KOHTECT BT-77
INTRODUCTION
This manual is intended for the study of the BT-77 bearing condition tester. The manual
contains description of the BT-77 bearing checker operating principle, operating
procedures of the intended use and bearing shock pulse evaluation concept.
1.0 BT-77 INSTRUMENT DISCRIPTION AND FUNCTION
1.1 Specification
1.1.1 Standard Conditions for Operation:
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, dB
i
, dB
c
, dB
m
;
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;
1.1.2 System Specification
Power supply, 3.6�� �iMH rechargeable battery.
Power supply, 3.6�� �iMH rechargeable battery.
Continuous operation on batteries, not less than 10 hours.
Continuous operation on batteries, not less than 10 hours.
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Summary of Contents for BT-77
Page 1: ...BT 77 Bearing Tester with Non Contact Tacho Operating Instruction Manual...
Page 2: ......
Page 4: ...KOHTECT BT 77...
