Piusi K900 Manual

Installation, use and calibration | EN
Installazione, uso e calibrazione | IT
K900
Bulletin M0158b IT |EN _00

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This manual is the property of PIUSI S.p.A. Any reproduction, even partial, is forbidden.
Translated from Italian
Bulletin M0158B IT |en
ENGLISH

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Installation, use and maintenance
A INDEX
A INDEX 32
B DECLARATION OF CONFORMITY 33
C GENERAL WARNINGS 33
D SAFETY INSTRUCTIONS 34
D1 SAFETY WARNINGS 34
D2 FIRST AID RULES 34
D3 GENERAL SAFETY RULES 34
D4 PACKAGING 35
D5 PACKAGE CONTENTS/PRE-INSPECTION 35
E BECOMING AQUANINTED WITH K900 36
E1 LCD DISPLAY (ONLY METER VERSION) 36
E2 USERS BUTTONS 38
F INSTALLATION 38
G DAILY USE 40
G1 DISPENSING IN NORMAL MODE 41
G1.1 PARTIAL RESET (NORMAL MODE) 41
G.2 RESETTING THE RESET TOTAL 42
H ERROR INDICATIONS 43
I CALIBRATION 44
I1 DEFINITIONS 44
I2 CALIBRATION PROCEDURE 44
I2.1 DISPLAY OF CURRENT CALIBRATION FACTOR AND 45
RESTORING FACTORY FACTOR 45
I2.2 IN FIELD CALIBRATION 46
I2.2.1 IN-FIELD CALIBRATION PROCEDURE 47
I2.3 DIRECT MODIFICATION OF K FACTOR 48
L CONFIGURATION 50
L1 CONFIGURATION OF THE UNITS OF MEASUREMENT 50
L2 (OPTIONAL) PULSE TRANSMITTER (PULS OUT) 51
M ALARM OUTPUT (ALARM OUT) 52
N MAINTENANCE 53
N1 CHANGE BATTERY 53
N2 CLEANING THE MEASUREMENT CHAMBERS 54
N3 CLEANING THE FILTER 55
O DISPOSAL 55
P MALFUNCTIONS 56
Q TECHNICAL SPECIFICATIONS 57
R EXPLODED VIEW / SPARE PARTS 58

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Translated from Italian
B DECLARATION OF CONFORMITY
The undersigned:
PIUSI S.p.AVia Pacinotti c.m. z.i.Rangavino
46029 Suzzara - Mantova - Italy
HEREBY STATES
under its own responsibility, that the equipment described below:
Descriprion: METER
Model: K900
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, 01/01/2015 Otto Varini
legal representative.
C GENERAL WARNINGS
Important precau-
tions To ensure operator safety and to protect the pump from potential dam- age, 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 po-
tentially exposed persons.
WARNING
Thissymbolindicatesthatthere is risk ofdamagetothe equipment and/
or its components.
NOTE
This symbol indicates useful information.
Manual preservation his manual should be complete and legible throughout. It should remain
available to end users and specialist installation and maintenance techni-
cians for consultation at any time.
Reproduction rights
This manual belongs to Piusi S.p.A., which is the sole proprietor of all rights
indicated by applicable laws, including, by way of example, laws on copyrights. All
the rights deriving from such laws are reserved to Piusi S.p.A.: the reproduction,
including partial, of this manual, its publication, change, transcription and notifica-
tion to the public, transmission, including using remote communication media,
placing at disposal of the public, distri¬bution, marketing in any form, translation
and/or processing, loan and any other activity reserved by the law to Piusi S.p.A..

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Installation, use and maintenance
D SAFETY INSTRUCTIONS
D1 SAFETY WARNINGS
Mains - pre-
liminary checks
before installation
ATTENTION
You must avoid any contact between the electrical power supply and the fluid
that needs to be FILTERED.
Maintenance
control Before any checks or maintenance work are carried out, disconnect the power
source.
D2 FIRST AID RULES
Contact with the
product In the event of problems developing following EYE/SKIN CONTACT, INHALA- TION 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 PRO-
HIBITED When operating the dispensing system and in particular during refuelling, do
not smoke and do not use open flame.
D3 GENERAL SAFETY RULES
Essential
protective
equipment
characteristics
Wear protective equipment that is:
suited to the operations that need to be performed;
resistant to cleaning products.
Personal
protective
equipment that
must be worn
Wear the following personal protective equipment during handling and instal-
lation:
safety shoes;
close-fitting clothing;
protective gloves;
safety goggles;
Protective
equipment instruction manual

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EN
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Translated from Italian
D4 PACKAGING
FOREWORD K900 COMES PACKED IN A CARDBOARD BOX WITH A LABEL INDI-
CATING THE FOLLOWING DATA:
1 - contents of the package
ACCESS 85
F00702000
ACCESS 85
F00702000
F00702000
F00702000
2 - weight of the contents
3 - description of the product
D5 PACKAGE CONTENTS/PRE-INSPECTION
FOREWORD To open the packaging, use a pair of scissors or a cutter, being careful not to damage
the dispensing system or its components.
WARNING Check that the data on the plate correspond to the desired specifica-
tions. In the event of any anomaly, contact the supplier immediately,
indicating the nature of the defects. Do not use equipment which you
suspect might not be safe.

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Installation, use and maintenance
E BECOMING AQUANINTED WITH K900
FOREWORD METER is an electronic digital meter featuring an oval-gear measurement
system, designed for easy and precise measuring of oils, diesel, rapsoil and
antifreeze.
FUNCTIONING
PRINCIPLE The fluid, by flowing through the appliance, rotates the gears which, during their rotation, transfer, “volume units” of fluid. The exact measurement
of the dispensed fluid is done by counting the number of rotations made
by the gears and consequently the number of transferred “volume units”.
The magnetic coupling, between the magnets installed in the gears and a
magnetic switch outside the measurement chamber, ensures measurement
chamber sealing and ensures transmission of the pulses generated by gear
rotation to the electronic board microprocessor.
OPERATIONAL
MODE In the dispensing mode (Normal Mode), the partial and the total amounts are shown in two different registers of the LCD.
The METER features a non-volatile memory for storing the dispensing data,
even in the event of a complete power break for long periods.
E1 LCD DISPLAY (ONLY METER VERSION)
FOREWORD The “LCD” of the METER features two numerical registers and various indications
displayed to the user only when the applicable function so requires.
1Partial register (5 figures with moving
comma FROM 0.1 to 99999) indicating the
volume dispensed since the reset button
was last pressed
6Indication of type of total, (TOTAL / Reset TOTAL);
2Indication of battery charge 7Indication of unit of measurement of Totals:
L=Litres Gal=Gallons
3Indication of calibration mode 8Indication of Flow Rate mode
4Totals 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)
9Indication of unit of measurement of Partial:
Qts=Quarts Pts=Pints
L=Litres Gal=Gallons
5Indication of total multiplication factor
(x10 / x100)
456
9
7
1
2
3
8

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Translated from Italian
Measurement
Chamber The measurement chamber of K900 consists of two chambers held
together by the manifold.
Inside the measurement chamber are the oval gears which, on turning,
generate electrical pulses which are processed by the microprocessor-
controlled electronic board.
By applying a suitable calibration factor (meaning a “weight” associated
with each pulse), the microprocessor translates the pulses generated by
the “fluid volume” rotation expressed in the set units of measurement,
displayed on the partial and total registers of the LCD.
All the meters are factory set with a calibration factor called FACTORY K
FACTOR equal to 1,000. For best meter performance the instrument can
be “calibrated”.
It is possible to return to factory calibration at any time.
Baery Housing K900 is powered by two standard type 1.5 V batteries (size 1N) .
The battery housing is closed by a threaded watertight cap that can be
easily removed for quick battery change.
K900 components
1LCD display
2
4
3
1
5
2RESET button
3Measurement
chamber
4CAL button
5Battery housing

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Installation, use and maintenance
E2 USERS 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 desired 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 AC-
TIONS TO BE PERFORMED
SHORT
PRESSURE
OF CAL
KEY
CAL LONG
PRESSURE
OF CAL
KEY
CALCAL
CAL SHORT
PRESSURE
OF RESET
KEY
RESET LONG
PRESSURE
OF RESET
KEY
RESET
RESET
RESET
F INSTALLATION
FOREWORD K900 has a 3 inch inlet and outlet. It was designed for permanent installa-
tion on a distribution line and to this purpose, the measurement chamber is
fitted with a threaded inlet and outlet.
The two cables (each one consisting of two wires) sticking out from the
cover of the measurement chamber are to be connected to K900 remote
display.
WARNING K900 does not have a fixed direction of flow and both inlets can be used
as inlet and outlet. It is the filter position which determines the inlet di-
rection of the fluid.
Make sure a filter with adequate filtering capacity is always fied either
at meter inlet or at the entrance of the line on which the meter is fied.
If solid particles enter the measurement chamber, the gears could seize.
On installations, place the meter in a position that will enable an easy
access to the baeries compartment

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Translated from Italian
Nota bene:
prima di effettuare
un collegamento
con
ALIMENTAZIONE
ESTERNA occorre
RIMUOVERE LE
BATTERIE dal
portabatteria
ATTENTION:
Before the external
power connection,
remove the battery
from battery
housing
Vcc rosso \ red
Puls OUT blu \ blue
GND nero \ black
PULSER 2 - giallo \ yellow
Sync Reset Verde / Green
GND - Nero / Black
PULSER 01
Pulse OUT
Vcc
GND
GND
Optional
external
Power
Vcc input:
4-12 Vdc
+
-
+
+
SYNC RESET
K900 con PULS OUT /
K900 with PULSE OUT
Display Remoto con PULS IN /
Remote Display with PULSE IN
Vcc rosso \ red
Sync Reset Verde / Green
GND nero \ black
Puls IN
bianco \ white
GND
Nero / Black
Vcc
+
+
SCHEMA COLLEGAMENTI ELETTRICI / ELECTRICAL CONNECTION
PULSER 02
SEGNALAZIONE
DI ALLARME \
ALARM
(OPTIONAL)
Vcc
(MAX 24 Vdc)
GND
PULSER 1- bianco \ white
GND - Nero / Black
CAMERA DI MISURA /
MEASURE BOX
ALLARM OUT marrone \ brown
ALARM
OUT
RELE'
Nota bene:
prima di effettuare un
collegamento con
ALIMENTAZIONE
ESTERNA occorre
RIMUOVERE LE
BATTERIE dal
portabatteria
ATTENTION:
Before the external
power connection,
remove the battery from
battery housing
Vcc rosso \ red GND nero \ black
PULSER 2
giallo \ yellow
GND
Nero / Black
PULSER 01
Vcc
GND
Optional external
Power Vcc
input: 4-12 Vdc
+
-
+
+
K900 SENZA PULS OUT /
K900 without PULSE OUT
SCHEMA COLLEGAMENTI ELETTRICI / ELECTRICAL CONNECTION
PULSER 02
PULSER 1
bianco \ white
GND
Nero / Black
CAMERA DI MISURA /
MEASURES BOX

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Installation, use and maintenance
G DAILY USE
FOREWORD The only operations that need to be done for daily use are partial and/or resettable
total register resetting. The user should use only the dispensing system of K900. Oc-
casionally 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.
*The Partial register positioned in the top part of the display indicates the
quantity dispensed since the RESET key was last pressed
*The RESET Total register, positioned in the lower part of the display, indicates
the quantity dispensed since the last RESET Total resetting. The RESET Total
cannot be reset until the Partial has been reset, while vice versa, the Partial can
always be reset without resetting the RESET Total. The unit of measurement of
the two Totals can be the same as the Partial or else different according to the
factory or user settings.
*The General TOTAL register (Total) can never be reset by the user. It continues
to rise for the entire operating life of the meter.
*The register of the two totals (Reset Total and Total) share the same area and
digits of the display. For this reason, the two totals will never be visible at the
same time, but will always be displayed alternately.
*The General Total (Total ) is shown during Meter standby
*The Reset Total is shown:
- At the end of a Partial reset for a certain time (a few seconds)
- During the entire dispensing stage
- For a few seconds after the end of dispensing. Once this short time has
expired. Meter switches to standby and lower register display switches to
General Total
NOTE 6 digits are available for Totals, plus two icons x 10 / x100. The increment
sequence is the following:
0.0 -> 99999.9 -> 999999 -> 100000 x 10 -> 999999 x 10 ->100000 x 100 ->
999999 x 100

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Translated from Italian
G1 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 eect.
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 situation is called standby and remains stable until the user operates the K400 again.
G1.1 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 resettableTotal.

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Installation, use and maintenance
G.2 RESETTING THE RESET TOTAL
The reset total resetting operation can only be performed after resetting
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:
1Wait for the display to show normal standby display page (with total only
displayed)
2Press the reset key quickly
3The meter starts to reset the partial
4While the display page showing the reset total is displayed
Press the reset key again for at least 1 second
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.

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Translated from Italian
H ERROR INDICATIONS
FOREWORD During the normal meter operation, unusual conditions may occur and
compromise its proper functioning. K900 electronics was designed to
recognize one of these conditions and inform the operator by means of a
display message. In these cases, an error indication will be displayed in-
stead of the total; the partial indication continues to increase while blinking.
The unusual working conditions recognized by the meter are the following:
Exceeding of the
maximum meter
flow rate
he flow rate of the fluid dispensed may exceed the max. allowed flow rate,
thus damaging the meter gears. Should this condition occur, “HI FLO” will
be displayed:
From one of the mea-
surement chambers
no pulses are found
The meter consists of two adjacent measurement chambers, held
together by a manifold. The fluid, by flowing through the appliance, rotates
the gears in the two chambers which, during their rotation, transfer, “vol-
ume units” of fluid. The exact measurement of the dispensed fluid is done
by counting the number of rotations made by the gears in both chambers
and consequently counting the transferred “volume units”. Each chamber
is associated with a transmission channel of “volume units”.
- chamber 1 channel 1 (CH1 WHITE wire)
- chamber 2 channel 2 (CH2 YELLOW wire).
Should the gears of one of the two chambers block or the counting elec-
tronics of one of the two chambers break down, counting of the dispensed
quantity would not be correct.
To make the user aware of this fault, “E1” is displayed:
“E1 CH1” means that “channel 1 has stopped”: in chamber 1 no fluid is pass-
ing because the gears are blocked or the electronics is faulty;
“E1 CH2” means that “channel 2 has stopped”: in chamber 2 no fluid is
passing because the gears are blocked or the electronics is faulty.
In one measuring cham-
ber more fluid is passing
than in the other
If the gears of one chamber are slightly obstructed, they slow down the
transfer of fluid which, in the other chamber, will flow more quickly. In this
conditions it will be displayed:
“E2 CH1”: fluid in chamber 1 is slower than fluid in chamber 2 CHECK
GEARS OF CHAMBER 1.
“E2 CH2”: fluid in chamber 2 is slower than fluid in chamber 1 CHECK
GEARS OF CHAMBER 2.

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Installation, use and maintenance
I CALIBRATION
FOREWORD K900 is supplied with a factory calibration that ensures precise measuring in
most operating conditions. Nevertheless, when operating close to extreme
conditions, such as for instance:
*with fluids close to acceptable range extremes (such as low-viscosity anti-
freeze)
*in extreme flow rate conditions (close to minimum or maximum acceptable
values)
I1 DEFINITIONS
Calibration factor
or “K Factor” this is the 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 utmost precision in the following operating
conditions:
Fluid DIESEL (EN590)
Temperature: 20°C
Flow rate: 50-255 litres/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.
I2 CALIBRATION PROCEDURE
Why calibrate? 1Display the currently used calibration factor:
2Return to factory calibration (Factory K Factor) after a previous calibration by
the user
3Change the calibration factor using one of the two previously indicated
procedures
FOREWORD Two procedures are available for changing the Calibration Factor:
1In-Field Calibration, performed by means of a dispensing operation
2Direct Calibration, performed by directly changing the calibration factor
In calibration mode, the partial and total dispensed quantities indicated on the display screen take on differ-
ent meanings according to the calibration procedure phase. In calibration mode, the meter cannot be used
for normal dispensing operations. In “Calibration” mode, the totals are not increased
ATTENTION The meter 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; aer changing the baeries, calibration
need not be repeated.

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Translated from Italian
I2.1 DISPLAY OF CURRENT CALIBRATION FACTOR AND
RESTORING FACTORY FACTOR
CALCAL
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 calibra-
tions, 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 factor 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
K400 uses the calibration
factor that has just been
confirmed
CAL
CALCAL
CAL
RESET
RESET
TIME OUT
ATTENTION When the Factory Factor is confirmed, the old User factor is deleted
from the memory

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Installation, use and maintenance
I2.2 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 K400 calibration, it is most important to:
1When the Factory Factor is confirmed, the old User factor is deleted from the memory
2use a precise Sample Container with a capacity of not less than 5 litres, featuring an
accurate graduated indicator.
3ensure calibration dispensing is done at a constant flow rate equivalent to that of normal
use, until the container is full;
4Not 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) ;
5after 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, during which the
level in the container could drop.
6Carefully follow the procedure indicated below.

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Translated from Italian
I2.2.1 IN-FIELD CALIBRATION PROCEDURE
OPERATION Display
1NONE
K900 in normal mode, not in counting mode.
2LONG CAL KEY KEYING
K900 enters calibration mode, shows «CAL” and displays the calibration factor in use
instead of total. The words “Fact” and “USER” indicate which of the two factors (factory
or user) is currently in use
3LONG RESET KEY KEYING
K900 shows “CAL” and the partial at zero. The meter is ready to perform in-field cali-
bration.
4
DISPENSING INTO SAMPLE CONTAINER
Without pressing any buon,
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
55 SHORT RESET KEY KEYING
K900 is informed that the calibration dispensing operation is finished.
Make sure dispensing is correctly finished before performing this operation.
To calibrate K900, the value indicated by the partial totaliser (example 155.20) must be
forced to the real value marked on the graduated sample container. In the boom le
part of the display an arrow appears (upwards and downwards), that shows the direc-
tion (increase or decrease) of the USER K FACTOR value change when the operations
6 or 7 are performed.
6SHORT RESET KEY KEYING
Changes the direction of the arrow. The operation can be repeated as many times as
you wish
7SHORT/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.
(for the first 5 units slowly and then quickly).
If the desired value is exceeded, repeat the operations from point (6).

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Installation, use and maintenance
8LONG RESET KEY KEYING
K900 is informed that the calibration procedure is finished. Before doing this, make
sure the DISPLAYED factor is the ACTUAL factor
Indicated value Real value
K900 calculates the new USER K FACTOR ; this calculation could require a few sec-
onds, depending on the correction to be made.
During this operation the arrow disappears but the CAL indication remains.
If this operation is performed aer operation (5), without changing the indicated value,
the USER K FACTOR would be the same as the FACTORY K FACTOR, thus it is ig-
nored.
9NO OPERATION
At the end of the calculation, the new USER K FACTOR is shown for a few seconds,
aer 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 meter and will continue to remain such even aer a baery change
10 NO OPERATION
K900 stores the new calibration factor and is ready
for dispensing, applying the newly defined USER K FACTOR.
I2.3 DIRECT MODIFICATION OF K FACTOR
This procedure is especially useful to correct a “mean error” obtainable on the basis of several performed
dispensing operations. If normal K900 operation shows a mean percentage error, this can be corrected
by applying to the currently 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 meter 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 meter shows more than the
real dispensed value (positive error).

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Translated from Italian
OPERATION Display
Connfiguration
1NONE
K900 in normal mode, not in counting mode
2LONG CAL KEY KEYING
K900 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 fac-
tors (factory or user) is currently being us
3LONG RESET KEY KEYING
K900 shows “CAL” and the partial at zero.
K900 is ready to perform in-field calibration by dispensing
4LONG 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 boom le part of the dis-
play, 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
5SHORT RESET KEY KEYING
Changes the direction of the arrow. The operation can be repeated to alternate the
direction of the arrow.
6BSHORT/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 keep-
ing the key pressed.
If the desired value is exceeded, repeat the operations from point (5).
7LONG RESET KEY KEYING
K900 is informed that the calibration procedure is finished.
Before performing this operation, make sure the indicated value is that required
8NO OPERATION
At the end of the calculation, the new USER K FACTOR is shown for a few seconds,
aer 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 meter and will continue to remain such even aer a baery change
9NO OPERATION
K900 stores the new calibration factor and is ready
for dispensing, applying the newly defined USER K FACTOR.