Xylem EX80-Series INSERTION MAGMETERS - Manual (Page 12)

LT-65200203-J
8/4/10
Problem Probable Cause Try...
Check plumbing
Check the presence of Flow LED (see pg. 9)
Connect to earth ground
Check for proper electrical wiring
Check for power across power
input terminals
Note flow direction arrow,
reverse direction of meter
Reverse connections
Change output connections
Select another flow meter
Check for proper ground
Check for proper electrical wiring
Select another flow meter
Check for full pipe or install meter in the verti-
cal position
Check for ten diameters upstream AND five
diameters downstream
Install chemical injection line downstream of
magmeter (or far enough upstream to allow
complete mixing of fluids before meter)
Pipe not full
Below minimum flow cutoff
Unit not grounded
Excessive electrical noise
No power
Flow reversed
Power reversed
Output connections reversed
Fluid conductivity <20 microSiemens/cm
Missing or incorrect ground wire
Excessive electrical noise
Fluid conductivity <20 microSiemens/cm
Empty pipe
Not enough straight pipe
Rapidly changing conductivity (in chemical
injection or fertigation applications)
CAUTION & TROUBLESHOOTING
Seametrics Incorporated • 19026 72nd Avenue South • Kent, Washington 98032 • USA
(P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • www.seametrics.com
TROUBLESHOOTING
Caution: The electronics of the EX-Series meters are not field-repairable.
Warranty is void if unauthorized repair is attempted
No pulse output
Output pulses
incorrect
Jumpy reading