KH keeper - 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.

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)

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

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.

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).

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 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.

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.

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.

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).

REAGENT 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.

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.

Prepare an empty beaker and a scale 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.

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.

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.

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.

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

The reagent pump was calibrated correctly.

AQUARIUM PUMP CALIBRATION

Connect the hose from the aquarium to the corresponding connector on the device, and immerse the filter end in water.

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.

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.

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.

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

Wylej zawartość naczynia.

Pustą i suchą zlewkę postaw na wadzę i następnie wpisz otrzymaną wagę w aplikacji.

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.

The aquarium water pump was calibrated correctly.

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.

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.

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

Type

Device

Trigger

(KH keeper)

Action

Dosing pumps

Dosing pump
Dosing pump X3
Dosing pump X4
Dosing pump Large
Dosing pump Pro

Dosing Pump Pro X1
Dosing pump Pro X4

score below
score above
score between

additional dosage
skip part of the next dose

Power Switcher

Power switcher
Power switcher X4

score below
score above
score between
score within the range from to

turn on permanently
switch on for a specified time
switch off permanently
switch off for limited time
switch to periodic mode
switch to sequential mode

Dosing pumps

Base pump 3000
Base pump 5000
Base pump 8000
Base pump 10000
Base pump 13000

score below
score above
score between
score within the range from to

Set the flow rate to a certain value
Increase flow by value
Decrease flow rate by value

How to configure a sample automatic action step by step.

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.

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

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.

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:

Part number:	ESP32F
FCC ID:	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 Support

KH keeper - manual - EN

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