Wema Tachometer 4000RPM

The Wema 4,000 RPM tachometer (Part 110912) is an analogue engine monitoring instrument designed for integration into marine vessel dashboards. This gauge provides a continuous visual indication of engine rotational speed, serving as a primary interface for monitoring engine performance and tracking operational hours. The unit features a black dial face with white numerals and a white needle, offering high contrast for readability.

Key Features

• Anti-Fogging Lens: Equipped with a dual-layer, anti-fogging glass lens to maintain visibility in high-humidity and temperature-variable environments.
• Integrated Hour Meter: Features a built-in LCD screen to track cumulative engine running hours for maintenance scheduling.
• Integrated Backlighting: Internal illumination ensures the scale remains clearly visible during night-time operations.
• Calibration Control: Includes an adjustment button on the rear housing to calibrate the unit to various engine pulse outputs.
  
• Signal Flexibility: Compatible with multiple input sources, including alternator 'W' terminals and inductive sensors.

Technical Specifications

• Part Number: 110912
• Display Range: 0–4,000 RPM
• Operating Voltage: 12V / 24V DC
• Mounting Hole Diameter: 85mm (3-3/8")
• Ingress Protection Rating: IP67 (front-facing), ensuring protection against dust ingress
• Face Colour: Black
  
• Excellent anti-fogging performance
  
• Plastic black bezel with curved glass
• Easy-fit connector block and loom included
• Red or Yellow Switchable LED Backlight
• Pickup Options:
  
  • 1. Ignition coil (W)
  • 2. AC tap on alternator
  • 3. Inductive pick-up off flywheel (Tacho speed sensor)
  • 4. Pulse generator on crank shaft
  • 5. Wire from Engine Control Module (ECM)