Overview
The bi-directional shaft tachometer system consists of two proximity sensors, a signal conditioner (STC-206C) and an analog meter (STC-AMT). The sensors detect for the scanning target (mounted on the rotating shaft of the machinery) and produce a frequency signal which is converted into a linear output signal (by the signal conditioner) and fed into the analog meter.
Features
- Accurate and reliable
- Speed range from 0 rpm up to 2000 rpm
- Bi-directional operation (using a single target)
- Wide air gap between pickup and target (<= 5mm)
- Independent zero and span adjustments
- High quality, illuminated panel meter
- Able to drive two panel meters in parallel
Application
- Best suited for monitoring speed and direction of rotation of marine propeller shafts and other low to moderate speed machineries
Connection Diagram
Dimensions
Specifications
| Model | STC-206 |
| Scale Type |
Standard (200, 400, 500 or 600 rpm) Custom (Available on request) |
| Scale Range | 250 deg Deflection, 0 to 2000 rpm (per direction) |
| Scale Illumination | LED Illuminated Dial Operating Voltage: 24 VDC |
| Scale Calibration | Zero adjustment (electrical and mechanical), Span Adjustment (electrical) |
| Scale Accuracy |
+/- 1 % of full scale |
| Sensor | 2 x Proximity Switch (w/ bracket and scanning target) Detection Distance <= 5mm |
| Input Voltage |
24 VDC |
| Protection | Fused |
| Operating Temperature |
-20 to 50 degC |
| Operating Relative Humidity |
0 to 95% (non-condensing) |
| Construction | STC-AMT: Dust-Protected Plastic Case STC-206C: IP55 PVC Enclosure |
| Weight | STC-AMT: 500 g STC-206C: 450 g |
| Dimensions(mm) | STC-AMT: 100(H) x 110(W) x 85(D) STC-206C: 120(H) x 165(W) x 80(D) |
| Warranty | 1 Year |
Ordering Information (Part Numbers)
- STC-206C: Analog Signal Conditioner Unit for STC-206 System
- STC-AMT: Bi-Directional Analog RPM Meter
- STC-PXS: Proximity Sensor with 2m cable and connector
- STC-BKT: Bracket for STC-PXS (Proximity Sensors)
- STC-TGT: Magnetic Target with Belt and Clip (attached around propeller shaft)
- STC-206(SET1): Analog Bi-Directional Shaft Tachometer System consisting of 1 x STC-206C, 1 x STC-AMT, 2 x STC-PXS, 1 x STC-BKT, 1 x STC-TGT
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