Oil fired Burners/ Boilers :
107 - S - 60, 107 - S - 30 (Standard models with pre purge time of 60 Seconds and 30 seconds)
107 - S - FO ( controller for furnace oil)
107 - M ( suitable for Nestler Boilers)
107 - TU
LS - 107 (suitable for IAEC make boilers)
150 - P - 6 (equivalent to MA - 150 Controller)
Gas Fired Burners / Furnaces with UV flame sensing.
Without Pilot flame proving :
307 - GI - S Gas controller, with inbuilt UV Amplifier.
307-GE - S, Gas controller, with external UV AmplifierWith Pilot Flame, Damper, Blower and Iginition terminals :
307 - GID - P ( inbuilt Amplifier) & 307 - GE - P ( with external amplifier)
For Gas fired Burner / Furnaces with Flame Rod sensing :
207 - FR-S, with pilot valve option.
207 - FRD - AP21 without Pilot. (functionally compatible to LGB - 21 ) Controller.
UV SENSOR AND AMPLIFIERS
UV Flame Sensor designed by Linear Systems uses very sensitive electronic UV tube. The specially tuned UV tube is designed to detect UV radiations emitted by the naked flame. The UV Flame Sensor is insensitive to normal light and refractory glow in furnace walls. UV Sensor is ideally suited for detecting all types of flame, namely flames due to Gas / Coal / Oil fired burners in Boiler and Furnaces.
UV Sensor ( Model UV - 01 -AJ ) has been specially designed for harsh industrial environment. It provides for easy cleaning of the UV Sensor and viewing of the flame. UV Flame sensor is housed in a metal jacket to provide mechnacial protection and various mounting features.
UV Flame Amplifier / Relay (Model UV - FR - 01 ) is used in conjunction with UV Flame Sensor to detect various types of flames namely gas, oil, coal etc. The UV Flame Amplifier is essentially a stand alone unit, which has Two Potential Free relay contact outputs rated at 230 V AC, 5 Amps. The out put contacts can be used for alarm, annunciation or trip purposes. The ftont panel has indications for SUPPLY ON. This will turn ON when the supply is given. RELA Y ON indicator presence of UV radiation / flame.
Model UV - FR - 21, has a site adjustable time delay of 2 - 8 seconds and is useful for installations with high flicker situation.
UV Flame Amplifiers / Relay has been designed to work with Limear Systems make UV Sensor UV - 01. However, it has been found working satisfactorily with UV Sensors of various other makes, namely Honeywell, Landis & Gyr, Satronic etc. It is important to ensure that the various makes is rated 230 V AC.rms
FLAME ROD AMPLIFIER
LINEAR SYSTEM's Flame rod sensor senses the flame using flame detection rectification technique. The Amplifier provides a voltage for the Flame Electrode. The flame electrode is immersed in flame to sensed. The current thus generated by the flow of electrons through the flame to the ground is detected by the controller for presence of flame. The sensor senses only the burning flame and completely insensitive to visible light and refractory glows. It is best suited for sensing flame in Gas fired burners.