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Spectra Watermakers CF-0.5-10 User Manual

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SpectraPure
SpectraPure®Inc.
  
480.894.5437   Call us toll-free  1.800.685.2783    
2167 East Fifth St,    Tempe, Arizona   85281
®
4
SYSTEM SPECIFICATIONS
Sediment Pre-Filter 
 
0.5 micron MicroTec™  sediment pre-filter
Carbon Filter  
 
 
0.5 micron carbon block pre-filter
RO Membrane Type   
Thin-Film Composite  (TFC)
DI 
Cartridges 
   
M
AX
C
AP
 DI ™ 
      SilicaBuster™ 
DI
Rejection Rate   
 
Greater than 98% average
Input Water Pressure 
60 psi (4.15 bar) line pressure*
Input Water Temp    
77°F (25°C)
Recovery Rate   
 
20% (i.e. 20% of the water will be
      collected 
as 
pure 
water)
Nominal Membrane Flow Rates @ 60 psi  & 77° F :
 
GPD (lpd) 
Product Water Flow Rate   
Concentrate Flow Rate
 
   90 (340) 
  
235ml/min   
 
 
 
940 ml/min
 
   150 (340)    
235ml/min   
 
 
 
940 ml/min
 
   300 (680)   
470ml/min   
 
 
       1880 ml/min
Reverse Osmosis Membrane Feed Water Requirements
For the 1 year SpectraSelect TFC membrane pro-rated warranty to be honored, the 
following conditions must be met:
Operating Pressure*   
 
 
40 – 80 psi (2.75 – 5.5 bar)
pH 
Range      3 
– 
11
Maximum Temperature 
 
 
100° F (38° C)
Maximum 
Turbidity    1.0 
NTU
Maximum Silt Density Index 
 
5.0 (based on 15 min. test time)
Maximum Chlorine 
 
 
 
less than 0.1 ppm
Maximum 
TDS     2000 
ppm
Maximum Hardness   
 
 
10 grains (170 ppm as CaCO3)
Maximum 
Iron     less 
than 
0.1 
ppm
Maximum Manganese  
 
 
less than 0.1 ppm
Maximum Hydrogen Sulfide 
 
0 ppm
Langlier Saturation Index   
 
LSI must be negative
*Operating pressure less than 40 psi will require a booster pump:
less than 49 GPD use BPLF-MO-115(-230),
more than 49 GPD use BPHF-MO-115(-230).
*Operating pressure greater than 80 psi will require a pressure reducing valve.
SpectraPure®Inc
. 
 Fax  480.894.6109 Fax us toll-free 1.877.527.7873
E-mail: spectra@spectrapure.com Visit us on the web www.spectrapure.com
21
SpectraPure
®
TESTING THE PERFORMANCE OF THE MEMBRANE
Membrane Output Calculation
Membranes produce the rated gallons per day (GPD) at 60 psi (4.1 bars) operat-
ing pressure, 77°F (25°C) operating temperature and 500 ppm total dissolved 
solids.
Membrane output gallons per day (GPD) depends on operating pressure, water 
temperature and the ppm TDS in the feed water.
 
Expected GPD = Rated GPD × PCF × TCF
PCF is the pressure correction factor
TCF is the temperature correction factor
Calculation of Pressure Correction Factor (PCF): 
The output (GPD) from 
the membrane is directly proportional to the applied pressure. 
Note: The membrane is rated to produce the rated GPD at 60 psi. For any pres-
sure other than 60 psi the output GPD is multipled by the PCF.
PCF = Line Pressure (in psi) ÷ 60 
Calculation of Temperature Correction Factor (TCF): 
The output (GPD) 
also decreases with decrease in temperature. This is because water viscosity 
increases with decrease in water temperature.
Temperature Correction Factor Table (TCF)
°F 
/°C  TCF 
  °F 
\°C  TCF 
  °F 
\°C  TCF
41.0 /5   
0.521 
 
59.0 /15  
0.730 
 
77.0 /25  
1.000
42.8 /6   
0.540 
 
60.8 /16  
0.754 
 
78.8 /26  
1.031
44.6 /7   
0.560 
 
62.6 /17  
0.779 
 
80.6 /27  
1.063
46.4 /8   
0.578 
 
64.4 /18  
0.804 
 
82.4 /28  
1.094
48.2 /9   
0.598 
 
66.2 /19  
0.830 
 
84.2 /29  
1.127
50.0 /10  
0.620 
 
68.0 /20  
0.857 
 
86.0 /30  
1.161
51.8 /11  
0.640 
 
69.8 /21  
0.884 
 
87.8 /31  
1.196
53.6 /12  
0.661 
 
71.6 /22  
0.912 
 
89.6 /32  
1.232
55.4 /13  
0.684 
 
73.4 /23  
0.941 
 
91.4 /33  
1.267
57.2/14 
 0.707  75.2 
/24 
 0.970  93.2 
/34 
 1.304