11210 Battery Cell Insulation Tester
• Test voltage: up to 1KV(dc)
• Charge current: 50mA max.
• Wide range of Leakage Current (LC) measurement (10pA ~ 20mA)
• Partial discharge/flashover detection for inspection on potential internal short circuits (option of A112100):
– PD level and number of occurrence display
– PD events and V/I waveform monitor
– Programmable PD level limit setting
– PD and V/I waveform logging (option of A112101)
• Built-in reliable contact check
• Automatic test with sequence: charge-dwell-measure-discharge
• High speed testing (20ms/device)
• 480×272 pixels full-color display and touch panel for easy operations
• Standard Handler, USB, RS-232, Ethernet interfaces
Chroma 11210 battery cell insulation tester is an instrument used for accurately measuring leakage current (LC) and insulation resistance (IR) of battery jelly-roll/dry-cell as well as various insulation materials. In addition to standard LC/IR measurement, the 11210 has a unique function that detects partial discharge (PD) or flashover that may have occurred inside the insulation material during the high voltage insulation testing process. With PD detection of the battery’s internal status before electrolyte filling, defective products can be filtered out before entering the next stage of production preventing the potential hazards that may occur in the field. In contrast to traditional methods of insulation test, Chroma 11210 provides an entirely new concept for inspection and evaluation of battery quality.
With an ample charging current capability, the 11210 can easily achieve high speed testing with automatic execution of the test sequence. The sequence of a regular insulation test in the target application is “Charge→Dwell→Test→Discharge” This sequence can be automatically executed in 20ms or less for a single DUT (Device Under Test); meaning tests performed in the production line can achieve process rates of 50 pcs/sec or more.
Chroma 11210 measures the LC in a wide range, from 10pA to 20mA with 7 ranges of current measurement to enhance the accuracy. The auto-range function is also available for quick and easy operations on a new DUT.
Due to special circuitry used in the Chroma 11210, no extra time is required for the PD detection function. Both LC/IR measurements and PD detection tests can be performed simultaneously and both test results will be reported automatically. Thus, high speed testing at <20ms per DUT is achievable even when both LC/IR and PD tests are being performed. In a traditional insulation test, contact checking is critical to the reliability of a complete test. No-contact on the DUT is very likely treated as a "pass" during the test, while the real insulation test has not been executed on that DUT yet. Thus, a "falsegood" condition could occur and a defective DUT may be passed as good. This is especially true if the insulation resistance of the DUT is extremely high. The contact check function in the Chroma 11210 employs advanced technology to instantly detect those which do not make secure contacts during the tests. It takes only 5ms to do a thorough contact check before and/or after the measurement.
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