Hewlett Packard 4338A Miernik poziomu
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HP 4338B Milliohmmeter is a precise, reliable, and
high speed test tool for measuring low resistance.
Low and selectable test signal current: 1 µA to 10 mA
Wide measurement range: 10 µΩ to 100 kΩ
10 µΩ resolution
1 kHz ac measurement
High speed measurement: 34 ms
Auto measurement mode
■ Precise Low Resistance Measurement
Contact failure of electro-mechanical components in
low current circuits is a key issue in determining
these components’ reliability. The HP 4338B offers
selectable low level ac test signals (1 µA to 10 mA),
so now low current conditions can be characterized.
A high resolution of 10 µΩ allows you to determine
the slightest differences in contact resistance testing
of relays, switches, connectors, PC board traces, and
cables. The 1 kHz test signal eliminates potential
errors introduced by thermo-electric effects across
the DUT contacts. The 1 kHz ac test signal is the
best solution for evaluating the internal resistance
of batteries because it avoids dc energy consumption.
■ High Speed Measurements
The high speed (34 ms), built-in comparator, and
HP-IB/handler interfaces makes it possible to construct
a measurement system using an automatic handler and
an external computer to minimize production test time.
■ Auto Measurement Mode
When performing gross continuity testing where the
test signal level is not a significant factor in the
test, the auto measurement function allows the HP 4338B
to select the appropriate test signal level and measurement
1.21 Mbytes (1264911 Bytes)
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09 January 2013