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18

1.0 - HINTS AND WARNINGS

Please read the warning notices given in this section very carefully, because they provide important information
regarding safety in installation, use and maintenance of the pump.
• Keep this manual in a safe place, so that it will always be available for further consultation.
• The pump complies with EEC directives No.89/336 regarding "electromagnetic compatibility" and No.73/23
regarding "low voltages", as also the subsequent modification No.93/68.

N.B. The pump has been constructed in accordance with best practice. Both its life and it electrical and
mechanical reliability will be enhanced if it is correctly used and subjected to regular maintenance.

1.1 - WARNING: 
Any intervention or repair to the internal parts of the pump must be carried out by qualified and authorized
personnel. The manufacturers decline all responsibility for the consequences of failure to respect this rule.

GUARANTEE: 1 year (the normal wearing parts are excluded, i.e.: valves, nipples, tube nuts, tubing, filter
and injection valve). Improper use of the equipment invalidates the above guarantee. The guarantee is ex-
factory or authorized distributors.

1.2 - SHIPPING AND TRANSPORTING THE PUMP
The pump should always be moved in a vertical (and never in a horizontal) position. No matter what the means
of transport employed, delivery of the pump, even when free to the purchaser's or the addressee's domicile, is
always at the purchaser's risk. Claims for any missing materials must be made within 10 (ten) days of arrival,
while claims for defective materials will be considered up to the 30th (thirtieth) day following receipt. Return of
pumps or other materials to us or the authorized distributor must be agreed beforehand with the responsible
personnel.

1.3 - PROPER USE OF THE PUMP
• The pump should be used only for the purpose for which it has been expressly designed, namely the dosing
of liquid additives. Any different use is to be considered improper and therefore dangerous.The pump should not
therefore be used for applications that were not allowed for in its design. In case of doubt, please contact our
offices for further information about the characteristics of the pump and its proper use.
The manufactures cannot be held responsible for damage deriving from improper, erroneous or unreasonable
use of the pump.

1.4 - RISKS
• 

After unpacking the pump, make sure it is completely sound. In case of doubt, do not use the pump and con-
tact qualified personnel. The packing materials (especially bags made of plastics, polystyrene, etc.) should
be kept out of the reach of children: they constitute potential sources of danger.

•  Before you connect the pump, make sure that the voltage ratings, etc., correspond to your particular power

supply. You will find these values on the rating plate attached to the pump.

•  The electrical installation to which the pump is connected must comply with the standards and good prac-

tice rule in force in the country under consideration.

•  Use of electrical equipment always implies observance of some basic rules: In particular:
1 - do not touch the equipment with wet or damp hands or feet;
2 - do not operate the pump with bare feet (Example: swimming pool equipment);
3 - do not leave the equipment exposed to the action of the atmospheric agents;
4 - do not allow the pump to be used by children or unskilled individuals without supervision;
•  In case of breakdown or improper functioning of the pump, switch off, but do not touch. Contact our techni-

cal assistance for any necessary repairs and insist on the use of original spares. Failure to respect this con-
dition could render the pump unsafe for use.

•  When you decide to make no further use of an installed pump, make sure to disconnect it from the power

supply.

Before carrying out any service on the item, check:
1.  Disconnect the pins from the mains or by means of a two poles switch with 3 mm minimum distance

between the contacts. (Fig. 4).

2.  Relieve all the pressure from the pump head and injection tube.
3.  Drain or flush all dosing liquid from the pump head. This operation can also be done with the pump dis-

connected from the plant by turning the pump upside-down for 15 to 30 seconds and without connecting
the tubing to the nipples: if this operation is not possible, dismount and remount the pump head using
the four mounting screws (Fig. 12).

In event of possible losses in the hydraulic system of the pump (breakage of the "O" ring gasket, the valves
or the hoses) the pump should immediately be brought to a stop, emptying and depressurizing the delivery
hose while taking all due safety precautions (gloves, goggles, overalls, etc.).

Summary of Contents for DLX-pH/M SERIES

Page 1: ...OMPE DOSATRICI SERIE DLX DLXB pH M DLX DLXB Rx M NORME DI INSTALLAZIONE USO E MANUTENZIONE DLX DLXB pH M DLX DLXB Rx M SERIES METERING PUMPS OPERATING INSTRUCTIONS AND MAINTENANCE UNI EN ISO 9001 2000 9190 ETAD ...

Page 2: ...OLLER 26 6 1 PUMP CONTROLS 26 6 2 TYPICAL INSTALLATION 26 6 3 ACCESSORIES 26 6 4 LEVEL CONTROL 27 6 5 COMMISSIONING THE PUMPS 27 6 6 SET POINT REGULATION 27 6 7 ACID OR ALKALINE DOSING 27 6 8 PROPORTIONAL FUNCTIONING 27 6 9 FUNCTIONS 27 6 10 ACTIVATION DISACTIVATION OF THE FUNCTIONS 28 7 0 MICROCONTROLLED METERING PUMP WITH pH CONTROLLER 29 7 1 PUMP CONTROLS 29 7 2 TYPICAL INSTALLATION 29 7 3 ACCE...

Page 3: ... The manufactures cannot be held responsible for damage deriving from improper erroneous or unreasonable use of the pump 1 4 RISKS After unpacking the pump make sure it is completely sound In case of doubt do not use the pump and con tact qualified personnel The packing materials especially bags made of plastics polystyrene etc should be kept out of the reach of children they constitute potential ...

Page 4: ...ete overview of all the pump components These drawings are in any case quite indispensable whenever defective parts have to be re ordered For the same purpose the appendix also contains other drawings showing the hydraulic parts pump head and valves 1 6 2 DISMANTLEMENT Proceed as follows before you dismantle the pump or before performing any other operation on it 1 Disconnect the pins from the mai...

Page 5: ...als used for the construction of the pump make it particularly suitable for aggressive liquids The metering pump has been designed to feed liquids with capacities from 0 to 20 l h and pressures from 0 to 15 bar depending on the model selected 2 2 COMMON FEATURES The products are manufactured according regulation IP 65 protection Antiacid plastic casing Control panel protection assured by an adhesi...

Page 6: ...cteristics of our equipment at maximum ratings can vary with a tolerance of 5 which must be taken into account when choosing the type of pump i v p bar 20 10 15 5 0 0 5 10 15 20 l h 2 10 5 7 1 15 5 12 8 10 15 4 20 3 Fig 2 MAIN FEATURES Fig 3 Tipo Type Portata max Max flow Pressione max Max press Max imp min Max imp min Dosaggio per imp Output per stroke Corsa Stroke Altez aspiraz Suction height Al...

Page 7: ...ceed 2 meters When the process plant in which the pump is installed is operating at atmospheric pressure no back pressure and the chemical tank is situated above the plant Fig 6 the condition of the injection valve should be checked at regular inter vals because excessive wear and tear could cause additive to drip into the plant even when the pump is shut down If the problem persist install a prop...

Page 8: ...r relief valve B up to all the air in the pump head will be out f Try to keep both the suction and discharge hose as straight as possible avoiding all unnecessary bends g Select the most appropriate injection point on a pipe of the plant to be treated and there fit a 3 8 female gas thread connector similar to BSPm This connector is not supplied with the pump Screw the injection valve to the gas co...

Page 9: ...nection 2 No connection 3 Level probe wire 4 Level probe wire Output mA signal connection Configuration Pin 1 No connection 2 No connection 3 mA signal wire 4 mA signal wire 4 2 3 1 BLU BLU To level probe 4 2 3 1 Output mA signal Fig 10 3 3 MANUAL STROKE LENGHT ADJUSTMENT upon request only for DLXB press and turn the knob 1 up to the stroke lenght adjustement required 1 POS 3 POS 2 ...

Page 10: ...ch with 3 mm minimum distance between the contact b disconnect discharge hose from pipework c remove the suction hose with filter from the tank and dip it into clean water d switch on the metering pump and let it operate with water for 5 to 10 minutes e switch OFF the pump dip the filter into a hydrochloric acid solution and wait until the acid finishes cleaning f switch ON the pump again and oper...

Page 11: ...ion button 3 Decreasing values button LEFT 4 Red LED GAIN 5 Red LED ZERO 6 Yellow LED level alarm 7 Red LED injection pulse 8 Green LED power supply 9 LCD display 10 Setpoint regulation button 11 Function selection button 6 2 TYPICAL INSTALLATION Fig 14 A Injection valve B Power supply C Filter E Electrode I Chemical tank P Electrode holder V Process tank 6 3 ACCESSORIES 1 flexible PVC suction hos...

Page 12: ... button to confirm and the pump will go into the hysteresys programming The pump shows the value previously set e g 00H hysteresys 0 05pH by using RIGHT and LEFT buttons it s possible to modify this parameter with steps of 0 1pH 01H 0 1pH Push the SET button to confirm the choose the pump goes to the delay time setting The display shows the value of the delay in seconds related to the activation o...

Page 13: ...ith the RIGHT button it s possible to activate the function while with the LEFT button to disactivate To confirm the choice press F and if the function have been change this is recorded otherwise it goes to the next function up to F3 then the pump exits from the function menu and goes in measuring mode If no buttons is pushed for 60 seconds the pump will automatically goes back to the measuring co...

Page 14: ...ration button 3 Decreasing values button LEFT 4 Red LED GAIN 5 Red LED ZERO 6 Yellow LED level alarm 7 Red LED injection pulse 8 Green LED power supply 9 LCD display 10 Setpoint regulation button 11 Function selection button 7 2 TYPICAL INSTALLATION Fig 16 A Injection valve B Power supply C Filter E Electrode I Chemical tank P Electrode holder V Process tank 7 3 ACCESSORIES 1 flexible PVC suction ...

Page 15: ...hoose the pump goes to the delay time setting The display shows the value of the delay in seconds related to the activation or disactivation of the set point from the moment the reading value passes across the setpoint e g d02 2 seconds delay Push the SET button to confirm The pump will go in measuring mode 7 7 OXIDATIVE OR REDUCING DOSING The Rx M metering dosing pump can control the Rx level dos...

Page 16: ...ed With the RIGHT button it s possible to activate the function while with the LEFT button to disactivate To confirm the choice press F and if the function have been change this is recorded otherwise it goes to the next function up to F3 then the pump exits from the function menu and goes in measuring mode If no buttons is pushed for 60 seconds the pump will automatically goes back to the measurin...

Page 17: ...doesn t work contact manufacturer Customer Service Dealer or Distributor GREEN LED POWER ON RED LED PULSE OFF THE PUMP DOES NOT PULSE Press the START button If the pump doesn t work contact manufacturer Customer Service Dealer or Distributor PUMP PULSES ARE NOT CONSTANT Check that supply voltage is within 10 of rated voltage THE DOSING PUMP GIVES ONLY ONE PULSE Disconnect the equipment and contact...

Page 18: ...HEAD O RING 9 DIAFRAMMA IN PTFE PTFE DIAPHRAGM 10 FLANGIA FLANGE 11 CONNETTORE SERVIZI FEMMINA OUTPUT CONNECTOR FEMALE 12 CONNETTORE SERVIZI MASCHIO OUTPUT CONNECTOR MALE 13 FISSAGGIO CONNETTORE 2 9X9 5 2 9X9 5 CONNECTOR SCREW 14 GUARNIZIONE DI TENUTA CONNETTORE CONNECTOR GASKET 15 VITE FISSAGGIO ELETTROMAGNETE M4X8 M4X8 ELECTROMAGNET SCREW 16 PRESSACAVO DI ALIMENTAZIONE CABLE CLAMP 17 O RING DI T...

Page 19: ... HEAD O RING 9 DIAFRAMMA IN PTFE PTFE DIAPHRAGM 10 FLANGIA FLANGE 11 CONNETTORE SERVIZI FEMMINA OUTPUT CONNECTOR FEMALE 12 CONNETTORE SERVIZI MASCHIO OUTPUT CONNECTOR MALE 13 FISSAGGIO CONNETTORE 2 9X9 5 2 9X9 5 CONNECTOR SCREW 14 GUARNIZIONE DI TENUTA CONNETTORE CONNECTOR GASKET 15 VITE FISSAGGIO ELETTROMAGNETE M4X8 M4X8 ELECTROMAGNET SCREW 16 PRESSACAVO DI ALIMENTAZIONE CABLE CLAMP 17 O RING DI ...

Page 20: ...lete di raccordo Complete injection valves A 11 VALVOLA A LABBRO 20 l h 20 l h LIP VALVE 1202 1303 2812 A 12 VALVOLA A LABBRO 30 l h 50 l h 30 l h 50 l h LIP VALVE Valvole a labbro Lip valves Valvole speciali Special valves 2801 4101 2806 2802 2411 A32 VALVOLA A SFERA MANDATA DISCHARGE BALL CHECK VALVE 1201 1302 2810 8501 4102 8401 2802 A 21 VALVOLA A SFERA GRAVITÀ 20l h 20l h GRAVITY BALL CHECK V...

Page 21: ...con spurgo manuale Manual air bleed pump head 1201 1202 1302 Axx 8301 2501 2813 2818 3900 3907 Axx 8301 1302 1201 1202 2810 2812 1903 1703 2810 2812 Bxx 6401 6101 6501 6301 2401 1901 1801 Exx Elettromagnete Completo Complete Electromagnet Filtro Std fino a 20 l h Std Filter up to 20 l h C01 1201 A12 8101 36 ...

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