DRYDEN AQUA FlowVis 90024 Manual De Instrucciones página 4

Operation & Maintenance
OPERATION
The FlowVis® is factory-calibrated to be extremely accurate across its full operating range. Any perceived 'inaccuracy'
is related to the viewing angle at which the scale is being read. To avoid so-called 'parallax error', it is important to
position your eye so that you are looking squarely at the tip of the indicator arm. To achieve this, simply move your
head so that you just lose sight of the vertical leading edge of the red arm.
(1) Indicator arm is (2) Indicator arm
being viewed too far is being viewed
forward / near the correctly.
rear of the lid.
MAINTENANCE
Although FlowVis® is designed to be maintenance-free, periodic checks should be made to the following:
Condition
Leak around lid seal
Leak from lid
Higher fl ow reading than normal
Lower fl ow reading than normal
Flow indicator stuck at one position
Indicator always at max fl ow when pump
running
Flapper seal crinkled
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(3) Indicator arm is
being viewed too far
back / front of the lid.
Check for
O-Ring Failure
Cracks in lid
Broken or weak spring
Indicator arm stuck due to debris
Debris between indicator arm and lid
Broken spring
Chlorinator check valve failure
4
NOTE: Slowly move
your head in this
direction to the
(1)
point where the
leading edge of the
indicating arm is
not visible.
Vertical leading edge
Remedy
Replace O-Ring
Order new lid from supplier
Replace spring
Remove lid and clear debris
Remove lid and clear debris
Replace spring
Repair chlorinator, order FlowVis® Service
Repair Kit. Consider moving FlowVis® to a
diff erent location (see 'Chlorine Feeders'
section on pg. 3).
(2)
(3)