18
Spectrum
TM
Membrane Temperature
Correction Factors
Find the temperature correction factor (TCF) in the table below. Divide the rated permeate flow at 25
°
C by
the temperature correction factor. The result is the permeate flow at the desired temperature
(see example).
If the system is rated to produce 18.9 lpm of permeate
water at 25
°
C, the same system will produce more
water at a higher temperature. It will also produce less
water at a lower temperature. Use the temperature
correction table to obtain the correct flow.
Example:
18.9 lpm @ 15
°
C (18.90 ÷ 1.422 = 13.29)
18.9 lpm @ 25
°
C (18.90 ÷ 1.000 = 18.90)
18.9 lpm @ 28.9
°
C (18.90 ÷ 0.892 = 21.19)
If service assistance is required, please complete the following process:
Contact the local dealer or distributor. Prior to making the call, have the following information available:
system installation date, serial number, daily log sheets, current operating parameters (e.g. flow, operating
pressures, pH, etc.) and a detailed description of the problem.
Service Assistance
Temperature (
°
C)
Temperature Correction Factor
10
1.711
11
1.648
12
1.588
13
1.530
14
1.475
15
1.422
16
1.371
17
1.323
18
1.276
19
1.232
20
1.189
21
1.148
22
1.109
23
1.071
24
1.035
25
1.000
26
0.971
27
0.943
28
0.915
29
0.889
