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19. “DIVIDE” working mode
DIVIDE mode.
External pulses are divided by a value set during program session. The pump doses with a
frequency determined by this parameter.
Which parameters must be set ?
DIVIDE (divisor factor)
mode [02]
divide
DIVIDE
150.00
Key
E
Use this mode if connected pulse sender water meter produces many pulses and pump must
divide them for correct dosing activities. See formula below to verify this value.
Minimum value accepted is 001.00. Setting a lower value the pump does not save the data.
Use
“UP”
key to modify the value. Press
“RIGHT”
key to move on next digit.
Press
“E”
key to save data and “
ESC
” to exit to main menu. Otherwise press
“ESC”
to
discard data and exit to main menu.
Use the following formula to find the divider to keep desired concentration.
[imp/l] x
[cc]
( ——————————— ) x 1000 = N
[ppm] x [K]
N - divisor value to enter into the pump
[imp/l]- pulses/liter from pulse sender water meter
[cc]
- single injection quantity of dosing pump
[ppm] - part per millions product quantity to dose (gr/m
3
)
[K] - product dilution coefficient.
100% of product when K=1
If obtained “N” is < 1 then install a pulse sender water meter that produces more pulses. Otherwise use the “MULTIPLY” mode and multiply
for 1/N. It’s also possible to fix the problem trying to decrease product dilution.
Summary of Contents for VMS MF
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