are less consistent. 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 OHMTEST SETPOINTS. It provides an estimate of the
battery capability to handle load. Setting an OHMTEST SETPOINT is described below.
Sequence: The program tests battery resistance and compares the result with the
analyzer’s OHMTEST SETPOINTS for the battery chemistry. If the result is above this
threshold, the program fails the battery.
Results: Global display shows internal resistance in milliohms (mΩ). Detailed
display also shows average cell voltage; analyzer charge or discharge current (in
mA); battery temperature and duration of service.
If the value is above the analyzer’s OhmTest setpoint threshold, the battery fails the
OhmTest and should be replaced. If the battery passes, run the Auto or Prime
program on the battery to determine whether there are other faults.
Compare several good and bad batteries to determine a suitable OHMTEST
SETPOINT
.
Duration: 15 seconds for all chemistries.
To edit the OhmTest Setpoint
1. From the global display, press MENU.
2. Press or to scroll to PROGRAM SETTINGS and then press ENTER.
3. Press or to scroll to OHMTEST SETPOINTS and then press ENTER.
4. Press or or use the number pad to set the OhmTest setpoint for
the first battery chemistry type.
The default setpoint is 1000mΩ but any setting between 0 and 4000mΩ can be
chosen.
5. Press or to move to the next battery chemistry type.
6. Repeat steps 4 and 5 until the OhmTest setpoint for all battery
chemistries are set appropriately.
Cadex Electronics Inc. C7000-C Series Battery Analyzers .
36
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