LME73.811A1PKG-PRG3 Siemens Flame Safeguard

Overview

The Siemens LME73.811A1PKG-PRG3 is a high-performance, microprocessor-based burner control system designed for the startup and supervision of multistage or modulating forced draft burners and atmospheric gas burners. This specific package is preprogrammed for specialized configurations and includes the LME73.000A1 basic unit, the PME73.811A1 program module, and a complete plug set. It is engineered to provide flexible and cost-effective burner supervision with integrated actuator control, ensuring optimal fuel-air ratio management in industrial and commercial combustion applications.

Features

• Digital signal handling for accurate control sequences and reliable operation
• Integrated actuator control for driving and proving positions during purge and ignition
• Multicolor LED signal lamp for clear status indication and error diagnostics
• Integrated BC interface for connection to remote displays (AZL2) or PC software
• Undervoltage detection and electrical remote lockout reset facility
• Air pressure supervision with a functional check of the air pressure switch during startup
• Support for multiple flame supervision methods, including ionization probes and UV detectors
• Preprogrammed (PRG3) configuration for streamlined installation in specific burner setups

Specifications

• Model: LME73.811A1PKG-PRG3
• Operating Voltage: AC 120 V (50/60 Hz)
• Component Set: LME73.000A1 unit, PME73.811A1 module, and plug kit
• Operation Mode: Intermittent (controlled shutdown every 24 hours)
• Housing Material: Durable, impact-resistant plastic
• Protection Rating: IP40 (when properly installed)
• Temperature Range: -20 C to +60 C (-4 F to 140 F)
• Weight: Approximately 5.0 lbs (2.27 kg)

Applications

• Supervision of modulating or multistage forced draft oil and gas burners
• Ideal for packaged burner systems requiring precise linkageless control
• Industrial thermal process plants and high-capacity boiler systems
• Applications requiring valve proving and automated air damper control
• Integration with SQM4 or SQM5 actuators for closed-loop fuel-air ratio management