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INDUSTRIES , C. <br /> THE <br /> FIRECAT 250 DIRECT FIRED <br /> THERMAL OXIDIZER <br /> WITH CAT MODULE <br /> The F/RECA7 250 is a new thermal oxidizer on the market and utilizes some <br /> unique features to process VOCs . A list of features and their functions are : <br /> 1 : VOC DILUTION CONTROL - A PID Controller modulates a mechanical <br /> valve to control the influent vapors at a pre -set level . ACCURACY ( + or - <br /> 1 % of the lower explosive level ) . The maximum LEL percentage the oxidizer <br /> can process at a 99 . 9 % destruction rate is 60 % LEL or 8280 ppmv . The LEL <br /> level is monitored by a MSA Combustables Catalytic Bead Sensor and <br /> Transmitter which supplies a signal to the PID Controller. If the LEL % rises <br /> above a pre-set level it will close off the wells and open a purge valve . <br /> 2 : OXYGEN LEVEL MONITORING - A FID Controller monitors the oxygen <br /> level to insure the oxygen level is sufficient to combust all vapors and <br /> supplemental fuel that is introduced to the oxidizer. The controller receives a <br /> signal from a MSA oxygen sensor and transmitter, Oxygen Level Required <br /> 17 % + ) . If the oxygen level drops below 17 % the wells will be closed and <br /> a purge valve will open . <br /> 1TEMPERATURE CONTROL - A PID Controller modulates a <br /> mechanical <br /> valve on the supplemental fuel line to control the oxidizer temperature at <br /> 1400 Degree Fahrenheit with an accuracy of ( + or - 5 degrees ) . The <br /> controller receives a signal from a type K thermocouple in the oxidizer stack . <br /> VOC ' s will not be introduced until the oxidizer has reached the pre -set 1400 <br /> Degree temperature . When the system is converted to " CATALYTIC " the <br /> Temperature Controller receives a signal from the influent side of the <br /> catalytic module and maintains a 650 Degree temperature . Exhaust <br /> temperature will range from 1 150 - 1250 Degrees . <br /> 4 : HIGH LIMIT CONTROLLER - A PID Controller monitors the temperature of <br /> the oxidizer to insure that it stays within the safe operating perameters of <br /> the system. If the temperature rises above a pre-set level the oxidizer shuts <br /> off the system until it is manually reset. When the system is converted to <br /> " CATALYTIC " the High Limit controller has a lower setpoint. <br /> 3530 E . Enterprise Drive , Anaheim , CA 92807-1628 <br /> tel: (714) 632- 1112 or (800) 632- 1112 • fax (714) 632.1177 <br />