Shaft Tachometers

Shaft Speed Tachometer System

STC-207 (DIGITAL)

Overview

The Bi-Directional Shaft Speed Tachometer System consists of two proximity sensors, a Signal Conditioner (STC-207C) and a Digital Display (STC-DMT). The sensors detect the metallic target (mounted on the propeller shaft or other machinery shaft) and produce a frequency signal which is read by the Signal Conditioner. The Signal Conditioner will send data via a RS-485 data link to the digital display which shows the RPM readings.

 

Features

  • Highly accurate (accurate within 1 rpm)
  • Reliable operation
  • Speed range from 0 rpm up to 1500 rpm
  • Bi-directional operation (using a single target)
  • Wide air gap between pickup and target (<= 5mm)
  • Independent zero and span adjustments
  • High quality, illuminated digital meter (with RPM scale and digital RPM readout)
  • Panel Mountable Digital Meter (DIN Box)
  • Auto dimming LED display
  • Able to interface to more than 10 digital meters!
  • Able to work across long cabling distances (up to 300 meters)

 

Application

  • Best suited for monitoring speed and direction of rotation of marine propeller shafts and other low to moderate speed machineries

Ordering Information (Part Numbers)

  • STC-207C: Digital Signal Conditioner Unit for STC-207 System
  • STC-DMT: Bi-Directional Digital 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-207(SET1): Digital Bi-Directional Shaft Tachometer System consisting of 1 x STC-207C, 1 x STC-DMT, 2 x STC-PXS, 1 x STC-BKT, 1 x STC-TGT

 

STC-206 (ANALOG)

 

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 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

Shaft Speed Tachometer Connection Diagram

 

Dimensions

Shaft Speed Tachometer 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 CaseSTC-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

 

Subcategories

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