MODEL 51240B/53540B/53640B/61240B/63540B/63640B
35
T5=12×H
R
（min.）
Generally, the water for fast rinse is 3～6 times of resin volume. It is
suggested to be set 10～16 minutes, but subject to the outlet water
reaching the requirement.
⑥ Exchange factor
Exchange factor =E/ (k×1000)
In this formula, E——Resin working exchange capability（mol/m
3
）， it
is related to the quality of resin. Down-flow regeneration, take 800～900.
Up-flow regeneration, take 900～1200.
K——Security factor, always take 1.2～2. It is related to the hardness
of inlet water: the higher the hardness is, the bigger the K is.
⑦ Regeneration time:
The whole cycle for generation is about two hours. Please try to set up
the regeneration time when you don’t need water according to the actual
situation.
The calculation of parameters for each step is only for reference, the
actual proper time will be determined after adjusting by water exchanger
supplier. This calculation procedure of softener is only for industrial
application; it is not suitable for small softener in residential application.
3.5. Parameter Inquiry and Setting
3.5.1. Parameter Inquiry
When lights on, press and hold both and for 5 seconds to lift
the button lock status; then press and lights on, enter to program
display mode; press or to view each value according to below
process.（Press exit and turn back to service status）
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