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ENGLISH  (Translated from Italian)

ENGLISH  (Translated from Italian)

ENGLISH  (Translated from Italian)

ENGLISH  (Translated from Italian)

ENGLISH  (Translated from Italian)

ENGLISH  (Translated from Italian)

SB325M

MANUALE D’USO, MANUTENZIONE 

E CALIBRAZIONE

Bulletin    M0220B IT-EN_00

IT

SUZZARABLUE 

AUTOMATIC 

NOZZLE METER

USE, CALIBRATION  

AND MAINTENANCE MANUAL

EN

INDEX

DECLARATION OF CONFORMITY

GENERAL WARNINGS

FIRST AID RULES

GENERAL SAFETY RULES

TO KNOW SB325 M

 

E1 

INTENDED USE

F PACKAGING 

TECHNICAL CHARACTERISTICS

H INSTALLATION

USE MODALITY

 

I1 

MECHANICAL CHARACTERISTICS

 

I2 

ELECTRONIC CHARACTERISTICS

MISFILLING (optional)

PRELIMINARY CHECK

INITIAL START UP

 

O1 

USER BUTTONS

 

O2 

BATTERY HOUSING

DAILY USE

 

P1 

DISPENSING IN NORMAL MODE

 

 

P1.1 

PARTIAL RESET (NORMAL MODE)

 

 

P1.2 

RESETTING THE RESET TOTAL

 

P2 

DISPENSING WITH FLOW RATE MODE DISPLAY

 

 

P2.1 

PARTIAL RESET (FLOW RATE MODE)

Q CALIBRATION

 

Q1 

WHY CALIBRATE?

  Q2 DEFINITIONS

 

Q3  

KEY

 

Q4 

CALIBRATION MODE

 

 

Q4.1 

DISPLAY OF CURRENT CALIBRATION FACTOR AND 

   RESTORING 

FACTORY 

FACTOR.

 

 

Q4.2 

IN FIELD CALIBRATION

 

 

     Q4.2.1 

IN-FIELD CALIBRATION PROCEDURE

 

 

Q4.3  

DIRECT MODIFICATION OF K FACTOR

METER CONFIGURATION

S MAINTENANCE

T MALFUNCTIONS

 

T1 

MECHANICAL MALFUNCTIONS

 

T2 

 ELECTRONIC MALFUNCTIONS

TECHNICAL DATA

V DISPOSAL

Z DIMENSIONS

A  DECLARATION OF CONFORMITY

The undersigned:

PIUSI S.p.AVia Pacinotti 16/A z.i.Rangavino

46029 Suzzara - Mantova -  Italy

HEREBY STATES

under its own responsibility, that the equipment described below:

Descriprion: Dispenser nozzle featuring integrated mete

Model: SB325 M

Serial number: refer to Lot Number shown on CE plate affixed to productYear of manufacture: refer to the 

year of production shown on the CE plate affixed to the productis in conformity with the legal provisions 

indicated in the directives : 

- Electromagnetic Compatibility Directive 2004/108/EC  

The documentation is at the disposal of the competent authority following motivated request at Piusi 

S.p.A. or following request sent to the email address: [email protected] person authorised to compile 

the technical file and draw up the declaration is Otto Varini as legal representative.

 

 

    

 

Suzzara, 

01/01/2012 

  Otto 

Varini

 

 

    legal 

representative.

B  GENERAL WARNINGS

Important 

precautions

To ensure operator safety and to protect the pump from 

potential damage, workers must be fully acquainted 

with this instruction manual before performing any 

operation. 

Symbols used 

in the manual

The following symbols will be used throughout the 

manual to highlight safety information and precautions 

of particular importance:

ATTENTION

This symbol indicates safe working practices for operators 

and/or potentially exposed persons.

WARNING

This symbol indicates that there is risk of damage to the equip-

ment and/or its components.

NOTE

This symbol indicates useful information.

Manual preser-

vation

This manual should be complete and legible 

throughout. It should remain available to end users and 

specialist installation and maintenance technicians for 

consultation at any time.

Reproduction 

rights

All reproduction rights are reserved by Piusi S.p.A.  The 

text cannot be reprinted without the written permis-

sion of Piusi  S.p.A.

© Piusi S.p.A.

THIS MANUAL IS THE PROPERTY OF PIUSI S.p.A.

ANY REPRODUCTION, EVEN PARTIAL, IS FORBIDDEN.

C  FIRST AID RULES

Contact with the 

product

In the event of problems developing following EYE/SKIN CONTACT, 

INHALATION or INGESTION of the treated product, please refer  to the 

SAFETY DATA SHEET of the fluid handled

.

NOTE

Please refer to the safety data sheet for the product

SMOKING 

PROHIBITED

When operating the dispensing system and in particular during refuel-

ling, do not smoke and do not use open flame.

WARNING

Keep the product to be dispensed away from eyes and skin
Keep the product to be dispensed out of reach of children
The nozzle must only be used for the purposes for which it was designed
Using unsuitable component parts and materials could be hazardous
Not checking correct part installation could be hazardous.

D  GENERAL SAFETY RULES

Essential protec-

tive equipment 

characteristics

Wear protective equipment that is:

•  suited to the operations that need to be performed;

•  resistant to cleaning products.

ATTENTION

It is a good practice to consider the instructions manual as 

an integral part of the purchased product. Always keep the 

instructions manual nearby the product.  

Personal protec-

tive equipment 

that must be worn

Wear the following personal protective equipment during handling 

and installation:

safety shoes;

close-fitting clothing;

protective gloves;

safety goggles;;

Protective gloves

Prolonged contact with the treated product may cause skin irritation; 

always wear protective gloves during dispensing.

ATTENTION

Do not proceed to dispense if the suction/supply hose, the nozzle or 

the safety devices are damaged. 

E  TO KNOW SB325 M

FOREWORD

Dispenser nozzle featuring integrated meter, made of non-conduc-

tive plastic and designed for use with water/urea solution (AUS32/

DEF).  The meter integrated with the SB325 M nozzle uses a turbine 

measuring system and interfaces with the user by means of the LCD 

display. SB325 M is also compatible with water and food liquids..

E1 INTENDED  USE

SB325 M

WATER/UREA SOLUTION - D.E.F. - AUS 32, ACCORDING TO DIN 70070, WATER, 

WINDSCREEN

CONDITIONS 

OF USE AND 

ENVIRONMENTAL 

CONDITIONS

Refer to the product technical sheets

F  PACKAGING

FOREWORD

THE NOZZLES ARE SUPPLIED PACKED IN CARDBOARD BOXES, WITH LA-

BEL SHOWING FOLLOWING DETAILS:

1 - Package contents

SB325 M

2 - Weight

3 - Product description

G  TECHNICAL CHARACTERISTICS

Description

M

in. flo

w

-ra

te (l/min)

M

ax. flo

w

-ra

te

(l/min)

Pr

essur

e loss a

t 35 l/

min (bar)

Inlet thr

ead with

 

swiv

el

Ex

ternal diamet

er

 

hose

-end 

fitting

  

(mm)

M

ax. op

er

ating pr

es

-

sur

e (bar)

W

eigh

t (K

g)

SB32 M

15

45

0.9

1” GAS

20

3.5

0,8

H INSTALLATION

FOREWORD

The automatic nozzles are supplied ready for use.

The nozzle features SWIVEL hose-end fitting (complete with O-ring) 

useful for connecting to the supply hose.

TO ENSURE PERFECT OPERATION, THE DEVICE MUST BE USED TO 

DISPENSE FLUIDS WITH CHARACTERISTICS FALLING WITHIN THE 

FOLLOWING PARAMETERS:

- Qmin .: 15 l/min 

- Qmax:  45 l/min

- Pmin.  :  1,5 bar 

- Pmax:   3,5 bar

ATTENTION

During installation, use adequate sealants, being careful no 

residues remain inside the hose.
So as not to negatively affect product operation, couple the hose-end 

fitting with the hose without using tools such as pliers, etc.

Assembly will be easier if the swivel hose-end fitting is already fitted 

on the nozzle.

Make sure the hoses and the suction tank are without threading  scale or 

residues which could damage the nozzle and the accessories.

WARNING

Apply adequate sealants on the male threads of the connec-

tions and swivels

Do not use Teflon tape

NO TEFLON TAPE

I  USE MODALITY

I1 MECHANICAL CHARACTERISTICS

FOREWORD

The main feature of these nozzles is that they are easy to use. 

Two operating modes are available:

1

ASSISTED MODE

Dispense by operating the nozzle lever. To interrupt dispensing man-

ually, release the lever.

2

AUTOMATIC MODE

Use the opening lever lock device for automatic dispensing.

To continue dispensing after automatic stop, the lever must be fully 

released before proceeding to operate it again.  

To interrupt dispensing in manual mode, press the lever again, there-

by releasing the device, and then release.

ATTENTION

DO NOT USE THE NOZZLE OUTSIDE THE PARAMETERS INDI-

CATED ON THE ”TECHNICAL SPECIFICATIONS”  CHART

Dispensing is automatically interrupted thanks to the 

shut-off device, which operates when the level of the liquid 

reaches the end of the spout.

I2 ELECTRONIC CHARACTERISTICS

ATTENTION

The user can choose between two different operating 

modes: 

1 - Normal Mode

Normal Mode: Mode with display of Partial and Total dispensed quantities

2 - Flow rate Mode

Flow Rate Mode: Mode with display of Flow Rate, as well as Partial 

dispensed quantity.

Note

The meter features a non-volatile memory for storing the dispensing 

data, even in the event of a complete power break for long periods.  The 

measurement electronics and the LCD display are fitted in the top part 

of the meter which remains isolated from the fluid-bath measurement 

chamber and sealed from the outside by means of a cover.

L  MISFILLING (optional)

PREMISE

Refuelling with the nozzle equipped with “magnet switch” is 

only possible in combination with the “magnet adapter” , so 

misfuelling into tanks is made impossible

OPERATION

The “magnet switch” is a fixed magnetic field within the filler necks of 

the nozzle. This opens the magnet switch in the spout, so it is only pos-

sible to dispense from the tank where the magnet adaptor is installed.

ATTENTION

Nozzles equipped with “magnet switch” work only in combi-

nation with the “magnet adapter”. The “magnet adapter” is 

an optional to be bought separately.

M  PRELIMINARY CHECK

WARNING

Check the correct operation of the lock device, according to the fol-

lowing procedure:

1 Take a graduated  receptacle with a capacity of 20 litres (5 gal)

LOW 

CLIP

2 Begin dispensing into the receptacle, setting the lever in the mini-

mum flow position, until the receptacle is full.

5 cm

3 Keeping the lever open, make sure the spout is submerged by about 

5 cm (2 inches).

4 The nozzle must stop, with a click of the lever.

MEDIUM 

CLIP

HIGH CLIP

5 Repeat the same operations with the lever in medium-flow and 

maximum-flow position.

Check the correct operation of the stop device as described above. 

6 If the nozzle stops during dispensing, check and reduce the flow.

If the shut-off device does not begin to operate, check the minimum 

flow rate of the system or replace the nozzle.

N  INITIAL START UP

FOREWORD

Only start dispensing after making sure that assembly and installa-

tion have been correctly performed.

ATTENTION

It is a good practice to only operate the nozzle lever after 

making sure the spout has been properly inserted in the 

mouth of the tank to be filled.

NOTE

When using for the first time and every time the nozzle is used, fol-

lowing the connection of the supply hose, gently operate the lever 

to enable the air to escape from the circuit, until normal operation 

is achieved.

ATTENTION

Check the correct operation of the automatic stop device 

once the tank is full.

THE FAULTY OPERATION OF THIS DEVICE COULD CAUSE THE 

SPILL OF LIQUIDS THAT ARE HAZARDOUS FOR PEOPLE AND 

THE ENVIRONMENT.

O  WHAT IT LOOKS LIKE

FOREWORD

The “LCD” of the METER features two numerical registers and various 

indications displayed to the user only when the applicable function 

so requires.

1 Partial register (5 figures with moving comma 

FROM 0.1 to 99999) indicating the volume dis-

pensed since the reset button was last pressed

4

5

6

9

7

1

2

3

8

2 Indication of battery charge
3 Indication of calibration mode
4 Totals register (6 figures with moving comma FROM 

0.1 to 999999), that can indicate two types of Total:

4.1.  General Total that cannot be reset (TOTAL)

4.2.  Resettable total (Reset TOTAL)

5 Indication of total multiplication factor (x10  /  x100 )

6

Indication of type of total, (TOTAL / Reset TOTAL);

7 Indication of unit of measurement of Totals: 

L=Litres Gal=Gallons

8

Indication of Flow Rate mode

 

9 Indication of unit of measurement of Partial:  

Qts=Quarts    

Pts=Pints 

L=Litres      

Gal=Gallons

O1  USER BUTTONS

FOREWORD

The METER features two buttons (RESET and CAL) which individually perform two 

main functions and, together, other secondary functions.

MAIN FUNCTIONS 

PERFORMED

- for the RESET key, resetting the partial register and Reset Total 

- for the CAL key, entering instrument calibration mode

SECONDARY

FUNCTIONS

Used together, the two keys permit entering configuration mode where the de-

sired unit of measurement can be set.

LEGEND

CALIBRATE MEANS PERFORMING ACTIONS ON THE METER KEYS.  BELOW IS THE 

LEGEND OF THE SYMBOLS USED TO DESCRIBE THE ACTIONS TO BE PERFORMED

O2  BATTERY HOUSING

NOTE

K24 is powered by two 1.5V standard type batteries (size AAA).  The 

battery housing is easily accessible and is closed by a cover with seal. 

Everything is easily removable by taking off the rubber protection 

around the nozzle and loosening the screws which secure the cover.

P  DAILY USE

FOREWORD

The only operations that need to be done for daily use are partial and/or reset-

table total register resetting.  The user should use only the dispensing system of 

k24.  Occasionally the meter may need to be configured or calibrated. To do so, 

please refer to the relevant chapters.

Below are the two typical normal operation displays.   One display page shows the partial and reset total 

registers. The other shows the partial and general total. Switchover from resettable total to general total 

display is automatic and tied to phases and times that are in factory set and cannot be changed.

Note

6 digits are available for Totals, plus two icons  x 10 / x100. The incre-

ment sequence is the following:

0.0 -> 99999.9 -> 999999 -> 100000 x 10 -> 999999 x 10 ->100000 x 

100 -> 999999 x 100

P1  DISPENSING IN NORMAL MODE

FOREWORD

Normal mode is the standard dispensing. While the count is made, the partial and 

resettable total are displayed at the same time (reset total).

WARNING

Should one of the keys be accidentally pressed during dispensing, 

this will have no effect. 

stand by

A few seconds after dispensing has ended, on the lower register, the display 

switches from resettable total to general total: the word reset above the word 

total disappears, and the reset total is replaced by the general total. This situa-

tion is called standby and remains stable until the user operates the k24 again.

P1.1 

PARTIAL RESET (NORMAL MODE)

The partial register can be reset by pressing the reset key when the 

meter is in standby, meaning when the display screen shows the 

word “TOTAL”.

After pressing the reset key, during reset, the display screen first of 

all shows all the lit-up digits and then all the digits that are not lit up. 

At the end of the process, a display page is first of all shown with the 

reset partial and the reset total

and, after a few moments, the reset total is replaced by the non reset-

tableTotal.

P1.2 

RESETTING THE RESET TOTAL

The reset total resetting operation can only be performed after reset-

ting the partial register. The reset total can in fact be reset by pressing 

the reset  key at length while the display screen shows  reset total  as 

on the following display page:

Schematically, the steps to be taken are:
1 Wait for the display to show normal standby display page  (with 

total only displayed)

2 Press the reset key quickly
3  The meter starts to reset the partia
4 While the display page showing the reset total is displayed
Press the reset key again for at least 1 second

5

The display screen again shows all the segments of the display 

followed by all the switched-off segments and finally shows 

the display page where the reset Reset Total is shown.

P2 DISPENSING WITH FLOW RATE MODE DISPLAY

It is possible to dispense fluids, displaying at the same time::
1 the dispensed partial
2 the Flow Rate in [Partial Unit / minute] as shown on the following 

display page:

Procedure for entering this mode:
1 wait for the Remote Display to go to Standby, meaning the display screen shows Total only
2 quickly press the CAL key.

3 Start dispensing
The flow rate is updated every 0.7 seconds. Consequently, the display could be relatively unstable at 

lower flow rates. The higher the flow rate, the more stable the displayed value. 
ATTENTION

The flow rate is measured with reference to 

the unit of measurement of the Partial. For 

this reason, in case of the unit of measure-

ment of the Partial and Total being dif-

ferent, as in the example shown below, it 

should be remembered that the indicated 

flow rate relates to the unit of measure-

ment of the partial. In the example shown, 

the flow rate is expressed in Qts/min.

The word “Gal” remaining alongside the flow rate refers to the register of the To-

tals (Reset or NON Reset)  which are again displayed when exiting from the flow 

rate reading mode.  

To return to “Normal” mode, press the CAL key again.  If one of the two keys RESET 

or CAL is accidentally pressed during the count, this will have no effect.

ATTENTION

Even though in this mode they are not displayed, both the Reset Total 

and the General Total (Total)  increase. Their value can be checked 

after dispensing has terminated, returning to “Normal” mode, by 

quickly pressing CAL.

P2.1 

PARTIAL RESET (FLOW RATE MODE)

To reset the Partial Register, finish dispensing and wait for the Remote 

Display to show a Flow Rate of 0.0 as indicated in the illustration

then quickly press RESET

Q CALIBRATION

Q1  WHY CALIBRATE?

Note

When working in extreme operating or flow conditions, (close to 

minimum or maximum acceptable range values), it may be a good 

idea to calibrate in the field, in the real conditions in which the 

SB32 M  has to work..

Q2 DEFINITIONS

CALIBRATION FAC-

TOR OR 

“K FACTOR” 

Multiplication factor applied by the system to the electrical pulses received, to 

transform these into measured fluid units.

FACTORY K 

FACTOR

Factory-set default factor. It is equal to 1,000. This calibration factor ensures ut-

most precision in the following operating conditions:

Fluid 

           water/urea solution or liquid food products Temperature:          

20°C

Flow rate:         10 - 30 ltr/min

Even after any changes have been made by the user, the factory k factor can be 

restored by means of a simple procedure.

USER K FACTOR:

Customized calibration factor, meaning modified by calibration.

Q3   KEY

LEGEND

CALIBRATE MEANS PERFORMING ACTIONS ON THE METER KEYS.  BELOW IS THE 

LEGEND OF THE SYMBOLS USED TO DESCRIBE THE ACTIONS TO BE PERFORMED

SHORT 

PRES-

SURE OF 

CAL KEY

CAL

LONG 

PRES-

SURE OF 

cal KEY

CAL

CAL

CAL

short 

pressure 

of reset 

key

RESET

long 

pressure 

of reset 

key

RESET

RESET

RESET

Q4  CALIBRATION MODE

Why calibrate?

1

Display the currently used calibration factor:

2

Return to factory calibration (Factory K Factor) after a previous cali-

bration by the user

3

Change the calibration factor using one of the two previously indi-

cated procedures

FOREWORD

Two procedures are available for changing the Calibration Factor:
1

In-Field Calibration, performed by means of a dispensing operation

2

Direct Calibration, performed by directly changing the calibration factor

In calibration mode, the partial and total dispensed quantities indicated on the display screen take on 

different meanings according to the calibration procedure phase. 

In calibration mode, the K24 cannot be used for normal dispensing operations.

In “Calibration” mode, the totals are not increased

ATTENTION

The K24 features a non-volatile memory that keeps the data 

concerning calibration and total dispensed quantity stored for 

an indefinite time, even in the case of a long power break; after 

changing the batteries, calibration need not be repeated.

Q4.1 

DISPLAY OF CURRENT CALIBRATION 

FACTOR AND RESTORING FACTORY FACTOR.

CAL

CAL

CAL

By pressing the CAL key while the appliance is in 

Standby, the display page appears showing the 

current calibration factor used.   If no calibration 

has ever been performed, or the factory setting 

has been restored after previous calibrations, 

the following display page will appear: The 

word “Fact”  abbreviation for “factory” shows 

that the factory calibration factor is being used

If, on the other hand, calibrations have been 

made by the user, the display page will appear 

showing the currently used calibration factor ( in 

our example 0,998) . The word “user” indicates a 

calibration factor set by the user is being used..

CAL

The flow chart alongside shows 

the switchover logic from one 

display page to another

In this condition, the Reset key 

permits switching from User fac-

tor to Factory factor.

To confirm the choice of cali-

bration factor, quickly press 

CAL while “User” or “Fact” are 

displayed.

After the restart cycle, the K24 

uses the calibration factor that 

has just been confirmed

CAL

CAL

CAL

CAL

RESET

RESET

TIME OUT

ATTENTION

When the Factory Factor is confirmed, the old User factor is 

deleted from the memory

  Q4.2 

IN FIELD CALIBRATION

FOREWORD

This procedure calls for the fluid to be dispensed into a graduated sample con-

tainer in real operating conditions  ( flow rate,  viscosity,  etc.) requiring maximum 

precision. 

ATTENTION

For correct K24 calibration, it is most important to:

1

When the Factory Factor is confirmed, the old User factor is deleted from the 

memory

2

use a precise Sample Container with a capacity of not less than 5 litres, featuring 

an accurate graduated indicator.

3

ensure calibration dispensing is done at a constant flow rate equivalent to that of 

normal use, until the container is full;

4

Not reduce the flow rate to reach the graduated area of the container during 

the final dispensing stage (the correct method during the final stages of sample 

container filling consists in making short top-ups at normal operation flow rate) ;

5

after dispensing, wait a few minutes to make sure any air bubbles are eliminated 

from the sample container; only read the Real value at the end of this stage, dur

-

ing which the level in the container could drop.

6

Carefully follow the procedure indicated below.

Q4.2.1 

IN-FIELD CALIBRATION PROCEDURE

ACTION

DISPLAY

1

NONE

NEXT in Standby

CAL

CAL

CAL

LONG CAL key keying

The NEXT enters calibration mode, shows <<CAL>> and displays 

the calibration factor in use instead of partial. The words “Fact” and 

“USER” indicate which of the two factors (factory or user) is currently 

in use.

Important: This factor is that which the instrument also uses for field 

calibration measurement operations

RESET

RESET

RESET

LONG RESET key keying

The NEXT shows “CAL” and the partial at zero. The NEXT is ready to 

perform in-field calibration.

4

DISPENSING INTO SAMPLE CONTAINER

Without pressing any key, start dispensing into the sample container 

 

Dispensing can be interrupted and started again at will. Continue 

dispensing until the level of the fluid in the sample container has 

reached the graduated area. There is no need to reach a preset 

quantity. 

 

  

 

Indicated value            Real value

5  

RESET

SHORT RESET key keying

The NEXT is informed that the calibration dispensing operation is 

finished.  

Make sure dispensing is correctly finished before performing this operation.  

To calibrate the NEXT, the value indicated by the partial totaliser (example 

9.800) must be forced to the real value marked on the graduated sample 

container. In the bottom left part of the display an arrow appears (upwards 

and downwards), that shows the direction (increase or decrease) of the value 

change displayed when the following operations 6 or 7 are performed.

6  

RESET

SHORT RESET key keying

The arrow changes direction. The operation can be repeated to 

alternate the direction of the arrow. 

7

CAL

CAL

CAL

CAL

SHORT/LONG CAL key keying

The indicated value changes in the direction indicated by the arrow

-  one unit for every short CAL key keying 

-  continually if the CAL key is kept pressed. The speed increase rises 

by keeping the key pressed.  If the desired value is exceeded, repeat 

the operations from point (6).

RESET

RESET

RESET

                 

LONG RESET key keying

The NEXT is informed that the calibration procedure is finished.

Before performing this operation, make sure the INDICATED value is 

the same as the REAL value.

.

 

  

 

  Indicated value            Real value

The NEXT calculates the new USER K FACTOR ; this calculation could 

require a few seconds, depending on the correction to be made

ATTENTION:  If this operation is performed after action (5), without 

changing the indicated value, the USER K FACTOR would be the 

same as the FACTORY K FACTOR, thus it is ignored. 

9

              

NO OPERATION

At the end of the calculation, the new USER K FACTOR is shown for 

a few seconds, after which the restart cycle is repeated to finally 

achieve standby condition.

IMPORTANT: From now on, the indicated factor will become the 

calibration factor used by the NEXT and will continue to remain 

such even after a battery change 

10

NO OPERATION

The NEXT stores the new work calibration factor and is ready to 

begin dispensing, using the USER K FACTOR that has just been 

calculated..

Q4.3  

DIRECT MODIFICATION OF K FACTOR

If normal NEXT operation shows a mean percentage error, this can be corrected by applying to the cur-

rently used calibration factor a correction of the same percentage. In this case, the percentage correction 

of the USER  K FACTOR must be calculated by the operator in the following way

New cal. Factor    =    Old Cal Factor  *  

(        )

100 - E%

100

Example:

Error percentage found:   E% - 0.9 %
CURRENT calibration factor:  1.000
New USER K FACTOR:          1.000 * [(100 – ( - 0.9))/100] = 1.000 * [(100 + 0.9)/100] = 1.009
If the NEXT indicates less than the real dispensed value (negative error) the new calibration factor 

must be higher than the old one as shown in the example. The opposite applies if the NEXT shows 

more than the real dispensed value (positive error).
ACTION

DISPLAY

1

NONE

METER  in Standby.

CAL

CAL

CAL

LONG CAL KEY KEYING

NEXT enters calibration mode, shows  “CAL” and displays the 

calibration factor being used instead of the partial. The words “Fact” 

and “User” indicate which of the two factors (factory or user) is 

currently being used.

RESET

RESET

RESET

LONG RESET KEY KEYING

The NEXT shows “CAL” and the zero partial total.

NEXT is ready to perform in-field calibration by dispensing – see 

previous paragraph.

RESET

RESET

RESET

LONG RESET KEY KEYING

We now go on to Direct change of the calibration factor: the word 

“Direct” appears together with the Currently Used calibration factor.  

In the bottom left part of the display, an arrow appears (upwards 

or downwards) defining the direction (increase or decrease) of 

change of the displayed value when subsequent operations 5 or 6 

are performed.

RESET

SHORT RESET KEY KEYING

Changes the direction of the arrow. The operation can be repeated 

to alternate the direction of the arrow. 

CAL

CAL

CAL

CAL

SHORT/LONG CAL KEY KEYING

The indicated value changes in the direction indicated by the arrow

-  one unit for every short CAL key keying 

-  continually if the CAL key is kept pressed. The speed increase rises 

by keeping the key pressed.  If the desired value is exceeded, repeat 

the operations from point (5).

RESET

RESET

RESET

LONG RESET KEY KEYING

The NEXT is informed that the calibration procedure is finished.

Before performing this operation, make sure the INDICATED value 

is that required.

8

                 

NO OPERATION

At the end of the calculation, the new USER K FACTOR is shown for 

a few seconds, after which the restart cycle is repeated to finally 

achieve standby condition.

IMPORTANT: From now on, the indicated factor will become the 

calibration factor used by the NEXT and will continue to remain 

such even after a battery change 

9

NO OPERATION

The NEXT stores the new work calibration factor and is ready to 

begin dispensing, using the USER K FACTOR that has just been 

changed.

R  METER CONFIGURATION

The METER feature a menu with which the user can select the main measurement unit, Quarts (Qts), Pints 

(Pts), Litres (Lit), Gallons (Gal);  The combination of the unit of measurement of the Partial register and that 

of the Totals is predefined according to the following table:

Combination no.

Unit of Measurement

Partial Register

Unit of Measurement

Totals Register

1

Litres  (L)

Litres (L)

2

Gallons (Gal)

Gallons  (Gal)

3

Quarts (Qts)

Gallons (Gal)

4

Pints (Pts)

Gallons (Gal)

To choose between the 4 available combinations:

1

Wait for the METER to go to Standby

then press the CAL and RESET keys together. Keep these pressed un-

til the word “UNIT” appears on the screen together with the unit of 

measurement set at that time (in this example Litres / Litres ) 

RESET

Every short press of the RESET key, the various combinations of the 

units of measurements are scrolled as shown below:

CAL

CAL

CAL

By pressing the CAL key at length, the new settings will be stored, 

the METER will pass through the start cycle and will then be ready to 

dispense in the set units.

                                                           

Gal

Qts

Pts

Gal

RESET

RESET

RESET

ATTENTION

The Reset Total and Total registers will be automatically  

changed to the new unit of measurement.  

NO new calibration is required after changing the Unit of 

Measurement.

S MAINTENANCE

BATTERY 

REPLACEMENT

Use  2x1.5 V alkaline batteries size AAA

WARNING

K24 should be installed in a position allowing the batteries to be 

replaced without removing it from the system.

K24 features two low-battery alarm levels:
1

When the battery charge falls below the first level on the LCD, the fixed battery 

symbol appears. 

In this condition, K24 continues to operate cor-

rectly, but the fixed icon warns the user that it is ADVISABLE to change the 

batteries.

2

 If K24 operation continues without changing the batteries, the second battery 

alarm level will be reached which will prevent operation. In this condition the 

battery icon starts to flash and is the only one to remain visible on the LCD.

o change the batter-

ies, with reference 

to the exploded 

diagram positions, 

proceed as follows

UNSCREW THE NUT
REMOVE THE COVER (1)

LOOSEN THE SCREW (2)
REMOVE THE COVER (3) RIGHT SIDE
CHANGE THE BATTERIES
ASSEMBLE EVERYTHING BACK ON THE SEAL AROUND THE COVER 

HOUSING AND TAKE CARE TO PLACE

ATTENTION

DO NOT OVER-TIGHTEN THE SCREW

1

4

3

2

The K24 will display the same Reset Total, the same Total and the same Partial indicated before the batter-

ies were changed.  After changing the batteries, the meter does not need calibrating again.
CLEANING

Only one operation is necessary to clean the k24.

After removing k24 from the plant where it was built in, any residual 

elements can be removed by washing or mechanically-handling.

If this operation does not restore a smooth rotation of the turbine, it 

will have to be replaced.

ATTENTION

Do not discard the old batteries in the environment. Refer 

to local disposal regulations.
Do not use compressed air onto the turbine in order to 

avoid its damage because of an excessive rotation

PERIODICALLY CHECK THE CORRECT OPERATION OF THE 

AUTOMATIC STOP DEVICE

IF FITTED, IT IS BEST TO PERIODICALLY CHECK THE FILTER AND 

CLEAN IT EVERY 1000 LITRES OF TRANSFER.

PERIODICALLY CHECK THE TIGHTNESS OF THE CONNECTIONS

T MALFUNCTIONS

T1 MECHANICAL  MALFUNCTIONS

FOREWORD

THE POSSIBLE CAUSES OF MALFUNCTION ARE MAINLY ATTRIBUT-

ABLE TO THREE FACTORS:

1

NOZZLE DIRTY IN INNER HOLE OF LIP AT END OF SPOUT

2

OPERATING PRESSURE OF LIQUID TO BE DISPENSED  BELOW 0.5 bar 

OR ABOVE 3.5 bar 

3

FLOW RATE TOO LOW OR TOO HIGH

NOTE

CORRECT AND REGULAR MAINTENANCE OF THE NOZZLE AND OF 

THE SYSTEM  TO WHICH IT IS CONNECTED PREVENTS MALFUNC-

TIONS AND POSSIBLE ACCIDENTAL SPILLS OF HAZARDOUS LIQUIDS.

T2  ELECTRONIC MALFUNCTIONS

Problem

Possible cause

Remedial Action

LCD: no indication

Bad battery contact

Check battery contacts

Not enough measurement 

precision

Wrong K FACTOR

With reference to paragraph H, 

check the K FACTOR

The meter works below

minimum acceptable flow rate.

Increase the flow rate until an ac-

ceptable flow rate range has been 

achieved

Reduced or zero flow rate

TURBINE blocked 

Clean the TURBINE

The meter does not count, 

but the flow rate is correct

Incorrect installation of

gears after cleaning

Repeat the reassembly procedure

Possible electronic card problems Contact your dealer

U  TECHNICAL DATA

Measurement system

TURBINE

Resolution (nominal)

Hi Flow

0.010  lit/pulse

Low Flow

0.005  lit/pulse

Flow Rate  (Range)

5 ÷ 30 (Litres/minute) FOR AUS32

Operating pressure  (Max)

3.5 (Bar)

Storage temperature  (Range)

-20 ÷ + 70 (°C)

Storage humidity  (Max)

95  (% RU)

Operating temperature (Range)

-10 ÷ + 50  (°C)

Flow resistance

0.90  Bar at 100 lit/min.

Viscosity  (Range)

2 ÷ 5.35 cSt

Accuracy

±1% after calibration within

10÷90 (litres/min)  2,65÷23,8 (gallons/min) range

Reproducibility  (Typical)

±0,3   (%)

Screen

Liquid crystals LCD.  Featuring:

- 5-figure partial

- 6-figure Reset Total plus x10 / x100

6-figure non reset Total plus x10 / x100

Power Supply

2x1.5 V alkaline batteries size AAA

Battery life

18 ÷ 36 months

Protection

IP65

V DISPOSAL

Foreword

If the system needs to be disposed, the parts which make it up must be de-

livered to companies that specialize in the recycling and disposal of industrial 

waste and, in particular:

Disposing of packing 

materials

The packaging consists of biodegradable cardboard which can be deliv-

ered to companies for normal recycling of cellulose.

Metal Parts Disposal Metal parts, whether paint-finished or in stainless steel, can be consigned to 

scrap metal collectors.

Disposal of electric 

and electronic com-

ponents

These must be disposed of by companies that specialize in the disposal 

of electronic components, in accordance with the indications of directive 

2002/96/CE (see text of directive below).

   Information 

regarding 

the 

environment 

for clients 

residing 

within the European 

Union

European Directive 2002/96/EC requires that all equipment marked with this 

symbol on the product and/or packaging not be disposed of together with 

non-differentiated urban waste. The symbol indicates that this product must 

not be disposed of together with normal household waste. It is the respon-

sibility of the owner to dispose of these products as well as other electric or 

electronic equipment by means of the specific refuse collection structures 

indicated by the government or the local governing authorities.

Miscellaneous parts 

disposal

Other components, such as pipes, rubber gaskets, plastic parts and wires, must 

be disposed of by companies specialising in the disposal of industrial waste.

Bulletin    M0220B IT-EN_00

PIUSI S.p.A.

Suzzara (MN) Italy

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