Refer to the reference material at the end of this sales guide. Information about this point is included in the manual. This is because the internal backup capacitor is being charged. When batteries are first inserted or when batteries were fully depleted and are replaced (or when the AC adapter is connected), the unit will not come on for about 15 seconds. At HIOKI, we use these units in combination with the 3225 and the 3236.Īlthough it is not possible with the 3550 series, we will consider implementing such a capability in a future BATTERY HiTESTER/AC mΩHiTESTER. However, when the battery is shipped from the factory, it passes inspection as long as it falls between the upper and lower limits for both resistance and voltage. Therefore, when the comparator is found to be in the "IN"condition during battery maintenance work, a warning is generated. This is due to corrosion on the plates, loss of electrolytic solution, etc. When a battery is new, it has a low internal resistance, but as the battery deteriorates the internal resistance becomes larger.
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