Technical Specifications​

Brand: Waukesha / Custom Engine Control

Model: E740401

System: CEC detonation sensing module

Supply: 24 VDC nominal

Mounting: panel or engine-mounted enclosure

Interface: piezoelectric transducer inputs, CEC ignition module link

Diagnostics: LEDs / local diagnostics

Communication: serial diagnostics interface

Functional Features​

Per-cylinder knock detection

Automatic ignition retard

Engine protection from destructive pressure spikes

Historical fault logging

Integration with CEC ignition module

Structural Features​

Industrial control module

Shielded sensor inputs

DIN/panel mountable housing

Status indicators

Material Composition​

Aluminum/steel enclosure

PCB with microprocessor

Connector terminals

Shielded sensor harness interface

Working Principle​

Piezoelectric transducers on cylinder heads detect pressure oscillation. The module analyzes knock intensity, compares it with calibrated thresholds, and commands the ignition module to retard timing for unstable cylinders.

Application Scenarios​

Natural gas generator sets

Industrial gas engines

Oil and gas compressor drives

Power generation packages

Stationary reciprocating engines

Installation Requirements​

Mount in vibration-damped location

Use shielded transducer cables

Ground module properly

Connect only to compatible CEC system

Usage Notes​

Do not operate with faulty transducer wiring

Avoid EMI on sensor cables

Configure sensitivity per engine specification

Power down before maintenance