Protec Promix A40 User Manual

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Page 1

Automatic Mixer

Operating Instructions

English

PROTEC® Medizintechnik GmbH & Co. KG

Lichtenberger Strasse 35, D-71720 Oberstenfeld, Germany Telephone: +49-7062-9255-0 e-mail: [email protected]

Machine No.:

Type:

Installation Date:

Status : June 2004/3.0

Subject to change

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EU-Declaration of Conformity

PROTEC® Medizintechnik declares, that the product

Description:

Machine type:

Model no.

conforms to the following harmonized standards:

PROMIX A40

Automatic Mixer

1180-1-0000, 1180-2-0000

Safety:

EMC:

according to the regulations of:

EN 61010-1 (VDE 0411 Part 1, 03/1994); DIN 1988 T4,12/1988

EN 50081 Part 1, 03/1993; EN 50082 Part 1, 03/1993

• the Medical Device Directive 93/42/EEC “Class 1”,

• the Low Voltage Directive 73/23/EEC and the

• EMC Directive 89/336/EG

PROTEC® Medizintechnik GmbH & Co. KG, Lichtenberger Strasse 35, D-71720 Oberstenfeld, Germany

Place and date of issue: Oberstenfeld, 12th January, 1999 Jochen Krupp (Technical Manager Analog Systems)

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Table of Contents

Introduction .......................................................................................................... 3

Technical Specifications ..................................................................................... 4

Safety Instructions............................................................................................... 5

Installation ............................................................................................................ 6

Operation .............................................................................................................. 8

Bottle Opener ..................................................................................................... 11

Cleaning and Maintenance................................................................................ 12

Advice on Unit Errors ........................................................................................ 13

Service Manual as appendix, see page

Changing the Mixing Volume / Setting the Mixing Times .............................. 14

Trouble Shooting ............................................................................................... 14

Connection Diagram .......................................................................................... 15

Spare Parts ......................................................................................................... 16

Electric Diagrams............................................................................................... 18

Information on Liability

This manual has been checked for correctness. The instructions and specifications were correct at the time it was published. Future automatic mixers may have modifications without prior notice. PROTEC® Medizintechnik does not take responsibility for damage caused directly or indirectly by error, omission or non-conformity of the manual.

Medizintechnik.

Introduction

The PROMIX A40® is a fully automatic chemical mixing machine for preparing developer and fixer bath chemicals of either powder form or liquid concentrates. All stages are guided and controlled by means of a microprocessor. Thanks to a large reserve tank, up to three machines can be connected and continue to operate, without having to interrupt the working process even during refilling.

Due to its patented design, the PROMIX A40 virtually service free. The robust magnetic circulation pumps are resistant to crystalisation and pollution and ensure fast and throrough mixing of the chemicals.

The PROMIX A40

These Operating Instructions contain important instructions for installation, operation and servicing of the machine. Please read the provided information carefully to ensure reliable and satisfactory operation of your PROMIX A40

replaces the usual regenerator tanks in the darkroom.

is easy to operate, reliable, fast and

English

PROMIX A40

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Technical Specifications

Tank volume:

Reserve tank:

Mixing times:

Pump capacity:

Water connection:

Water intake:

Noise level:

Environmental conditions:

Pollution degree:

System protection:

each 40 litre maximum

Mixing volume 20, 25, 30 or 40 litres can be adjusted by setting of float switches.

each 13 litres

variable, 2, 3, 5, 10, 15, 20, 25, 30 minutes

38 l/min

Admissible water pressure: 2-10 bar (29-145 psi), Admissible water temperature: 5-30 °C (41-86 °F)

9 litres per minute and tank

Less than 55 dB(A)

1) Temperature 5-40 °C (41-104 °F), ventilated room,

2) Relative humidity lower than 80 % up to 31 °C, linearly decreasing to 50 % at 40 °C.

3) Height above sea level less than 2000 m (6666 ft).

4) Indoor use

IP 20

Electrical connections:

Power consumption:

Weight (unit):

Dimensions (LxWxH):

Floor space required:

Electrical specifications are indicated on the model nameplate. Type 1180-1-0000: 220-240 V~, 1.1 A, 50 Hz. Type 1180-2-0000: 220-240 V~, 1.1 A, 60 Hz. Device acc. to IEC 1010 (EN 61010, VDE 0411) overvoltage category II, fuse protection: sb 2 A / 250 V

0.3 kWh

28 kg (61.7 lb) empty, 108 kg (238.1 lb) filled

height = 93 cm (36.6 '') width = 65 cm (25.6 '') depth = 44 cm (17.3 '')

0.29 m

(3.1 sqft)

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Safety Instructions

To ensure safe operation of the mixer, installation and use should always conform to the instructions contained in this manual. Prevention of water overflow damages: When the machine cannot be supervised, the water supply tap should be shut off.

The developer and fixer chemicals used in the processor should be handled according to the manufacturers instructions. In general: Undiluted chemicals are caustic. For this reason, avoid skin contact and wear suitable equipment for personal protection, such as safety glasses and gloves when handling chemicals. If chemicals have come in your eyes, rinse the eyes immediately with cold, running water for approximately 15 minutes and contact a medical doctor afterwards. Inhalation of chemicals can be dangerous to your health and should be avoided. For this reason, always ensure that the room in which the processor is installed is adequately ventilated.

Environmental regulations regarding the storage and disposal of waste chemicals should be obtained from the local water authorities and complied with.

English

Before opening the unit, switch off the unit and unplug it from the electrical socket. Service and repairs must be performed by trained service technicians only. Use only manufacturer´s replacement parts.

PROMIX A40

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Installation

1. Requirements for Installation

a. Fresh water connection: Shut-off tap, thread with 3/4" outside diameter (wash-

ing machine connection), Water pressure 2 - 10 bar (29 - 145 psi).

b. Drainage connection:

mum drainage rate 18 l/min. Regulations for wastewater treatment by local authorities must be observed.

c. Electrical connection:

60 Hz, 2 A. It is recommended to install a control switch and fault current circuit breaker with 25 A / 30 mA rated fault current between power socket and power cord.

Electrical connections should be carried out according to regulations by an electrician.

2. Set-Up

a. Unpack the unit and transport it to the installation site.

b. Connect the water supply hose (gray) to the prepared 3/4" shut-off tap.

c. Connect the processor´s replenishment connections to the replenishment

hoses. Pay attention to the colours: red = developer (left tank), blue = fixer (right tank).

Plastic tube - inner diameter 50 mm (2”) or larger. Maxi-

Fused socket with earth connection 220 - 240 V, 50 or

Important! To avoid damaging the connection fitting, fasten the replenishment hoses at the underside of the mixer using the cable ties supplied (see sketch).

d. Connect the overflow hoses to the prepared drain siphon. Do not bend or kink

the hoses. Fasten the hoses using the cable ties supplied. The local regulations for drainage of wastewater must be observed.

e. After the mixer has been installed, a technician should check the function of

the water-stop switch. To do so, open the water tap and switch the mixer on. As the water flows into the mixer, lift up the top float switch with your hands. When you lift it to the upper position, the float switch must shut off the water supply. Check this on both mixing tanks.

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Installation

Controller section

Operation of the unit

Power connection

Cover flap

with funnel that can be taken out

Developer

mixing tank

Power switch

and fuse

Fixer

mixing tank

Water connection

Hand-held hose

for manual pumping.

Important! Keep the

shut-off tap closed (see

page 9).

English

Emergency

overflow

Developer

reserve tank

Fixer

reserve tank

Please note that the buttons for operation, the hand-held hoses and the covers of the mixing tanks are colour-coded.

RED = developer (left mixing tank)

BLUE = fixer (right mixing tank)

PROMIX A40

Replenishment hoses

connect to

replenishment

connections at the

processor.

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Operation

Display and buttons for the developer mixing tank (red)

Water supply

Display flashing: open tap or leave it open.

Add chemicals

Display flashing: add chemicals to the respective mixing tank.

Mix

Button starts the mixing process after chemicals have been added.

Mixing completed / Stand-By

Display on: Mixing process is complete, close water tap.

Developer:

Display and buttons for the fixer mixing tank

(blue)

Fixer:

Pump On/Off

Button for manual pumping of chemicals.

Important! Do not switch the unit off during the mixing cycle. This could result in partially mixed chemicals flowing into the reserve tank. Prepare fresh chemicals only when the mixing tank is empty. Prepare chemicals in the correct tank!

Preparing the Chemicals

When the mixing tank is empty, chemicals can be prepared.

1. Open the water supply tap and close the shut-off taps on the hand-held hoses.

2. Switch the unit on at the power switch. The mixer now automatically fills with water. A beeping sound occurs at an interval and the display Water supply (1) flashes.

3. When the mixer has filled up to half full, the water supply stops for a moment. (At the end of the mixing process, more water will be filled in, therefore leave the tap open.)

4. The display Add chemicals (2) flashes and a continuous beep is heard. Open the cover flap and fill the powder or liquid concentrate into the respective mixing tank; observe the manufacturer´s instructions.

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Operation

5. After filling in all the components of the chemicals, press the Mix button (3) to start the mixing process. The Mix display is on during mixing.

6. After the initial mixing phase, more water is added until the final level is reached (20, 25, 30 or 40 l). The second mixing cycle completes the mixing process. The Mixing completed display (4) indicates that mixing is complete and the unit has changed to stand-by mode. Close the water supply tap now. The ready mixed chemicals now flow into the reserve tank. This can be seen by the dropping liquid level in the mixing tank.

Stand-By Mode

In stand-by mode the mixer monitors the filling level of the chemicals. When the chemicals in the mixing tank have been depleted (reserve tank is still full), an interval sound is heard and the Water supply display (1) flashes. Open the water supply tap and start preparing the chemicals as described above.

Important! Keep the cover flaps of the mixer closed at all times to prevent the chemicals from oxidizing or crystallizing. This will also prevent unpleasant odours from the chemicals.

Manual Pumping Off / Mixing

To fill the processor, e. g. when new chemicals have been prepared, the chemicals can be pumped out of the mixer manually, using the hand-held hoses. To do so, switch the pump on with the Pump On/Off button (5). To pump out chemicals, open the shut-off tap on the hand-held hose. Upon completion, be sure to close the shutoff tap on the hand-held hose and switch off the pump.

English

Important! The shut-off tap on the hand-held hose must always be closed, unless you are just pumping out chemicals. If the shut-off tap is open during the mixing process, chemicals will escape!

This function can also be used to start an additional mixing process manually, e. g. when hardener or additives are added. Keep the shut-off tap on the hand-held hose closed. Switch the pump on. The mixing process automatically stops after 15 minutes, but can be stopped at any time before by pressing the Pump On/Off button(5).

Important! Do not shift the PROMIX A40

Handle all connections with care to prevent damage.

Attention! The distance between the PROMIX A40 X-ray film must be sufficient, because the LED of the display can otherwise cause exposure of the film.

when it is filled!

and an undeveloped

PROMIX A40

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Operation

Setting the Mixing Time

The mixing time is set using the operating elements.

2 min.

3 min.

5 min.

10 min.

To change the mixing time, proceed as follows:

1. Switch the unit off.

2. Press one of the two buttons Mixing (developer or fixer) and while keeping it pressed switch the unit on.

3. The respective LED´s light up to indicate the set mixing time.

4. By pressing the Mixing button repeatedly, change the mixing time. The adjustable mixing times are selected one after the other: 2, 3, 5, 10, 15, 20, 25 or 30 minutes. The number of LEDs that are on, correspond to the mixing time (see sketch).

The set mixing time applies to the developer and

Only change the mixing time when the OK display is on or the mixing tank is empty, that is, by no means after fresh water for a new mixing process has already been filled in. While settings are made, the solenoid valve and pump are shut off. Therefore, do not change the mixing time while the mixer fills with water or during the mixing process, as this could dilute the chemicals in the reserve tank.

fixer mixing processes.

15 min.

20 min.

25 min.

30 min.

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Bottle Opener

Installation

If you are using liquid chemicals supplied in bottles with membrane cover, the bottles can be opened easily and without splashing using the bottle opener. Fasten the bottle opener supplied inside the filling funnel as shown in the drawing.

Filling funnel Nut Screw

English

Use of the Bottle Opener

Place the bottle vertically onto the tip of the bottle opener and press it down. On bottles with strong plastic covers, place the bottle on the bottle opener so that the tip of the opener rests in the groove in the cover provided for this purpose.

Bottle opener

PROMIX A40

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Cleaning and Maintenance

If necessary, the mixer can be cleaned. Wipe the outside surfaces with a wet cloth. Use lukewarm water, but no cleaning agents or solvents. The filling funnel for the powder should be removed and cleaned regularly.

Intermissions

Before going on holiday or when the mixer will not be used for a longer period of time, the chemicals can be pumped out of the mixing tank. This may be done using the mixing pump (see “Manual Pumping Off / Mixing” on page 9). The chemicals in the reserve tank do not need to be pumped out. They can be stored therein for several weeks.

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Advice on Unit Errors

Your automatic mixer has been designed for intensive long-term use. However, if irregularities occur, you will find help to locate the problem below. Please check the listed points, before calling your service-technician.

Mixer does not switch on

• Plug the power plug firmly into the socket. Ensure that the power socket conducts power by testing with an appliance (e. g. tablelight).

Mixing process does not start automatically

• One of the float switches in the mixing tank has gotten stuck in the upper position.

No water is supplied

• Open the water supply tap.

• Water pressure in the supply system is too low.

Faulty preparation of chemicals

• Upon a faulty preparation of chemicals you can drain the reserve tank by opening the shut-off tap on the replenishment hose. Before opening, shut off the processor connected and separate it from the mixer. Otherwise the replenishment pumps might draw in air. Rinse the mixer thoroughly several times!

English

Chemicals not adequately mixed

• Powder concentrate has been stored badly, may be damp and lumpy, causing a bad mixing result. Start an additional mixing cycle by pressing the Pump On/ Off button. After 15 minutes mixing time the pump shuts off (see page 9).

All displays on, water supply indicator flashes

• When the mixing tank was empty, water supply was started, but the half full level has not been reached after 30 minutes. The water supply tap has not been opened or the water pressure is insufficient. To reset the error message, switch the unit off.

All LEDs are flashing

• The bottom float switch has gotten stuck. Loosen the bottom float switch and switch the unit off to reset the error.

PROMIX A40

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Trouble Shooting

Service Manual

Changing the mixing volume

• If you wish to change the mixing volume, the position of the two centre float switches must be changed. The respective positions are indicated in the drawing on page 16.

Setting the mixing times

• The mixing times can be set using the mixing buttons (developer or fixer, see page 10). The mixing time must be set to fit the volume mixed (20, 25, 30 or 40 litres) and the type of chemicals used (liquid concentrate or powder). A smaller volume with liquid concentrate generally requires a shorter mixing time (see page 10).

Trouble Shooting

Unit does not switch on

• Ensure that the power socket conducts power.

• Check the unit´s fuse in the controller housing.

• Check the continuity of the power switch, replace the power switch if necessary.

Unit does not start, no water flows in

• The float switches are not connected or the cables are interrupted.

• The float switch has gotten stuck in the upper end position.

• The electronic controller is defective, replace.

Water supply does not stop

• If the water supply does not stop in the set positions, the respective float switch has gotten stuck in the bottom position or its cable is shorted.

• The electronic controller is defective, replace.

No water supply

• The water pressure in the water supply system is too low: min. pressure 2 bar.

• The valve opens, but no water flows through: coarse inlet filter of the valve is blocked.

Unit does not mix, pump is not running

• Check the voltage at the pump connection in the controller, replace the pump if necessary.

Attention! The pump cannot be repaired, since this would damage its water-tight jacket.

• If there is no voltage at the pump connection, the electronic controller must be replaced.

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Electric Diagram

Ausschalter

Mainswitch

Erde Earth

Eingänge Input

Sicherung Fuse T/sb 2A/250V

Steuerteil Electronic

Ausgänge Output

Niveauschalter F1 - Level switch F1

Niveauschalter F2 - Level switch F2

Niveauschalter F3 - Level switch F3

Notaus - Emergency stop

Niveauschalter D1 - Level switch D1

Niveauschalter D2 - Level switch D2

Niveauschalter D3 - Level switch D3

Notaus - Emergency stop

Fixierer-Pumpe Fixer pump

E E R E R

D N

E T

L C

O K

English

E R

Magnetventil Fixer

Solenoid valve fixer

Entwickler-Pumpe Developer pump

Magnetventil Entwickler

Solenoid valve Developer

Magnetventil extern

Solenoid valve external

PROMIX A40

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Spare Parts

45-6

40l

Wasserstop Notaus Water-stop, Emergency stop

7-8

23 21

30l

25l

20l

10l

Position of Float Switches Standard Mixing Volume 40 Litres

c Auto On float switch (do not change position) d Half full level - 20 l

Position this float switch in the 10 l position, if the mixing volume is to be set to 20 or 25 litres.

e Full level - 40 l

Position this float switch in the 30 l, 25 l or 20 l position for mixing volumes of 30 litres, 25 litres or 20 litres.

f Water stop, emergency shut-off (do not change position)

Auto-Ein Auto-ON

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Spare Parts

Pos. Order No. Description:

1 0180-5-1000 Controller, complete

2 1180-0-1203 Cable cover

- 2010-0-0009 Fuse 5 x 20 T 2 A / 250 V

- 2004-0-0010 Electrical power cable

- 2028-0-0023 Power switch

3 2006-0-0005 Drain shut-off tap 10 mm

4 1180-0-0106 Flap

5 2031-0-0014 Handle, red

6 2031-0-0015 Handle, blue

7 1180-0-2200 Feed funnel, developer

8 1180-0-2100 Feed funnel, fixer

9 2006-5-0003 Solenoid valve

10 1101-0-0121 Support for solenoid valve

11 0180-1-0800 Centrifugal pump 50 Hz

0180-2-0800 Centrifugal pump 60 Hz

12 2021-0-0009 Ball check valve

13 1180-0-1400 Mixing nozzle

14 1180-0-1600 Level switch

15 1180-0-0204 Support for level switch

16 1180-0-0202 Securing bracket

17 1180-0-0700 Pump tray, complete

18 2030-0-0015 Ring of cellular rubber 280 x 7

19 2030-0-0016 O-ring 22 x 4

20 2019-0-0006 Elbow fitting, reducing

21 1180-0-0211 Inlet pipe

22 1180-0-0900 Level switch (50 mm)

23 1180-0-0215 Support for level switch (50 mm)

- 2018-0-0001 Water inlet tube

English

Hose 10 x 2 mm, with fabric inlay

- 2018-0-0008 Colour red

- 2018-0-0009 Colour blue

- 2018-0-0012 Colourless, transparent

Special Accessories

- 1180-0-0103 Rear wall

- 1263-0-0000 Carriage

PROMIX A40

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Electric Diagrams

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Electric Diagrams

English

PROMIX A40

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Electric Diagrams

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