Operation; 10.0 Maintenance - H2flow FLOWVIS Instruction Manual

FlowVis® - INSTRUCTION MANUAL
9.0

OPERATION

The FlowVis® is factory-calibrated to
be extremely accurate across its full
operating range. Any 'inaccuracy' is
related to the angle in which the scale
is 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.
NOTE: Slowly move your head in
this direction to the point where the
leading edge of the indicating arm is
not visible.
10.0 MAINTENANCE
Although FlowVis® is designed to be maintenance-free, periodic checks should be made
to the following:
Item Check for
'O' ring seal
Check for leaks
Valve Body Check for cracks or damage
Lid
Check for cracks or damage
Indicator Arm Check to see if sticking due to
build up of debris
Lid Air bubbles in lid
Remedy
Replace 'O' ring
Replace entire FlowVis®
Replace entire FlowVis®
Remove lid and fl ush out
debris
Check plumbing system for
air leak
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