ELGA
MEDICA Pro 30/60/120 US Operator Manual
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MEDICA Pro 30/60/120 US MANU40594 Version 1
– 07/14
Page 27
7.3
Calculation for Medpure L1 Cartridge life
Calculate the maximum Medpure cartridge life under emergency
bypass processing and with your mains water conditions to maintain
a supply purity of 1MΩ.cm to the analyzer
The maximum life expectancy of the Medpure L1 cartridge in
emergency bypass mode while maintaining a supply purity of 1MΩ
at the analyzer, may be calculated as follows:
Single Pack
Time
between
pack
changes
=
120,000
Conductivity
of mains
water
x
Water consumption of
analyzer (l/hr)
Example
Mains water conductivity = 605
µ
S/cm
Water consumption of analyzer = 20 l/hr
Time between pack changes
= 120,000
605 x 20
Time between pack changes =9.9 hr
In the absence of information on mains water conductivity, assume a
pack life of 2 hr if the analyzer consumes 20 l/hr. If flows start to
decline this may be improved by changing the UMF.
The capacity will be somewhat less (typically 20 to 40% less) if a
water purity of 10 M
.cm is needed.
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