idrania OPTIMA PRO NEXT 200 Manuel D'installation page 10

Paragraph 3 – Proportional Dosage to 20-4/0 mA signal
Programming
+
PROG
Config.
Config.
Funct.
Funct.
20-0/4
Low
20.0mA
High
4.0mA
IN mA :
0.1mA
Paragraph 4 – Proportional to External Impulses (multiplication)
Programming
+
PROG
Config.
Config.
Funct.
Funct.
(1:n)
n
1
Timeout
60 s
Memory
Off
EM00136320
Display during operation
Function mode
4-20mA
•
Alarms and statuses
Lev = Level Alarm
•
Flw = Flow Alarm
•
•
• •
•
•
The pump proportionally doses at a signal of 20-4(0) mA. By default, the
pump interrupts the dosage at 20 mA and doses at the maximum set
frequency when it receives 4 mA. For an input signal of less than the
minimum value – 0.2mA (fixed threshold) (Ex. 4-0.2= 3.8mA) the alarm
LED turns on to indicate that the minimum value has been exceeded, but
the pump continues to dose at the maximum frequency. These two values
can be modified during programming. The maximum frequency can be
modified during operation by pressing
modify the flow rate.
To view the current reading for the mA input, scroll the menu items to In
mA.
For an input signal of less than 0.2 mA the alarm LED turns on to indicate
the absence of signal and the pump interrupts the dosage.
Display during operation
Function mode
4-20mA
•
Alarms and statuses
Lev = Level Alarm
•
Flw = Flow Alarm
•
•
• •
•
The pump doses proportionally to an external signal (ex: water meter
pulse-sender). For every signal received, the pump runs the programmed
"n" number of strokes. The pump automatically sets the dosage
frequency, adapting it to the time that passes between two successive
signals. It is possible to set the time (timeout) in seconds, beyond which
the pump resets the interval counter in order to avoid dosages over
excessively long periods of time. The pump has a memory function which
detects the reception of a signal during the dosage. If set to Off, it only
detects the signal; if set to On, it detects and memorizes the impulses,
then executes them when has finished receiving the signals.
The "n" value can be changed during operation by pressing
simultaneously.
4-20
P 100%
Value of dosing on going
(depends on unit of measure
Pump status
empty = pump in stating
•
Stop = pump in stop
Paus = pump in pause
•
20-4
P 100%
Value of dosing on going
(depends on unit of measure
Pump status
empty = pump in stating
•
Stop = pump in stop
Paus = pump in pause
•
rev.2.0 EN
selected)
Percentage, Frequency,
l/h, Gph, ml/m
Operation
+
selected)
Percentage, Frequency,
l/h, Gph, ml/m
Operation
simultaneously to
+
8