Maxima MPG Cod. EM00136006
rev. 1.1
19
−
Selecting Impulses (See Fig. 24)
The number
n
displayed represents the number of external impulses required for the pump to dose one stroke.
This value can be changed between 1 and 9999 using the
▲
or
▼
keys.
For Example:
If I have connected my pump to a CB1 series plunger impulse counter (1 imp/l) and have selected
N=8, this means that every 8 impulses on the counter my pump will give one stroke, that is, for every 8 litres of
water that pass the counter the pump will dose one stroke.
The set value is confirmed by pressing the
Prog
key and the programming moves on to selecting the
Memory
function.
−
Memory Function (see Fig. 24)
The software continually monitors the arrival of external impulses. When these are at high frequency and the
pump is not able to dose all the corresponding strokes the “missed” strokes can be recorded, up to a maximum of
65,535, so as to dose these as soon as possible.
Memory
Function
OFF
(
Memory
icon off).
The pump does not record missed strokes. The under dosage situation is indicated. A message
reading
ALL2
appears on the screen and disappears as soon as the under dosing situation is
resolved.
Memory
Function
ON
(
Memory
icon lit).
As soon as the pump starts recording excess strokes the
Memory
icon flashes until the
recorded strokes have been completed.
If the memory is exceeded (more than 65,535 strokes recorded) the Alarm LED also
switches on and the alarm repetition relay is activated.
WARNING:
The recorded strokes are deleted under the following conditions:
Switching the dosage pump off.
Entering programming.
Carrying out the priming procedure (pushing the
▲
and
▼
keys together).
Activating the level alarm with pump cut-out.
Activating the Flow Alarm.
The pump temperature exceeds the safety limit and the pump goes into self-
protect mode (when the temperature falls below the threshold the pump
restarts with the memory zeroed).
WARNING:
The pump may stop automatically due to a pump cut-out signal emitted by
the level sensor (
Level
icon and
Alarm
LED lit), see par.
3.1.4
“Checking the level of the
liquid to be dosed”.
The status set can be confirmed by pressing the
Prog
key, which also enables selecting the Flow function.
−
Flow Control Function (see Fig. 24)
This can be enabled by pushing the
▲
or
▼
keys, and stored in the memory by pushing the
Prog
key.
