Winterhalter PT 500 User manual

PT-500

About this manual
1
Operating instructions
for Winterhalter PT 500 rack pass-through dishwasher
(translation of the original German operating instructions)
Table of contents
1About this manual-------------------------------- 2
2Safety notes---------------------------------------- 2
2.1Proper use ------------------------------------------- 2
2.2Improper use ---------------------------------------- 2
2.3Electrical Safety ------------------------------------ 3
2.4Safety Instructions for Maintenance and
Repairs ----------------------------------------------- 3
2.5General safety notes ------------------------------ 3
3Before working with the machine----------- 3
4Product description------------------------------ 4
4.1Mode of operation---------------------------------- 4
4.2Overview --------------------------------------------- 4
4.3Operating panel and washing programme--- 5
5Rinse aid and detergent------------------------ 5
5.1Rinse aid --------------------------------------------- 5
5.2Detergent--------------------------------------------- 6
5.3Suction tube with level control ------------------ 6
5.4Changing the detergent product---------------- 7
5.5Priming the dosing devices ---------------------- 7
6Integral water softener (special
equipment)------------------------------------------ 7
6.1Lack of salt display--------------------------------- 7
6.2Filling regeneration salt --------------------------- 8
7Operation-------------------------------------------- 8
7.1Before switching on the machine--------------- 8
7.2Switching on the machine and preparing it
for operation ----------------------------------------- 8
7.3Washing ---------------------------------------------- 9
7.4Switching off----------------------------------------10
8Servicing and maintenance------------------10
8.1Daily Cleaning ------------------------------------- 10
8.2Weekly Cleaning ----------------------------------12
8.3Monthly cleaning ----------------------------------12
8.4Maintenance by the Customer Service ------12
9Malfunctions --------------------------------------13
9.1Poor cleaning result ------------------------------14
10Info Level-------------------------------------------15
11Error memory-------------------------------------15
12PIN Menu -------------------------------------------16
13Adjusting the machine and table-----------19
13.1Installing the machine ----------------------------19
13.2Building tables -------------------------------------19
13.3Rack guide conversion---------------------------19
14Water connection--------------------------------20
14.1Requirements for the on-site inlet water
connection ------------------------------------------20
14.2Requirements for the local water shut-off
valve. -------------------------------------------------20
14.3Connecting the supply hose --------------------20
14.4Connecting the drain pipe-----------------------20
15Electrical connection---------------------------21
15.1Mains cable connection--------------------------21
15.2Establishing an earth connection--------------21
15.3Wiring diagram-------------------------------------22
16External dosing devices-----------------------23
16.1Terminals--------------------------------------------23
16.2Electrical connection -----------------------------24
16.3Changing the settings ----------------------------25
17Taking the machine out of service for a
long period ----------------------------------------25
18Putting the machine back into service
after a long period of disuse-----------------25
19Technical Information--------------------------26
20Emissions------------------------------------------26
21Disposal --------------------------------------------26


About this manual
2
1 About this manual
This manual contains information and instructions for the safe operation and maintenance of your ware-
washer.
Please note carefully the safety instructions listed here.
The following symbols are used in these instructions:
Symbol Meaning
Danger
Warning against potential serious or fatal injuries to persons if the described precautionary
measures are not taken.
Warning
Warning against potential minor injuries to persons or potential material damage if the de-
scribed precautionary measures are not taken.
Caution
Warning against defects in or destruction of the product if the described precautionary
measures are not taken.
IMPORTANT Important information is given here.
INFO Useful information is given here.
This symbol indicates instructions.
This symbol indicates results of your actions.
This symbol indicates itemizations.
This symbol refers to a chapter with more detailed information.
2 Safety notes
2.1 Proper use
The PT 500 warewasher is a technical device for commercial use and is not intended for private use.
Use the warewasher only for the washing of dishes such as plates, cups, cutlery and trays or for washing
glasses of a gastronomic and related type.
2.2 Improper use
This device is not intended for use by persons (including children) with limited physical, sensory or mental
capabilities or who do not have the required experience with and knowledge of this device. Such persons
must either be instructed by a supervisor who is responsible for their safety or must be supervised during
the operation of the device.
Do not use the warewasher to wash electrically heated devices or parts made of wood.
Do not wash without a wash rack.
Do not wash parts made of plastic if they are not heat and lye-resistant.
Use a suitable detergent to wash parts made of aluminium such as jars, containers or plates in order to
prevent black stains.
Winterhalter Gastronom GmbH does not assume liability for any damage caused due to improper use of
the device.

Before working with the machine
3
2.3 Electrical Safety
The electrical safety of this machine is guaranteed only if it is connected to a correctly installed protective
circuit and a residual current circuit breaker. It is very important that this basic safety requirement is test-
ed and in case of doubt the house installation is checked by a qualified electrician.
Winterhalter cannot be held responsible for damage caused by a missing or broken earthing system (e.g.
electrical shock).
2.4 Safety Instructions for Maintenance and Repairs
Maintenance work and repairs may only be performed by authorized professionals. Improper mainte-
nance or repairs may cause significant danger for the user, for which Winterhalter is not liable.
When performing maintenance and repair work, unplug the powder dosing device from the power net-
work. Electricity consumers (heating element) are under voltage until the on-site mains disconnect switch
has been operated.
Only original Winterhalter replacement parts may be used for maintenance and repairs. If original re-
placement parts are not used, the warranty is invalidated.
A damaged or leaking machine can endanger your safety. In case of defects, switch off the machine im-
mediately. Switch off the local mains separator (main switch). Only then is the machine without power.
Do not operate a damaged machine. In case of defects resulting from an unknown cause, switch off the
machine, and switch it on again only when the defect has been rectified.
Contact your installer or electrician if the on-site water or electricity supply is the cause of the malfunction.
Notify an authorized service technician or your retailer if another fault has occurred.
If the mains connecting line of this device is damaged, it must be replaced by the Winterhalter or its Cus-
tomer Service or another qualified person in order to prevent hazards. The power cable must be H07 RN-
F type or equivalent.
2.5 General safety notes
Read through the safety notes and operating instructions in this manual carefully. Retain the operating
instructions for future reference. Winterhalter Gastronom GmbH does not assume liability or warranty in
case of non-adherence to these safety and operating instructions.
Use the dishwasher only after you have read and understood the operating manual. Allow the Win-
terhalter Customer Service Department to provide information about the operation and functioning of the
dish washer. Always operate the machine as described in this operating manual.
Train the operating personnel as regards handling the machine and inform them about the safety notes.
Repeat the training sessions at regular intervals to prevent accidents.
For your safety, test the local fault current circuit breaker (FI) regularly by pressing the test button.
Close the local water shut-off valve after the work is complete.
Switch off the local mains disconnector after the work is complete.
3 Before working with the machine
Have the machine set up by an authorized service technician or your dealer (13).
Get the machine connected as per the locally applicable standards and the regulations of the authorised
mechanics (water, waste water, electrical system) (14 and 15).
After connecting the water and the power properly, contact the relevant Winterhalter dealer or your dealer
for the commissioning of the machine and for providing training in its operation. Get yourself and your op-
erating personnel trained in the operation of the machine.

Product description
4
4 Product description
4.1 Mode of operation
The boiler and the tank fill and are warmed up to the operating temperature after the machine is switched on.
The display lights up in red during the warm-up phase. When the target temperatures are reached, the ma-
chine is ready for use. The display is lit in green.
The machine is fully automatic with programmes consisting of three steps: Wash, Drain and Rinse. Whilst a
washing programme is running, the display is lit in blue.
4.2 Overview
Pos. Description
(1) Machine hood (= hood)
(2) Operating panel
(3) Upper rotating wash arm
(4) Filter basket
(5) Lower rinse area
(6) Strainer
(7) Pump inlet filter
(8) Rinse area bearing
(9) Bushings for cables and hoses
(10) Water supply hose
Pos. Description
(11) Suction tube for rinse aid (blue cap and
blue suction hose)
(12) Suction tube for detergent (black cap and
transparent suction hose)
(13) Water supply hose
(14) Hoses and cable for the suction tubes
(15) Mains connection cable
(16) Connection for local equipotential bonding
system

Rinse aid and detergent
5
4.3 Operating panel and washing programme
Pos. Description
(A1) Start button
(A2) Display
(A3) Self-cleaning programme
(A4) Info button
(A5) Intensive program
(for heavily soiled dishes)
(A6) Normal program
(for medium soiled dishes)
(A7) Short program
(for lightly soiled dishes)
(A8) On/Off button
The default programme (A6) is pre-selected as soon as the machine is ready. In the display (A2) the symbol
for the washing programme appears.
Another washing programme is selected by pressing button (A5) or (A7).
5 Rinse aid and detergent
Danger
Observe the safety precautions when handling chemicals and the dosage recommendations
on the packaging.
Wear protective clothing, protective gloves and protective goggles when handling chemicals.
Caution
Use only products that are suitable for commercial dishwashers. Such products are appro-
priately marked. We recommend Winterhalter products. These are especially adapted to
Winterhalter dishwashers.
Do not put rinse aids in the storage container for detergents and vice versa.
5.1 Rinse aid
A rinse aid is necessary to ensure that water on the dishes drains off after washing and dries off after a short
while. Rinse aid is automatically metered from an external container.
The service engineer authorised by Winterhalter sets the dosing level when commissioning the machine
(12).

Rinse aid and detergent
6
5.2 Detergent
Caution
Do not use acidic cleaners.
Do not mix different detergent products in order to prevent crystallisation which could de-
stroy the detergent dosing device (5.4).
Do not use products that can create foam, e.g. hand soap, soft soap, hand wash liquid. En-
sure that these do not enter the machine even during the pre-treatment of the utensils.
A detergent is necessary to ensure that the leftovers and dirt on the dishes is cleaned. Detergents can be
supplied as follows:
Manually as detergent powder.
Automatically from an external container using a detergent dosing device.
INFO The detergent dosing device is not included in the scope of delivery of all machines. When using
an external metering device, a transfer strip is available for connecting the dosing device (16).
5.2.1 Manual dosing of detergent powder
Pre-dosing
Switch on the machine and wait until the display is lit green.
Adhere to the dosing instructions on the packaging of the detergent. The machine's tank capacity is ap-
prox. 35 litres.
Place approx. 100 g of detergent powder in the machine. This corresponds to a dosing of approx. 3 g/l.
Then start the wash cycle immediately to mix the detergent powder with the water.
Post-dosing
At each wash cycle approx. 2.5 litres of fresh water enter the warewasher, which must be mixed with deter-
gent powder.
Fill approx. 40 g of detergent powder in the machine after 5 wash cycles.
5.2.2 Automatic dosing of liquid detergent
The authorised service technician sets the dosing amount when commissioning the machine (12).
5.3 Suction tube with level control
Caution
Only use the suction tube with sufficiently stable containers. Narrow and tall containers can
tip can tip if the suction tube is pulled.
Do not place the suction tube for the rinse aid in the detergent container or vice versa.
Do not pull unnecessarily on the suction hose or main power cable, as this may lead to a
defect.
As an option, with your machine you may have one or more suction tubes. The suction tube is already con-
nected to the machine.
Figure 1:
Suction tube for detergent
Transparent suction hose
Black cap
Figure 2:
Suction tube for rinse aid
Blue suction hose
Blue cap
Figure 1 Figure 2

Integral water softener (special equipment)
7
Servicing and maintenance
Rinse the suction tube at every container change under running water. Re-
move crystallised detergent residue.
Ensure that both vent holes (a) in the caps are open.
Replace the suction tube in the container. Slide the cap downwards until the
container opening is closed.
5.4 Changing the detergent product
Danger
Mixing different detergents can lead to efflorescence that can lead to a failure of the deter-
gent dosing device. This is applicable even if the new detergent is from the same manufac-
turer.
The dosing pipe and the detergent dosing device must be thoroughly rinsed with water be-
fore the new detergent is used.
A new detergent product usually requires a new setting of the detergent dosing device. Assign the re-
quired work to a service engineer authorised by Winterhalter to attain good results.
If this is not done, the warranty and product liability of Winterhalter Gastronom GmbH expires.
Procedure:
Danger
Observe the safety precautions when handling chemicals and the dosage recommendations
on the packaging.
Wear protective clothing, protective gloves and protective goggles when handling chemicals.
Do not mix different detergents.
Remove the suction tube from the container and place it in a water-filled container.
Rinse the dosing tube and the detergent dosing device with water. To do this, use the "prime dosing de-
vice" function several times (12). The frequency depends on the length of the dosing tubes.
Place the suction tube in the new detergent container.
Use the "prime dosing device" function several times (12), to replace the water in the dosing tubes with
detergent.
5.5 Priming the dosing devices
Dosing devices must be primed when air is reached in the dosing device because the containers were not
exchanged or refilled (12).
6 Integral water softener (special equipment)
By softening the inlet water, limescale build-up in the machine and on the dishes is avoided. For the integral
water softener to work correctly, the salt container must be filled with regeneration salt.
INFO At the commissioning of the machine the authorized service technician measures the water hard-
ness and saves it in the machine's electronic control unit.
6.1 Lack of salt display
A pictogram appears in the display screen when an empty salt container requires refilling.
The display disappears after filling the salt container, as soon as approx. 3 wash cycles
have been completed and part of the salt has been dissolved.

Operation
8
6.2 Filling regeneration salt
Caution
Possible risk of damage to the water softener
Chemicals such as detergent and rinse aid inevitably lead to damage to the water softener.
Fill only with regeneration salt or pure evaporated salt.
Possible malfunction of the water softener
Do not fill with other salts (e.g table salt cleaning or de-icing salt). These can contain water-
insoluble components. Fill only with fine-grained salt (max. 0.4 - 7 mm grain size).
INFO Salt tablets are not suitable.
Proceed in accordance with Figures B1 to B5.
IMPORTANT Figure B2 is only relevant for the first filling.
Caution
Risk of rust formation in the filling area
Immediately after filling, start a wash cycle to rinse off any salt residue.
7 Operation
7.1 Before switching on the machine
Caution
Possible risk of damage due to suction of items from within the machine e.g. pieces of
cutlery
The pump inlet filter protects the circulating pump and the drain pump. Operate the machine
only with the pump inlet filter fitted.
Open the water shut-off valve.
Switch on the local mains disconnector.
For your own safety, test the on-site residual-current circuit
breaker (F1).
Open the hood.
Remove the filter cylinder (1).
Check whether the pump inlet filter (2) is fitted.
Replace the filter cylinder (1).
Check whether the rotary wash arms (top and bottom) are
fitted and properly engaged.
Close the hood.
Check whether sufficient detergent and rinse aid are pre-
sent in the storage containers. Replace the storage con-
tainers in time so that the wash results are not affected.
7.2 Switching on the machine and preparing it for operation
Press the On/Off button.
The display is lit in red.
As soon as the machine is ready for operation, the display is lit in green.

Operation
9
7.3 Washing
Caution
Possible risk of scalding from hot wash water
Keep children away from the dishwasher. The wash water is at a temperature of approx.
62 °C.
Do not open the hood while the machine is in operation. There is a risk of the hot wash wa-
ter spilling out. Stop the washing programme before doing so (7.3.6).
Possible risk of injury
During operation the hood becomes hot. Therefore, only grasp the hood by the handles.
Arrange sharp, pointed utensils so that they do not cause injury.
Possible failure of the washing programme due to heavy dirt ingress
Pre-rinse all dishes and pans with cold water. Remove food residues.
7.3.1 Arranging the dishes in the washing rack
Dishes and cutlery
Place plates with their front side facing forwards.
Place cups, bowls and pots rim down.
Cutlery should be washed either standing in the cutlery holder or lying in a shallow basket. Make sure that
they are not too close together. Soak cutlery, before you wash it.
Position knives and other sharp objects in the cutlery holder with the handle up in order to prevent inju-
ries.
Glasses
Pour out drink residue (not in the machine).
Remove scraps of paper.
Rinse off ash with water.
Places glasses rim down.
Space glasses, so they do not rub against each other. This will avoid scratches.
For tall glasses choose a basket with appropriate divisions so that the glasses are held in a stable
position.
7.3.2 Using automatic hood start
Choose a washing programme (4.3).
The washing programme remains selected until a different washing programme is chosen.
Slide the washing rack into the machine.
Check that the top and bottom rotary wash arms are free to turn.
Close the hood.
The washing programme is started.
The display is lit in blue.
7.3.3 Interrupting automatic hood start
Do not close the hood completely, but only as far as the lower detent position.
INFO The automatic hood start can be deactivated by an authorised service technician (P807). Every
washing programme must then be started by pressing the start button.

Servicing and maintenance
10
7.3.4 Changing washing programme
Select a new washing programme.
The symbol for the washing programme appears in the display.
Close the hood.
The washing programme is started.
7.3.5 End of the programme
The display flashes green, as soon as the washing programme has ended and the hood remains unopened.
7.3.6 Prematurely ending the washing programme
A washing programme can be interrupted in the following ways:
Press the start button
Press the On/Off button.
7.3.7 Periods of disuse
Do not switch the machine off during periods of disuse.
Close the hood as far as the detent position to prevent it cooling down.
7.4 Switching off
Switch the machine off at the end of the working day using the self-cleaning programme (8.1.2), so that it
is cleaned and emptied every day.
INFO If you use the On/Off switch, the tank stays filled but will no longer be kept at temperature. If the
tank temperature has dropped too much before the next washing cycle, the tank will be emptied
automatically and filled again.
8 Servicing and maintenance
Warning
Do not spray the machine and the surrounding area (panels, base) using a water hose,
steam-jet air ejector or high-pressure cleaner.
Ensure that the base of the machine is not flooded when washing it in order to prevent an
uncontrolled inflow of water.
Warning
Wear protective clothing and protective gloves before touching parts in contact with detergent
solution (filters, wash arms, ...)
8.1 Daily Cleaning
8.1.1 During operation
Remove the filter cylinder, clean if necessary and re-insert it.

Servicing and maintenance
11
8.1.2 Self-cleaning programme at the end of the working day
The machine is equipped with a self-cleaning programme that assists you when you are cleaning the inside
of the machine.
Proceed in accordance with Figures C1 to C20.
Terminating the self-cleaning programme
Press this button.
The display is lit in red.
The machine is filled again.
8.1.3 Cleaning the interior
Caution
Ensure that there are no rusty foreign objects in the machine which can also cause the "stain-
less steel rust-free" material to start rusting. Rust particles can come from non-rust-free clean-
ers, damaged wire racks or non-rust-protected water lines.
The following materials must not be used for cleaning:
High-pressure cleaner
Detergents containing chlorine or acid
Cleaning sponge or wire brush containing metal
Abrasives or abrasive cleaners
Remove dirt with a brush or a cloth.
8.1.4 Cleaning the exterior of the machine
Clean the control panel and display with a damp cloth.
Clean the external surfaces using a stainless steel cleaner and stainless steel support.

Servicing and maintenance
12
8.2 Weekly Cleaning
Cleaning the rotary wash arms (top and bottom)
Proceed in accordance with Figures D1 to D6.
Cleaning the wash arms (top and bottom)
Proceed in accordance with Figures E1 to E9.
8.3 Monthly cleaning
Cleaning the dirt trap
Close the shut-off valve for the water supply.
Clean the dirt trap.
8.4 Maintenance by the Customer Service
We recommend that you have an authorised Winterhalter service engineer carry out the maintenance of the
machine at least twice a year so that vulnerable parts can be checked and replaced accordingly. Original
spare parts must be used for repairs and the replacement of worn parts.
Worn parts are, for example:
Dosing pipes
Shafts of the rotary wash arms
Water supply hose
Winterhalter has a maintenance contract that includes these services.

Malfunctions
13
9 Malfunctions
This chapter explains the remedies for malfunctions. The causes and remedies are specified in the tables.
Contact a Winterhalter service engineer if you cannot rectify the error yourself.
Danger
Danger to life. Live components.
Do not open any machine covers or machine parts if it requires tools. There is danger of
shock.
Only a Winterhalter service engineer should carry out work on the electrical system. The
machine must first be disconnected from the mains.
Faults are displayed in the information box in the form of pictograms.
Pictogram Meaning Possible Cause Remedy
Hood is open Programme start with open hood Close the hood
Detergent is empty1Change the detergent storage
container
Rinse aid is empty 1Change the rinse aid storage
container
Lack of water
Water shut-off valve closed Open the water stop valve
Dirt filter in the dirt trap is blocked Remove and clean the dirt filter
(8.3)
Solenoid valve defective or
blocked
Contact an authorised service
technician for the repair
Integral water treat-
ment is exhausted Low salt Fill the salt reservoir with regen- erating salt (6.2)
External partial or full
demineralisation unit
blocked
Exchange the partial deminerali-
sation unit; exchange the core of
the full demineralisation unit
Strainer clogged Very dirty strainer
Remove the filter cylinder and
strainer, clean as necessary and
re-insert them.
Malfunction with error
code Various
Display the error code (11) and
assign the repair to an authorised
service technician
1is now displayed, when a suction tube with level control is used and connected to the machine

Malfunctions
14
9.1 Poor cleaning result
Possible Cause Remedy
The dishes do not get clean
No or excessively low detergent
dosing
Set the dosing amount as per the manu-
facturer’s specifications (12)
Check the dosing lines (for kinks, break-
age, ...)
Exchange the storage container, if empty
Dishes incorrectly sorted Do not stack dishes one over the other
Nozzles of the wash arms
blocked
Remove the wash arms and clean the
nozzles (8.2)
Excessively low temperatures Test the temperatures (10)
There is formation of layers on
the dishes
In case of grease residues:
The water is too hard
Check the water preparation
Clean thoroughly
In case of starch residues:
Excessively high temperatures
during manual pre-cleaning
(hand shower)
The temperature of the manual pre-wash
should be a maximum of 30 °C
The dishes do not dry on their
own
No or excessively low rinse aid
dosing
Set the dosing amount as per the manu-
facturer’s specifications (12)
Check the dosing lines (for kinks, break-
age, ...)
Exchange the storage container, if empty
For machines without integral softener:
INFO The water quality affects the washing and drying performance. We therefore recommend from a
total hardness of more than 3° dH (0.53 mmol/l) that the machine is supplied with softened water.

Info Level
15
10 Info Level
In the Info Level you can retrieve the following information:
Temperature in the boiler
Temperature in the tank
Serial number
Calling Info Level
Press the key
The following information is shown in the display:
(A)
(B)
(C)
Temperature in the boiler
Temperature in the tank
Serial number
Leaving Info Level
Press the button three times.
11 Error memory
All errors with an error code are saved in the error memory. The error that occurred last is displayed first.
Accessing the error memory
Press the button.
The temperatures are displayed.
Press the button again.
The error memory will be displayed.
Display Explanation
ERR xx Malfunction
ERR xx OK Malfunction resolved
ON ↑Entry is generated by turning on the machine
Navigating in the error memory
Press the button several times.
Older errors are displayed.
Press the button several times.
Newer errors are displayed.
Leaving the error memory
Press the button twice.

PIN Menu
16
12 PIN Menu
You can carry out the following activities in the PIN menu:
Set the dosing of the detergent and rinse aid for each programme
Prime the rinse aid dosing device
Prime the detergent dosing device
Programme the transfer strip for the connection of external dosing devices (16.3)
Explanation of the buttons
(1) Cursor left or reduce value
(2) Confirm
(3) Cursor right or increase value
(4) Back
Accessing the PIN Menu
Press the button.
The temperatures are displayed.
Press the button again.
The error memory will be displayed.
Press the button again.
The PIN input mask is displayed.
Enter PIN 1575. To do this, select the individual
figures with the button and exchange and
confirm each figure with the button.
The following selection is shown in the display:
(A) Integral detergent dosing device
(B) Integral rinse aid dosing device
(C) Ext. Dosing
Leaving the PIN Menu
Press the button.

PIN Menu
17
(A) Integral detergent dosing device
Prime the dosing devices
= Output screen
Confirm with the button.
The next screen is displayed.
Keep the button pressed.
The dosing device is primed.
Go back with the button.
The output screen is displayed.
Setting the dosing
= Output screen
Confirm with the button.
The next screen is displayed.
Continue with the or button.
The programme is displayed.
Select a programme with the or button.
Confirm with the button.
The current dosing is displayed
(number flashes).
Continue with the or button.
Confirm with the button.
The input is confirmed.
The newly set value is displayed
(number flashes).
Go back with the button.
This screen is refreshed.
Press the button to go back.
The output screen is displayed.
Repeat as necessary
for the other pro-
grammes.

PIN Menu
18
(B) Integral rinse aid dosing device
Prime the dosing devices
= Output screen
Press the button.
Confirm with the button.
The next screen is displayed.
Keep the button pressed.
The dosing device is primed.
Go back with the button.
The output screen is displayed.
Setting the dosing
= Output screen
Press the button.
Confirm with the button.
The next screen is displayed.
Continue with the or button.
The programme is displayed.
Select a programme with the or button.
Confirm with the button.
The current dosing is displayed
(number flashes).
Continue with the or button.
Confirm with the button.
The input is confirmed.
The newly set value is displayed
(number flashes).
Go back with the button.
This screen is refreshed.
Press the button to go back.
The output screen is displayed.
(C) Ext. Dosing (16.3)
Repeat as necessary
for the other pro-
grammes.