B-144-12-E
38
14. TROUBLESHOOTING
Symptom
Possible Cause
Remedy.
1. Totalizer remains
inoperative.
1. Flowrate is low.
2. Insufficient pump pressure or head pre-
ssure.
3. Power line voltage is out of specification
of current carrying capacity of power
source is inadequate.
4. Battery has run down.
5. Oval rotors jammed with foreign matter;
rotors locked; metered liquid fails to run.
6. Oval rotors installed upside down.
7. Sensor installed out of position.
1. Air is entrapped.
2. Vaporized metered liquid in the piping
assembly.
3. Oval rotors revolving in contact with
measuring chamber.
1. Battery voltage is low.
1. Incomplete seal of the pipeline.
2. Incomplete seal on rear cover of meter
body.
1. Valve and pipeline leaks.
2. Air pockets between valve and Ultra
Oval; rotors in rocking motion in res-
ponse to pump's pulsating pressure.
3.Supply power voltage fluctuates.
1.Load resistance too great.
1. Rotors in rocking motion in response to
a pulsating flow.
2. Influenced by external magnetic fields
(Meter sensor picks up external magnetic
fields created by a motor, generator, etc.)
3. Air entrapped.
1. Influenced by external magnetic fields.
1. Open valves progressively
2. Taking pressure loss of entire piping
assembly into consideration, correct pump
pressure or head pressure.
3. Provide a 12-45VDC power to the register.
(12-24VDC for open collector or voltage
pulse output.)
Current carrying capacity 30mA min. is
required for power. (With analog output,
24VDC, 60mA min. is required.)
4. Referring to the instructions on page 37,
replace the battery pack.
5. Referring to Disassembly and Inspection
Procedure (page 19), disassemble meter
body and clean the rotors thoroughly.
6. Refer to "Basic Meter Assembly Pro-
cedure" in Disassembly and Inspection
Procedure (page 19) and reassemble
rotors correctly.
7. Refer to "How to Change Flow Direction"
(page 12)and reinstall the sensor.
1. Decrease flowrate and eliminate air in the
piping assembly.
2. Decrease flowrate and control metered
fluid temperature and pressure to prevent
vaporization.
3. Refer to Disassembly and Inspection Pro-
cedure (page 19) and disassemble and
inspect for condition.
1. Refer to page 37 and replace the battery
pack.
1. Inspect bolts at pipe connections for
tightness or replace gaskets.
2. Retighten bolts at pipeline connections
and replace O-rings (or gaskets) with new
ones.
1. Inspect valves and pipeline.
2. Vent air.
Provide a check valve and accumulator.
3. Eliminate voltage fluctuation.
1. Referring to "Load Resistance Range" on
page 14, check load resistance to power
supply voltage relationship and ensure it
to be within the specified range.
1. Add a check valve and accumulator.
2. Eliminate the influence from external
magnetic fields.
3. Provide an air vent.
1. Eliminate the influence from external
magnetic fields.
2. Unusual noise.
3. "BATT" flickers.
4. Liquid leaks.
5. Counts while valves
remain closed.
6. Analog output unusual.
7. Accumulated total
too high.
8. Accumulated total
too low.
