Cadex Electronics Inc. C7000-C Series Battery Analyzers .
Results: Global display shows final battery capacity percentage. Detailed display shows
battery capacity percentages for the last three cycles performed. It also shows average
battery or cell voltage; analyzer charge or discharge current (in mA); OhmTest results;
battery temperature and duration of service.
Batteries in good condition should be greater than 80% or the target capacity. If batteries
fail, check the fault codes for details. If the capacity is low, the battery should be Primed
again. In some cases, two or three Prime programs may be required to fully form a
battery.
Duration: Approximately 24 hours for a NiCd battery charged and discharged at 1.00 C.
OhmTest
This OhmTest program uses a method similar to the IEC “DC” method to determine
the battery resistance. The results tend to be higher than analyzers with firmware
version 5.00 and below. Therefore, the OhmTest results cannot be compared with
results from analyzers with older firmware versions.
Ensure that battery contacts and adapter contacts are clean. Dirty contacts will affect
OhmTest readings.
Ensure battery has a high state of charge (SoC). If battery SoC is less than 50%,
OhmTest readings become less consistent.
Function: This program is similar to the IEC “DC” method of resistance measurement. It is
recommended that the battery have a high state of charge (i.e. fully charged) to provide
values. Low state of charge may produce poor or low values. The OhmTest program
determines the internal resistance of a battery and passes or fails the battery based on
the O
HM
T
EST SETPOINTS
. It provides an estimate of the battery capability to handle load.
Setting an O
HM
T
EST SETPOINT
is described below.
Sequence: The program tests battery resistance and compares the result with the
analyzer’s O
HM
T
EST SETPOINTS
for the battery chemistry. If the result is above this threshold,
the program fails the battery.
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