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Guardian Instruction Manual

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1. probe may require cleaning See probe cleaning on page 13 For best pH calibration Ensure probe is clean and rinse with clean water distilled water to reduce contamination of the pH calibration solutions Only fresh uncontaminated solutions should be used Conductivity temperature probe should also be placed in the same solution as the pH probe while calibration is taking place This is so the monitor can measure the temperature of the calibration solution Wait until the conductivity temperature probe is at the same temperature as the calibration solution Calibrate the pH at the same temperature as the solution to be measured If you expect to measure a pH below 7 0 the monitor is calibrated using pH 7 0 and pH 4 0 calibration solutions If you expect to measure a pH above 7 0 pH 7 0 and pH 10 0 solutions are used ALWAYS Calibrate the pH Probe with pH 7 0 then pH 4 0 or pH 10 0 NOTE The conductivity temperature probe does not need to be calibrated but must be cleaned to remove any build up of nutrient salts Bluelab Corporation Limited 8 Bluelab Guardian Monitor w Version1 180809_bl To calibrate the pH probe follow these steps 1 In three separate containers prepare a small amount of fresh water pH 7 0 solution and either pH 4 0 or pH 10 0 solution Rinse the pH probe in fresh water and place the probe tip into the pH 7 0 buffer solution and wait for the reading in the pH window to stabilise Pr
2. in all three windows 2 Release the button and the current alarm HIGH values are displayed in each window 3 To set conductivity alarm high value press the conductivity unit button then the up and down buttons to change its value 4 To set temperature alarm high value press the temperature unit button then the up and down buttons to change its value 5 To set pH alarm high value press the pH unit button then the up and down buttons to change its value 6 Press the alarm button to now select the low alarm values 7 Set the low alarm values the same way as you did the high alarms 8 Press the alarm button SAVE is briefly displayed in the conductivity window and the Monitor will return to its normal monitoring mode Bluelab Corporation Limited 11 Version1 180809_bl NOTES To review current alarm settings without changing the values repeatedly press the alarm button to step through the high amp low alarms If you want to exit the alarm settings mode without keeping any changes you have made DO NOT press any keys The Monitor will timeout and return to its normal monitoring mode without saving any changes after 1 minute The software will prevent you from setting low alarm values higher than the high alarm values MAINTENANCE Conductivity temperature probe cleaning 1 Remove shroud by holding the body and pulling away the shroud Using an unscented liquid scourer such as Jif or Soft Sc
3. temperature unit Temperature readings can be displayed in either degrees Celsius C or degrees Fahrenheit F The selected unit is indicated by one of the two LEDs next to the Temperature window To change the unit to be displayed 1 Press and hold the temperature units button and after 3 seconds it will change to the next unit indicated by the glowing LED 2 Release Repeat step 1 and 2 until the desired unit is selected STEP 7 Select the desired brightness level of the LED displays These can be adjusted to best suit the light levels of the environment There are eight 8 levels of brightness that can be selected To change the brightness 1 Press and hold the brightness button and at the same time press either the up or down buttons to change the brightness Brightness levels are shown in the pH window 1 least bright 8 brightest Bluelab Corporation Limited 7 Bluelab Guardian Monitor My Ds Version1 180809_ bl STEP 8 pH Calibration PH calibration is required before first use to ensure that the first reading is accurate pH probes require repeated calibration Calibration is advised when Typically more than 30 readings have taken place The reading is different to that expected The pH probe is replaced with a new one It has been a month since the last successful calibration The monitor is reset to factory default When calibrating the pH probe after first use the
4. 78 0847 Email support getbluelab com Limitation of Liability Under no circumstances shall Bluelab Corporation Limited be liable for any claims losses costs and damages of any nature whatsoever including any consequential loss that result from the use of or in inability to use these instructions and or equipment Bluelab Corporation Limited 15 Version1 180809_bl Bluelab Guardian Monitor The instrument is only as accurate as the probe is clean Bluelab cleaning kits Probe cleaning is one of the most important parts of owning and operating any Bluelab Truncheon meter monitor or controller If the probe is contaminated dirty it affects the accuracy of the reading displayed The probe surface is where the instrument takes the reading of the solution The information is sent back from the probe to the electronic brain of the instrument A calculation is then done in the instruments brain or micro computer and a reading is then displayed If the information sent back from the probe is inaccurate due to probe surface contamination then the reading will be inaccurate Cleaning the probes is a very easy task and prolongs the life of the probes The Bluelab cleaning kits have it all there for you pH cleaning and calibration kit p full colour instructions calibration solutions decanter vessels probe deaner toothbrush conductivity probe cleaning kit full colour instructions condu
5. English Instruction Manual Version 1 120809 _bl Copyright 2009 all rights reserved Bluelab Corporation Limited e bluelabs Guardian Monitor Bluelab Guardian Monitor Congratulations for purchasing the Bluelab Guardian Monitor The Guardian Monitor is a continuous indicator of the current levels of EC pH and temperature enabling you to optimise these parameters as your crop progresses through each growing phase Features Measures 0 0 14 0 pH 0 5 0 EC 0 50 CF 0 2500 TDS 0 3500 ppm 0 50 C 32 122 F Large easy to read displays Plant Safe green LED display Selectable units for conductivity and temperature Simple push button pH calibration No calibration required for conductivity or temperature Visual alarm for both high and low settings Settings retained when power lost non volatile memory Automatic Temperature Compensation International power supply Adjustable display brightness Water resistant design 2 year guarantee 6 months for pH probe What is Plant Safe Green LED s are safe for continued growth during a plant s fruiting stage when hours of darkness are required Bluelab Conductivity pH Probe Display Conductivity Units Conductivity Temperature LEDs Display Temperature Temperature Units p LEDs PH Display pH Calibration LEDs pH Calibration i Button j Alarm ON LED Display Brightness Alarm Button Conductivity Temperature probe Down Button Up Button Power I
6. LOW values for all of the three measurements The table below shows the values that are pre set when quick set is used NOTE Before you set the alarms ensure the solution in the tank reservoir is adjusted to the desired actual levels for all three parameters and that these are displayed in each of the windows Bluelab Corporation Limited 10 Bluelab Guardian Monitor Alarm Low Alarm High Conductivity actual value actual value 2CF 0 2 EC 2CF 0 2 EC 100 TDS 100 TDS 140 ppm 140 ppm Temperature actual value actual value 3 C 5 F 3 C 5 F pH actual value actual value 0 5 pH 0 5 pH Version1 180809_bl Bluelab Guardian Monitor To activate the quick set alarm 1 Press and hold the alarm button until AL H is displayed in all three windows 2 Release the alarm button 3 Press the brightness button once All three windows will display Auto for 1 second and then SAVE will be displayed in the conductivity window The alarms are now auto set and the alarm mode will be turned on The alarm LED will glow Turn alarm ON OFF Press the alarm button to change between alarm ON and alarm OFF When the alarm is ON the alarm LED will glow NOTE If you press and hold the alarm button you will enter the alarm setting mode Detailed Alarm Set To set the detailed alarm HIGH and alarm LOW values 1 Press and hold the alarm button until AL H is displayed
7. ctivity standard solution decanter vessel Bluetab probe cleaner Bluelab chamois probe cleaning instrument Bluelab Corporation Limited 16 Version1 180809_bl
8. e The probe tip must be kept moist To prepare the probe for storage place a very small amount clean water never distilled or deionised water or pH 4 0 solution into the wetting cap then place wetting cap over the probe tip If for some reason the probe tip has been allowed to dry out then the probe must be hydrated for 24 hours in fresh clean water or pH 4 0 solution Following this carry out a calibration to check operation as the probe may have already suffered permanent damage Bluelab Corporation Limited 5 Version1 180809_bl STEP 1 Mounting the Monitor If wall mounting Select a suitable location that is less than 2 meters from your tank and less than 1 5 meters from an electrical mains outlet NOTE Avoid placing the monitor where it can be damaged by direct sunlight water or nutrient salts Option 1 1 Install both top and bottom centre fasteners to the wall 172mm 6 apart 2 Slide the monitor onto the fasteners Option 2 1 Fix the four fasteners through each mounting hole in each corner of the case If mounting on a support or bar 1 Select a suitable location that is less than 2 meters from your tank and less than 1 5 meters from an electrical mains outlet NOTE Avoid placing the Monitor where it can be damaged by nutrient salts 2 Fix each of the cable ties provided through the small mounting holes in the top of the case and wrap around the support bar and secure STEP 2 In
9. e see page 13 low Temperature of probe and Wait 5 10 minutes for conductivity solution different temperature probe to reach solution temperature Temperature Temperature of probe different Wait 5 10 minutes for probe to reach solution reading inaccurate to solution temperature temperature pH reading inaccurate Contaminated probe Clean pH probe see page 13 Replace probe if in doubt Wait longer for reading to stabilize before calibrating Using factory default calibration Calibrate pH probe see page 8 Calibration old Calibrate pH probe see page 8 Display shows ERR during calibration An attempt was made to calibrate with pH 4 0 or pH 10 0 calibration solution more than one hour after calibration with the pH7 0 solution Calibrate to pH 7 0 again then do pH 4 0 pH 10 0 calibration within one hour Old or contaminated solutions used for calibration Use fresh calibration solutions Dirty or contaminated probe Clean probe see page 13 pH Probe tip been allowed to dry Hydrate pH probe see page 5 Probe damaged or old Replace pH Probe No Display Mains not switched on Switch mains power on Power adaptor not plugged into the monitor Plug power adaptor into the base of the monitor labeled Power Inlet A display shows or ur Over range value Under range value EC and pH cannot be determined as temperature range is ov
10. er under see technical specification range page 14 Check all equipment for faults Check probes for signs of damage Test pH probe in calibration solutions and conductivity temperature probe in a known conductivity standard solution to eliminate these as a cause of this problem Check solution tank reservoir for problems Bluelab Corporation Limited 14 Version1 180809_bl Bluelab Guardian Monitor Technical Specifications pH Conductivity Temperature 0 0 5 0 EC 0 50 CF 0 2500 TDS 0 50 C R 0 0 14 0 pH anes p EC x 500 32 122 F 0 3500 ppm EC x 700 0 1 EC 1 CF 1 C Resolution 0 1 pH 50 TDS 1 F 70 ppm 0 1 EC 1 Accuracy 0 1 pH 1 CF 41 be at 25 C 77 F 50 TDS 2 F 70 ppm Yes if conductivity Temperature ee probe is in same solution Yes Not applicable Compensation as pH probe Operating Environment 0 50 C 32 122 F Input 100 240 Vac 50 60Hz 5 VA Output 5Vdc 1Amp P S OWET OTK 4 interchangeable plug types USA Euro UK NZ AUS Calibration Two point pH 7 0 amp Not required Not required pH 4 0 or pH 10 0 factory calibrated factory calibrated Other Features Silent visual alarm adjustable display brightness water resistant non volatile memory over and under range indicators Contact Details Bluelab Corporation Limited 43 Burrows St Tauranga 3112 New Zealand Ph 64 7 578 0849 Fax 64 7 5
11. ess and hold the pH cal button for a few seconds until PH CAL appears in the windows then release the pH cal button The 7 LED will glow green All three windows will return to monitoring mode with all current values being displayed If ERR is displayed see the troubleshooting guide on page 15 Rinse the pH Probe in fresh water by gently stirring Place the probe tip into the pH 4 0 or pH 10 0 solution and wait for the reading in the pH window to stabilise Press and hold the pH cal button for a few seconds until PH CAL appears in the windows then release the pH cal button The 4 10 LED will glow green All three windows will return to monitoring mode with all current values being displayed If ERR is displayed see the troubleshooting guide on page 15 pH Calibration LEDs The LEDs next to the pH window will let you know the status of calibration See the table at right NOTE The pH probe and hence calibration will eventually fail due to Contamination and age of pH Probe pH Probe used to measure solutions at temperatures above 50 C 122 F or below 0 C 32 F pH probe exposed to aggressive chemicals Internal damage to the pH probe from rough treatment Damage to the cable of the pH probe from rough treatment Probe repeatedly drying out Moisture getting inside the BNC connector on the pH probe cable Bluelab Corporation Limited 9 Bluelab Guardian Monitor Using factory default calibration values Bo
12. nput pH probe BNC connector Bluelab Corporation Limited 2 Version1 180809_bl Bluelab Guardian Monitor Table of contents What s in the box IMPORTANT pH Probe Care Step 1 Mounting the Monitor Step 2 Install correct plug adaptor Step 3 Connect power adaptor and pH probe Step 4 Power up Step 5 Select the desired conductivity unit Step 6 Select the desired temperature unit Step 7 Select the desired display brightness level of LED displays Step 8 pH calibration pH Calibration LEDs Step 9 Placement of probes Step 10 Set alarm Maintenance Conductivity temperature probe cleaning Cleaning the pH probe Troubleshooting Guide Technical Specifications Bluelab Corporation Limited 3 Page 8 amp 9 10 10 11 amp 12 12 amp 13 13 14 15 Version1 180809_bl What s in the box Bluelab Guardian Monitor Please verify the box contents from the information below 1 Bluelab Guardian Monitor 8 2 Bluelab pH Probe with wetting cap 9 3 Conductivity temperature probe 10 4 pH probe holder with suction cup 11 5 5V DC Power Supply 12 6 North American plug adaptor 7 NZ Australian plug adaptor 13 European plug adaptor UK plug adaptor 4 x mounting fasteners 2 x cable ties pH 4 0 amp pH 7 0 single use calibration solution sachets Instructions and Guarantees PLEASE FOLLOW THE MANUAL STEP BY STEP BEFORE FIRST USE BEGINS Bluelab Corp
13. oration Limited 4 Version1 180809_bl Bluelab Guardian Monitor IMPORTANT pH Probe Care The pH Probe is the only part of the Guardian Monitor that should ever require replacing pH Probes DO NOT last forever They age through normal use and will eventually fail The life time of a pH probe depends on the environment it is used in and the way that it is treated To ensure you receive a long life from your pH probe please ensure you follow the guide below pH probes contain glass and are therefore FRAGILE With good care they will give a long service life pH probe holder suction cup Glass stem inside plastic barrel a Glass bulb BNC connector Wetting cap ae DO NOT allow the probe tip to dry IF IT DRIES IT DIES DO NOT bend the probe this will break its internal glass stem DO NOT knock the probe this will break its internal glass stem or external glass bulb DO NOT plunge a cold pH probe into a hot liquid sudden temperature changes can crack the glass and permanently damage the probe DO NOT immerse in oils proteins or suspended solids that will leave a coating on the glass bulb DO NOT kink or bend the lead sharply DO NOT attempt to lengthen the lead on the probe DO NOT wet the BNC connector at the end of the lead Preparing the pH probe for use Remove the wetting cap by gently sliding twisting the cap off without bending the pH probe Store the wetting cap in a safe place When storing the pH Prob
14. rub place one or two drops onto the probe face and using a finger or Bluelab chamois rub firmly and vigorously to clean the probe face Check that water forms an even film across the surface of the probe If beading of water is present clean again Beading indicates the presence of oil on the probe surface Refit the shroud and test in 27 7CF 2 77EC solution as set out below TO TEST Please use the following standard solutions when testing Bluelab solutions are recommended EC TDS Ppm EC x 500 EC x 700 27 7 2 77 1385 ppm 1940 ppm 1 Place a small amount of the correct standard solution into a clean container 2 Place the conductivity temperature probe into Bluelab Corporation Limited the solution ensuring that it is adequately submerged 12 Bluelab Guardian Monitor 5 i IA 4 eo Clean Contaminated Oily beading smooth film uneven film visible To test Version1 180809_bl 3 Wait until the conductivity reading stabilises The conductivity reading should be within 1 CF 0 1 EC 50 TDS or 70 ppm of the values in the table above If the reading is lower than 2 77 EC 1 Ensure that the 2 77 EC standard solution is fresh and uncontaminated and of a qualified brand if you are unsure use new solution NEVER add water to solutions 2 Wait 1 2 minutes for the probe to reach the solution temperature In extreme temperatures 5 10 minutes may be necessary NOTE Probes
15. stall correct plug adaptor 1 Select the appropriate mains plug adaptor for your country 2 Connect the plug adaptor to the power supply STEP 3 Connect power adaptor and pH Probe 1 Connect power adaptor into base of monitor where Power Input is labelled and plug adaptor into mains power supply 2 Connect the pH Probe to the monitor STEP 4 Power up 1 Switch on power adaptor at the mains 2 When power is applied the Guardian will complete a display test sequence Bluelab Corporation Limited 6 Bluelab Guardian Monitor Option 1 Mounting keyholes Option 2 Mounting holes top and bottom top and bottom Cable ties fixed through small mounting holes around a support or bar Inserting Version1 180809_bl STEP 5 Select the desired conductivity unit Conductivity readings can be displayed in EC CF TDS or ppm700 The selected unit is indicated by one of the 3 LEDs next to the Conductivity window When the EC CF LED is on the monitor is displaying conductivity in units of EC or CF If there is a decimal point present in the conductivity display the units are EC If there is no decimal point the units are CF To change the units to be displayed 1 Press and hold the conductivity units button and after 3 seconds it will change to the next unit indicated by the glowing LED Release 3 Repeat step 1 and 2 until the desired unit is selected STEP 6 Select the desired
16. th LEDs off pH 7 calibrated OK Using factory default for pH 4 10 pH 7 amp pH 4 or pH 10 calibrated OK 30 days passed since last full calibration calibration due If 7 is flashing and 4 10 is off calibration is also required as 4 10 was never calibrated Version1 180809_bl STEP 9 Placement of probes Both the pH and conductivity temperature probes require submersion in the liquid for measurement 1 Fit the optional pH probe holder to the stem of the pH probe using a gentle twisting motion 2 Place the pH Probe into the reservoir and push the suction cup onto the side of the reservoir but far enough down so the probe tip is in the solution The holder prevents damage to the pH probe from banging onto the side of the reservoir with movement of the solution 3 Place the conductivity probe into the reservoir NOTE Do not pour concentrated nutrient solution or pH adjuster directly onto probes when in the reservoir STEP 10 Set Alarms optional The alarm function warns you when the solution deviates from the desired levels you have chosen for each measurement When an alarm condition is present the display of the affected measurement will flash If the measurement changes back to within the limits you have chosen the flashing will stop There are two ways to set the alarm quick set or Detailed Alarm Quick set This allows you to quickly set the alarm HIGH and alarm
17. that read low generally only require cleaning 3 Ifthe reading remains higher than 2 9 EC after testing all of the above check solution has not evaporated during storage Cleaning the pH Probe To ensure accurate pH readings Bluelab recommend that the pH Probe is rinsed in clean fresh water before replacing the wetting cap and that it is cleaned when required by following the instructions below 1 Rinse pH probe tip under fresh water 2 Filla small container with clean water and add a small amount of 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 the detergent mixture 4 ONLY if the probe tip requires removal of heavy contamination gently brush around the glassware with a few drops of mild detergent dishwashing liquid and a soft toothbrush DO NOT pull out or touch the wick 5 Rinse well under fresh running water to remove all traces of the detergent mixture 6 Recalibrate the pH probe See the pH calibration section on page 8 or place wetting cap back onto probe tip Bluelab Corporation Limited 13 Bluelab Guardian Monitor Version1 180809_bl Troubleshooting Guide Trouble Possible reason Bluelab Guardian Monitor Possible solution Nutrient reading Contaminated probe Clean prob

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