LME73.810A1PKG Siemens Flame Safeguard

Overview

The Siemens LME73.810A1PKG is a comprehensive flame safeguard assembly designed for the startup and supervision of 1-stage, 2-stage, or modulating gas or oil burners in intermittent operation. This package combines the LME73.000A1 basic unit with the PME73.810A1 program module and a matching plug kit. It is a microprocessor-based system that ensures high-precision control and enhanced safety for medium to high-capacity industrial and commercial combustion plants. The unit features integrated actuator control and is engineered to manage critical functions like prepurge, ignition, and flame supervision with high reliability.

Features

• Integrated actuator control via 3-position controller or analog signal for precise air/fuel ratio management
• Digital signal handling ensures accurate control sequences and repeatable performance
• Multicolor LED signal lamp and 3×7-segment display for clear status, service, and error information
• Proof of Closure (POC) monitoring for enhanced safety by checking valve positions
• Adjustable safety parameters to tailor the safeguard to specific application requirements
• Support for multiple flame detection methods including ionization probes and UV flame detectors
• Air pressure supervision with functional checks of the air pressure switch during startup and operation
• BC interface allows for connection to remote display units or PC communication tools

Specifications

• Model: LME73.810A1PKG
• Operating Voltage: AC 110 V – 120 V (50/60 Hz)
• Included Components: LME73.000A1 (Basic Unit), PME73.810A1 (Program Module), AGG3.710 (Plug Set)
• Operation Type: Intermittent (at least one controlled shutdown every 24 hours)
• Protection Rating: IP40 (when properly installed)
• Approvals: UL, FM, CSA, CE (varies by region/variant)
• Weight: Approximately 1.2 lbs (0.54 kg)
• Operating Temperature Range: -20 C to +60 C

Applications

• Industrial and commercial forced draft gas and oil burners
• Modulating or multistage burner systems requiring integrated actuator control
• Atmospheric gas burners of medium to large capacity
• Boiler rooms, furnaces, and thermal process heating plants
• Retrofitting existing burner systems with advanced, linkageless flame safeguard technology