KH keeper - Manual
Table of contents
I. Composition of the set
II. Assembly of the device
III. Adding the device to Smart Reef
IV. Preparing and checking the concentration of reagent
V. Assembly and disassembly of the glass beaker (KH keeper).
VI. Assembly and disassembly of the glass beaker (KH keeper Plus).
VII. Calibration of the device
VIII. Setting the schedule
IX. Device functions
X. States of the device
XI. Error indications
XII. Automatic actions
XIII. Cleaning and maintenance
XIV. Resetting the device
XV. Technical data and warnings
XVI. Terms and warranty
Read the entire manual very carefully before setting up and using the device. There may be slight differences in content between what is presented on the screen of the device and the descriptions in the manual.
I. Set contents
(Depending on the date of manufacture and model of the device, the contents may vary slightly)
KH keeper device
Filter holder A
Filter holder B
Electronic scale
Power supply with interchangeable adapters
1/3 mm hose with plastic tube for taking reagent
Hose 2/5 mm for water intake
Hose 2/5 mm for waste discharge
Spare glass tube
Calibration liquid pH 7
Calibration liquid pH 4
Ready-to-use reagent designed for use in the KH keeper (some versions may add reagent concentrate which needs to be prepared before use)
Screws to connect the filter holders
Caps for connecting the filter holders
Screw for mounting the filter
Mixing pill
Magnet used to reset the device
II. Installation of the device
Connect the two parts of the filter holder together using the supplied screws and nuts. Mount the filter with the hose in the appropriate place and then place the entire holder with the hose so that the filter is below the surface of the water.
Connect the appropriate hoses to the dedicated connectors on the device.
Pour the finished reagent into the target container you will use.
The reagent container should be at a height of no more than 20 cm relative to the device.
Check whether the reagent from the kit is ready to use, whether it is a concentrate dedicated to your own preparation. (For instructions on how to prepare the reagent from concentrate, see later)
Mount the device in the target place where it will be used. The device can stand freely on a flat surface or can be suspended by 2 screws thanks to holes in the back of the case. (screws not included)
After the device is installed and calibrated, do not move it. If the device is relocated, it should be recalibrated.
Connect the power supply to the device
Using the appropriate adapter, connect the device to electricity.
III. Adding a device to Smart Reef
IV. Preparation and check the concentration of reagent
Before proceeding further, make sure that the reagent you have is ready to use or it is a concentrate designed to prepare the reagent by hand.
If you do not have a dedicated reagent, the measurement will not be possible and the result will be incorrect.
If you have a reagent ready to use then you do not need to prepare it for use.
If you have a concentrate, it needs to be diluted in RO water in a ratio of 1 to 9.
This means that the preparation of 1 liter of ready-to-use solution for measurements requires mixing 100 ml of condensed reagent with 900 ml of RO water.
Below is a table with values to help you prepare the reagent correctly.
For proper operation and measurement of KH by the KH keeper it is necessary that the reagent is fed into the vial in the correct amount and concentration. The correctness of the reagent concentration can be checked with the Reef Factory KH Smart test kit or the Salifert KH/Alk drop test.
Checking the correctness of the concentration of the reagent for the KH keeper, using KH Smart test kit and Salifert KH/Alk drop tests.
You can find all the instructions on how to check the concentration of the reagent for KH keeper in the link below.
Checking the correct concentration of reagent for KH keeper
V. Assembly and disassembly of the glass beaker (KH keeper).
If you need to clean the device or remove the glass beaker, follow the instructions below:
Gently slide the pH probe out of the plastic holder.
Slide out the tubes located on the right and left side of the beaker. Be careful not to damage them in the process.
Gently slide out the glass beaker, (being careful not to lose the mixing pill, which is located sic in the vial).
Remember to leave the tie of plastic located under the beaker. It keeps the beaker from moving and the plastic tubing from reaching low enough.
Mounting the beaker back, follow the instructions given above in reverse order.
Putting the probe on, slide it into the slot in the holder, lower it as low as possible and press it down with the rubber cap underneath. Try to keep the probe as close to the vertical position as possible.
VI. Installation and removal of the glass beaker (KH keeper Plus).
If you need to clean the device or remove the glass beaker, follow the instructions below.
Slide up the tubes responsible for emptying and filling the beaker (glass tubes on the left and right sides of the vial), and the red needle responsible for feeding the reagent.
Gently slide the pH probe out of the holder towards you and then upwards.
Remove the beaker being careful not to lose the magnetic mixer that is in the vial in the process.
Mounting the beaker back, follow the instructions given above in reverse order.
VII. Calibration of the device
The device should be calibrated at the target location where it will take measurements. Place it in the target location before calibration.
To calibrate the device must be added to your Smart Reef account.
The device will guide you through the first calibration step by step.
The first calibration will consist of 3 components:
Probe calibration
Calibration of the reagent pump
Calibration of the aquarium pump
PROBE CALIBRATION
Gently wipe the end of the probe with a paper towel and dip the end of the probe into the pH 4 calibration solution.
If this is your first calibration, remember to take off the tip that protects the probe from drying out. (Don't throw it away!, it will come in handy to protect the probe if the device is not used for a long time or if you send the device to the service center.
Calibration liquids during calibration must have a temperature of 25 degrees. Before using them, make sure the liquid is at this temperature and will not change during calibration.
After proceeding further, a countdown of 5 minutes will begin. During this time, the submerged probe will calibrate itself.
After 5 minutes, the probe will be calibrated at pH 4.
If a calibration error appears at this stage, then make sure you use the right liquid and that it is exactly 25 degrees.
Then repeat the calibration.
Remove the probe from the pH 4 solution and wipe it gently with a paper towel.
Dip it into the pH 7 calibration liquid and proceed.
Inserting a wet probe into the solution may risk diluting or contaminating the calibration liquid.
Calibration liquids during calibration must have a temperature of 25 degrees. Before using them, make sure the liquid is at this temperature and will not change during calibration.
After proceeding further, a countdown of 5 minutes will begin. During this time, the submerged probe will calibrate itself.
After 5 minutes, the probe has been calibrated.
Dry it from any residual calibration liquid and set it aside in a safe place. (You can use a tip to prevent it from drying out).
If a calibration error appeared at this stage, then make sure you use the right liquid and that it is exactly 25 degrees.
Then repeat the calibration.
REAGENT PUMP CALIBRATION
Remove the glass beaker from the device and set it aside. It will be needed for pump calibration.
Remove the glass beaker from the device and set it aside. It will be needed for pump calibration.
Prepare the reagent and enter the capacity of the container of reagent that will be used.
You can use a ready-made mixture or your own mixture made from concentrate.
You can find detailed information about the reagent, how to prepare it and check the correct concentration in Chapter IV of this manual or by pressing the “How to prepare the reagent” button.
Connect one end of the hose from the reagent to the corresponding connector on the device, and put the other end into the reagent container.
If the hose was connected earlier then proceed further
Prepare an empty beaker and a balance from the kit.
Place the empty beaker under the reagent needle.
Moving on, the reagent circuit will slowly begin to fill.
Repeat this step until reagent starts pouring from the needle.
If the circuit has been filled then pour out the contents of the beaker and drain it.
Put the empty beaker on the scale and then enter the resulting weight in the application.
Remember to tare the empty scale before each measurement to guarantee the accuracy of the result.
At this stage, the calibration of the pump is happening
Put the empty vial under the reagent needle again.
Moving on, the pump will start pumping reagent into the vial for 60 seconds.
Note whether all the reagent from the needle lands in the vial.
After 60 seconds and proceeding, weigh the vial of reagent on the scale that was previously stationed and enter the result obtained in the application.
Remember to tare the empty scale before each measurement to guarantee the accuracy of the result.
Pour out the contents of the vial.
Put the empty and dry beaker on the scale and then enter the resulting weight in the app.
Remember to tare the empty scale before each measurement to guarantee the accuracy of the result.
At this stage an accuracy test is performed to make sure that the calibration was successful.
Place the empty vial under the reagent needle again.
The pump will start pumping reagent into the vial. The moment the pump stops proceed.
After pouring the reagent and proceeding, weigh the vial of reagent on the scale that was previously used and enter the result obtained in the application
Remember to tare the empty scale before each measurement to guarantee the accuracy of the result.
The reagent pump was calibrated correctly.
If an error occurred at this stage, then make sure that the previous steps were performed correctly and repeat the process of calibrating the pump.
AQUARIUM PUMP CALIBRATION
Connect the hose from the aquarium to the corresponding connector on the device, and immerse the filter end in water.
If the hose was connected earlier then proceed further
Connect the waste hose to the appropriate connector on the device, and insert the end of the hose into the waste container.
If you want the device to inform you about the filling status of the container then enter its volume in the app.
The waste after the measurement is safe for the aquarium and can be returned to it using a special option in the settings or from the waste hose.
Put the empty beaker under the aquarium water tube.
Moving on, the aquarium water circuit will slowly begin to fill.
Repeat this step until water starts pouring from the tube.
If the circuit has been filled then pour out the contents of the beaker and drain it.
Put the empty beaker on the scale and then enter the resulting weight in the application.
Remember to tare the empty scale before each measurement to guarantee the accuracy of the result.
At this stage, the calibration of the aquarium water pump is happening.
Place the empty vial under the aquarium water tube.
Moving on, the pump will start pumping water into the vial for 60 seconds.
Note whether all the water from the tube lands in the vial.
After 60 seconds and proceeding, weigh the vial of water on the scale that was previously stationed and enter the result obtained in the application
Remember to tare the empty scale before each measurement to guarantee the accuracy of the result.
Wylej zawartość naczynia.
Pustą i suchą zlewkę postaw na wadzę i następnie wpisz otrzymaną wagę w aplikacji.
Pamiętaj żeby przed każdym pomiarem wytarować pustą wagę aby zagwarantować poprawność wyniku.
At this stage an accuracy test is performed to make sure that the calibration was successful.
Place the empty vial again under the aquarium water tube.
The pump will start pumping water into the vial. The moment the pump stops proceed.
After pouring the water and proceeding, weigh the vial of water on the scale that was previously used and enter the result obtained in the application.
Remember to tare the empty scale before each measurement to guarantee the accuracy of the result.
The aquarium water pump was calibrated correctly.
If an error occurred at this stage, then make sure that the previous steps were performed correctly and repeat the process of calibrating the pump.
At this stage you will help set the measurement range after which the kH keeper will send a notification.
Congratulations. You have successfully configured the kH keeper.
You can choose to have the device take a measurement or terminate without a measurement.
VIII. Setting the schedule
You can set the schedule and measurement time in the “Settings” tab of the device by pressing the “Schedule” button.
There you can select the interval option. Then the device will take a measurement every specified number of hours.
Or add your own measurement times at specific times.
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IX. Functions of the device
The center of the device's screen displays the KH value measured during the last measurement and the difference between the preceding measurement.
Below the result is the pH value during the measurement.
The pH value shown by the device is not the pH in the aquarium due to a different method of measurement. The KH keeper measures the standing water in the vial to which the reagent is added.
Below is the average change in KH over the last 24 hours and the date of the next measurement.
The bottom part of the screen shows information articles.
In the statistics tab we can see such information as:
how much water has been used for measurement
Filling of the waste water container
The amount of reagent that has been
These values can be edited or reset with the buttons next to them.
In the history tab we can see the results and the time in which the measurements were taken in the past. (the data is visible since the last reset of the device)
You can choose to show the history as a graph or as data.
Selecting data will show you a list with all measurements. Each measurement has a date, time and possible measurement error code associated with it.
On the graph, it is possible to customize the period to be displayed. The graph shows the measurements and calibrations that were performed. (The data on the graph appears only when the device had an internet connection at the time of the measurement)
The settings tab contains the following:
Buttons for emptying the vial
Option to turn off the lighting in the device
A window where you can set the measurement range. If the result is outside this range, the device will send an alert.
Button to restore factory settings
“Calibration” button:
Here you can calibrate the probe or pumps in the device and set a calibration reminder.
Under the button measurement “Measurement”:
Button to perform a manual test.
Window for value matching (used from to match the result shown by kH keeper to another result).
Window for re-measurement value. (If the difference between the last measurement and the latest measurement is greater than the set value then the device will re-measure).
Return water to the aquarium - The device can remove the water to the waste container after the measurement, or return it directly to the aquarium with the same pump as it took it.
Mixing force during measurement
Schedule button:
You can set an interval for the device to take measurements every few hours or set custom times.
In the support tab you will find the software versions of the device, the serial number and a button for the user manual.
X. Device states
The device, depending on its operation, can be in one of 4 possible states which is signaled by an Led lamp located inside it.
Led signaling:
White - the device has not been calibrated
Blue - the device is in the process of measurement
Green - the result of the last measurement was within the set range
Red - the result of the last one was outside the set range
XI. Error Signals
If an error or measurement irregularity is detected, the device will inform you by projecting an email message or a notification in the mobile app. Below is sic a summary of the messages that can be sent by the kH keeper device.
KH value is too low - the measured kH value is below the specified value.
KH value is too high - the measured kH value is higher than the specified value.
KH value is below the measurement range - the measured KH value is below 5.00 dKH.
KH value is above the measuring range - the measured KH value is higher than 15.00 dKH.
Reagent is running out - the amount of remaining reagent is at a low level and is enough for about 5 days. Refill the reagent and give the amount of reagent found in the tank after refilling.
Lack of reagent - refill the reagent and give the amount of reagent found in the tank after refilling. If necessary, refill the circuit.
pH probe measurement error - the pH probe takes incorrect measurements. Check the probe connection, then calibrate it with pH4 and pH7 calibration solutions.
Abrupt change in KH level - the change in KH level between measurements is too abrupt (the difference is greater than the acceptable change between two consecutive measurements)
XII. Automatic actions
Type | Device | Trigger (KH keeper) | Action |
|---|---|---|---|
Dosing pumps |
|
|
|
Power Switcher |
|
|
|
Dosing pumps |
|
|
|
How to configure a sample automatic action step by step.
Before configuring an automatic action, make sure that both the KH keeper and the device you want to connect it to with the action are updated to the latest software version.
To configure an automatic action, the devices for which you want to configure actions must be assigned to the same aquarium.
NOTE: A stable and strong connection of the devices to the network is required for the correct execution of the automatic actions. If your network does not allow a stable connection the actions may not be executed correctly!
NOTE: The automatic actions must be configured in a way that is safe for the aquarium, so that in case of disconnection from the network, the health and life of the animals in the aquarium is not endangered.
Once the previous conditions are met, we can configure a sample action.
The action tab is located in the head bar at the bottom after entering a particular aquarium.
When you enter the “Actions” tab, a list of current actions that you have created for this aquarium appears.
To add an action, press “Add action”.
A new window for creating actions will appear.
In the first field, we select the device that is to trigger the action and when this action is to be triggered.
Later, we select another device and the task it is to perform when the predetermined condition is met.
After accepting the action you have entered, you have the option to add another action or save the currently entered action.
After saving, the added actions will appear in the list of actions.
XIII. Cleaning and maintenance
The device requires maintenance and cleaning for proper operation.
Dirt or organic materials such as algae may accumulate in the beaker and on the probe during use. In the event of such a buildup, the beaker should be cleaned under running water, and the probe should be cleaned gently with a paper towel.
Avoid contact between RO water and soda. This can cause damage to it.
During use, the hoses can also become dirty inside. In this case, they should be replaced with new ones.
When the device is unused for a long period of time and is not connected to the aquarium, or it will be shipped you need to protect it. All circuits should be emptied so that there is no liquid in any hose. Then the most important aspect is to protect the probe from drying out. If you kept the probe cover in which it was secured earlier you can use it
Putting the probe cover on, pour salt water into it so that it does not remain dry. It is best if the brine is fresh without biology.
If you don't have one, use a small bag that you moisten with water inside. Put the tip of the probe into it so that it remains wet, and tightly secure the bag with soda tape or a rubber band.
Do not pour water into the bag. This can risk water leaking out and damaging it in transit.
XIV. Resetting the device
If the device doesn't work properly or you want to reconfigure it or can't connect to it, you can restore it to factory settings by applying a magnet to the case in the designated place.
XV. Technical data and warnings
TECHNICAL SPECIFICATION
Device Name: | KH keeper Plus |
Device model: | RFKH03 |
Operating temp/humidity: | 10-50°C / 0-99 % |
Power consumption: | 0,5 - 5W |
Power supply: | 100V-230VAC 50-60Hz (dołączony zasilacz AC-DC) |
Radio protocol: | Wi-Fi (802x11 b/g/n) 2400.0-2483,5MHz +20dBm |
Dimensions [mm] (W x D x H): | 140 x 100 x 210 |
This device contains an RF Module:
| ESP32F |
| 2AHMR-ESP12F |
Important safety information
Read these instructions carefully before installing and operating the product.
The manufacturer is not responsible for any loss or damage resulting from failure to follow the instructions.
Keep this manual in a safe place for future reference.
This product is not a toy. Keep away from children.
Urządzenia posiadają certyfikat CE
IMPORTANT NOTICE! The device is not completely waterproof. Avoid immersion, splashing and high humidity. Exposure of the device to these factors may cause permanent damage.
IMPORTANT INFORMATION! The device works under electric power - there is a risk of electric shock.
IMPORTANT INFORMATION! PACKAGING
The device has been protected for transport by packaging. After unpacking the device, please remove the packaging elements in a way that does not endanger the environment. All materials used for packaging are harmless to the environment and 100% recyclable. Keep packaging materials (polyethylene bags, foam, bundle wires, etc.) away from children when unpacking. There is a risk of swallowing, choking and suffocation.
IMPORTANT INFORMATION! DECOMMISSIONING
The device is labeled in accordance with the European Directive 2012/19/EU and the Polish Law on Waste Electrical and Electronic Equipment with the symbol of a crossed-out waste container. Such marking informs that this equipment, after its useful life, must not be placed together with other household waste. The user is obliged to give it to waste electrical and electronic equipment collectors. Collection operators, including local collection points, stores and municipal units, shall establish an appropriate system for handing over this equipment. Proper handling of waste electrical and electronic equipment, contributes to avoiding harmful consequences for human health and the environment, resulting from the presence of hazardous components and improper storage and processing of such equipment.
The manufacturer of the equipment described in this manual is:
Reef Factory Sp. z o.o.
94 Bydgoska St.
86-032 Niemcz
Poland
Manufacturer's website: http://www.reeffactory.com
The manufacturer declares that the offered products comply with the following standards:
RoHS 2011/65/EU,
RoHS 2015/863,
RED 2014/53/EU.
Reef Factory hereby declares that the equipment complies with Directive 2014/53/EU.
The full text of the EU Declaration of Conformity is available at the following web address: https://download.reeffactory.com/instructions/khkeeper/KhKeeperCE.pdf
The devices manufactured by Reef Factory are intended only for home use or stores operating in the aquarium industry, they are not dedicated to industrial applications.
The devices are adapted for dispensing liquids that are not hazardous substances, such as corrosive substances, acids of high concentration or flammable substances. If you have any doubts whether a substance can be dosed with our devices, please contact us.
FCC Compliance Statement:
This equipment complies with Part 15 of the FCC Rules. Its operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by Reef Factory may void the user's right to use the RF module and/or the product containing the RF module. The user should maintain a distance of 20 cm (8 inches) from the product to ensure compliance with FCC regulations.
XVI. Conditions and warranty
Reef Factory Sp. z o.o. does not guarantee the uninterrupted or error-free operation of this product. This warranty covers only technical hardware problems during the warranty period and under normal use conditions.
The devices manufactured by Reef Factory are covered by the warranty for the period of:
24 months for individual and business customers using consumer products.
12 months for a business customer using demonstration products.A 6-month warranty is provided for accessories and spare parts for devices.
The proof of the warranty for the product is the bill or purchase invoice which clearly shows the date of purchase and the name of the device.
Technical defects of the product revealed during the warranty period will be removed free of charge within the shortest possible time, not exceeding 14 days from the date of delivery of the device to the Authorized Service Center.
The User has the right to replace the product by the Guarantor with a new one, free from defects, if:
five repairs have been made during the warranty period, requiring replacement of components and the product is still defective,
The Authorized Service Center stated in writing that the defect could not be removed.
The condition for a warranty repair is:
delivery of the product in the original factory packaging or another protecting the device during transport to the Authorized Service Center.
presentation of proof of purchase,
description of the fault that occurs in the device.
The warranty does not cover:
normal wear and tear of materials and consumables (e.g. consumables such as probes, sensors, pump heads, hoses, etc.),
mechanical damage and defects caused by them,
damage as a result of improper use or storage of the product not by the user's manual,
damage resulting from unauthorized repairs and alterations made by the Buyer or unauthorized persons,
damage resulting from natural wear, such as scratches, dirt, abrasions, abrasions of inscriptions, etc.
The employees of the Authorized Service Center are authorized to assess the causes of product defects.
The repair period may be extended in the event of disruptions caused by force majeure, such as natural disasters, social unrest, etc.
Warranty entitlements do not include the buyer's right to demand reimbursement of lost profits due to product defects.
The warranty period is extended by the period when the device is in service.
10. In matters not covered by the terms of this warranty, the relevant provisions of the Civil Code shall apply.
11. The guarantee does not exclude, limit or suspend the rights of the buyer resulting from the provisions on the warranty for defects in the sold item.
12. The repaired or replaced product may contain new or refurbished components.
13. Please be advised that repair or replacement of the product involves significant risk of loss of data stored in a given product (especially related to its configuration and measurement history). Therefore, the Customer accepts that the data may be deleted when the product is repaired or replaced.
14. The Guarantor is not responsible for the lack of full compliance (compatibility) of the product with accessories or devices of other manufacturers used by the Customer. In particular, this applies to network devices, the configuration of which may limit the ability to connect and exchange data between the device and the server.
15. The customer delivers the device for repair to the Authorized Service Center at his own expense, and the service, after warranty repair, returns the device to the customer at its own expense.
16. The Authorized Service Center may repair/restore the device at the Customer's expense (post-warranty repair), however, the Customer must accept this cost before repairing it.
17. An Authorized Service Center may refuse to repair or replace a device that, after being tested under service conditions, does not show any defective features for the product in terms of its use (confirmation of the full efficiency of the device).
18. The guarantor shall not be liable for incidental or consequential damages caused by the breach of the warranty or conditions or any other legal theory, including but not limited to the loss of utility; loss of income; loss of actual and perceived profits (including loss of contract profits); loss of business; loss of opportunity; loss of enterprise value; loss of reputation.
19. The guarantor shall not be liable for direct or indirect damages caused as a result of a defect or failure of the device and for damages caused during the period of repair or replacement of the device related to the inability to use the device.
Extended Warranty Option:
Customers have the option to purchase an Extended Warranty for an additional 12-month period, extending the original warranty from 24 months to 36 months. This extended warranty applies only to consumer product versions and does not apply to demonstration models, accessories, or spare parts, which are covered by a 6-month warranty.
Purchase Period for Extended Warranty: The option to purchase the extended warranty is available only during the initial warranty period. It is not possible to purchase the extended warranty once the original warranty has expired.
Non-refundable Purchases: If the customer chooses to purchase the extended warranty after the original warranty period has expired, the purchase will be made at the customer’s own risk, and no refunds will be provided for such purchases.
The warranty period is counted from the date of purchase shown on the attached proof of purchase.