Honeywell HERMetic UTImeter Gtex Chem, Operation And Service Manual

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11.4 Ullage and/or Interface troubles
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
Symptom Origin Action Section
The buzzer does not beep when
the unit is switched on
Buzzer switched off or Press on “-” to reactivate it 9.6
Key-pad defective or
Pressing on “+” has no action
Change the display unit
10.7
Buzzer defective
Press on “+”: “Settings” is displayed
Change the display unit
10.7
The buzzer tones continuously
when the sensing probe is
in air or liquid or water
Battery too low Change the battery 10.3
The buzzer gives the water
signal whatever liquid is gauged
Sensing head
contaminated by
conductive residues Wash, clean and brush (soft brush) the
sensing head or
change the sensor ---
10.5
The buzzer gives the oil
signal in water
Sensing head
contaminated by
non conductive residues Wash, clean and brush (soft brush) the
sensing head or
change the sensor ---
10.5
11.5 Temperature troubles
Symptom Origin Action Section
“> 90°C” or “> 194°F” is
displayed
Temperature to high
The temperature range shall be
< 90°C / 194 °F
---
“< -40°C” or “< -40°F” is
displayed
Temperature too low
The temperature range shall be
> -40 °C/F
---
Temperature does not
stabilise
Heated viscous liquid
(such as heavy crude
oils) Check the stability in cold and hot water;
if it is OK the problem is with the gauged
liquid and not with the probe
---
Contaminated sensing
probe
Clean the temperature electrode; remove
any residues or sludge; check the stability
in cold and hot water
---