Milwaukee, WI: 414.332.6000 l Eagan, MN: 651.890.0720

Siemens LME7 Flame Safeguard

Siemens LME7 Flame Safeguard

  • UV scanner and flame rod sensor inputs
  • Programmable purge times, safety times, and pilot operation
  • Integral LED display for easy diagnostics
  • Globally approved – UL, FM, CSA, and CE
  • Programmable actuator positions for purge, ignition, and low fire
  • Adjustable time overlap of spark ignition transformer and pilot valve
  • Adjustable time overlap of pilot and main gas valves
  • Easy programming via AZL display
  • Proof of Closure switch monitoring
  • Optional gas valve proving function
  • Password protected access to OEM parameters

Description

Siemens LME7 Flame Safeguard sets a new standard for flexible, cost effective burner supervision. Ease of installation, programming and commissioning are incorporated into a reliable, field proven control. The LME7 offers flexibility not found in competitive flame safeguards, at a very attractive price.

Application:
LME7… are used for the startup and supervision of multistage or modulating forced draft burners and atmospheric gas burners in intermittent operation. The fuel-air ratio can be set either via an air damper actuator – acting on mechanical or pneumatic ratio control – or via pulse width modulated fans and pneumatic ratio control. The flame supervision supervised with ionization probe and with UV flame detector QRA2…, QRA4… or QRA10….

  • Applications in accordance with EN 267: Gas burners for liquid fuels
  • Applications in accordance with EN 676: Automatic forced draft burners for gaseous fuels
  • Applications in accordance with EN 746-2: Industrial thermoprocessing equipment – Part 2: Safety requirements for combustion and fuel handling systems
  • Type-tested and approved in accordance with DIN EN 298

LME7… Parameterized burner control for the supervision of multistage or modulating oil/gas forced draft burners and atmospheric burners of medium to higher capacity, in intermittent operation. With controlled air damper control

ACCESSORY PARTS:

Connectors & Cables
AGG3.710 – Connector plug set for LME7… Single pack
TDC COMBO – Cable and adapter for LME7

Programming Display & Operating
AZL23.00A9 – Programming display and operating unit for LME7 control

Flame Detectors
QRA10M.C – High Sensitivity UV Detector with aluminum housing, 1″ threaded mount for LME7
QRA4.U – UV Detector, 3/4″ Npt forward viewing application for LME7

Program Modules
(For gas burners, adjustable timing, POC contact)
PME71.111A1 – Programming module PME71
PME71.401A1 – Direct spark programming module for LME71, 110V
PME71.401A2 – Direct spark programming module for LME71 220V
PME71.402A1 – Pilot programming module for LME71, 110V
PME71.402A2 – Pilot programming module for LME71 220V
PME71.901A1 – Programming module with valve proving for LME71, 110V
PME71.901A2 – Programming module with valve proving for LME71 220V

PME73.810A1 – Direct spark for control of 3-step actuator, programming module for LME73, 110 V
PME73.810A2 – Direct spark for control of 3-step actuator, programming module for LME73, 220V
PME73.820A1 – Direct spark for control of actuator without potentiometer, programming module for LME73, 110 V
PME73.820A2 – Direct spark for control of actuator without potentiometer, programming module for LME73, 220V
PME73.830A1 – Pilot programming module for control of 3-step actuator for LME73, 110 V
PME73.830A2 – Pilot programming module for control of 3-step actuator for LME73, 220V
PME73.840A1 – Pilot programming module for control of actuator without potentiometer for LME73, 110 V
PME73.840A2 – Pilot programming module for control of actuator without potentiometer for LME73, 220V

Ask us for engineering or product support.
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SIEMENS LME7… FLAME SAFEGUARD UNITS:

US/Canada (UL Listed and CSA Certified)
LME71.000A1 – Flame safeguard base unit, LME7, 110 V
LME73.000A1 – Flame safeguard base unit including actuator sequencing, LME7, 110 V

LME71.111A1PKG – Flame safeguard unit, 110 V. LME71.000A1 assembled with PME71.111A1 and plug set kit

Metric (CE and EAC Approvals)
LME71.000A2 – Flame safeguard base unit, LME7, 220 V
LME73.000A2 – Flame safeguard base unit including actuator sequencing, LME7, 220 V

Technical Documentation

Siemens LME7 Flame Safeguard Technical Documentation