Testing Sample Jars; String Summary Average - Midtronics CELLTRON MAX Instruction Manual

CELLTRON MAX

Testing Sample 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.
4. Test one jar five times in a row on float charge. Conduc-
tance 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.

String Summary average

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.
Midtronics Inc. 7000 Monroe Street Willowbrook, IL 60527
15
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www.midtronics.com