the system will be placed. It will be helpful to refer to the larger picture of the System overview on page 3. This section highlights the steps in chronological order you need to take for installation of the Dosetronic kit. Conductivity Probe ph Probe Sample Pot probe Please read through this section and create a rough system layout before installation. To Crop Flushing ball Valves. Nutrient Tank Set-up The nutrient tank requires a constant water level, water level regulators such as a plastic ball cock or fl oat switch are recommended. For large tanks mixing and/or aeration systems are required. If there is no mixing system in smaller tanks, stock solutions should be fed in where the crop return and fresh water enter the tank. Crop Return T Fitting Pump Main Nutrient Tank Float Valve Nutrient A Nutrient B ph Lower 7

12 .3 Stock Solution Location The stock solution tanks need to be within close proximity to your main nutrient mixing tank. This allows the peridoser to give a consistent dose. Align stock tanks near nutrient mixing tank..4 Dosing System Set-up The Peridoser doses an even amount of nutrient to your tank at defi ned intervals. These intervals are set in the off times and on times found in the mode menu. The instructions for this are on page 3 and Attach supplied braided hose onto the left hand side of Peridoser nozzles and feed hose into allocated stock tanks. Use acid resistant hose for ph solutions. To ensure even dosing, all hoses need to be the same length. The stock solutions must drop into nutrient tank, this stops a syphon action from occurring. To avoid precipitation, A and B nutrient must not mix until after they enter the tank. Peridoser Note: To prevent floating, ensure hose is secured to the bottom of the tanks.. Attach tubing onto the right hand side of each Peridoser nozzle. Set them up so they drop into the nutrient mixing tank. NOTE: Do not plug Peridoser into power until you have programmed the Dosetronic Controller. The nutrient and ph stock solutions must enter the nutrient tank in a location where there is good mixing. To prevent acid damage on your acid piping and fi ttings, dilute your acid solution to 10% or less. Nutrient A Nutrient B ph 8

13 I I I Bluelab Corporation Limited.5 Mount Dosetronic Control Case I I I I I I I The Dosetronic has an indoor, splash-proof case and should be installed in a pump room or shed. It is designed for use with a sample pot that is fi lled with water from the nutrient mixing tank. Conductivity, temperature and ph measurement probes that connect to the Dosetronic are placed inside it, therefore the Dosetronic needs to be installed close to the sample pot to enable the probes to reach. I I I I I I I I Keep Dosetronic out of direct sunlight Steps 1. Locate area Find appropriate fl at vertical surface to mount Doestronic controller. The Dosetronic controller cables need to be within reach of the Peridoser, sample pot and power outlet. Avoid mounting near electrical mains and other powered devices. Secure Controller Secure Dosetronic to the wall with the self tapping fasteners provided. Mount electronic equipment such as the Dosetronic above the sample pot. This is because some water may escape when the conductivity probe is cleaned. 9

14 .6 Wall Mount Sample Pot Steps 1. Fix sample pot in position Select a position on the wall that is near the nutrient tank pump and where all probe cables from the Dosetronic can reach. If the Dosetronic is being installed into a system that is already operating, it is an option that you could use a submersible aquarium pump to pump water from the nutrient tank to the sample pot.. Fit Inlet Piping Fit a T junction to pipes feeding the crop and connect supplied fl ushing ball valve. Conductivity ph 3. Fit Outlet Piping Connect piping to the outlet of the sample pot and fi x into a position where it can fl ow back into the nutrient tank. 4. Flush out plastic (swarf) and residue Open sample pot inlet valve, allow sample pot to fi ll and then close the valve and allow it to drain as much as possible. 5. Adjust inlet valve Remove lid of sample pot. Adjust fl ushing ball valve until the water inside the sample pot can fl ow through the outlet pipe back to the tank. Pipes feeding crop To crop nutrient tank Flushing Ball Valve Corner mounting screws 10

15 DC INPUT: 5V --- 3A Bluelab Corporation Limited.7 Probe connection and placement ph and ph ATC ph ATC The ph probe provided has automatic temperature compensation (ATC). It connects to two separate sockets. The sockets are labelled are ph and ph ATC. Together they provide a temperature compensated reading that is more accurate than a standard ph probe. Note: A standard ph probe with a BNC plug can be used on its own with the Dosetronic but ph readings will not be temperature compensated. Conductivity Probe This socket connects to the conductivity probe that attaches to a T fi tting coming off the inlet pipe on the sample pot. Conductivity Conductivity ph ph Manufactured in New Zealand by: Bluelab Corporation Limited 8 Whiore Ave Tauriko Industrial Park Tauranga 3140 New Zealand Power In Power Out Power Input Probe This socket connects to the temperature probe that can read air temperature or be submerged in the sample pot to read the solution temperature. 11

16 .8 Heater/Cooler Setup Power In Power Out The Dosetronic can control either air or water temperature via an external heater/cooler. Power In Power Out Power Alarm ph ATC These sockets allow the Dosetronic to switch the heater or cooler on and off. Power Input DC INPUT: 5V --- 3A Dosing system Conductivity ph The heater/cooler works at defi ned intervals. These intervals can be programmed in the On and Off Times found in the Mode menu. Instructions for this can be found on page 3 and 4. Note: Do not connect the Power In to power source until you have programmed the Dosetronic Controller. Power In This socket provides external power for the heater or cooler. Or Power Out This socket is where you plug in a heater or cooler. Power In Note: You must place temperature probe in what you are controlling Power Out 1

17 .9 External Alarm and Lockout Box The alarm box has three functions: 1. It has an Internal alarm that sounds when a designated alarm setting has been breached. This feature can be enabled/disabled manually by opening up the alarm casing and moving the link (see diagram on next page). It can also be connected to an alternative external alarm e.g. a horn or fl ashing light. This can be done through the external alarm wiring terminals provided (see diagram on next page). Power In Alarm Box Power Out Power Input DC INPUT: 5V --- 3A Note: If no functions provided by the Alarm Box are required, it does not need to be installed/connected. Power Alarm Dosing system Conductivity ph ATC ph 3. It has an External Lockout function. When an external lockout function is sensed in control mode (e.g through a water fl ow switch) the Dosetronic will stop all control and dosing. The external lockout terminal can be accessed on the circuit board found inside the alarm box (See diagram on next page)..10 Mount external Alarm Box 1. Locate appropriate area on the wall for the Alarm box.. Secure box to wall with self tapping screws provided. Mounting points External Alarm External Lockout Sensor 13

18 .11 Alarm Box Internal Overview Internal alarm External alarm terminals * EXT ALARM Factory installed link is across NC (normally closed) terminals. Remove when installing any NC switches. DIS / ENA COM NC NO LOCKOUT Common Normally closed Normally open External lockout terminals Disable / Enable link for internal alarm 14

19 .1 Wiring Alarm and External Lockout We Supply You Supply External alarm - + To connect an external alarm to your system, put a wire on each side of the closing contacts marked EXT ALARM. EXT ALARM Note: The external alarm needs to have an independent power source. Refer to specifi cations for maximum power rating External lockout Common To enable the external lockout function on the Dosetronic, a switch needs to be connected to the external lockout wiring terminal on the alarm circuit board (see diagram on page 14). There are two types of switches that can be wired in: those that are normally open and those that are normally closed. For example: If you connect a fl ow switch (that opens when water stops fl owing) to the normally closed port, the external lockout function will sense that the water has stopped and stop your system from dosing. COM NC NO COM NC NO Normally Closed Normally Open Note: You can have both NC and NO combinations connected Series Parallel Connect multiple normally closed switches in series Connect multiple normally open switches in parallel 15

20 .13 Main Power Main Power Once you have set up your system, connect it to the power supply. The following chapter will explain how to program your controller. Power In Power Out Power Input DC INPUT: 5V --- 3A Power Alarm Dosing system Conductivity ph ATC ph 1. Connect the mains plug adaptor to the power supply. Ensure it is pushed fully on and locked into place. Push fi rmly in 16

21 3 Display Setup Mode selection menu 3.1 Overview Measurement selection arrow keys Controller modes Can be selected using the direction keys in the mode selection menu. Measurement selection There are three measurements: conductivity, temperature and ph. These can be selected using the measurement selection arrow keys. Value increase/decrease Value adjustments can be made by the increase/decrease buttons when in the appropriate mode Value increase/decrease keys 17

22 3 3. Monitor only mode Monitor mode shows only the readings from your conductivity, temperature and ph probes. No control action occurs. Press mode up and down keys to select. Alarm Function To turn the alarm on or off press this key. If it is activated the indicator next to the button will be lit. It can be changed during any mode Brightness Control 1. Press and hold down the brightness button.. Adjust brightness using increase/decrease buttons. This can be done at any time br 8 1 External lockout This indicator is lit whenever a lockout condition is sensed through the alarm box. If sensed, all control activity will be stopped. If the alarm box is plugged in and sensors connected (see Page 13 & 15). 18

23 3 3.3 Units mode 1. Select units Press up and down keys to select mode. Units EC/CF indicator. Select desired measurement to change by pressing its arrow key. 3. Switch between units Use the value increase/ decrease keys to switch to your desired units of measurement Note: The EC/CF indicator has two units for one LED. To change between the two, press the value key twice. The difference between the two is that EC has a decimal place, where CF does not. 3 Note: ph has no selectable units 19

24 3 3.4 Control direction mode Control direction lets you specify in what direction you want the Dosetronic to adjust your system. Control direction 1. Select control direction Press up and down keys to select mode.. Select desired measurement to change by pressing its arrow key. 3. Switch between units Use the value increase/decrease keys to change your control direction Off 1 Mode selection keys 3 Conductivity: Raise only or off : Raise or lower or off ph: Raise or lower or off Measurement selection keys Value increase/decrease keys 0

25 3 Please record your values here for future reference. Nutrient Alarm High Required Alarm Low Alarm High Start Stop Alarm Low ph Alarm High Required Alarm Low 3.5 Required / Alarms mode Required/Alarms lets you set the values you require the Dosetronic to maintain. It also lets you set a high alarm and a low alarm value so the system can notify you if these are exceeded. 1. Select required/alarms Press up and down keys to select mode.. Select measurement to change To edit values press the appropriate measurement button and press the same button again to toggle between settings for this measurement. Note: See following page for how to set the temperature values. 3. Edit alarm and required values Use the value increase/decrease buttons to change the value you have selected. Note: If the values you are changing in required reach that of Alarm High or Alarm Low they will bump these values so they don t overlap. Alarm Hi Required Alarm Low Alarm Quick-set This allows you to quickly set the alarm HIGH and alarm LOW values for all of the three measurements. The alarm values are taken from the actual readings. The table below shows the values that are present when quick-set is used. AL.H1 rd AL.LO 3 Conductivity ph Note: Selected value will be brighter than other values displayed Alarm Low Actual value -- CF / 0. EC 100 TDS 140 ppm Actual value -- 3 C / 5 F Actual value -- Alarm Hi Actual value + CF / 0. EC 100 TDS 140 ppm Actual value + 3 C / 5 F Actual value + 1 1

26 Required / Alarms control works slightly different from conductivity and ph. This is because temperature is hard to maintain constantly. For example if you are heating your greenhouse the temperature on value will turn on the heater and temperature off will turn the heater off when these temperature values are sensed. Alarm High on Alarm Low AL.H AL.LO off Control Off If using a Raise / Heating Device Control On 6 C 4 C Note: It is normal practice to set your temperature on time to continuous. The following page shows you how to do this. This allows the heater/cooler to operate until the temperature off value is reached. If using a Lower / Cooling Device Control Off

27 Nutrient ph times times times 3On Please record your values here for future reference. 3.6 On Times On times are how long you dose for. Together with the Off Times this allows the Dosetronic to make small frequent changes to the conductivity, ph and temperature of your system. Adjust on time so that 3+ doses changes the actual value by 1 digit. Adjust off time (following page) to a little longer than the time it takes for a dose to be mixed and the change sensed by the probes. 1. Select On times Press up and down keys to select mode.. Select desired measurement and value to change To programme On Times select the appropriate measurement. Note: Selected value will be brighter than other values displayed. 3. Programme desired On Times Press (or hold down) the value increase/decrease buttons to change the value you have selected. cont OO.O1 OO.53 Note: Start with short on times and adjust from there. 3 Note: Continuous Mode 1 Programmable from 0-10 minutes in one second steps. cont This allows you to set your nutrient pumps, ph adjuster and/or heater/cooler to work continuously until the values reach the required reading. This is helpful for temperature regulation when you want the heater/cooler to start at one temperature and run continuously until off temperature is reached. 3

28 3 3.7 Off Times Please record your values here for future reference. Nutrient Off times Off times are how long no dosing will occur for. This gives your system time to adjust/mix so that the Dosetronic can measure the changes it has made before deciding if it needs to dose again. 1. Select Off Times Press up and down keys to select mode Off times ph Off times. Select desired measurement and value to change To programme Off Times select the appropriate measurement. Note: The selected value will be brighter than other values displayed. 3. Programme desired Off Times Press (or hold down) the value increase/decrease buttons to change the value you have selected. Note: Start with long off times and adjust from here 3 Programmable from 0-59 minutes and 59 seconds in ten second steps 4

29 3 3.8 Calibration Calibration is an essential part of maintaining your probes. It ensures your readings are accurate and needs to be done regularly. 1. Select Calibrate Press up and down keys to select mode. 3.9 ph Calibration 1. Rinse ph probe in fresh water and place probe in ph 7.0 calibration solution and wait for reading to stabilise. Press and hold the measurement arrow key and wait for ph cal to be displayed. If the indicator turns green proceed to step.. Rinse ph probe in fresh water and place probe in ph 4.0 or ph 10.0 calibration solution and wait for reading to stabilise. Press and hold the ph button. 7.0 = 7 Calibration Status Using factory default calibration values. ph 7 calibrated OK. Using factory default for ph 4 and/or 10. ph 7 & ph 4 calibrated OK. Indicators fl ashing - 30 days have passed If you get Err displayed check: since last full calibration. Calibration due. 1) calibration solutions are correct ) Probe is not damaged 3) Probe is connected correctly If Err is still displayed then the probe needs replacing ph CAL ph probe evaluation ph probes age over time. They should be replaced at least once a year. Whenever you calibrate your probe, an indicator will show the health and tell you if you need to replace the probe. = 7 _ 7 7 Excellent OK Poor Err Replace 1 5

30 Conductivity Calibration Conductivity calibration is not generally required. If you do notice that your readings are not accurate, the fi rst thing you should do is clean your probes. If readings are still inaccurate the conductivity probe can be calibrated using a known nutrient solution of.77ec (see chart for corresponding units) 1. Place conductivity probe in conductivity standard solution Calibrate Conductivity Select Conductivity measurement. 3. Conductivity adjustment Adjust until actual value is.8ec (or chosen unit) by using increase / decrease keys. Solution Value Displayed Value 3 Calibration Values EC CF ppm 500 ppm 700 (TDS) (EC x 700)

31 Control Control mode monitors your Actual readings and adjusts them to the Required values you have programmed in the Required/ alarms mode. It does this through the dosing systems installed. Note: It is advised that you go through Preparing system to run in the next chapter before setting the system in control mode. 1. Select Control Press up and down keys to select mode. Actual Required Controller will adjust nutrient, ph and temperature levels accordingly. When the system is dosing and the values are being adjusted the control direction indicator lights will fl ash. Note: If an actual value is flashing in control mode and your dosing system is not dosing it may be because the value is outside of the control range. This can be changed by manually increasing your nutrient levels in the stock tank. For more information see the troubleshooting section. 7

32 8

33 4 Preparing System to Run Setting up the Dosetronic system involves setting the Control direction, Required values and On and Off times. These settings can be edited by scrolling through the Mode menu on the Dosetronic Control panel. The steps for this are outlined in chapter Prepare the Dosetronic system to run. Step 1. Flush out PVC shavings and glue residue If your system has been installed it is important to fl ush out PVC shavings (swarf) and any glue residue before growing commences. To do this fi ll your nutrient tank and then fl ush all water from your system. Step. Fill tanks A, B and ph with stock solutions. Step 3. Manually prime tank In order for the Dosetronic to adjust your main nutrient tank to your programmed required values you need to manually prime the tank with nutrient. By Raising the EC to above 0.1 the Dosetronic will be able to start dosing. Dosing stops at EC to prevent dosing if the probe is out of solution. (Instructions are on the following page) Step 4. Check readings/settings Make sure all your settings are working and that your readings are within your required range by scrolling through the mode menu. Step 5. Plug peridoser into mains power. Outlined on page 10 Step 6. Plug heater/cooler into mains power. Outlined on page 1 Step 7. Complete checklist opposite. Step 8. Select Control in mode menu. System should be running. Monitor system regularly for 4 hours to check On & Off times are correct and control is stable. Note: The ph probe must be kept wet at all times. Ensure the nutrient probe is clean and the ph probe calibrated before starting this task. Final Checklist Nutrient tank set-up Stock solution Dosing system Control case Probe connections Heater/Cooler Alarm Box Main Power Units Control direction Off Times On Times ph calibration Check dosing 9

34 4 4. Manual override Control Manual control lets you dose or alter temperature by holding down the measurement you want to change and both the mode selection keys. 1. Select monitor mode using the mode selection keys.. Press and hold the measurement key you want to change. 3. Press both mode keys (3+4) together and release Continue to hold measurement key while dosing and release key to stop

35 5 Maintenance 5.1 Conductivity probe cleaning Over time, nutrient salts build up on the face of the conductivity probe. This effects conductivity readings so the face of the probe must to be cleaned at least once a month Remove shroud by holding the body and pulling away the shroud.. Using the Bluelab conductivity probe cleaner or an unscented liquid scourer such as Jif or Soft Scrub place one or two drops onto the probe face Using a fi nger or Bluelab chamois, rub fi rmly and vigorously to clean probe face. 4. Check that water forms an even fi lm across the surface of the probe. If beading of water is present, clean again. Beading indicates the presence of oil on the probe surface. This effects readings Refi t the shroud and test in 7.7 CF/.77 EC solution. If reading is out it can be edited in calibration mode. See page 6 for calibration information. Always clean probe before calibrating. 31

36 5 5. ph probe cleaning 1 Over time, nutrient salts build up on the glassware of the ph probe when it is in the sample pot. This can effect ph readings so cleaning once a month is important. ALWAYS CLEAN PRIOR TO CALIBRATING 1. Rinse ph probe tip under fresh water.. Fill a small container with clean water and add a small amount of Bluelab ph probe cleaner or mild detergent (dishwashing liquid). 3. Gently stir the ph probe tip in the mixture. Ensure that you do not knock the probe on the side of the container as this may cause damage to the probe. Rinse well under fresh running water to remove all traces of detergent mixture. 4. Only if the probe tip requires removal of sediment, gently brush around the glassware with a few drops of Bluelab ph probe cleaner or mild detergent (dishwashing liquid) and a soft toothbrush. DO NOT pull out or touch the wick Rinse well under fresh running water to remove all traces of the detergent mixture. 6. Calibrate probe. See ph calibration on page 5 3

37 6 Trouble shooting 6.1 Overview In general, if your actual readings are fl ashing there will be a problem with the measurement e.g ineffective control. If the required reading is fl ashing then there will be a problem with the method of control e.g an actual value is outside one of the lockout values. (see page 30 for more a detailed explanation) Nutrient reading low Contaminated probe Clean Conductivity probe (see p.31) ph reading inaccurate Contaminated probe Clean ph probe (see p.3). Replace probe if in doubt Calibration has expired Calibrate ph probe (see p.5) 6. Error Messages Err Probe is disconnected or sensor is damaged Ur Measurement is under range ---- EC or ph temperature is out of range (0-50 C) Or Measurement is over range 33

38 6 6.3 Error FAQ Actual values - The probe is out of water. - The EC value of your solution is below Your alarm is enabled, the value has met or exceeded the alarm threshold. - The system has noted ineffective control. The value hasn t changed by steps in 15 cycles (1 cycle = on and off times combined) Required Values - The value you have is outside the internal Lockout values. Problems The alarm high/low (actual value) for one measurement fl ashes, but does not seem to be locking out the intended control (required value) Solutions For a measurement to act as a reason for locking out another control, its control direction must be set to raise or lower. A control seems to be locked out - shouldn t the actual display fl ash for that measurement? A conductivity or ph control locks itself out (its required display is fl ashing). How do I know if the cause was ineffective control? No: it is the required value that fl ashes if the control is locked out. The actual display fl ashes if the measurement is in error, or is in a state that it could be a cause for a lockout (e.g ineffective control, or alarm high.) Lockout due to ineffective control is where the actual Conductivity or ph value does not move two resolution steps in the required direction after 15 on/off cycles. To solve this, change the on and/or off time, so that the system sees a change of one resolution step after 3 cycles. 34

39 7 Specifications ph Conductivity Medium measured Solution Solution Air or Solution Displayable units ph Scale EC CF TDS (ECx500) ppm (EC x700) C F Range ph EC 0-50 CF TDS ppm 0-50 C 3-1 F Resolution 0.1 ph 0.1 EC 1 CF 50 TDS 70 ppm 1 C 1 F Accuracy ±0.1 ph ± 0.1 EC ± 1 CF ±1 C ±1 F Compensation Calibration Yes Yes N/A (If ATC ph probe is connected) One, Two or Three point Yes Not Required 35

40 Switches numbered 1-4 Mains supply Lockout Switches All switches by default are shipped switched on Danger Disconnect the mains supply before removing this cover 36

41 Lockout Switches Warning: Before opening the cover ensure mains power is removed. The Dosetronic controller has a series of internal switches numbered from 1-4. These can be accessed by unscrewing the back panel of the controller (See page 36). They have been preset to lockout (stop control for) temperature, ph and conductivity when any alarm condition has been sensed. These switches can be turned on/off to set lockout behaviour for any alarm condition. The new switch confi guration will not take effect until the controller has been restarted. This can be done by disconnecting then reapplying power For example if you wanted your heater/cooler to stop when the conductivity meets or exceeds the high alarm value you could turn on switch number 9. Alarms Locks Out To Stop Conductivity (Raise) Switch on To Stop (Heat & Cool) Switch on To Stop ph (Raise & Lower) Switch on Low 8 14 Conductivity Alarm High Low Alarm ph High Low Alarm High

42 Thank you for choosing to buy a Bluelab Dosetronic. Please register your free year guarantee. To help us ensure you receive a prompt and effective service, please register your guarantee by completing and returning the form to us, or you are welcome to register online. Go to Bluelab Corporation Limited 8 Whiore Avenue Tauriko Industrial Park Tauranga 3110 New Zealand Customer Care Call the Bluelab Helpline NZ: (Mon - Fri 8:00 to 5:30) or visit the Bluelab website: 38

43 For Future Reference Attach your receipt or proof of purchase here Bluelab Dosetronic details Date of Purchase Place of Purchase Year Guarantee Registration Form Serial Number make a note of your serial number Personal Details Title Initial Surname Telephone House/ Flat No. House/ Flat Name Street Town Postcode Country 39