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Leader LF826 550 MHz Frequency Counter by US Instrument
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Product Description
Leader LF826 550 MHz Frequency Counter
Rent me for $100 a month
Incorporating the latest developments in counter
technology the Leader LF826 extend high resolution readings over
very wide frequency ranges and make use of calculator modes to meet
the needs of assembly line and quality control applications. A
technique of high speed reciprocal counting is applied to input A
signals to produce high resolution at low frequencies. (Older
counters required period readings with calculated reciprocals to
obtain similar resolution). Direct counting is applied above 10 MHz
and a prescaler technique is applied to B input signals above 80
MHz. The result is accurate, high-resolution reading across the
entire frequency range.
Measuring modes include frequency, period, relative,
totalizer and RPM for input A signals. Automatic and manual trigger
levels are also applied to input A signals to suit trigger
conditions to signal characteristics and to achieve stable readings
in the presence of noise. A switchable low pass filter, cutoff
below 100 kHz, allows accurate low frequency readings in the
presence of RF interference. Sensitivity is excellent: 15 mV rms
for input A and 10 mV rms for the B (prescaler) input. Built-in
calculation capabilities include relative and a LO-GO-HI comparator
judgment modes. The relative mode works from an operator-preset
parameter and reads out the deviation from that preset value with
7-digit resolution. The comparator function works with a pair of
preset parameters and indicates low, within limits, or high
readings by means of front panel LO, GO or HI LED's. Timebase
accuracy is ± 3 ppm.
Features
- Extended Low Frequency Range to 0.1 Hz
- High Speed Reciprocal Counting at Low Frequencies
- Frequency Period, Totalize, Relative and RPM
- 3ppm Time Base Accuracy Standard
- Relative Mode From a Preset Reference
- LO-GO-HI Judgement with Preset Limits
- High Sensitivity
- Auto-Triggering Minimizes Errors on Noisy Signals
- EMI Protection
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