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11.4 Ullage and/or Interface troubles
Symptom
The buzzer does not
beep when the unit is
switched on
The buzzer tones
continuously when the
sensing probe is in air or
liquid or water
The buzzer gives the
water signal whatever
liquid is gauged
The buzzer gives the oil
signal in water
11.5 Temperature troubles
Symptom
"> 90°C" or "> 194°F"is
displayed
"< -40°C" or "< -40°F" is
displayed
Temperature does not
stabilise
11.6 Visual inspection for damaged or missing parts
General condition: missing parts
Display unit: 5-key control pad, buzzer, front face, LED, screen
Sensing probe: sensors broken, smashed or damaged
Tape: check at least the first 3 m; wires still insulated, no breaks, no kinks, ...
Mechanical parts: check housing, lid, axle, storage tube, wipers of tape cleaner, window wiper
50461/GTEX MMC/1111
Origin
Buzzer switched off or
Key-pad defective or
Buzzer defective
Battery too low
Sensing head
contaminated by
conductive residues
Sensing head
contaminated by non
conductive residues
Origin
Temperature to high
Temperature too low
Heated viscous liquid
(such as heavy crude
oils)
Contaminated sensing
probe
Action
Press on "-" to reactivate it
Pressing on "+" has no action
Change the display unit
Press on "+": "Settings" is displayed
Change the display unit
Change the battery
Wash, clean and brush (soft brush) the
sensing head or
change the sensor
Wash, clean and brush (soft brush) the
sensing head or
change the sensor
Action
The temperature range shall be < 90°C /
194 °F
The temperature range shall be > -40
°C/F
Check the stability in cold and hot water;
if it is OK the problem is with the gauged
liquid and not with the probe
Clean the temperature electrode; remove
any residues or sludge; check the stability
in cold and hot water
47
Section
9.6
10.7
10.7
10.3
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10.5
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10.5
Section
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UTImeter Gtex MMC
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