Badger Meter Hydrometer - Manual (Page 10)

Section I
Paragraphs 1-49 to 1-54
1-49. REPAIR OF VALVES. If the valve becomes worn or
defective, replacement parts may be purchased from the
manufacturer. See Section II for detailed parts lists.
1-50. SHIPMENT.
1-51. The flowmeter should never be shipped unless carefully
boxed and fully protected. Floats, 3/8 inch and larger, must be
removed from tubes and wrapped separately to prevent
damage.
1-52. STORAGE.
1-53. If flowmeter is to be placed in storage, fill tube with oil
SAE-10 and open all valves.
CAUTION
For oxygen service flowmeters, clean with
Freon after storage.
1-54. TROUBLESHOOTING.
TROUBLE POSSIBLE CAUSE REMEDY
READINGS TOO HIGH Temperature of fuel below
specifications.
Viscosity of fuel higher than specified.
Dirty floats or metering tubes.
Leaks in gaskets in tubes of higher
capacity than tube being read.
Leak between instrument and test unit (if
on outlet side).
Correct temperature.
Use specified fuel if possible.
Clean (par. 1-40).
Replace gaskets (par. 1-44).
Check for and repair leakage.
READINGS TOO LOW Temperature of fuel above
specifications.
Viscosity of fuel lower than specified.
Leaks through bypass valves.
Leak between instrument and test unit (if
on inlet side).
Correct temperature.
Use specified fuel if possible.
Check valves are correct.
Check for and repair leakage.
READING INACCURATE
(EITHER HIGH OR LOW) Reading taken improperly.
Scales improperly set.
Eye must be on level with float top
(par. 1-35).
Align scale and tube red index lines
(par. 1-41).
FLOATS FLUCTUATE Pump surge reaches instrument.
Air in system.
Install surge trap or change pump.
Bleed air (par. 1-33).
FLOAT STICKS IN TUBE Tube or float dirty. Clean (par. 1-40).
EXCESSIVE PRESSURE DROP
THROUGH INSTRUMENT Closed bypass valves.
Float sticks.
Check and correct valves.
Clean float (par. 1-40).
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