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BT521
Users Manual
1-2
• Battery Voltage – During the internal resistance test, the Product also measures the
voltage of the battery under test.
• Negative Post Temperature – With the BTL21 Interactive Test Probe, the Product
measures the negative post temperature via an IR sensor near the black test tip.
During the test of battery internal resistance, the temperature reading shows on the
LCD display of the interactive test probe and is stored in the Product memory.
• Discharge Volts – The Discharge mode collects the voltage of each battery several
times at a certain interval during a discharge or load test. Users can calculate the
time a battery takes to drop to the cut-off voltage and use this time to determine the
capacity loss of this battery.
• Ripple Voltage Test – Measures the unwanted residual ac component of the
rectified voltage in dc charging and inverter circuits. Allows users to test ac
components in dc charging circuits and find one of the root causes of battery
deterioration.
• Current: Via the clamp accessory and adapter, the AC and DC current can be tested
and then stored in the memory.
• Meter and Sequence Modes – The Meter mode is used for a quick test or trouble-
shooting. In this mode you can save and read the readings in a time sequence. The
Sequence mode is for maintenance tasks with multiple power systems and battery
strings. Before a task starts, users can configure a profile for the task for data
management and report generation.
• Threshold and Warning – Users can configure a maximum of 10 sets of thresholds
and receive a Pass/Fail/Warning indication after each measurement.
• AutoHold – When AutoHold is turned on, the Product freezes the reading when it
remains stable for 1 second. The frozen reading is released when a new
measurement starts.
• AutoSave – When the AutoSave mode is on, measured values are saved to the
internal memory of the Product automatically after AutoHold.
• Fluke Battery Analyzer Software – Easily import data from the Product to a PC.
The measurement data and battery profile information is stored and archived with the
Analyzer Software and can be used for comparison and trend analysis. All
measurement data, battery profile and analysis information can be used to easily
generate reports.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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