DITTING KED 640 Manuale utente

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Operating Instructions

KED 640 Espresso Grinder

”Grind-on-Demand“

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Dear customer / service personnel,

the Double Espresso Grinder „KED 640” is a fully automatic espresso coffee

grinder of the proven Ditting quality.

We have developed this product with over 80 years of experience in the manu-

facture of coffee grinders assuring you of high quality grinding of all kinds of

espresso and other types of coffee beans.

Espresso as the base of various coffee specialities requires a very precise

grind. With the „KED 640“ you can now grind two different kinds of espresso

(like decaf and regular) simultaneously in one machine.

Read through and observe the operating instructions, so you and your custom-

ers will thoroughly enjoy the ”KED 640”. Follow the safety instructions at all

time and also advise your personell.

Please store the instructions in a safe place. If anything is unclear or addi-

tional information is required, please contact your authorized dealer or us as

the manufacturer.

We will be pleased to advise you further.

We wish you unlimited pleasure and success with our product.

Ditting Maschinen AG

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Table of contents

1. Safety 4

1.1 Symbols 4

1.2 Safety Instructions 4

1.3 Purpose of Use 5

1.4 User Requirements 5

2. Technical Data 5

3. Description 6

4. Set-up and Initial Adjustments 7

4.1 Place of Installation 7

4.2 Locking in the hoppers 7

4.3 Electrical Installation 7

4.4 Adjustment of the port-a-ﬁlter rests 7

4.5 Adjustment of the cleaning alarm 8

5. Operation 8

5.1 Instructions for the ﬁrst grinding steps 8

5.2 Operating the grinder 8

5.3 Interruption of grinding (break-function) 9

5.4 Software Menu 9

5.5 Describtion of the software chapters 16

6. Cleaning 17

6.1 Cleaning with GRINDZTM Grinder Cleaner 17

6.2 Cleaning the Drip Tray and the Hoppers 18

6.3 Cleaning the Grinder Placement Surface 18

6.4 Cleaning the Grinder Casing 18

7. Maintenance and Repair 18

7.1 Grinding ﬁneness adjustment with the grinder switched ON 18

7.2 Taking off the grinder cover 19

7.3 Basic Adjustment of The Interior Grinders 19

7.4 Cleaning of the Grinding Mechanism 20

7.5 Grinding Disc Exchange 20

7.6 Removal of The Integrated Grinder 20

8. Trouble Shooting for Operating Faults 20

8.1 Safety Devices of the Grinder 20

8.2 Operating Fault 21

8.3 Alarm Signals Showing in The Display 22

9. Spare Parts 24

10. Wiring Diagrams 25

10.1 Diagram 240 V 50 Hz 25

10.2 Diagram 230V 50Hz 26

10.3 Diagram 240V 50Hz 27

11. Certiﬁcate 28

12. Warranty Conditions 28

Page Page

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Always remove the electrical plug from the outlet prior to removing the hopper

or conducting maintenance or cleaning work on the grinder.

Never operate a grinder with a damaged electrical cord. Inspect the grinder

regularly for damages of the electrical cord, plug, etc.

Any required repairs may only be conducted by authorized service personell.

For this reason, please contact a customer service repair facility, your dealer

or us directly as the manufacturer.

Do not exceed the maximum allowable continuous grinding time of 20 min.

Afterwards, allow the grinder to cool off before the next operation. Do not ex-

ceed the maximum allowable running cycle of 4 sec. ON, 6 sec. OFF (6 double

shots per minute, S3 40%) for 230V / 50Hz, and 6 sec. ON, 15 sec. OFF (4 double

shots per minute, S3 25%) for 115V / 60Hz.

Do not make any modiﬁcations or alterations to the grinder. The manufacturer

assumes absolutely no liability for damages occurring from failure to observe

these instructions.

Children cannot appreciate the dangers that can exist in the operation of elec-

trical grinders. For this reason never leave children unsupervised with elec-

tronic appliances such as this grinder.

Never operate the grinder in damp or wet surroundings.

Never operate with wet hands.

1. Safety

Please read carefully and observe the following

safety instructions. Failure to do so can result in dam-

age to the grinder and danger to the user.

1.1 Symbols

The following two symbols are used in these operating instructions:

Safety Instruction:

Imminent accident danger if you fail to observe.

General Instruction:

Failure to observe can result in damage to the grinder

and optimum operation cannot be guaranteed.

1.2 Safety Instructions

Only whole roasted coffee beans may be ground in the KED 640!

When unpacking please inspect whether the power supply (voltage) com-

plies with the grinder voltage on the manufacturer’s name plate at the bot-

tom of the grinder.

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2. Technical Data

Type KED 640

Voltage/Frequency 230-230V 50/60Hz

240V 50Hz

100-115V 50/60Hz

Rotation

230-240V 50 Hz 1420 rpm

110-115V 60 Hz 1640 rpm

Sound Emission

Idle Operation 65 dB

Operation 85 dB

Pre-Fuse 16 A-slow

Motor Fuse 5x20 10A slow

Overload Circuit Breaker

200-240V 4A T

110-115V 7A T

Max. Permissible Running 230V: 4 sec. ON, 6 sec OFF

Time of the Grinder 115V: 6 sec. ON, 15 sec. OFF

Dimensions in mm B 368, H 590, T 300

Weight 26 kg (57.3 lbs)

Hopper Capacity 2 x 750 g (2 x 1.65 lbs.)

(Please request technical data for other voltages and frequencies from the manufacturer or dealer)

1.3 Purpose of Use

Only whole roasted coffee beans may be ground in the KED 640 grinder. Pay

attention to use only clean and unground coffee. Never use the grinder to

grind other products or objects.

1.4 User Requirements

No special requirements are necessary for the user of this grinder. It is nev-

ertheless a prerequisite that these operating instructions have been carefully

read and understood and that all instructions provided are observed. In addi-

tion safety-conscious operation is expected.

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3. Description

The main components and operating elements are pictured in the illustration.

Pos. 1 Hopper with lid and ﬁnger protection

Pos. 2 Lock screw for hopper

Pos. 3 Grinding ﬁneness adjustment

Pos. 4 Brake for grind adjustment

Pos. 5 Grinder cover with lock screw

Pos. 6 Display

Pos. 7 Pre-selection button „single espresso“

Pos. 8 Pre-selection button „double espresso“

Pos. 9 „Program“-button

Pos. 10 Spout

Pos. 11 Port-a-ﬁlter mounting

Pos. 12 Port-a-ﬁlter rest

Pos. 13 Fastening screw for port-a-ﬁlter rest

Pos. 14 Start / Stop switch

Pos. 15 Drip tray (with hopper slides underneath)

Pos. 16 Main switch (at the back of the grinder)

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4.3

ectr

nsta

Prior to plugging in observe the following safety instructions:

Protect your device with separate pre-fuses (not

included in the scope of delivery) according to

the information provided under point 2 „Technical

Data“

Make sure that the pre-fuse is not overloaded by

other devices (e.g. fan heaters, deep freezers, etc)

Check whether the main voltage and frequency

correspond to the information on the rating plate

underneath the grinder.

Insert the plug into the corresponding grounded outlet.

4.4 Adjustment of the port-a-ﬁlter rests

The grinder is designed so that all different port-a-ﬁlters from various

espresso machines ﬁt into the rest for hands-free grinding operation.

4.4.1 Keep the grinder switched off. Slightly loosen the allen screws

(pos. 13) with the included allen screw driver size 3mm and pull down

he port-a-ﬁlter rest (pos. 12).

4.4.2 Push the port-a-ﬁlter of your espresso machine onto the start/stop

switch between the port-a-ﬁlter mounting (pos. 11) and the rest (pos 12).

Now push up the port-a-ﬁlter rest until the port-a-ﬁlter holds on its own.

Now refasten the screws. The adjustment is correct when the port-a-

ﬁlter stays independently remains in the mounting.

4. Set-up and Initial Adjustments

You have received your grinder in operating condition. Now you only need to

place it in a safe place and connect it to the main power socket. Proceed as

follows:

4.1 Place of Installation

Place the grinder on a level, vibration-free surface.

Never operate the grinder in moist, or even worse, in

wet surroundings!

4.2 Locking in the hoppers

Set the hopper into the bayonet socket. Grab the hopper with both hands and

turn it carefully in clockwise direction, until the bayonet locks in.

Always loosen the grind adjustment brakes and turn

both adjustments to ﬁne (setting 0) when locking in the

hoppers. Turning the grind adjustment ring repeatedly

without loosening the brake could damage the interlock.

Fasten the lock screw for the hopper (pos. 2) to prevent the hoppers from un-

authorized removal.

Page 8

In case the port-a-ﬁlter rests does not ﬁt your espresso

machine’s port-a-ﬁlter, please contact us or your local

dealer. We will be happy to send you a different rest.

4.5 Adjustment of the cleaning alarm

The software of the KED 640 has an integrated cleaning alarm which is activat-

ed at a preset amount of shots taken. This alarm should remind you of cleaning

the grinder regularly in order to increase the discs‘ lifetime.

DITTING recommends: The cleaning limit should be set

to the amount of shots that are ground per week. (For

the set-up of the limit and for resetting the counter after

cleaning see chapter 5.5.9)

5. Operation

Once the grinder is set up and ready to operate a grinding test should be car-

ried out.

5.1 Instructions for the ﬁrst grinding steps

Only use the KED 640 espresso grinder for whole roasted

coffee beans.

Observe the safety instructions under 1.2!

Never exceed the maximum permissible continuous

operating cycle of 4 sec ON, 6 sec OFF (S3 40%). Also do

not exceed the maximum allowable continuous grinding

time of 20 min. Afterwards, allow the grinder to cool

down before the next operation.

5.2 Operating the grinder

5.2.1 Switch on the grinder at the back of the casing (pos. 16).

5.2.2 Open the hopper and pour whole roasted espresso beans into the hopper

Never pour in coffee powder which would result into

immediate blocking of the discs.

5.2.3 Adjust the grinding ﬁneness by pulling the grind adjustment interlock

(pos. 4) and turning the ring (pos. 3) including the hopper to the desired posi-

tion. Note that „0“ is the ﬁnest setting and „10“ is the coarsest. Let go and

re-lock the brake to ﬁx the setting.

Test runs have proved grind adjustments 1 – 4 to be the

most common settings for espresso depending on the or-

igin, roast and blend. This should be taken into account

when adjusting the grinder for the ﬁrst time.

5.2.4 For the ﬁrst test run the grinding time settings are pre-programmed for

single shots to 2.0 sec and for double shots 4.0 sec. For changing these set-

tings please see chapter 5.3.

coarse

ﬁne

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5.2.5 Choose the single or double pre-select-button according to your

port-a-ﬁlter. The LED shows which button is selected.

Single espresso left grinder

Double espresso left grinder

Single espresso right grinder

Double espresso right grinder

5.2.7 Now brew a test portion of espresso using your machine. If the result

is unsatisfactory, alter the adjustment again by varying the grinding time and

grinding ﬁneness until the best coffee results have been achieved.

5.3 Interruption of grinding (break-function)

If the grinding process is interrupted before the set grinding time has expired,

the LED in the active pre-selection button ﬂashes. The grinding process can

be re-started by pushing the port-a-ﬁlter back into the mounting. The missing

quantity is ground. If this is not desired push the pre-selection button and the

entire set grinding quantity or grinding time is available once again.

5.4 Software Menu

The following overview shows the handling of the KED 640´s software.

5.2.6 Push your espresso machine’s port-a-ﬁlter into the port-a-ﬁlter mounting

(pos. 11/12) so that the grinding process starts.

The ﬁrst operation will not result in the desired amount

of espresso because the grinder has to ﬁll up with

ground coffee. The second shot should give the correct

result.

Page 10

Quick Manual KED 640 Basic Functions of the Buttons

PROG.

Enter (go into a lower software menu level) P5

right

go foreward in menu P8

left

decrease values in menu ( - button) P6

left

increase values in menu ( + button) P7

right

go back in menu P9

Display

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