Alpha Technologies Celltron Essential CTE-1200 AT; CTE-2200 AT; CTE-3200 AT - Manual (Page 16)

 10 
Note:
The reference values from
SITE SUMMARY
and the website are
guidelines only. Midtronics updates the website with new reference values
as they are created. If you create a reference value for a jar model, e-mail the
value and information to [email protected] or fax it to 630. 323. 7752
(Attn: Reference value list).
Testing a sample of jars
To test a sample of jars for a reference value:
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 the jar operates in, 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. Refer to “Chapter 3: Testing.”
4. Test one jar five times in a row on float charge. You should get the same
conductance result.
Note: If the test results do not conform to this pattern, an electrical
signal might be present in the system.
5. Figure the average conductance of the jars.
Note: 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 SITE SUMMARY
If you cannot obtain a reference value for a site, test the strings in the site and use the average
conductance value (
AVG. SIEMENS
) in the
SITE SUMMARY
menu as your reference value.
If jars in the site have been replaced recently, test the new jars, especially if they correlate to the
HIGH jar value in SITE SUMMARY .