•
25
•
Notes:
•
The
fi
rst time you turn on or connect the Celltron ULTRA, it will display a reminder to set
preferences for the temperature units (Celsius or Fahrenheit) and the jar and string WARN/
FAIL thresholds. Although you can press the
BACK
key to bypass the message, it will continue
to appear until you change or accept the default settings.
•
To protect its circuitry, the analyzer will not turn on if the clamps/probes are connected in
reverse polarity (red to negative, black to positive).
•
Power outages can affect test results. Do not test the string if a power outage occurred
recently and the string is boost-charged.
•
If the last
fi
le created, opened, or used does not match any
fi
les on the memory card, the
analyzer will beep and display FILE NOT FOUND. The analyzer’s internal EEPROM memory
stores the last test used. When the analyzer powers on, it looks for the last
fi
le used on the
memory card. To prevent the message from reappearing, insert the card containing the
fi
le,
open an existing
fi
le, or create a new
fi
le on the card.
Testing a sample of jars
1. Choose at least 30 jars from one manufacturer with the same make, model, power rating, age
(within 6 months), and service history.
2. Record this information about the jars:
•
Jar
manufacturer
•
Model
number
•
Date of manufacture
•
Date of installation
•
Condition in which the jar operates, such as charge voltage (volts per cell), temperature,
and DC current through the jar
•
Visible warnings, such as leaking acid, corrosion, or distorted jar cases
3. Test the jars. See
Chapter 6: Testing
.
4. Test one jar
fi
ve times in a row on
fl
oat charge. Conductance results should be within
±
2% of
each other.
NOTE:
If the test results do not conform to this pattern, an electrical signal might be present
in the system.
5. Calculate the average conductance of the jars. Do not include jars that are higher or lower
than 30% from the average because they might be outside an acceptable range.
Using the average in
STRING SUMMARY
If you cannot obtain a reference value for a string, test the string and use the average conductance
value (AVG. MHOS) in the STRING SUMMARY as your reference value. If jars in the string have
been replaced recently, test the new jars, especially if they correlate to the HIGH jar value in STRING
SUMMARY. For more information, see
Chapter 7: Test results
.)
Chapter 3: Determining a reference value
Celltron ULTRA
Содержание Celltron ULTRA
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