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Bearing Condition Analyser 77D11

Bearing Condition Analyser 77D11
Bearing Condition Analyser 77D11
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Product Code : 77D11
Price And Quantity
  • Minimum Order Quantity
  • 1 Unit
Product Description

Bearing Condition Analyser 77D11 with Non-Contact Tacho


Ideally, rolling bearing elements are separated by a protective lubricant film, which impedes their collision. However, manufacturing defects, damages, which appear during operation, dirt in the bearing, insufficient or incorrect lubrication – all these factors cause the collision of the bearing elements and, as a result, acoustic oscillations of a wide spectrum are generated in the bearing body.



·      Operating temperature (device & sensor), -10 to 55°С, (±5)°С

·      Relative humidity 80% at temperature 30 °С

·      Atmospheric pressure, 84 to 106.7 KPa (630 - 800 mm Hg)

·      Resonance frequency, 32 kHz

·      Measurement unit, dBi, dBc, dBm

·      Range, max. 99dB

·      Resolution, 1 dB

·      Accuracy, ± 5%

·      Operating temperature (tacho), 10 to 55°С, (±5)°С

·      Tachometer range, 50-30,000rpm

·      Tachometer resolution, 1rpm

·      Tachometer sensing distance, up to 1m

·      Memory capacity, 2MB

·      PC communication port, USB


System Specification:

·      Power supply, 3.6V NiMH rechargeable battery.

·      Continuous operation on batteries, not less than 10 hours.

·      Current consumption 220V, 50 Hz AC, not more than 5VA.

·      The limits of complementary error of the instrument at voltage changing from 3.6Volts to 2.8Volts.

·      Probability of no-failure operation, not less than 0.92 per 2000 hrs.

·      The average instrument life, not less than 10 years.

·      Failure time, 1000 hours. The average failure time is set for standard conditions for operation.

·      Dimensions, not more than 60 х 110 х 30 (mm).

·      Weight, not more than 210gram.


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