Hioki BT3554-51 - Measurement Procedures; Inspection Before Measurement

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3
Measurement
To ensure safe operation, be sure to read “Operating Precautions”
(p. 11) before starting the measurements.
• There is a considerable di󰀨erence in the battery’s internal
resistances between a full-charge state and a discharge state.
To improve evaluation accuracy, perform measurements under
a constant condition (for example, in a full-charge state).
• Terminals of lead-acid batteries (objects under measurement)
have a high resistance. Thus, resistance values may di󰀨er
between contact locations, the case side and the tip of the
terminals. Place the test lead into contact with the terminals at
the same location every time.
See “11.4 E󰀨ects of Current Density” (p. 157).
• Use the 9460 Clip Type Lead with Temperature Sensor
(option) to measure the temperature of the battery terminals.
Otherwise, use a non-contact thermometer, such as a radiation
thermometer, for safety.
• If terminals are covered with an insulating layer, the
measurement current cannot ow su󰀩ciently, resulting in
measurement failure. In such a case, clean the terminals to
remove the insulation layer before measurement.
3 Measurement
HIOKI BT3554F961-00HIOKI BT3554F961-00