• 8 •
The analyzer features a backlit graphical LCD, a digital multimeter, and an SD (Secure Digital) fl ash
memory card for data storage and transfer to a PC. The analyzer software includes an icon-based
menu and pre-loaded data on over 200 battery models to expedite testing and record-keeping.
Test capability
The Celltron ULTRA tests lead-acid batteries that are 2, 4, 6, 8, 10, 12, 14, and 16 V. The analyzer
can test batteries providing power to a load (in service) or not providing power (not in service).
Measurements
The analyzer measures the status of a jar in voltages and conductance values. It displays conduc-
tance values in mhos (
). Ampere hours (Ah) are a typical measurement of jar capacity; however,
they are diffi cult to measure without knowing the load to which the jars supply power. Midtronics
recommends that you compare test results to a conductance reference value. For more information
about determining a reference value, refer to Chapter 3.
Test range
The analyzer has an operating range of 0 to 20,000 S. This range includes jars that have about 5 to
6000 Ah of reserve capacity.
Data storage
The analyzer’s SD memory card can store 480 test results per string for as many as 500 strings.
Tables 1 and 2 show the maximum number of jars you can test depending on the number of jar posts
and straps that you test.
Table 1: Maximum number of stored test results (jars only)
Number of jar posts Max. number of jars
2 480
4 240
6 160
8 120
Table 2: Maximum number of stored test results (jars & 1 strap)
Number of posts
per jar
Total straps for a
1-strap confi guration
Max. number
of jars
2 1 240
4 2 120
6380
8460
Chapter 1: Introduction Celltron ULTRA
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