EVCO S.p.A. • Code 1047001E05
EV7001
Single output digital liter counter
version 1.05
PT • 14/12
GB ENGLISH
1
GETTING STARTED
1.1 Important
Read these instructions carefully before installing and using the instru-
ment and follow all additional information for installation and electrical
connection.
Keep these instructions close to the instrument for future consultations.
1.2 Installing the instrument
Panel mounting, with the screw brackets supplied by the builder; di-
mensions in mm (in).
DIMENS.
MINIMUM
TYPICAL
MAXIMUM
A
68.0 (2.677)
68.0 (2.677)
68.7 (2.704)
B
68.0 (2.677)
68.0 (2.677)
68.7 (2.704)
Additional information for installation:
• 45 (1.771) is the maximum depth with spring terminal blocks
• 59 (2.332) is the maximum depth with extractable terminal blocks
• the maximum panel thickness must be 4 mm (0.157 in)
• position the brackets as indicated; moderate the clamping torque, in
order not to damage box and brackets
• working conditions (ambient temperature, humidity, etc.) must be
between the limits indicated in the technical data
• do not install the instrument close to heating sources (resistances,
hot air ducts, etc.), locations subject to direct sunlight, rain, humidity,
dust, mechanical vibrations or bumps, devices provided with big
magnetos (big speakers, etc.)
• according to the safety norms, the protection against electrical parts
must be ensured by a correct installation of the instrument; the parts
that ensure the protection must be installed so that you can not
remove them if not by using a tool.
1.3 Wiring diagram
PAY ATTENTION:
• if the instrument is supplied with 24 Vac, protect termi-
nal 10 or terminal 11 with a fuse (160 mA T).
Additional information for electrical connection:
• do not operate on the terminal blocks with electrical or pneumatic
screwers
• if the instrument has been moved from a cold to a warm location,
the humidity will condense on the inside; wait about an hour before
supplying the instrument
• test the working power supply voltage, working electrical frequency
and working electrical power of the instrument; they must corre-
spond with the local power supply
• disconnect the local power supply before servicing the instrument
• do not use the instrument as safety device
• for repairs and information concerning the instrument please con-
tact Evco sales network.
2
OPERATION
2.1 Preliminary information
After a switch on possible counts will be cleared and the valve will be
switched off.
The number of pulses corresponding to a liter of water depends on
parameter t5.
2.2 Count start
• make sure no procedure is running
• press
or activate input start: the display will show the count
of the number of liters of water you have set with
patameter t1
2.3 Suspending/resuming the count
• press
2.4 Count stop
• press
2 s.
2.5 Silencing the buzzer
• make sure no procedure is running
• press a button (the first pressure of the button does not provoke its
usual effect).
3
SETTINGS
3.1 Setting the number of liters of water to count
• make sure no count and no procedure is running
• press
LED out 1 will flash
• press
or
in 15 s
• press
or do not operate 15 s.
It is also possible to set the number of liters of water to count through
parameter t1.
3.2 Setting configuration parameters
To gain access to the procedure:
• make sure no count and no procedure is running
• press
and
per 4 s: il display visualizzerà “PA”
• press
• press
or
in 15 s to set “-19”
• press
or do not operate 15 s.
• press
and
4 s: the display will show “t1”.
To select a parameter:
• press
or
To modify a parameter:
• press
• press
or
in 15 s
• press
or do not operate 15 s.
To quit the procedure
• press
and
4 s or do not operate 15 s.
One suggests switching off the power supply of the
instrument after the modification of the parameters.
3.2 Restoring the default value of the configuration
parameters
• make sure no count and no procedure is running
• press
and
4 s: the display will show “PA”
• press
• press
or
in 15 s to set “743”
• press
or do not operate 15 s
• press
and
4 s: the display will show “dEF”
• press
• press
or
in 15 s to set “149”
• press
or do not operate 15 s: the display will show “dEF” flash-
ing 4 s, on afterwards it will quit the procedure
• switch off the power supply of the instrument.
4
SIGNALS
4.1 Signals
LED
MEANING
out
LED valve
if it is lit, the valve will be switched on
if it flashes, the modification of the number of liters of water
to count will be running
5
TECHNICAL DATA
5.1 Technical data
Box: self-extinguishing grey.
Frontal protection: IP 65.
Connections: extractable terminal blocks or spring terminal blocks
(power supply, input and output).
Working temperature: from 0 to 55
°
C (32 to 131
°
F, 10 ... 90% of
relative humidity without condensate).
Power supply: 230 Vac, 50/60 Hz, 2 VA; 24 Vac by request.
Buzzer: included.
Digital inputs: 2 (pulses counter and start) for NO/NC contact (free
of voltage, 5 V 1 mA).
Working range: from 0 to 9,990 l.
Resolution: 0.5 l/1 l.
Relay outputs: one 5 A @ 250 Vac relay (change-over contact) for
the management of the valve.
