OPTIMIZE METERING PUMP SPEEDS & LOOP
Many states require that metering pumps be operated
within a specific zone of the pump turn down range.
For instance, The Wisconsin Administrative Code states
"metering pumps shall operate at 30-70% of their
specified range and a minimum of 12 strokes per minute.
If this is not possible, dilution of the chemical will
be required." The Utah Administrative Code requires
"fluoride solution shall be applied by a pump having
a stroke rate not less than 20 strokes per minute."
With dilution ratios of up to 1000:1 possible, the
Merlin can turn a pump with a 10:1 turndown into a pump
with an effective turndown of 10,000:1!!!
HIGH VOLUME / LOW STRENGTH MEANS BETTER CONTROL:
Although many metering pumps have a broad turndown ratio,
they are more accurate and can help achieve better residual
control when operating at the middle to upper end of
the pump range. On demand dilution allows a higher volume/lower
strength chemical to be fed. This allows for smaller
incremental changes in chemical dosing, enabling
tighter residual loop controls (i.e. pH., ORP, streaming
current, chlorine) by reducing overshoot
ACCURACY & REPEATABILITY:
A consistent and reliable chemical strength is paramount
to achieving good residual loop control. The fully automated
Merlin Dilution Controller can produce unparalleled
accuracy and consistency by using instrument grade load
cells coupled with a microprocessor based controller.
Our unique patent pending design allows us to fine tune
the dilution process to accuracies greater than 1/10th
of 1% for each and every batch.