Siemens Combustion QRA4M.U Scanner 323055-751 The integrated junction box simplifies

The integrated junction box simplifies field wiring

With an 8 1/4" O

5 PSID for a sustained period

This sheave is designed specifically for use with SDS series bushings to ensure proper fit and function

The E3SRMM facilitates a daisy-chain or remote mount configuration

Siemens Combustion QRA4M.U Scanner 323055-751 The integrated junction box simplifiesThe Siemens Combustion QRA4M. U is a high sensitivity UV flame scanner engineered for the rigorous supervision of gas or oil flames and ignition spark proving in intermittent burner operations. As a veteran grade flame detector, this sensor utilizes a specialized UV sensitive cell with two electrodes designed to ignite upon detecting radiation within the 190 to 270 nm spectral range. This ignition triggers the necessary current in the flame detector