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Event Data Recorder
FRA & IEEE 1482.1-1999 Compliance
Vigilance Systems (Alerter)
Horn Sequencer
Auxiliary Light Control
Integrated Speedometer Control
Remote Download Port

Integrated Systems
TraxSyte® - Digital Video Recording System
Priority Alarm System

Speed Indicators
Analog Speed Indicator
LED Speed Indicator
Digital Speed Indicator
Model 7 Speed Verifier

Axle Alternator
Doppler Speed System
Isolation Amplifier 54114
Traction Motor Current Monitor

Control Systems
Automatic Ground Protection Relay Reset (AGPRR)
Engine Temperature Controller
Electronic Power Filter
Electronic Transition Control

Diagnostic Test Equipment
Automated Bench Test Equipment
Railroad Multimeter

Analog Speed Indicator

This solid state speed indicator maintains a traditional analog presentation, yet incorporates the accuracy of microprocessor control allowing constant display accuracy to be maintained. It is designed for the harsh and rugged environments of locomotives and other rail vehicles.

Our analog indicator is interchangeable with the electrical connections and mounting brackets of older analog models, which makes this unit a convenient and economical replacement. Available in base-mount or console mount models.

Options available include a wide variety of speed scales, an odometer as well as multiple speed controlled relay outputs.

At Bach-Simpson™, we offer state-of-the-art products combined with dependable customer service and customized engineering support. Remember, when you buy Bach-Simpson™, you buy experience, quality and dependability.

Electrical Specifications

    Power Input:
    • +74 VDC nominal at 0.35 amp
    • 50 to 90 volts sustained performance range
    • Reverse polarity and transient protected
    • Case Electrically Isolated from supply

    Speed Signal Input:
    • 20 or 60 pulses per wheel revolution
    • 100 volts maximum
    • Input impedance: 47K ohms
    • Power input isolated from signal input

    Temperature Range:
    • Operating: -30°C to 50°C
    • Storage: -55°C to 60°C

    External Connectors:
    • Conforms to MIL-C-5015


Functional Specifications

    Speed Range (mph or kph):
    • Nominal ranges available: 0-50, 0-90, 0-100, 0-120 or 0-150
    • Optional Dual Range

    OverSpeed (2 Standard):
    • Relay contacts open at selected speed
    • Relay contacts protected against shorts and transients
    • Relay contacts isolated from supply
    • 4 overspeed outputs available

    • 0.25 mph

    Speed Maximum Error:
    • 1% of full scale

Specifications subject to change without notice, contact Bach-Simpson™ for latest information.

Ordering Information

    • Analog Speed Indicator

    Part Number:
    • 52223-XXXX (XXXX defines range and configuration)


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