Product description 1. GENERAL DESCRIPTION Dostec AC is a diaphragm or piston dosing pump with advanced control for an accurate and efficient automatic dosing. This series allows many dosing possibilities depending on the chosen head. The flow range covers needs from 3 to 1200 l/h at a pressure of up to 20 bar. The choice of the correct head material between PP, PVDF and stainless steel allows the dosing of any commonly used chemical in the water treatment, chemical, food and agriculture industries.
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Configuration Inputs/outputs • Analogue input 0/4 - 20 mA • RS-485 ModBus serial port • External pulse input • 4 - 20 mA log and monitoring output • Remote activation input (on/off) • Log output, monitoring and control of second •...
Configuration 220- 73-AC3D43-D163 73-AC3D44-D163 1240- 820 - 320- 210- 1200- 780 - 310- 200- 740 - 1160- 190- 300- 700 - 1120- 180- 290- 660 - 1080- 170- 280- 620 - 1040- Bars 270- Bars 72 PSI 4. OPERATION The rotational motion of the motor is transmitted by the reducer, which consists of two major components, the pinion (A) and the ring gear (B).
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Configuration LCD DISPLAY DESCRIPTION Advanced dosing function Programming locked 1 0 0 % flow 0240 Level 1 Level 2 1 4 4 Cycles/min l / h Flow rate fault Leakage ON/OFF MODE Overpressure Loss of pulse Mode Configuration Alarm Monitor Menus 4.1 Operating modes 4.2 Configuration...
Configuration 4.1 OPERATING MODES 4.1.1. Manual mode This mode allows manual adjustment of the dosing flow rate. 0 0 0 0 0 0 0240 0240 Manual MODE: Proportional 0 0 0 0 0 0 Analog l / h l / h Batch ModBus MODE...
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Configuration PROPORTIONAL X:Y Select the number of pump cycles 0001 0001 Change by pressing and confirm by pressing Q = 025 % M = 005 pulses PROPORTIONAL X:Y Select pump speed in % Change by pressing and confirm by pressing 0001 0001 For Y=1 Q must be set at less than 50%...
Configuration Select ON to perform proportional dosing with a volume limit. PROPORT. The pump will stop when it reaches the ENT maximum volume Set Point 000,05 to be dosed. Stop Pump Change by pressing and confirm by pressing Stop Vol (1) 03,6 PROPORT.
Configuration ANALOG INPUT INPUT Select mA output for the second point Change by pressing and confirm by pressing 16,0 mA 100 % ANALOG INPUT SPAN Select the flow rate in % for the second point in mA 4 mA 000 % Change by pressing and confirm by pressing 20 mA...
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Configuration Batch dosing mode settings 4.1.4.1 Select start-up mode BATCH MODE Start Man. Manual: start the pump by pressing Flow 000 % Stop Stroke BATCH MODE Start Ext.: start the pump via remote input Flow 000 % Stop Stroke BATCH MODE Start Time Time: start the pump via a timer by entering a frequency...
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Configuration BATCH MODE Start Man. Time: set cycle execution time before stopping Flow 050 % Stop Time BATCH MODE Start Man. Change by pressing and confirm by pressing Flow 050 % Stop 00 : 00 : 10 Volume 333,33 l Viewing the different configuration modes Volume to be dosed 01,379 l...
Configuration 4.1.5. Special Functions 4.1.5.1 Remote activation An external remote control can be used to start and stop the pump by means of dry contact in pins 17-18. 4-20mA REMOTEL EVEL 1 LEVEL 2 PULSE STOP 17 18 RUN (factory default) 17 18 When the contact is closed (RUN) the pump may be run manually via the ENT key.
Configuration PUMP CALIBRATION TEST TIME Change by pressing and confirm by pressing ENT to start PUMP CALIBRATION PUMP CALIBRATION Enter the value in the unit PROGRESS Dosed volume 03,333 confirm by pressing Strokes Speed P. 0415 Max.Curr. 04,5 Press to finish the calibration process PUMP CALIBRATION Dvol: volume dosed DVol...
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Configuration 4.2.2.2 Low flow The Low Flow mode (LF) allows dosing to be paused during the discharge cycle, extending the dosing time and therefore reducing the flow to as little as 1%. The other modes allow the flow to be reduced to as little as 10%. DOSING MODE Mode: Low Flow...
Configuration 4.2.3 Configuration 4.2.3.1 Dosing pump Technical characteristics of the pump 0 0 0 SET UP 0240 CONFIGURATION DOSING PUMP PUMP CALIBRATION 0 0 0 UNITS l / h DOSING MODE FLOWMETER SET UP LOCK CODE IN / OUT MODE MODBUS Pump flow rate Real Flow is the flow due to the calibration test, if carried out, and/or the flow due to the regulation.
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Configuration 4.2.3.2 Units Select flow, pressure and proportionality units 0 0 0 SET UP 0240 CONFIGURATION DOSING PUMP PUMP CALIBRATION 0 0 0 UNITS l / h DOSING MODE FLOWMETER SET UP LOCK CODE IN / OUT MODE MODBUS UNITS Change litre/gallons by pressing and confirm by Flow...
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Configuration Change by FLOWMETER FLOWMETER FREQUENCY : pressing and confirm FREQUENCY : HIGH 010.77 / puls 010.77 puls / by pressing TIME Q=0 : TIME Q=0, Time interval (seconds) between two pulses to consider zero flow. 4.2.3.4 Lock code Blocks access to the equipment configuration, allowing the pump to start and stop. When the access code is 0000 (default value), the lock is disabled.
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Configuration – Bus: RS485 – Communication: half-duplex L(H), H(B), and GND – Baud rate: 9600 – Data bits: 8 – Parity: None – Stop bits: 1 – Hardware handshake: No – Character time out: 20 ms – Time out message end: 100 ms Important: If an RS232RS485 or similar type converter is required, make sure that the signal emitted does not produce an echo signal.
Configuration 4.2.4. Inputs/outputs 4.2.4.1 Pressure input Calibration of the 4 - 20 mA pressure transducer input. 0 0 0 0240 CONFIGURATION INPUTS PRESSURE PUMP CALIBRATION 0 0 0 FLOW DETECTOR l / h DOSING MODE OUTPUTS SET UP PULSES IN / OUT MODE 4-20mA PRESSURE INPUT...
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Configuration Set whether the pulse output is the same as the pulse input. PULSE OUTPUT With this option a second Dostec AC can be driven by the same Out = Pulse In flowmeter in proportional (%) mode. Enter the volume of product dispensed...
Configuration You can view the cycles completed by selecting each component. A negative cycle value indicates that it has exceeded the maintenance interval. When replacing a component that MAINTENANCE has reached the end of its useful Diaphragm change - 518.4k Strokes life, the cycle counter must be set VALVES Chenged?
Configuration 4.4 MONITOR 4.4.1 Real time Real-time working parameters 0 0 0 MONITOR 0240 REAL TIME 0 0 0 COUNTERS l / h INFO UNIT MODE Frequency (Hz) MOTOR MONITOR Motor voltage (V) Freq. (Hz) Current (A) Voltage OUT current (A) Temperature (°C) Temp (ºC) Imput volt...
Configuration COUNTERS Short circuit alarms Short c. Overload alarms Overload High temperature alarms Overt temp Volt range Input voltage alarms RESET COUNTERS Press to reset the cycle and volume counters ENT.. = YES ESC.. = NO not to reset them 4.4.3 Info Unit 0 0 0 MONITOR...
Installation 5. INSTALLATION 5.1. GENERAL It should be installed in a place protected from water, away from heat sources and with renovation of air. Place the pump vertically over a totally rigid surface to achieve a proper lubrication of all inner elements. Provide sufficient space to facilitate basic maintenance and installation/removal of the pump.
Installation 5.2. BLOCK Pull out the oil cap for transport, fill the pump with the SAE 80W90 oil supplied (or similar), up to the level shown by the sight glass and fit the working cap (black with an orifice). Approximate oil capacity: 650 cm³(AC3) 250 cm³...
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VENTILATION RS-485 12VF MN+M N- +2 4 +5 V H 4 - 20 mA PULSE REMOTE LEVEL 1 LEVEL 2 4 - 20 mA PULSE ALM LEVEL 4 - 20 mA Pulse input ITC controllers ITC Flowmeter External quick connectors...
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WIRING Installation FUNCTION DETAIL Inputs Encoder +12 V dc Encoder Encoder Encoder Encoder (−) Flow detector Flow detector (−) Leakage detector Leakage detector (−) Pressure transmitter + 24 V dc Pressure transmitter Pressure transmitter (−) 4 - 20 mA input analogue mode 4 - 20 mA input analogue mode (−) Proportional pulse input mode...
Installation 5.4. HYDRAULIC INSTALLATION 5.4.1. Installation examples 10 11 1. To avoid undissolved particles, never suck the product to be injected from the bottom of the tank. 2. Filter. It is essential to install a filter (150 micron) in the suction piping. 3.
Installation 5.4.2. Installation recommendations SUCTION Long suction: L> 2 m (6.5 ft) PIPE SIZE Øint L ≤ 2 m L ≤ 5 m AC1/ 2 1000 Ø 1000 Q max. (l/h) Air in suction DISCHARGE Long discharge: L> 5 m (16 ft) PIPE SIZE Øint L ≤...
Installation 5.5. ACCESSORIES 5.5.1. Diaphragm leakage detector The diaphragm leakage detector is an electrical conductivity sensor capable of detecting the presence of liquid when its conductivity is 0.05 mS or higher. The pump must be provided with the specific diaphragm flange for housing the detector.
The pulse output is a voltage free output. The isolator is not necessary when the output is connected to a 38 39 40 41 pulse input of another Dostec AC. 5.5.5. Additional ventilation 115 / 230 V This option is recommended for continuous operation at temperatures above 40 °C (104 °F) up to a maximum of 50 °C (122 °F)
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Maintenance AC3 PISTON PARTS LIST CODE DESCRIPTION QUANTITY 28054 Electric motor 1.2 kW 6P 110/190 3ph 80/100 29321 B14 Motor seal Maraz T80 29620 AC control board PCB 29622 Power board PCB 230 V ac 33429 M4 x 20 DIN 912 a-2 screw 38301 Philips M3 x 8 DIN 7985 A2 screw 60109...
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Additional ventilation 24 V dc IP56 DOSTEC AC3 29-035 Control PCB with cover DOSTEC AC 29-037 Power PCB with box AC2/3 29-057.1 PCB, encoder base and cover DOSTEC AC 29-059.1 Encoder with cover AC3 (Dostec-50) 71-029 Regulator Dostec-50 pas1 mm complete 71-030 Regulator Dostec-50 pas1.5 mm complete...
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Maintenance AC3 DIAPHRAGM PARTS LIST CODE DESCRIPTION QUANTITY 28054 Electric motor 1.2 kW 6P 110/190 3ph 80/100 29321 B14 Motor seal Maraz T80 60109 Dostec D40 regulator 60110 Regulator guide p1.5 mm Dostec 60156 d6 x 2.5 encoder magnet 60300 Miselli 26 oil peep hole 60301 Regulator knob plug 20.6...
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71321 M8 x 100 DIN 912 A2 screw ASSEMBLIES 27-051 Additional ventilation 24v D50 / EF low pressure 29-035 Control PCB with cover DOSTEC AC 29-037 Power PCB with box AC2 29-057.1 PCB and base encoder DOSTEC AC 29-059.1 Encoder AC3 (Dostec-50)
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Maintenance AC1/2 PISTON PARTS LIST CODE DESCRIPTION QUANTITY 28053 Electric motor 430 W 6P 110/190 3ph 71/65 B14 29118 Variator adapter to motor 0.5 HP 110 V 29319 Motor seal Maraz T71 60108 Regulating rod 15 Dostec 60109 Dostec 10v regulator 60110 Regulator guide p1.5 mm Dostec 60111...
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Additional ventilation 24 V dc IP56 DOSTEC AC1-2 29-035 Control PCB with cover DOSTEC AC 29-036 Power PCB with box AC1 29-057.1 PCB, encoder base and cover DOSTEC AC 29-058.1 Encoder with cover AC1-2 (Dostec-40) 60-014 Shaft guide Al Dostec-40P 60-021 Regulator Dostec-40 pitch 0.9 mm assembly...
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Variator adapter to motor 0.5 HP 110 V 29129 Advanced Control box 29131 Advanced Control lid 29132 Case seal DOSTEC AC 29202 Lexan Dostec AC 29307 M4 x 15 DIN 7991 st. steel screw 29312 O-ring 32 x 2 NBR 29315 Philips M3 x 12 DIN 7985 st.
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Maintenance 60619 608-zz (8 x 22 x 7) roller bearing 60320 Wave spring washer (21.5 x 14.5 x 0.3) 60333 M4 x 8 DIN 913 A-2 screw 61305 O-ring 85.5 x 2.4 NBR 61324 6206zz (30 x 62 x 16) roller bearing EF 62119 Cylinder spacer MF 62129...
Maintenance Before any maintenance operation check: The pump is stopped and disconnected from the power supply. There is no pressure inside the head or in the discharge pipe. It is recommended to empty the head before opening it. Maintenance personnel should use the appropriate means of protection for handling the liquid being dosed.
– Input voltage too high – Check the input voltage with a voltmeter – Internal short circuit – Contact ITC technical service AL-1 – Motor phase failure – Check the wiring between the motor and the electronic card.
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Maintenance PROBLEM CAUSE SOLUTION Voltage out of range - Supply voltage outside the - Correct the input voltage so that it is allowed range within the allowed range AL-5...
PULSE ALM LEVEL 4 - 20 mA PULSE REMOTE LEVEL 1 LEVEL 2 Black Violet Yellow Blue White 230V Encoder Violet 12v F1 F2 S - Black Yellow White 4 - 20 mA Pulse input Blue ITC controller ITC flowmeter...
Polígono Industrial Can Bernades-Subirà 08130 Santa Perpètua de Mogoda Declares that all models of DOSTEC AC products identified with serial number and year of manufacture comply with Machinery Directive 2006/42/EC, Low Voltage Directive D2014/35/ EU and Electromagnetic Compatibility Directive D2014/30/EU, provided that the installation, use and maintenance are carried out in accordance with current regulations and following the instructions in the instruction manual.
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Original Manual Ed: 06/10/2021-ES C/ Vallès, 26 Pol. Ind. Can Bernades - Subirà P.O. Box 60 08130 Santa Perpètua de Mogoda BARCELONA, SPAIN Tel. +34493 5443040 Fax +34 93 5443161 e-mail: itc@itc.es www.itc-dosing-pumps.com...
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