LME75.901A1PKG Siemens Flame Safeguard

Overview

The Siemens LME75.901A1PKG is a comprehensive flame safeguard package designed for the supervision and control of forced draft burners of medium to large capacity. This microprocessor-based burner control system is engineered for continuous operation (exceeding 24 hours), ensuring high-level safety and reliability in industrial and commercial combustion applications. The package simplifies procurement and installation by bundling the LME75.000A1 burner control base unit with the PME75.901A1 program module and a complete AGG3.710 terminal plug kit.

Features

• Integrated burner control and BC interface for connecting an AZL2 display unit or OCI460 gateway
• Multi-color LED signal lamp for real-time operating status and fault code messaging
• Digital signal handling for highly accurate control sequences
• Air pressure supervision with a functional check of the air pressure switch during start and operation
• Electrical remote lockout reset facility and undervoltage detection for enhanced safety
• Programmable safety parameters allowing for application-specific configurations
• Support for various flame detectors, including ionization probes, QRA7, or QRI sensors

Specifications

• Model: LME75.901A1PKG
• Components: LME75.000A1 base unit, PME75.901A1 program module, and AGG3.710 plug kit
• Operating Voltage: AC 120 V (50/60 Hz)
• Power Consumption: Approximately 3.5 VA
• Protection Rating: IP40 (ensure adequate protection at the installation site)
• Operating Temperature: -20 C to +60 C
• Design Lifetime: 250,000 burner startup cycles (approx. 10 years under normal conditions)
• Safety Level: Suitable for applications up to SIL3

Applications

• Supervision of 1-stage or modulating forced draft burners
• Industrial thermoprocessing equipment in accordance with EN 746-2
• Forced draft burners for gaseous or liquid fuels (EN 676 and EN 267)
• Direct or pilot-ignited burner systems requiring continuous operation
• Systems utilizing pneumatic/mechanical ratio control modulation or pulse width modulated fans