Omega Engineering FLR9000 series Marine Sanitation System User Manual


 
Inspection
1. Frequent inspection should be made. The envi-
ronment and frequency of use should determine
a schedule for maintenance checks. It is recom-
mended that it should be at least once a year.
2. Perform visual, electrical, and mechanical
checks on all components on a regular basis.
3. Visually check for undue heating evidence such
as discoloration of wires or other components,
damaged or worn parts, or leakage evidence
such as water or corrosion in the interior.
4. Electrically check to make sure that all connec-
tions are clean and tight and that the device is
wired properly.
VI. TROUBLESHOOTING
No LCD display
• For 4–20 mAoperation, check for current flow in
the loop.
• Check polarity of the current loop connections
for proper orientation.
• For 0–5 V or 0–10 V operation, check for proper
voltage being supplied to the unit.
• Check polarity of the supply voltage.
No rate or total displayed
• Check flow meter cone for debris. Cone should
move inside the tube freely.
• Check setup programming of flow meter.
Unstable Flow Reading
• This usually indicates pulsing or oscillation in the
actual flow. Increase the DAMPING parameter
to increase the filtering in order to provide a
more stable display reading.
VII. APPENDIX
Application Information – Liquid
Viscosity Effect (SUS/cSt)
The design utilizes a precision machined, sharp-edged
orifice and biasing calibration spring that assures
operating stability and accuracy over the wide viscosi-
ty range common to many fluids. Generally, high flow
models of each transmitter size provide good accuracy
over a viscosity range of 40 to 500 SUS (4.2 to 109
cSt).
Density Effect (specific gravity)
Any fluid density change from stated standards has a
proportionate effect on transmitter accuracy.
Corrections for more or less dense fluids can be made
to standard scales using the following correction fac-
tor:
for water/water-based transmitters
for petroleum-based transmitters
0.876
Specific Gravity
1.0
Specific Gravity
FLR Flow Transmitter
Installation & Programming Instructions
Page 15
Figure 9. Cartridge Components
0.876
Specific Gravity
1.0
Specific Gravity
0.876
Specific Gravity
1.0
Specific Gravity