2-20 Installation and Operation 5707070-A
Advanced Energy
®
complete, you can then return the switch to the “A” side to preserve your new
settings. Again, be sure to close and carefully resecure the face of the display
panel when you are finished.
If you wish to further customize your flow meter system for operation in your process,
continue on to “Advanced Configuration Options” on page 2-20.
IF YOU EXPERIENCE UNSTABLE READINGS
A steady display and solid illuminated Echo lamp indicates a good signal. An erratic
display and/or a flashing Echo lamp indicates a poor signal. Reposition the transducer
heads until readings are steady and the Echo lamp is illuminated solid or select
another position to mount the sensors. Possible reasons for poor signals are:
• Partially full pipe
• Extreme aeration
• Insufficient suspended particles (minimum particle size and concentration are 40
microns at 35 ppm and greater than 0.2% density difference)
Any fluids with particle size/concentration less than the requirement listed above
should be measured with a transit time flow meter and not a Doppler flow meter.
• Extreme turbulence
• Interference from electric motors or motor controllers
If your meter readings do not stabilize, see “Troubleshooting the Unit” on page 3-1
and “Echo LED Light Considerations” on page 3-9 for further assistance.
Advanced Configuration Options
The display panel keypad has a secondary menu for advanced configuration options
(the keypad toggle menu). You may want to use this menu to set Analog output or to
select alarm setpoints. To access the secondary menu, you must press and hold the
keypad key for one second, and then when the display changes release the key. To
exit, press and hold the key again for one second and then release.
• Figure 2-10 on page 2-21 provides a visual representation of the toggle menu.
• Table 2-6 lists the advanced configuration options accessible from the display
panel keypad.
