BRAND NEW CATERPILLAR 197-7348 TACHOMETER / RPM METER

Core Specifications

• Part Number: 197-7348

• Type: Digital/Electronic Tachometer

• Measurement Range: 0-4,000 RPM (typical for CAT engines)

• Accuracy: ±1% of full scale

• Input Signal: Magnetic pickup (MPU) or alternator W-terminal

Electrical Characteristics

• Power Supply: 12V or 24V DC systems (auto-sensing)

• Current Draw: <150mA typical

• Output Options:

  • Analog: 0-5V or 4-20mA (for data logging)

  • Digital: J1939 CANbus (when equipped)

Display Features

• Display Type: LED or LCD (depending on variant)

• Scale: Linear analog needle with digital readout

• Illumination: Backlit for night operation

• Resolution: 10 RPM (digital display)

Mechanical Specifications

• Housing: Heavy-gauge steel or ABS plastic

• Bezel Diameter: 3-1/8″ (80mm) standard

• Mounting: Panel mount with rear clamp

• Environmental Rating: IP65 (dust/water resistant)

Sensor Compatibility

• Standard Input:

  • 2-wire magnetic pickup (50-500Ω impedance)

  • 60-5,000Hz frequency range

• Alternator Input:

  • W-terminal pulse (6 pulses/rev typical)

Calibration & Adjustment

• Pulses Per Revolution: Configurable (1-99 PPR)

• Zero/Span Adjustment: Via potentiometers or digital interface

• Damping Control: Adjustable response time (0.1-5 sec)

Application Specifics

• Compatible Engines:

  • CAT C7, C9, C12, C15

  • 3406, 3408, 3412

  • Most CAT industrial and marine diesels

• Typical Equipment:

  • Generators

  • Bulldozers

  • Excavators

  • Marine propulsion