DR30 MAX Warewash Chemical Dispenser

DR30 MAX Warewash Chemical Dispenser
DR30 MAX
Warewash Chemical
Dispenser
Dispensing technology by Seko UK
400-2003-00
A total commitment to guaranteed reliability and optimal
performance has led to Seko being utilised in many types
of industry. Including food and beverage, agriculture,dairy
and water treatment.
We operate to the highest quality standards of (ISO 9001)
In manufacturing, R&D and product testing.
We have experienced staff and a network of specially
appointed distributors around the world to provide local
support.
Dispensing Technology for your Industry
Please visit our web site or contact us for details on our
Laundry Dispensing Products, Drain Enzyme Pumps,
Blending Stations, Sprayers and Foamers.
www.sekouk.com
SAFETY INFORMATION
Any maintenance or servicing of Seko equipment should
only be carried out by a competent professional and any
electrical work by a qualified electrical engineer.
Always isolate Seko equipment from any electrical
supply or external machine which supplies electrical
signals. This must be done prior to carrying out any
mechanical or electrical installation, repair or
maintenance. FAILURE TO DO SO MAY RESULT IN
SPILLAGE OF CHEMICAL, DAMAGE TO
EQUIPMENT OR PERSONAL INJURY
All Seko equipment should be wired to a mains supply via
a two pole isolating switch, in accordance with the
relevant electrical standards.
Seko equipment fitted with an on/off switch may be wired
to a 13Amp mains plug fused at 3 Amps, for connection to
a 13 Amp socket
Always observe appropriate precautions against chemical
contact. Refer to the chemical providers COSHH data
sheets prior to changing chemical containers or peristaltic
tubes
CONTENTS
INSTALLATION GUIDELINES
CONTENTS
PART 1
Mechanical Installation
Electrical Connections
Probe Installation
PART 2
Routine Maintenance
PART 3
Set up Procedure
TECHNICALSPECIFICATION
Voltage
Signal Inputs
Tubing
Flow Rate
Rollers
Enclosure
Motors
Approvals
Weight
210-230vac 50-60Hz
24v AC/DC to 230v AC/DC Opto Isolated
STD EPDM ( SILICONE on Request )
Detergent 200ml/Min Rinse 70ml/Min
Acetal
IP65 260mm x 180mm x 90mm
12v dc
EMC89/336/EEC EN50081-1 LVD 72/23EEC
2.3Kg
PART 1
MECHANICAL INSTALLATION
Locate the DR30 unit as close to the Dishwasher and chemical
containers as possbile , whilst taking care to avoid direct heat,
moisture or steam.
The PVC tubes from the chemical containers should ideally be
no longer than 3 Metres.
The fixing holes in each corner of the dispenser (with the lid
open) should be used to fix the enclosure to the wall in order to
maintain the waterproof sealing.
Connect the tubing from the chemical container to the inlet
connector of the relevant pump. Warming the pvc will assist
when fitting
Site the detergent tank connector above the water line of the
dish-washer away from the drain point. Drill a 6mm hole if using
the M6 stainless steel connector, or a 13mm hole if using 1/4
inch BSP.
Connect the pvc tubing from the outlet of the Detergent Pump to
the tank fitting. Again warming the tube will assist with fitting
Connect the 1/8 BSP Rinse non return valve outlet into the
boiler. If a hose connection is required for the non return valve
these can be ordered from Seko uk
Due to the pressure in the Rinse delivery line 4x6 Nylon or
PE(dependant on chemical compatibility) tubing is recomended
This can be supplied on request
Ensure suction and delivery tubes are not kinked or resting
on hot pipework
PART 1
ELECTRICAL INSTALLATION
Operation from single solenoid machines. Common rinse valve.
Always ensure the supply to the DR30 is switched off before opening
The DR30 supply must be wired via a local isolator switch
ALL ELECTRICAL WORK SHOULD ONLY BE CARRIED OUT BY A
QUALIFIED ELCECTRICAL ENGINEER
Connect the mains supply to the 6-way NLE terminal block. If the power supply is the same
as the dishwasher, so that the unit powers up with the machine. It is possible to select the
POWER UP option in the set up menu for the initial fill.
Connect Sig 2 to the switched side of the solenoid) .
For 230v Solenoids only one wire is needed from the switched side of the solenoid, and the
remaining connection can be connected to the mains neutral (or to Live if the solenoids are
Neutrally switched)
SIG 1 can also be used for initial fill (if selected in the menu) as it has a 30 second delay
enabling it to be used from a common rinse/fill valve.
Sig 2 Sig 1
Common
N
L
E
Operation from Dual Solenoid machines. Separate Fill and Rinse Valve.
Sig 1 to the Fill valve and Sig 2 to the Rinse valve.
Sig 2 Sig 1
Common
To Rinse Solenoid
To Fill Valve
N
L E
In this variation the Detergent initial fill is dosed by Sig 1
There is a 30 second qualification time on sig 1, so it will only operate if
the signal is present for 30 seconds. This is to allow for partial fill of the
tank prior to chemical dosing
3
PART 1
PROBE INSTALLATION
Mechanical
The probe should be sited in the wash tank away from the
heating element and water supply.
Drill a 21mm hole approx 75mm above the bottom of the wash tank.
It is very important that the probe is completely below the water line,
particularly when the main wash pump is operating and
causing turbulence
The probe should be sited just below the detergent injection point.
Electrical
Connect 2–core cable onto the probe by crimping each cable
onto the push-on bullet crimp tags provided.
Connect the other end of the 2-core cable to the probe terminals of the
grey terminal block. The polarity is not important.
Probe
Sig 2
Pump
2 core cable to probe
Polarity not important
Common
N
L
E
To be connected to the
Rinse Solenoid
Note
Sig 1 terminal is not used in probe mode unless sig 1 control is
selcted. If you select YES to sig 1 control the probe will only
become active when sig 1 is present. Signal 1 control overrides
the no water inhibit.
PART 2
ROUTINE MAINTENANCE
Always isolate Seko equipment from any electrical
supply or external machine which supplies electrical
signals. This must be done prior to carrying out any
mechanical or electrical installation, repair or
maintenance. FAILURE TO DO SO MAY RESULT IN
SPILLAGE OF CHEMICAL, DAMAGE TO EQUIPMENT OR
PERSONAL INJURY
WHEN HANDLING CHEMICAL APPROPRIATE PPE MUST BE
WORN AND MANUFACTURERS HANDLING PROCEDURES
FOLLOWED
Tube Changing
The peristaltic tubing will require replacing periodically, dependant on use.
To replace the pump tube first ensure the roller assembly is in the vertical
position. This can be adjusted using the relevant prime button. Once the
roller assembley is in the correct position the suction and discharge lines
can be disconnected from the pump tube.
NB Care should be taken to avoid chemical spillage.
Remove the two screws at the top of the pump face, to release the
top part of the pump head
The tubing can now be accessed and removed from the bottom
part of the pump head.
Only Seko specified tubing should be used. Failure to do so may
invalidate the warranty.
Replace the pump face cover by pressing down the top of the
pump face on to the pump tube, securing the pump tube between
the roller edges. The bottom part of the pump face can then be
clipped in to place on the bottom to the bottom part of the pump
head.
NB Ensure the clip on the bottom bracket is located inside the top
half before clipping in to place
Please ensure the tubing is during this operation. This can be
tested by using the relevant prime button.
Probe Cleaning
If you are using the DR.30 in probe mode it is important to clean the
probe electrodes and remove any scaling on a weekly basis.
The DR.30 will inform you if the probe does not work due to the
electrodes not being cleaned.
PART 3
DR30 MAX SET UP GUIDE
Under counter and hood type machine
Home display screen
With this screen displayed the user can prime either pump by pressing &
holding the - or + buttons.
To enter programming mode and to progress through the menu press the
centre arrowed button . The unit is password protected, so the first screen
will ask for a Pin Code. The standard number is 11, which can be entered by
using the up + button. If overshooting reduce by using the - button. Press the
arrow button to continue
Press the - button to enter the
set up menu & again to
program the settings
The next screen is used to select
the Initial fill dosage of
detergent. The options are,
when the unit is powered up,
recieves a signal from a fill
solenoid, or by probe (if fitted).
Use the + button to cycle
through the options.
If Power up is selected the next screen will move straight to the D
Fill time screen. If sig 1 is selected the next screen will give either
a Timed or Speed option. When the selection is made you can
then enter the run time or ml/min .Enter the value by using the + or
- buttons. Once again advance by pressing the arrow button and
the display will now show the detergent top up options. SIG 2 or
cyclic (for cyclic options see flight /conveyor machine set up )
Pressing the arrow button the display will then show the top up
time. adjust by using the + or - buttons & press the arrow to
progress
The Rinse control options are Sig 2 ,or Cyclic. (Cyclic is a
specialist option and rarely used)Press the arrow button and the
the Rinse dose options will be displayed. Either Timed or Speed.
For Speed options see flight /conveyor machines)
Adjust the Rinse dose time by using the + or - buttons and the arrow to
move to the next screen.
You are now given the option to Quit by pressing the - Button.
The programming is now complete and the display will return to
the OK Prime screen
FLIGHT OR CONVEYOR TYPE MACHINE SET UP
For flight or conveyor machines the programming
is similar to the previous set up procedure. The
initial fill of Detergent can still be dosed via Power
up or Timed (for probe option, see Probe set up).
However for the Top up dose the Cyclic option
should be selected.
Pressing the arrow button the following display will
be shown. This gives the option of dosing up to a
maximum of 60ml every 180secs by use of the + & buttons
The Rinse control options are Sig 2 ,or Cyclic.
(Cyclic is a specialist option and rarely
used)Press the arrow button and the the Rinse
dose options will be displayed. Either Timed or
Speed. For flight or conveyor machines the
Speed option should be selected
The amount of Rinse aid per minute can be selected by
use of the + & - buttons
NB As long as Sig 2 is present the Rinse pump will
pulse and the Detergent pump will run on a cyclic
basis.
During this operation the Rinse dosage is given priority
Pressing the arrow button You are now given the option
to Quit by pressing the - Button. The programming is
now complete and the display will return to the OK
Prime screen
PROBE SET UP PROCEDURE
Probe Mode can be used to dose Detergent on any type of machine
To Dose using probe mode first scroll through the menu screens as before
and select the Probe option on the D Fill display
The next screen allows the input of a set point value. This is the conductivity
value you would like to maintain
The following display shows Sig 1 control and gives the option Yes or No by
use of the + button . With Sig 1 control Yes selected the probe will only control
the dosing whilst Sig 1 is present. With the No option selected the Probe will
be in constant control and will dose accordingly
Moving on you can also select the size of tank to be dosed. This will affect
the reaction time of the alarms if no changes to conductivity levels are
seen
The following screens will display the Rinse options as before and the
appropriate selctions can be made
In Probe mode there are 2 alarm displays.
NO WATER .
When this screen is displayed the probe has been unable to read a conductivity reading as if there was no
water present
CLEAN PROBE. When this screen is displayed the probe has detected no change to the conductivity reading despite
receiving a number of Sig 2 (Top up) signals
STATISTICS MENU
The DR30 Unit has a number of useful staistical menus available. To view these menus
press the + button (Data) when the following screen is displayed. To scroll through the
displays press the arrow button. If you wish to reset these figures at any time press and
hold the + & - buttons when the RESET DATA LOG display is shown.
www.sekouk.com
Unit 2 & 3
Coldharbour Pinnacles Ind Estate
Coldharbour Road
Harlow
Essex
CM19 5JH
Tel: +44 (0)1279 423 550
Fax: +44 (0)1279 423 993
Email: sales@sekouk.com
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