M140P Series
A modern controller for mechanically governed diesel engines
The M140P is a rugged controller designed for mechanically governed diesel engines used in industrial, agricultural and off-road applications. Built for OEM installations or retrofit projects, the M140P replaces aging analog gauge panels while adding modern functionality, such as diagnostic logging, alarm history, and a full-color graphical display.
By combining simple mechanical-engine compatibility with features typically found on electronically controlled engines, the M140P delivers reliable start/stop logic (with the addition of our Auto-Start module), alarm protection, and clear operator feedback, without requiring an ECU or CAN-based engine interface.
Key Benefits
- Designed specifically for mechanically governed diesel engines
- Direct replacement for legacy analog gauge panels (software configuration required)
- Full-color 3.5″ LCD graphical display
- Integrated start/stop logic and alarm protection (With Auto-Start module)
- Diagnostic logging and alarm history
- Simple configuration with clear on-screen menus
Display & User Interface
The M140P features a bright, easy-to-read 3.5″ full-color graphical LCD display designed for harsh industrial environments.
Display Capabilities:
- Single-parameter or quad-parameter display modes
- Large numerical readouts for quick visibility
- Customizable data units (°F / °C, PSI / BAR, etc.)
- Adjustable screen backlight for varying lighting conditions
Diagnostics, Alarms & Logging
The M140P provides robust monitoring and troubleshooting tools to protect your engine and simplify maintenance.
Features:
- On-screen alarm pop-ups with audible buzzer
- Configurable shutdown inputs for critical engine conditions
- Alarm event log with timestamped records (based on engine hours)
- Alarm review screen accessible from the home menu
- I/O Status screen showing real-time input and output states
Safety & Engine Protection
The M140P supports multiple shutdown inputs to protect the engine from fault conditions.
Safety Inputs:
- High temperature shutdown switch input
- Low oil pressure shutdown switch input
- External safety / emergency stop input
- Two auxiliary shutdown inputs
Shutdown behavior and alarms are configurable to match the application requirements and can be set on any available input.
Control & Configuration
The M140P is configured using intuitive on-screen menus accessed through the front-panel keypad.
Control Features:
- Keyswitch-based start and stop control
- Configurable preheat and afterglow output
- User-settable engine hours (for replacement of legacy systems)
- Maintenance timer with configurable service interval
Configurable I/O
The M140P includes configurable analog and digital inputs that allow it to adapt to a wide range of mechanical engine setups.
I/O Capabilities:
- 7 Analog sender inputs for oil pressure, coolant temperature and fuel level or alarm inputs
- 2 Digital inputs for safety switches
- User-selectable sender types for proper scaling and display
- Alarm and shutdown assignment through the I/O Settings menu
Optional Auto-Start Capability
For pump and remote engine applications, the M140P supports an optional Auto-Start module that integrates directly into the controller harness.
When equipped with the Auto-Start option:
- The system enters a low-power standby mode with the display powered down
- A float switch or remote input triggers engine start
- The engine runs until the stop condition is met
- The controller shuts down the engine and returns to standby mode
Environmental & Electrical Summary
| Parameter | Specification |
|---|---|
| Operating Voltage | 10–32 VDC |
| Operating Temperature | −40°C to +70°C |
| Storage Temperature | −40°C to +80°C |
| Ingress Protection | IP66 (front) / IP67 (overall) |
| Display | 3.5″ TFT Color LCD (750 nit) |
Connectors
- (1) 12-Pin Deutsch DT04-12PA molded-in receptacle
- Mates with primary DT06-12SA
- (1) 12-Pin Deutsch DT04-12PB molded-in receptacle
- Mates with secondary DT06-12SB
Additional M140P Highlights
Typical Applications
- Industrial pump systems
- Generator and standby equipment
- Mechanical-engine retrofits and repowers
- Custom OEM machinery
- Off-road and mobile equipment
Industrial, mobile, OEM, and retrofit mechanical diesel applications.
Available Configurations
Configuration options include:
- DS3000 – Display only
- M140P00* – Controller with harness and key switch
- M140P10* – Controller in 8×7 black metal enclosure
- M140P20* – Controller in NEMA 4X enclosure
- Custom enclosure or panel
*Note: Auto-Start option available on select configurations.