Principle Of Operation
Mechanical Installation &
Installation & Operating Considerations
and Maintenance Instructions
FLOWMETER-MECHANICAL INSTALLATION AND OPERATING CONSIDERATIONS
installed and ready to operate, open the bypass and bleed valves wide
before slowly starting fluid flow to the Microflowmeter. Allow the bleed
valve to remain open until air and vapors which may have been trapped
in the Microflowmeter have been "bled". If air and vapors are persistent,
turn the Microflowmeter upside down [compression fittings would be useful]
while it is running for a short time and then retum to upright position.
Close the the bleed and bypass valves and begin normal system operation. [The
depicted recommended installation is for systems operating with pressures
greater than 20 psi. The bypass and bleed arrangement can safely be
omitted from systems operating at lower pressures].
- If the
Microflowmeter is subject to hydraulic pulsations, check valves may
- If it
is necessary to disassemble the mechanical portion for cleaning or other
reason, ascertain that the nutator is installed with the inscribed arrow
pointing up [toward the electronic assembly]. Failure to do so may result
in loss of alignment of the motion detection mechanism. Use 4 - 5 foot
pounds of torque on the cap screws when reassembling.