tailieunhanh - flame safeguard control phần 6

Mỗi kiểm soát tương tự như để R4075C, và do đó là ac: lapled cho gia đình Cùng 'các plug-trong amplifi tín hiệu tên ers phát triển cho các R4140. Bất kỳ ccrrtinalion 01 tiêu chuẩn và / hoặc sal1 · kiểm tra hệ thống phát hiện ngọn lửa có thể được sử dụng bởi mi; ling hoặc phù hợp với các bộ khuếch đại. | R4075E DUAL INDUSTRIAL FLAME SAFEGUARD CONTROL FIG. 63 The R4075E consists of 2 controls on 1 chassis to provide Independent supervision of 2 industrial burners. It can also be used for redundant safety control systems or for dial-fuel applications. With 2 controls on 1 chassis the mounting space required is only half that previously needed. Each control is similar to the R4075C and thus is adapted for the same family of plug-in flame signal amplifiers developed lor the R4140. Any combination of standard and or salt-checking flame detection system can be used by mixing or matching the amplifiers. For example a flame rod can be used to detect the pilot and a self-checking C7012E or F Ultraviolet Flame Detector can be used for the main burner flame. Since all amplifiers are plug-in the detection mode can be changed anytime after installation. Because terminal designations for the R4075E are unique It requires a special Q29SA1054 Wiring Subbase. The R4075E Is available in 120 and 220 volt models. SEQUENCE OF OPERATION FOR THE R4Đ75E FIG. 64 The operation of the 120 volt model ol the R4Ơ75E will be described. The sequence of operation for the 220 volt model is the same it just has 2 additional transformers to provide 120 volts for the shutters on C7012E or F Purple Peeper Ultraviolet Flame Detectors. The schematic in Fig. 64 shows all relay contacts in the de-energized position. Refer to the Sequence of Operation on the following 2 pages. FIG. 63- R4075E INSTALLED ON A Q295A1054 SUB BASE. 182 R4075E 120V MODEL EXTERNAL FIELD WIRING INTERNAL schematic 2K 1K3 TK1J t STOP PLUG-IN AMPLIFIER. INTERNAL JUMPER CT0Ĩ7A. C7 JiJAh OR OR C7GMA ULTRAVIOLET FLAME DETECTOR OR INTERNAL SCHEMATIC I EXTERNAL FIELD WIRING PLUG-IN AMPLIFIER CTfliTA. CHỊỈA. OR OR c7044A ULTRAVIOLET ok FLAME DETECTOR DPST ALARM SI LENCl NG SwiTCH . . _ I IGNITION TERMINAL STRIP flame 1 METER JACK ĩ USE TERMINALS IN SECTION A FOR BURNER A. ABO TERMINAL m SECTION ft FOR BURNER I USE TERMINAL LI FOR DOTH .