MELAG MELAtherm 10 Evolution DTA User manual

User Manual
MELAtherm® 10 Evolution
Washer-Disinfector
from software version 3.0.20
EN
Dear customer,
We thank you for your confidence demonstrated by the purchase of this MELAG product. As an owner-run and operated
family concern founded in 1951, we have a long history of successful specialization in hygiene products for practice-
based use. Our focus on innovation, quality and the highest standards of operational reliability has established MELAG
as the world’s leading manufacturer in the instrument treatment and hygiene field.
You, our customer are justified in your demand for the best products, quality and reliability. Providing “competence in
hygiene” and “Quality – made in Germany”, we guarantee that these demands will be met. Our certified quality man-
agement system is subject to close monitoring: one instrument to this end is our annual multi-day audit conducted in ac-
cordance with ENISO13485. This guarantees that all MELAG products are manufactured and tested in accordance with
strict quality criteria.
The MELAG management and team.

Contents
Contents
1 General guidelines ...............................................................................................................................................................6
Symbols used.......................................................................................................................................................................6
Formatting rules ...................................................................................................................................................................6
Disposal ...............................................................................................................................................................................6
2 Safety.....................................................................................................................................................................................7
3 Performance specifications ................................................................................................................................................9
Intended use ........................................................................................................................................................................9
User benefits ........................................................................................................................................................................9
Program sequence.............................................................................................................................................................10
Process agents ..................................................................................................................................................................11
4 Description of the device...................................................................................................................................................12
Scope of delivery................................................................................................................................................................12
Views of the device ............................................................................................................................................................12
Symbols on the device .......................................................................................................................................................14
Operating panel and acoustic signal ..................................................................................................................................16
Menu structure ...................................................................................................................................................................19
Water softening unit ...........................................................................................................................................................20
5 First steps ...........................................................................................................................................................................21
Setup and installation.........................................................................................................................................................21
Water supply ......................................................................................................................................................................21
Switching the device on and off .........................................................................................................................................22
Video tutorials ....................................................................................................................................................................22
MELAconnect App .............................................................................................................................................................23
Opening and closing the door ............................................................................................................................................23
Manual door emergency-opening ......................................................................................................................................24
Inserting the basis basket ..................................................................................................................................................24
Filling the regenerating salt ................................................................................................................................................25
Regenerating the water softening unit ...............................................................................................................................26
Metering process agents....................................................................................................................................................26
Holding process agents ready............................................................................................................................................27
Removing air from the metering system ............................................................................................................................29
6 Cleaning and disinfection..................................................................................................................................................30
Type of load .......................................................................................................................................................................30
Wet/dry storage..................................................................................................................................................................30
Preparation and pre-cleaning.............................................................................................................................................30
Arranging the load..............................................................................................................................................................31
Reprocessing hollow-body instruments .............................................................................................................................31
Reprocessing dental transmission instruments..................................................................................................................32
Reprocessing ophthalmological instruments......................................................................................................................33
Overview of programs ........................................................................................................................................................34
Selecting, starting and following the program ....................................................................................................................35
Manual program abort........................................................................................................................................................36
Authentication and batch approval.....................................................................................................................................37

Contents
Removing the load after program end................................................................................................................................41
7 Logging ...............................................................................................................................................................................42
Batch documentation .........................................................................................................................................................42
Output media......................................................................................................................................................................42
Outputting logs immediately and automatically..................................................................................................................44
Subsequent log output .......................................................................................................................................................45
Deleting the saved logs......................................................................................................................................................45
Determining the format for the program logs .....................................................................................................................46
Finding the logs..................................................................................................................................................................48
8 Settings ...............................................................................................................................................................................49
Settings menu ....................................................................................................................................................................49
Log settings........................................................................................................................................................................50
Setting the date and time ...................................................................................................................................................56
Setting the display brightness ............................................................................................................................................57
Setting the idle mode .........................................................................................................................................................58
Setting the volume of the signal tone .................................................................................................................................58
Setting the volume of the key tone.....................................................................................................................................59
Connectivity........................................................................................................................................................................59
Setting the language ..........................................................................................................................................................60
Setting the water supply.....................................................................................................................................................61
Setting the water hardness ................................................................................................................................................61
Administrative settings .......................................................................................................................................................62
9 Function tests.....................................................................................................................................................................68
Automatic and manual functional check.............................................................................................................................68
Measuring conductivity.......................................................................................................................................................68
10 Maintenance......................................................................................................................................................................69
Maintenance intervals ........................................................................................................................................................69
Regular checks and cleaning .............................................................................................................................................69
Cleaning on demand ..........................................................................................................................................................71
Avoiding staining ................................................................................................................................................................72
Changing the filter in the drying fan ...................................................................................................................................72
Maintenance.......................................................................................................................................................................73
(Process) Validation ...........................................................................................................................................................74
11 Pause times ......................................................................................................................................................................75
Decommissioning...............................................................................................................................................................75
Transport within the practice ..............................................................................................................................................76
12 Malfunctions .....................................................................................................................................................................77
Displaying events in MELAconnect....................................................................................................................................78
General events...................................................................................................................................................................78
Warnings ............................................................................................................................................................................80
Malfunction messages .......................................................................................................................................................85

Contents
13 Technical data ..................................................................................................................................................................93
14 Accessories and spare parts ..........................................................................................................................................95
15 Documentation and approval..........................................................................................................................................96
Glossary .................................................................................................................................................................................97

1 General guidelines
6
1 General guidelines
Read this user manual carefully before commissioning the device. The user manual includes important
safety information. The functionality and value-retention of this device depends on the care accorded to it.
Store this user manual carefully and in close proximity to your device. It represents a component of the
product.
Should the user manual no longer be legible, damaged or lost, obtain a new copy from MELAG. State the
device type and your address in an e-mail.
The device type is specified on the type plate on the rear of the device.
Should the user manual no longer be legible, is damaged or has been lost, please obtain a new copy from
MELAG. State the device type and your postal address in an e-mail.
Symbols used
Symbol Explanation
Indicates a dangerous situation, which if not avoided, could entail slight to life-
threatening injuries.
Draws your attention to a situation, which if not avoided, could result in damage to the
instruments, the practice fittings or the device.
Draws your attention to important information.
Formatting rules
Example Explanation
see Chapter 2 Reference to another text section within this document.
Universal-
Program
Words or phrases appearing on the display of the device are marked as display text.
Disposal
MELAG devices are synonymous with high quality and a long life-span. When you eventually need to
decommission your MELAG device, we offer a special disposal service. Simply contact your stockist.
Dispose of accessories and consumption media which you no longer require in the appropriate manner.
Comply with all relevant disposal specification in terms of possibly contaminated waste.
The packaging protects the device against transport damage. The packaging materials have been selec-
ted for their environmentally-friendly disposability and can be recycled. Returning the packaging to the
material flow reduces the amount of waste and saves raw materials. Dispose of all non-required packaging
materials at the collection points of the dual system.
Dispose of waste from process agents in accordance with the specifications from the manufacturer of the
process agents. Information regarding this topic is provided in the safety data sheets or can be obtained
directly from the manufacturer of the process agents.

2 Safety
7
2 Safety
When operating the device, comply with the following safety instructions as well as those
contained in subsequent chapters. Use the device only for the purpose specified in these
instructions. Failure to comply with the safety instructions can result in injury and/or damage to
the device.
Qualified personnel
nThe instrument reprocessing using this washer-disinfector may only be carried out by competent per-
sonnel.
Set-up, installation and commissioning
nCheck the device after unpacking for any damage suffered during transport.
nThe device should only be set-up, installed and commissioned by MELAG authorized persons.
nThe connections for electrical provision and water supply and discharge must be set-up by trained per-
sonnel.
nUsing the optional electronic leak detector (water stop) minimizes the risk of water damage.
nThe device is not suitable for operation in explosive atmospheres.
nInstall and operate the device in a frost-free environment.
nThe device is conceived for use outside the patient area. The device should be located a minimum of
1.5m radius away from the treatment area.
nThe documentation media (computer, CF card reader etc.) must be placed in such a way that they
cannot come into contact with liquids.
nObserve all the information contained in the technical manual during commissioning.
Power cable and power plug
nComply with all legal requirements and locally-specified connection conditions.
nNever operate the device if the plug or power cable are damaged.
nThe power cable or plug should only be replaced by authorized technicians.
nNever damage or alter the power plug or cable.
nNever unplug by pulling on the power cable. Always take a grip on the plug.
nEnsure that the power cable does not become jammed in.
nNever lead the cable along a source of heat.
nNever fix the power cable with sharp objects.
nMELAtherm10Evolution DTA is disconnected from the mains via the on-site main switch.
MELAtherm10Evolution DTB disconnects from the mains by removing the mains plug from the
socket.
Daily operation
nOnly reprocess instruments designed by their manufacturer for automatic reprocessing in a washer-
disinfector. Comply with the instructions issued by the instrument manufacturer in accordance with
ENISO17664. It is especially important to comply with the specifications from the instrument manu-
facturer regarding cleaning instruments for the first time after purchasing new instruments.
nUse only original MELAG accessories or those from other suppliers authorized for use by MELAG.
nWhen using non-MELAG accessories for the mounting of instruments (especially hollow body instru-
ments) comply with the information from the manufacturer of the accessories.
nComply with the specifications of the national standards and directives pertaining to the reprocessing
of instruments, the instrument manufacturer’s reprocessing instructions and those from the AKI.

2 Safety
8
nThe fore ventilation slots may not be covered.
nNever operate the device unattended (e.g. overnight). Unsupervised operation of the device can result
in damage to the device or your facility and is performed at your own risk. In such a case, MELAG
does not accept any liability.
Process agents
nHandle all process agents with care. The cleaning agents, neutralizers and rinse aids contain irritants
and even caustic substances.
nComply with the safety instructions in the accompanying documentation of the process agents and
wear the prescribed protective equipment.
nIn the case of damage, every type of liquids (e.g. in the drawer, in the device floor trough or liquid
issued from the device) could potentially contain aggressive process agents.
Storage and transport
nAvoid frost or extreme heat during the transport and storage. If this cannot be ensured, unpack the
device and store it at room temperature for at least two hours before installation and commissioning.
nAvoid strong shocks/vibrations.
Maintenance
nMaintenance should only be performed by authorized technicians.
nMaintain the specified servicing intervals.
Malfunctions
nShould the device issue the same malfunction message repeatedly, turn off the device and if neces-
sary, inform your stockist.
nThe device may only be serviced by authorized technicians.
Notification requirement in the event of serious accidents in the European Economic Area
nPlease note that all serious accidents which occur in connection with the medical product (e.g. death
or serious deterioration in the state of health of a patient) which were presumably caused by the
product, must be reported to the manufacturer (MELAG) and the relevant authority of the member
state, in which the user and/or patient resides.

3 Performance specifications
9
3 Performance specifications
Intended use
The MELAtherm 10 Evolution DTA/MELAtherm 10 Evolution DTB is intended for use in a medical context
such as a clinic or medical and dental practices. ENISO15883- 1 and -2 defines it as a washer-disinfector
intended for reprocessing medical instruments prior to their re-use or a further reprocessing step such as
sterilization in a steam sterilizer. You can subject thermostable medical instruments (i.e. instruments which
are heat resistant to a temperature of 95°C) and invasive thermostable instruments to automatic repro-
cessing as long as they are suitable for this purpose and have been approved for such treatment by their
manufacturer. The cleaning is performed using water in combination with a process agent (e.g. MEtherm).
Subsequent disinfection is thermal disinfection. This device is not intended to be used in a patient environ-
ment.
This device is NOT suitable for the reprocessing of:
uThermo-unstable instruments e.g. flexible endoscopes
uLaboratory waste requiring disposal
uCrockery
uBedpans
User benefits
Universal use
The device both cleans and disinfects. The disinfection phase is conceived so as to reach an A0 value of
at least 3000. This kills vegetative bacteria, fungi and their spores and viruses (inc. HBV, HCV). This
means that the effective range AB is reached in accordance with the specifications of the Robert Koch
Institute.
Active drying
The device is equipped with active drying. An integrated drying fan dries the instruments from outside and
in after cleaning and disinfection. The HEPA filter guarantees drying with contamination and particle-free
air. The automatic reprocessing of hollow-body instruments is also possible. This protects the instruments
against corrosion. Manual subsequent drying is usually not necessary. The geometry of some hollow-body
instruments mean that they require additional drying.
Automatic sieve recognition
The device recognizes automatically before a program start whether the fine sieve has been inserted in
the base of the washing chamber. The fine sieve avoids a situation in which instrument components enter
the opening of the drain pump or the circulation pump during cleaning, thereby compromising the function
of the pumps, rinse arms and the injector rail.
Internal water softening
The device is equipped with an internal water softening unit. The water hardness of the local drinking
water is set on the device. The internal water softening unit then automatically adjusts itself to the most
suitable performance. This ensures best reprocessing results.
Monitoring the rotation speed of the rinse arms
The rotation speed of the rinse arms is subject to permanent monitoring during a program run. This
ensures that the cleaning process proceeds without hindrance and the rinse arms do not become blocked
e.g. by protruding instruments in the washing chamber.
Monitoring the rinsing pressure
The rinse pressure is monitored by a pressure sensor during a program run. This ensures an effective
cleaning performance. The device aborts a current program if too much foam is generated.

3 Performance specifications
10
Metering monitoring
The required amounts of cleaning agent and neutralizer are metered using a hose metering pump. A
measuring turbine performs flow monitoring. The rinse aid is metered using a hose pump subject to moni-
toring for rotation speed.
Drawer for process agents
The drawer for the process agents is located in the lower area of the device in which the cleaning agent,
neutralizer and rinse aid containers are stored.
Automatic conductivity measurement
If the device is supplied with DI water in the final rinse, the DI water fed in is subject to automatic internal
conductivity measurement.
Program sequence
The following program steps are indicated on the display during the program run. The program runs will be
significantly defined through the process-relevant parameters (VRP) specified in the technical manual.
Pre-cleaning
The water-soluble soiling will be rinsed roughly with cold water and removed from the device. This pre-
vents protein fixing from too high a water temperature; the soiling load of the washing liquor in the follow-
ing program steps will be reduced considerably. In Intensive-Program, this step is performed twice.
Cleaning
A new water volume is fed into the washing chamber and heated. When the metering temperature has
been reached, a mildly-alkaline or alkaline cleaning agent will be metered. Once the cleaning temperature
has been reached, the holding time begins, which ensures a reproducible cleaning effectiveness.
Neutralization
The cleaned instruments will be freed from alkali residue during neutralization. At the same time, this pre-
vents the development of acid-soluble deposits such as limescale and foreign corrosion. To this end, a
new water volume will be fed into the washing chamber, a citric acid or phosphoric acid-based neutralizer
will be metered and short circulation will be performed.
Intermediate rinsing
A new water volume is fed into the washing chamber and circulated cold. This rinses off the neutralizer
residue. In Ophthalmo-Program, this step is performed twice.
Disinfection
The disinfection is the same as the final rinse. The cleaned and rinsed instruments are subject to thermal
disinfection. A new water volume, preferably DI water is fed into the washing chamber and heated. Once
the metering temperature has been reached, a rinse aid will be metered in Quick-Program, Universal-
Program and Intensive-Program. Once the disinfection temperature has been reached, the holding time
begins, which ensures a reproducible disinfectant effect.
Drying
Active drying is effected by drawing ambient air through a class H13 HEPA filter and heating it. The instru-
ments are dried inside and out with hot, filtered air.
Displaying the batch counter
The display shows the batch number of the last program run and the total batch counter after every pro-
gram end or the end of a program abort.

3 Performance specifications
11
Process agents
Comply with the following provisions pertaining to the use of the process agents:
uUse only suitable process agents. The use of unsuitable process agents can impair the reprocessing
results and the damage materials (stain accretion).
uMELAG recommends using MEtherm process agents. The suitability of the MEtherm process agents
for use in MELAtherm has been proven in comprehensive cleaning effectiveness and material-
compatibility tests.
uOther process agents must not be used if their performance and safety for use with the MELAtherm
have not been conformed by the manufacturer of the process agents.
uPlease address all queries relating to the compatibility of process agents with the instruments to the
instrument manufacturer.
uEvery change of a process agent in a validated device necessitates revalidation. Comply with all
national regulations.
Pre-set metering concentration
The pre-set metering concentrations have been harmonized to MEtherm.
Program Cleaning agent Neutralizer Rinse aid
Universal-Program 6 ml/l 1.5 ml/l 0.3 ml/l
Quick-Program 6 ml/l 1.5 ml/l 0.3 ml/l
Intensive-Program 10 ml/l 1.5 ml/l 0.3 ml/l
Ophthalmo-Program 6 ml/l 1.5 ml/l --------
NOTICE
When using process agents from other manufacturers, it may be necessary to adjust the
metering concentration. Only trained and authorized service technicians are permitted to
change the metering concentration.

4 Description of the device
12
4 Description of the device
Scope of delivery
Please check the scope of delivery before setting up and connecting the device.
Standard scope of delivery
▪ MELAtherm 10 Evolution Washer-Disinfector
▪ User manual
▪ Technical manual
▪ Record of installation and setup
▪ Manufacturer's inspection report and declaration of conformity
▪ Warranty certificate
▪ Instructions for the use and care of the accessories
▪ MELAflash CF card for documentation purposes
▪ Filling funnel for the regenerating salt
▪ Starter package of regenerating salt
▪ Hose bend for outflow
▪ Ø 16-27/9 clamp for outlet hose
Views of the device
10
12
3
4
5
6
7
8
9
Fig.1: View from front
1 Operating and display panel
2 Cover plate (optional)
3 Power switch
4 Cover cap for CF card slot and
Ethernet data connection (for
service technician)
5 Door handle
6 Hinged door, opens forwards
7 Ventilation slots for air egress
8 Grip for the drawer
9 Drawer for process agents
10 Device foot

4 Description of the device
13
11
12
13
14
Fig.2: Cover cap slot open
11 Slot
12 LED
13 Ejection button
14 Ethernet data connection
20
19
18
17
16
15
Fig.3: View from rear
15 Demineralized water (DI water)
connection
16 Cold water connection
17 Wastewater connection
18 Transport rollers
19 Ethernet data connection for
permanent network connection
20 Mains cable

4 Description of the device
14
25 24
23
22
21
Fig.4: View inside
21 Injector rail connection fitting
22 Cold water (CW) inflow and
demineralized (DI) water
23 Salt container
24 Lower rinse arm
25 Coarse and fine sieve
31 30 29 28 27 26
Fig.5: Process agent drawer open
26 Drying fan pre-filter
27 Assignment of the process agents
28 Container for rinse aid with
suction lance
29 Suction lance bracket
30 Container for neutralizer with
suction lance
31 Container for cleaning agent with
suction lance
Symbols on the device
Manufacturer of the medical device
Date of manufacture of the medical device
MD
Identifies a medical device
SN
Medical device serial number from the manufacturer
REF
Article number of the medical device

4 Description of the device
15
Indicates the permitted temperature range (min./max.) of the water supply.
Flow pressure on the water inflow connected from min. to max.
Electrical connection of the device: AC current
Internal device fuse, rated in amperes [A]
The user manual includes important safety information. Failure to comply with these
instructions can result in injury and material damage.
Please read this user manual carefully before commissioning the device.
In affixing this CE mark, the manufacturer declares that this medical product fulfils the
basic requirements of the Medical Device Directive. The four-digit number confirms that
this is monitored by an approved certification agency.
The device may not be disposed as domestic waste. The vendor is responsible for
appropriate disposal of the device - it must be delivered to the vendor to be disposed of.
MELAG devices are synonymous for long-term quality. When you eventually need to
decommission your MELAG device, we offer a special disposal service. Simply contact
your stockist.
The WaterMark certificate is a seal of quality for plumbing and drainage products in
Australia and New Zealand.
It confirms that a product meets the requirements of the ABCB (Australian Building
Codes Board) and is approved for application.
With the adjacent label, the device manufacturer declares that the medical product
corresponds to the basic requirements of the European standard EN1717 - Protecting
Drinking Water from Contamination.

4 Description of the device
16
Operating panel and acoustic signal
Colour touch-display
The operating panel consists of a 7.8 inch touch display.
Context menu
Main area
Action bar
LED display
Status bar
Status bar
The status bar is located on the upper edge of the display.
The date and time are displayed permanently.
The navigation path is displayed on the right-hand side of the time. If the menu has more than one page,
the page numbers (e.g. 1/13 = page 1 of 13) will also be displayed here.
The serial number of the device and the number (ID) of the event will be displayed following warning and
malfunction messages. This is the information that can be transferred to MELAconnect via QR code or
which can be transferred manually in the troubleshooting area of the MELAG website, in order to access
context-dependent troubleshooting assistance.
Context menu
The context menu displays the submenus, modes and function keys temporarily and in a context-
dependent fashion.
Key Designation Meaning
VALIDATION MODE This key is displayed if the respective program can be run in
validation mode.
Press this key to change into validation mode. Validation mode can
only be run by a service technician with a corresponding PIN.
MAINTENANCE
MODE
This key is displayed if the respective program can be run in
maintenance mode.
Press this key to navigate to maintenance mode. Maintenance mode
can only be run by a service technician with a corresponding PIN.
SETTINGS Press this key to navigate to the Settings menu.
STATUS Press this key to navigate to the Status menu. Device information
and device status information is displayed pertaining to the switching
and sensor states.
LICENCE This key is displayed in the Status 1 / 14 menu screen.
Press this key to access the device licence information.
DELETE The key is displayed in the Log output > All logs menu.
Press this key to delete all logs in the internal log memory.
QR-CODE This key is displayed following a malfunction.
Press this key to open the auxiliary menu pertaining to the warning
and malfunction messages.

4 Description of the device
17
LED display and acoustic signals
The LED display to the left and right of the the main area issues a colour to indicate the operating state.
An acoustic signal is associated with the colour of the LED display and indicates an expected event.
Colour of the LED Meaning
Blue ▪ Standby
▪ Readiness after device activation
▪ User action
▪ Program active / video tutorial is running
Green ▪ Program completed successfully
▪ Active drying can be ended early
▪ Measurement successful
Yellow ▪ Instruction (e.g. fill salt or start regeneration)
▪ Warning
▪ Software update active
Red ▪ Malfunction
▪ Program / measurement not successful upon abnormal end
▪ Program / measurement not successful upon user abort
Main area
The left-hand side of the main area displays a symbol with designations for programs, additional programs,
logs, program results, messages, menus or PIN-protected areas.
A caption on the right-hand side displays the menu items, values, states of settings or headings of
dialogues. The text field is below the caption.
Text field
Title
Symbol
Symbol Designation Meaning
Busy indicator Independent activities such as a program run, log output or software
updates are visualized via animated busy indicator in a clockwise
fashion.
Successful Symbols designating the program result currently displayed.
Unsuccessful

4 Description of the device
18
Symbol Designation Meaning
Notice Symbols designating the messages currently displayed pertaining to
an event or the device status.
Warning
Malfunction
Documentation Additional markings that indicate the availability of assistance (e.g. in
the user manual, in MELAconnect or on the troubleshooting area in
the MELAG website) regarding the issue with which the current
message is concerned.
QR code
Action bar
Key Designation Meaning
BACK Press this key to display the previous window or to select a lower
parameter.
FORWARDS Press this key to display the next window or to select a higher
parameter.
LEAVE Press this key to navigate to the higher-order menu.
CONFIRM Press the key to confirm the selection or entry.
EDIT Press this key to change the displayed parameter.
UNLOCK Press this key to unlock the door.
DETAILS Press this key to obtain further information.
SKIP Press this key to skip steps.
CANCEL
CANCEL Press this key to abort a running program or process.
OUTPUT
OUTPUT Press this key to output one or more logs to a selected output
medium.
YES
YES Press this key to accept a query.
NO
NO Press this key to reject a query.
OK
OK Press this key to accept information.
START
START Press this key to start a program, program step, process or a video
tutorial.
CONTINUE
CONTINUE Press this key to start the next process step.

4 Description of the device
19
Menu structure
Universal-Program
Quick-Program
Intensive-Program
Ophthalmo-Program
Rinsing
Emptying
Conductivity measurement DI
Air removal
Regeneration
Time metering 60 s
Log output
Output internal log memory
Select output medium: automatic CF card MELAprint Computer
Main menu
All logs
Last log
All malfunction logs
Last malfunction log
Log selection
Legend log
Status log
System log
CF card formatting
/ / /
Settings
Log settings
Date
Time
Display brightness
Idle mode in min
Signal tone volume
Key tone volume
Language
DI water
Water hardness in °dH
Diagnosis and service
CF card
Network
Graphic logs
Computer
MELAprint
Immediate output
Log format
Connectivity
Multimedia
Administration
Log-in Admin PIN
User
Authentication
Batch approval
Video tutorials
>
Admin PIN

4 Description of the device
20
Water softening unit
The tap water is processed in the internal water softening unit to produce an optimal cleaning outcome.
}Use coarse-grain regeneration salt (NaCl) to regenerate the water softening unit.
Water hardness conversion table
°dH mmol/l °f °e °dH mmol/l °f °e °dH mmol/l °f °e
1 0.2 2 2 15 2.7 27 19 28 5.0 50 36
2 0.4 4 3 16 2.9 29 20 29 5.2 52 37
3 0.5 5 4 17 3.1 31 22 30 5.4 54 38
4 0.7 7 5 18 3.2 32 23 31 5.6 56 39
5 0.9 9 7 19 3.4 34 24 32 5.8 58 41
6 1.1 11 8 20 3.6 36 25 33 5.9 59 42
7 1.3 13 9 21 3.8 38 27 34 6.1 61 43
8 1.4 14 10 22 4.0 40 28 35 6.3 63 44
9 1.6 16 12 23 4.1 41 29 36 6.5 65 46
10 1.8 18 13 24 4.3 43 31 37 6.7 67 47
11 2.0 20 14 25 4.5 45 32 38 6.8 68 48
12 2.2 22 15 26 4.7 47 33 39 7.0 70 49
13 2.3 23 17 27 4.9 49 34 40 7.2 72 51
14 2.5 25 18