VMS MF
Constant dosing or dosing proportional to 4/20 mA or 0-10 V signals or to a pulse-output water meter.
- Digital constant
- Multiply
- Divide
- PPM
- Millilitres per quintal
- Percentage
- Batch
- mA
- Volt
- Timer
Solenoid dosing pumps
V and VMS Series
Diaphragm dosing pumps for swimming pools and for civil, sanitary and industrial applications. Electronic adjustment of the injection frequency.
- Up to 20 bar
- Up to 16 l/h
- Suitable for swimming pools
- Wall or floor mounting
16l/hMaximum flow rate
20barMaximum pressure
4Models
5Power supplies
4 models
Model selection
Pump head: PVDF or PP
VMS PO
With integrated controller for automatic control of pH or Redox (ORP).
- Proportional to pH
- Proportional to Redox
Compatible components
EpHSpH electrode
ERhSRedox (ORP) electrode
Pump head: PVDF or PP
VCL
For constant dosing, with input for tank level control.
- Constant
- Constant with divider
Pump head: PVDF or PP
VCO
Basic model for constant dosing without external controls.
- Constant
- Constant with divider
Pump head: PVDF or PP
Selection guide
Which model to choose
State how the pump must dose, the product, the flow rate and the back pressure: the guide proposes the most suitable model and configuration of the series, among those listed in the technical data.
Answer the questions and enter flow rate and back pressure: the recommended model appears below.
Overview
Model comparison
| Function | MF | PO | VCL | VCO |
|---|---|---|---|---|
| Dosing modes | ||||
| Constant | – | – | ● | ● |
| Constant with divider | – | – | ● | ● |
| Digital constant | ● | – | – | – |
| Multiply | ● | – | – | – |
| Divide | ● | – | – | – |
| PPM | ● | – | – | – |
| Millilitres per quintal | ● | – | – | – |
| Percentage | ● | – | – | – |
| Batch | ● | – | – | – |
| mA | ● | – | – | – |
| Volt | ● | – | – | – |
| Proportional to pH | – | ● | – | – |
| Proportional to Redox | – | ● | – | – |
| Timer | ● | – | – | – |
| Functions | ||||
| Electronic flow rate adjustment | ● | ● | ● | ● |
| Digital display | ● | ● | – | – |
| Level control | ● | ● | ● | – |
| Stand-by | – | ● | – | – |
| Alarm output | – | ● | – | – |
Operation
Dosing modes
Constant
The pump doses at a constant injection frequency, proportional to the flow rate percentage set with the analogue selector (0 – 100%).
Models: VCL, VCO
Constant with divider
Operation similar to constant dosing, with the selector adjustable between 0 and 10%: the maximum flow rate is reduced to as little as 1/10 of the rated value.
Models: VCL, VCO
Digital constant
The pump doses at a constant frequency, determined by the SPH (strokes/hour), SPM (strokes/minute) or LPH (litres/hour) values set during programming.
Models: VMS MF
Multiply
The pulses from the pulse-output water meter are multiplied by the set factor.
Models: VMS MF
Divide
The pulses from the pulse-output water meter are divided by the set factor.
Models: VMS MF
PPM
Dosing is calculated from the pulses of the pulse-output water meter and the set PPM value; the concentration of the chemical and the volume per stroke can be programmed.
Models: VMS MF
Millilitres per quintal
Dosing is calculated from the pulses of the pulse-output water meter and the set MLQ value (millilitres per quintal).
Models: VMS MF
Percentage
Dosing is calculated from the pulses of the pulse-output water meter and the set percentage (%).
Models: VMS MF
Batch
A pulse from an external contact starts the dosing of the set quantity; pause and work cycles can be programmed.
Models: VMS MF
mA
The 0-4/20 mA current signal controls dosing proportionally, between the set minimum and maximum values.
Models: VMS MF
Volt
The 0-10 V voltage signal controls dosing proportionally, between the set minimum and maximum values.
Models: VMS MF
Proportional to pH
The required pH value (SET POINT) is set: the pump measures the pH by means of a pH electrode and progressively reduces the injection frequency as the set value approaches, stopping when the SET POINT is reached.
Models: VMS PO
Proportional to Redox
The required Redox potential (ORP) (SET POINT) is set: the pump measures it by means of a Redox electrode and progressively reduces the injection frequency as the set value approaches, stopping when the SET POINT is reached.
Models: VMS PO
Timer
Up to 16 weekly on/off timers can be programmed, during which the pump doses the set quantity of chemical.
Models: VMS MF
Technical data
Performance and configurations
Performance varies with the working back-pressure (head) and with the characteristics of the chemical: for this reason the V and VMS pumps are available in specific configurations.
Manual air bleed
Suitable for most chemicals: the standard configuration for the most common applications.
| Code | Max pressure (bar) | Max flow rate (l/h) |
|---|---|---|
| VMS 2001 | 20 | 1 |
| VMS 1802 | 18 | 2 |
| VMS 1804 | 18 | 4 |
| VMS 1502 | 15 | 2 |
| VMS 1504 | 15 | 4 |
| VMS 1505 | 15 | 5 |
| VMS 1004 | 10 | 4 |
| VMS 1005 | 10 | 5 |
| VMS 1010 | 10 | 10 |
| VMS 0706 | 7 | 6 |
| VMS 0501 | 5 | 1 |
| VMS 0510 | 5 | 10 |
| VMS 0512 | 5 | 12 |
| VMS 0408 | 4 | 8 |
| VMS 0310 | 3 | 10 |
| VMS 0215 | 2 | 15 |
| VMS 0116 | 1 | 16 |
Automatic air bleed
Required with chemicals that release gas (e.g. peroxides), to prevent the pump from becoming air-locked.
| Code | Max pressure (bar) | Max flow rate (l/h) |
|---|---|---|
| VMSA 1802 | 18 | 2 |
| VMSA 1501 | 15 | 1 |
| VMSA 1503 | 15 | 3 |
| VMSA 1000,5 | 10 | 0.5 |
| VMSA 1003,4 | 10 | 3.4 |
| VMSA 0704 | 7 | 4 |
| VMSA 0507,5 | 5 | 7.5 |
| VMSA 0509 | 5 | 9 |
| VMSA 0405,5 | 4 | 5.5 |
| VMSA 0307 | 3 | 7 |
| VMSA 0212 | 2 | 12 |
| VMSA 0113 | 1 | 13 |
Power supply options
- 230 VAC
- 110 VAC
- 24 VAC
- 24 VDC
- 12 VDC
Pump head materials
PVDF
Suitable for most acids, for peroxides and for sodium hypochlorite (chlorine).
PP
Suitable for sodium hydroxide (caustic soda).
Special versions
Special versions
In addition to the standard configuration, versions dedicated to particular applications are available; the performance of each is given in the technical data. The pages by application compare the suitable pumps of all the series.
VA and VMSA Series
Self-venting pump head, required with chemicals that release gas (e.g. sodium hypochlorite and peroxides): it vents the gas and prevents the pump from locking.
Technical support
Troubleshooting and error messages
The most frequent causes of malfunction and the corrective actions to check before contacting technical support.
Insight: the pump does not prime and does not dose →If the pump…
The pump strokes normally, but the chemical is not dosed
- Air in the hydraulic circuitCheck fittings and tubing, tighten any loose ones and bleed the air.
- Suction tube emptiedThe pump has lost its prime: repeat the priming procedure.
- Foot filter cloggedRemove the lance or filter from the tank and clean it.
- Gas released by the chemicalOpen the bleed valve to discharge the gas; if this recurs, fit a self-bleeding pump head.
No strokes, or weak and damped stroke
- Valve balls blocked by crystallisation of the chemicalClean the valves and run the pump with 2 – 3 litres of water instead of the chemical; if the problem persists, replace the valves.
- Injection valve cloggedReplace the injection valve.
The pump does not switch on
- No power supplyCheck the mains connection and that the voltage matches the rated value.
- Protection fuse blownReplace the fuse with one of the same rating.
- Faulty circuit boardThe board must be replaced: contact our technical support service.
Display of the VMS MF
| Message | Meaning | Action |
|---|---|---|
| ALARM LEVEL | Product exhausted in the tank. | Refill the tank. |
| OVER FLOW | The required working frequency exceeds the rated frequency. | Check the data set and the pump flow rate, then switch the pump off and on again. |
| ALARM STROKE | The set flow rate exceeds the rated flow rate. | Check the data set and the flow rate, then switch the pump off and on again. |
| ALARM POWER | The power supply is outside the permitted values. | Check that the voltage matches the rating plate data, then switch the pump off and on again. |
| ALARM BATCH | Batch dosing was interrupted because the external contact changed state. | Check that the connected contact matches the pump setting, then switch the pump off and on again. |
| INPUT OPEN | In mA or Volt mode the input signal is missing. | Check the external signal and its connection. |
| ERROR DATA | The values entered are not consistent. | Check the values; if they are correct and the error persists, the pump is undersized for the required dosing. |
| ERROR MEM | Error in the settings memory. | Restore the factory values with the reset procedure. |
| WRONG ENTRY | Invalid setting, for example the same value for the minimum and the maximum of the signal. | Set distinct, correct values. |
| Incorrect password | The password entered does not match the stored one. | Contact us to unlock it. |
The # symbol on the display indicates one or more active alarms, which can be viewed on the ALARM QTY screen.
LEDs of the VCO and VCL
| LED | Meaning | Action |
|---|---|---|
| Red, 3 flashes per second | Mains voltage too low. | Check the power supply. |
| Red, 2 flashes per second | Mains voltage too high. | Check the power supply. |
| Steady red | Level alarm: chemical run out (VCL). | Restore the chemical level in the tank. |
| Green, goes off at each stroke | Pump running, normal frequency. | No action required. |
| Orange, goes off at each stroke | Pump running, frequency divided by 10. | No action required. |
| Flashing every 2 seconds | Pump OFF, powered (green; orange in divide mode). | No action required. |
In the 12 – 24 V versions the LED is green only, with the same sequences.
Flow rate between 30 and 100%
Adjustment is linear between 30 and 100%: below 30% the actual flow rate may differ from the expected one and must therefore be checked.
Priming
Connect all the tubing, open the bleed valve and set the adjustment to 100%; start the pump and close the bleed valve as soon as the chemical comes out. With viscous liquids the operation can be assisted with a 20 cc syringe applied to the bleed port.
If the problem persists, contact us. Before sending the pump for servicing, empty the pump head of chemical and dry it.
Summary
Main features
Electronic flow rate adjustment
According to the operating mode and the set parameters, the pump automatically adapts the injection frequency to ensure the required dosing.
Digital display
The integrated LCD display allows the pump to be programmed and its operating status to be monitored at all times.
Models: VMS MF, VMS PO
Level control
The pump is supplied with a low-level probe for the tank: when the chemical runs out, it shows the alarm on the display and activates the corresponding output.
Models: VMS MF, VMS PO, VCL
Stand-by
Pump start and stop can be controlled remotely by means of a run/stop contact from a PLC or another source.
Models: VMS PO
Alarm output
In the event of a fault, a volt-free contact is activated, configurable as normally open (N.O.) or normally closed (N.C.), to drive a visual or audible signalling device, send an SMS or report the event to a PLC.
Models: VMS PO
Technical advice
Tell us about your application: our technical staff will recommend the most suitable model, configuration and accessories.