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Honeywell Air Conditioner 800 User's Manual

1. DISPLAY ALTERNATES SHOWING UA AND RATIO PRESS RESET TO CANCEL AUTO SETUP NORMAL OPERATION M34460 Fig 21 Flow Chart 4 Auto Setup Page 3 27 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD SETTING RELAY ON VALUE RELAY ON SET PRESS RELAY ON SET POINT DISPLAY SHOWS CURRENT POINT FOR 2 SECONDS RELAY SETTING 2 SECS 1 DECREASE USE INCREASE OR DECREASE KEYS TO ADJUST SETTING DISPLAY SHOWS PL UNTIL KEY RELEASED IS THE PANEL LOCKED IS THE AUTO SET Y DISPLAY SHOWS CP MEANING CONFIRM LIGHT LIT PRESS RESET OR WAIT 4 SECONDS TO CANCEL CHANGING THE AUTO SETTING FELA CN PRESS RELAY ON SET POINT AGAIN TO CONFIRM s YOU WANT TO CHANGE THE AUTO SETTING PRESS STORE TO SAVE THE NEW SETTING 1 INCREASE USE INCREASE OR DECREASE KEYS OR TO ADJUST SETTING PRESS RESET OR WAIT 4 SECONDS TO RESTORE OLD SETTING DECREASE NORMAL OPERATION Fig 22 Flow Chart 5 Manual Flame On Setup 66 2069 02 28 M34461 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD SETTING RATIO PERCENTAGE RATIO PRESS RATIO DISPLAY SHOWS CURRENT Eu O02 SECONDS RATIO SETTING IN PERCENT 4 DECREASE USE INCREASE OR DECREASE KEYS TO ADJUST SETTING DISPLAY SHOWS PL UNTIL KEY RELEASED IS THE PANEL LOCKED DISPLAY SHOWS CP MEANING CONFIRM IS THE AUTO
2. RF B RF B RF A RFA SC SC SC ON JOFF CO ON OFF COM MODEL 700DC AUTO SETUP ON OFF SEQ SEQ AUTO FAULT PRESS BUTTONS FLAME F SET 2 SEC TO ACTUATE 516 RELAY ON LOAD SET FACTORY POINT DEFAULTS INCREASE M J 35MM DIN RAIL f N RATIO DECREASE 5 1 2 139 RELAY OFF RELAY ON J Y BNR ON BNR OFF HECEPT SEQ SEQ RATIO START END START END SET GAIN N J gt FFRT 0 20MA 1 2 3 SEC 4 20MA OPTION OPTION N M A APPROVED 01 1 20 MAI 20 MA RET E T RET AERE EET EPI ggg REDI Em ai DIN RAIL RELEASE 7 3 1 4 83 M34584 lt 2 29 32 74 F Fig 11 Model 700DCSP Signal Processor 19 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD SGO26GSZ AM AUTO SETUP ON OFF SEQ SEQ RF B RF B FF COI RF AJ RF AIRF A SC SC SC OFF COM ON OFF COM MODEL 700AC AUTO FAULT PRESS BUTTONS FLAME FLAME SET 2 SEC TO ACTUATE SIG ON N fe f gt RELAY ON LOAD SET FACTORY POINT DEFAULTS INCREASE wn OS V 22 ON RATIO DECREASE RELAY OFF STORE RELAY ON i e 7 2 fr
3. Used with air cooling canister Contact your distributor or the factory for selection assistance Cable restraints 800CR 700CRLT Liquid tight S80X and S70X cable restraint versions The 800CR includes the 700CRLT and the 800ACC RING adapter S80X adapter ring 800ACC RING Adapter ring to fit S80X viewing heads to 700ACC cooling jacket and 700CRLT liquid tight cable restraint Right angle adapter 700RAA S70X S80X viewing head right angle adapter 1 2 in NPTF to 1 2 in NPTM connections Mounting blocks 700DA 700DA 1 800DA Delrin replacement adapter mounting blocks for S70X and S80X viewing heads All have 1 4 in NPTF purge air connections Rated for continuous service up to 180F 82C The 700DA and 800DA have 1 2 in NPTF process connections while the 700DA 1 has a 1 in NPTF process connection For more 1 in NPT accessories that can be used with the 700DA 1 refer to the S55XB BE manual 66 2064 USB to RS422 RS485 Converter COMMOD Protocol converter for use with external communication with a remote computer Fiber Optic System Compatibility The 570 and S80X viewing heads are compatible with the Honeywell FASA fiber optic extension products The S700FOAD and S800FOAD adapters are applicable depending on the application Contact your distributor or the factory for assistance with fiber optic selection and pricing OPERATION IR Detector The S702 and S802 viewing head models use a Germanium photo
4. 3 S70X 29 40007 OUTPUTGAIN Gain of the 0 4 20mA output read write 20 80 40010 IRGAIN IR sensor gain setting read write 1 9 40012 UVTGAIN UV tube gain setting read write 1 9 40017 TYPE Viewing head type bitmask read only bit 0 UV viewing head bit 1 IR viewing head 40021 TIMEDELAY Time Delay read only 1 2 1 for 700XXSP 40022 FFRT Flame failure response time setting in seconds read write 1 3 40023 VERSION Firmware version read only 40024 MODEL Model number read only 40084 ERRORCODE Error code read write NOTE writing a non zero number to this register is not allowed 40085 BAUD Baud rate setting bits second Only affects RS 485 96 192 communication not IRDA read write 96 9600 default 192 19200 The SP and the master device must have the same baud settings 40086 PARITY Parity setting Only affects RS 485 communication not IRDA 0 1 read write 0 none default 1 odd 40087 ADDRESS Modbus address used by RS 485 and IRDA read write 0 247 Each device must have a unique address 40089 PROTOCOL Protocol read write 0 1 O Honeywell protocol 12Modbus protocol 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD BOILER 1 ADDRESS ADDRESS BOILER 3 MODBUS MASTER CONTROL NOTES A CONVERTER MAY BE NECESSARY FOR COMMUNICATION WITH THE MODBUS MASTER CONTROL USE SHIELDED CABLE FOR COMMUNICATION WIRING DRAWING IS FOR GENERAL REFERENCE ONLY FOR R
5. 800 SIGNAL PROCESSOR AND VIEWING HEAD INCREASE DECREASE and STORE buttons range of 00 to 29 LOAD FACTORY DEFAULTS button Used to restore all settings to the factory default values e T INCREASE button Used to increase parameter value when in programming mode RATIO RELAY OFF RELAY ON button Used along with the INCREASE DECREASE and STORE buttons to set the RELAY OFF setpoint at a percentage of the RELAY ON setpoint Adjustable from 20 to 80 STORE button Stores new parameter values during programming After making changes will be displayed indicating the new values are accepted and stored e DECREASE button Used to decrease parameter value when in programming mode BNR ON SEQ START END button Used to initiate and proceed through the automatic parameter setup sequence which includes the RELAY ON RATIO 96 and GAIN settings the FFRT mA output and communication address must be set manually BNR OFF SEQ START END button Used during the automatic parameter setup sequence ACCEPT RATIO SET GAIN button Allows user to set the viewing head gain in conjunction with the INCREASE DECREASE and STORE buttons Used in conjunction with the BNR ON SEQ START END and BNR OFF SEQ START END buttons during the automatic setup process FFRT 1 2 3 SEC OPTION button Used to set the FFRT timing along with the INCREASE DECREASE and STORE buttons 0 20MA 4 20MA OPTION button Used in conjunction with the INCREAS
6. AND VIEWING HEAD 700AC or 700DC Signal Processor Proof Test Procedure Equipment Powered 700AC or 700DC correctly connected to a compatible viewing head Multimeter able to take voltage and resistance measurements For 700AC signal processors an 85V AC to 265V AC power source For 700DC signal processors a 22V DC to 26V DC power supply Light source capable of generating a flame on condition Generally an incandescent bulb will work for IR viewing head sensors and a deep UV light or flame will work for UV viewing head sensors Setup 1 Ensure the 700AC or 700DC signal processor under test is correctly connected to a compatible viewing head and is fully operational While performing the proof test disconnect or disregard the signal processor outputs so that any outputs due to testing do not affect the overall safety system and potentially cause a hazardous situation Record all previously entered user programmable settings so that you can restore them to their desired values after the proof test Tests 1 Remove power to the signal processor and using a multimeter ensure continuity between SC COM and SC Reapply power to the signal processor and using a multimeter ensure continuity between SC COM and SC ON 35 Use a light source to generate a flame on condition and using a multimeter ensure continuity between RF A and RF A ON and between RF B COM a
7. Probability Average Probability of Failure on Demand In this case regarding the 700 Signal Processor FIT Failures in Time A unit of measurement representing one failure per billion hours 1 000 000 000 hours is approximately 114 155 25 years Safety Function of the 700 The safety function of the 700 signal processor consists of a The Flame Relay will be de energized when the signal Flame Relay which comprises its safety function and behaves as follows The Flame Relay Normally Open The Flame Relay will be energized when the signal processor is powered and a flame on condition is detected processor is powered a flame of condition is detected and the FFRT Flame Failure Response Time has elapsed The Flame Relay will be de energized when the signal processor is powered and detects a fault condition The Flame Relay will be de energized when power to the signal processor is off 33 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD As an added safety feature the coil of the Flame Relay is wired in series with a second pole of contacts on a Self Check Relay The Self Check Relay is designed to be closed during normal operation of the signal processor and open during detection of a fault or power down It is physically impossible for the Flame Relay to be closed if the Self Check Relay is open unless the contacts of the Flame Relay are welded closed or the contacts of th
8. SN BNR ON BNR OFF RECEPT SEQ SEQ RATIO START END START END SET GAIN POU fe Ww 7 FFRT 0 20MA 11213 SEC 4 20MA ie OPTION OPTION SSS SSS CN 2 A Na APPROVED OUT 20 MA 20 66 2069 02 2 29 22 7 5 RELAY CONNECTIONS RS 422 WIRING DIN RAIL RELEASE M34851 Fig 12 Model 700ACSP Signal Processor HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD BURNER FRONT PLATE 1 25 NPT NIPPLE TOE S70X VIEWING HEAD 700 1 SWIVEL MOUNT 1 4 6 NPT PURGE CONNECTION QUICK DISCONNECT CABLE CONNECTION SUPPLIED M34537 Fig 13 Viewing Head Mounting Example BURNER FRONT PLATE OR WINDOWBOX 1 2 13 NPTM PIPE S70X VIEWING HEAD 1 4 6 NPT PURGE CONNECTION QUICK DISCONNECT Y CABLE CONNECTION FLANGE SUPPLIED OPTIONAL M34538 Fig 14 Viewing Head Mounting Example Mounting Examples Purge air should be provided via the purge air connection to insulating mounting block is available for all models which is reduce conducted heat and to keep the sight pipe and viewing rated for 320F 160C continuous service Also available are head lens free of dirt and debris Refer to Purge Air on cooling jackets which are used with vortex coolers The page 8 for
9. and 700DCSP signal processors mount on a standard 35mm DIN rail They snap into place and may be released from the rail using a flat screwdriver Grounding and Shielding NOTE Installer must be a trained experienced flame safeguard service technician and should be familiar with the equipment operation and limitations and be aware of any applicable local codes and regulations 1 Connecta safety ground to the viewing head housing if applicable A ground screw is provided on the exterior of the viewing head housing for this purpose WARNING The viewing head housing is grounded through cable signal processor so you must ensure that AC DC potentials at ground of signal processor and viewing head are the same or damage to the cable or signal processor can result 2 The viewing head and all associated cable conduit must be at least 12 inches 31 cm from any source of high energy or voltage for example igniter equipment 3 Install a ground wire from the ignition transformer case to the igniter assembly 4 Ensure all igniter wires and cables show no signs of wear Replace any igniter cables or wires that are frayed or cracked 5 The viewing head must be electrically isolated from the burner front a Electrical isolation can be accomplished by installing an Ultem nipple R 518 13 or an Ultem locking coupler adapter R 518 PT13 or R 518 PT13L in conjunction with a locking coupler R 518 CL13 HTG between the viewing
10. either V H connected Outputs Flame Relay 2 form C contacts Self Checking Relay 1 form C contact Relay Contact Ratings 5A at 125 VAC 277 VAC amp 30 VDC 1 8 HP 125 amp 250 VAC Analog Flame Signal Isolated 0 to 20 mA or 4 to 20 mA output for remote meters or DCS 360 ohms maximum resistance Environmental Ambient Temperature 32 F to 140 F 0 C to 60 C Dimensions Refer to Fig 11 and Fig 12 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD APPROVALS S70X S80X Viewing Heads Connector series and Pipe fit series PF CSA for CLASS I DIV 2 GROUPS A B C D amp T4A FM 7610 NEMA 4X and CLASS 1 DIV 2 GROUPS A B C D amp T4A SIL 3 Fit for Use IECEx CSA 10 0003 Ex nA IIC T4 Gc 40 lt Ta lt 85 C 40 lt TA lt 185 F IP67 NEMA 4 4X rating applies when connector ring is properly tightened and cable is UV shielded 700ACSP and 700DCSP Signal Processors CSA C US FM INSTALLATION When Installing These Products 1 Read these instructions carefully Failure to follow them could damage the products or cause a hazardous condition 2 Checkthe ratings given in the instructions and one the products to make sure the products are suitable for your application 3 Installer must be a trained experienced flame safeguard control technician 4 After installation is complete check out product operation as provided in these instructions Signal Processor Mounting The 700ACSP
11. head flange and the burner mount b The purge air line should also be isolated from the viewing head This can be accomplished by installing any insulating material for example a rubber hose in between the purge air line and the viewing head Signal Processor Power Connections The Model 700ACSP power and relay connections are shown in Fig 1 The AC power supply to the 700ACSP Signal Processor passes through a 2A fuse and an inrush current limiter The Model 700DCSP power and relay connections are shown in Fig 2 The maximum current requirement for each 700DCSP is 250mA In the Model 700 signal processors the flame relay RF A B ON OFF COM has two sets of FORM C SPDT contacts and the self check relay SC ON OFF COM has one set Fig 1 and Fig 2 The self check relay is energized whenever the signal processor is powered and is operating normally whether the flame relay is energized or not Internally the flame relay is wired in series with the self check relay not shown which prevents the flame relay from energizing if the self check relay is not energized Unique fail safe circuitry for the self check and flame relays ensure that in the event of any critical component failure occurrence system response will be to de energize the self check relay which in turn de energizes the flame relay Some of the internal power wiring of the Model 700ACSP and Model 700DCSP signal processors is shown in Fig 1 and Fig 2 R
12. with retaining rings in the flange at the edge of the 1 2 inch NPT female pipe thread for the process connection An internal type retaining ring is first installed by positioning a ring in the machined groove inside the flange opening from the housing side The orifice disk is then inserted Use a second retaining ring to hold it in place so that it is sandwiched tightly between the two retaining rings If the displayed flame count is 25 or higher when the gain is set to 1 an orificing disc inserted in the back end of the mounting block can be used Choose a disc that gives a reading of 12 to 24 at a low fire firing rate The discs have a range of orifice sizes each size step results in about a 2 1 change in the counts displayed Signal Processor User Interface The 700ACSP and 700DCSP signal processors have a user interface that includes four lights a two digit display and twelve push buttons for operation and programming Each button has at least one specific purpose To enter a menu press and hold the applicable button for 2 seconds Adjustments to the applicable setpoint can be made via the INCREASE or DECREASE arrow buttons To store the new setting press the STORE button until is shown indicating the value has been accepted If no activity occurs for a period of four seconds while the menu value is displayed it will revert back to the operating display To exit a menu at any time without saving changes simply p
13. 00 SIGNAL PROCESSOR AND VIEWING HEAD Viewing Head Connector and Wiring Viewing heads are wired to the appropriate terminals located on bottom of the 700ACSP 700DCSP P531 or P532 signal processors The terminals are listed functionally in Table 2 Table 2 Terminal Descriptions 7TOOACSPor P531 or Description 700DCSP P532 Terminal Terminal VH SIG VH3 SIG Flame Signal from Viewing Head VH SC VH3 SC Shutter Drive Signal to Viewing Head VH V VH3 V 24VDC Power to Viewing Head VH GND VH3 GND GND Signal Ground Connectors and cables are shown in Fig 3 Fig 4 and Fig 5 Fig 3 shows the viewing head cable with the 1 2 in NPT pipe fitting and pigtail for use in a conduit The PF model comes with 50 feet of Honeywell C330S cable This cable is recommended for all new installations It has ITC and CIC ratings for hazardous location Figs 4 and 5 describe the C330S cable used with the right angle field wireable connector Refer to Accessories on page 9 for part numbers The customer may also supply his own cable a replacement mating viewing head connector should be ordered Refer to CONDUIT ENCLOSURE Accessories on page 9 for part numbers The use of 22g 4 conductor cable with shield and drain is recommended The shield should be foil and braid type surrounding all conductors The shield should be connected to GND at the processor end The cable diameter should not exceed 0
14. 0DCSP is 0 and must be changed to a number between 1 and 32 to establish communication between the signal processor and the host control When more than one signal processor is in the network ensure that each signal processor has a unique Modbus address within the range of 1 to 32 Modbus RTU Function Supported Four Modbus functions are supported 01 Output coil read 03 Holding register read 06 Preset single holding register 16 Preset multiple holding register NOTES Before Model 700 signal processors are connected to the RS 422 bus their individual Modbus addresses must be set to differing values between 1 and 32 RESET button on front of the 700ACSP or 700DCSP signal processors is used to set the Modbus address Press and hold the RESET button for two seconds and the current address will appear It may be changed with the up or down arrow keys Pressing the STORE button will store the new address Table 4 MODBUS registers map Register Name Description Minimum Maximum 40001 FLAMECOUNT Flame count of active viewing head read only 0 3425 40002 PROCSTATUS Processor status bitmask read only 0 255 bit 1 flame on relay status 1 relay energized O off bit 2 Processor Lockout status 0 lockout 1 not lockout bit 3 Panel access disabled 1 disabled O enabled bit 4 4 20 ma output 0 0 to 20 1 4 to 20 40003 FLAMEON Flame On setpoint read write
15. 0X amp 80X VIEWING HEAD S702 S706 S802 AND S806 Product Declaration FIT FOR USE IN A LOW DEMAND SAFETY APPLICATION Models S702 S702 PF S702 HF S702 HF PF S706 S706 PF S802 S802 HF S806 Models SIL HFT SFF PFD As Add Adu 5702 and S802 3 0 gt 99 1 81 x 10710 1 70 x 107 2 27 x 101 0 5706 and S806 3 0 gt 99 1 51 x 10 1 02 x 10 2 27 x 1091 6 90 x 10119 System Architecture 1001 MTTR Mean Time to Restoration 8 hours Proof Test Interval 5 years Fit for use in SIL 3 environment Table 6 Definitions Term Definition Dangerous Failure Failure which has the potential to put the safety related system in a hazardous or fail to function state Safety related System A system that implements the required safety functions required to achieve or maintain a safe state and is intended to achieve on its own or with other systems the necessary safety integrity for the required safety functions Safety Function Defined function which is performed by a safety related system with the aim of achieving or maintaining a safe state for the plant in respect of a specified hazardous event Proof Test Periodic test performed to detect failures in a safety related system so that if necessary the System can be restored to an as new condition or as close as practical to this condition MTTR Mean Time to The average duration required for restoration of operat
16. 307 in order for it to go through the hex bushing in the connector But note that wiring the cable to the connector is not easy because of the limited space Also the LED indicator assembly must be mounted inside the connector and preferably soldered in place Thus it is recommended to purchase a pre wired cable and connector assembly from Honeywell NOTE FOR CLASS I DIV 2 RATING CABLING IN HAZARDOUS LOCATIONS MUST COMPLY WITH NEC ARTICLE 500 REQUIREMENTS AND APPLICABLE GOVERNING CODES In the U S cables should have UL ITC rating in Canada cables should have CSA s CIC rating The recommended C330S cable has both ratings NOTE To obtain a NEMA 4X seal between the connector and the viewing head tighten the metal connector ring securely S702PF S702HFPF OR S706PF STANDARD PIGTAIL LENGTH 10 FEET 3 METERS C330S YELLOW 4 CONDUCTOR WITH DRAIN AND SHIELD WHITE TERMINAL SIG vHsc V 2 VH GND SHIELD M34285B Fig 3 Model 700 Viewing Head Cable With 1 2 in NPT Fitting 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD METAL CONNECTOR RING Ed Ma CONNECTOR LOOKING AT PINS CONNECTOR REAR VIEW WITH NUT LOOSENED AND COVER REMOVED 3305 YELLOW 4 COND WITH FOIL BRAID SHIELD AND DRAIN ITC amp CIC WHITE TERMINAL Q SIG vHsc vH v VH GND M34286A Fig 4 Mode
17. CTORY DEFAULTS button will result in the values shown in Table 3 being loaded and stored in EEPROM During the automatic setup sequence if the AUTO SET LED is on when the LOAD FACTORY DEFAULTS key is pressed CF will be displayed Press the LOAD FACTORY DEFAULTS key again to confirm the change or press RESET to abort the change If the factory defaults are loaded the AUTO SET LED will be turned off 66 2069 02 Table 3 S70X S80X Default Settings Relay on setpoint 16 Ratio 96 relay off relay on 5096 FFRT Flame Fail Response Time 1 sec 0 20mA 4 20mA OPTION 4 20mA UV IR Gain 5 Communication address 0 Panel Lock A pattern of key presses will result in the panel being locked So as to block any changes to the values stored in the signal processor With the panel locked values may be examined but the signal processor will not respond to the STORE key The panel should be locked after the setpoints are set Contact the factory to obtain the procedure to lock or unlock the panel MODBUS COMMUNICATION The 700ACSP and 700DCSP signal processors are capable of communication with Flametools software running on a Microsoft Windows PC S7999D touch screen or other device that supports Modbus RTU protocol Both Flametools and the S7999D include graphic user interfaces Other devices will require the user to generate an interface The data transmitted to and from the 700ACSP 700DCSP is over two tw
18. E DECREASE and STORE buttons to select the proportional mA output for the flame signal RESET rE button Resets a lockout condition Also used to exit a menu while programming Used to set the Modbus address along with the INCREASE DECREASE and STORE buttons Manual Setup of Setpoints The keypad of the signal processor is used to set the IR UV GAIN RELAY ON RATIO Relay Off FFRT and mA output option setpoints The following section describes this process Also refer to Fig 22 23 24 25 and 26 Setting the Viewing Head Gain The gain of the IR and UV viewing heads can be adjusted In addition to the information in this section refer to Fig 26 At power up the 700 signal processors display codes to tell the operator what type of viewing head and what gain is being used Default values are r5 for the IR viewing head and u5 for the UV viewing head The r or u denote IR or UV viewing heads respectively while the numeric digit indicates the current gain setting The gain can be adjusted from 1 to 9 with a gain of 5 being the factory default gain 66 2069 02 To change the gain press and hold the SET GAIN button for two seconds until the current value is displayed Use the INCREASE and DECREASE buttons to change the setting as appropriate while the value is displayed To store the new setting press the STORE button until is shown indicating the value has been accepted If no activity occurs for a p
19. EPT RATIO SET GAIN button for 2 seconds until the current value is displayed While the value is displayed adjustments may be made via the INCREASE or DECREASE arrow buttons To store the new setting press the STORE button until is shown indicating the value has been accepted If no activity occurs for a period of four seconds while the value is displayed the RATIO display will disappear and the old ratio setpoint will take effect To exit the menu at any time without saving changes simply press the RESET rE button Setting FFRT Flame Failure Response Time To access the FFRT setpoint press and hold the FFRT 1 2 3 SEC OPTION button for 2 seconds until the current value is displayed Refer to Fig 24 for the setup flowchart The FFRT can be set at 1 2 or 3 seconds While the value is displayed adjustments may be made via the INCREASE or DECREASE arrow buttons To store the new setting press the STORE button until is shown indicating the value has been accepted The changes not live they take effect only if the STORE button is pressed FFRT values do not relate to the RELAY ON SETPOINT and RATIO RELAY OFF values Therefore during automatic setup if the AUTO SET LED is on confirmation is not needed to change the FFRT setting If no activity occurs for a period of four seconds while the value is displayed the FFRT display will disappear and the old setpoint will take effect To exit th
20. Honeywell Honeywell Model 700 800 Signal Processor and Viewing Head U23902 MODEL 700DC APPLICATION The Honeywell Model 700ACSP and Model 700DCSP signal processors are single channel fail safe flame monitoring systems when used In conjunction with the S70X S80X viewing heads They offer easy setup excellent discrimination and high reliability FEATURES Viewing heads are interchangeable between the two signal processor models Any viewing head in the two families will work with any of the signal processors Two signal processor models are available USER MANUAL Model 700ACSP Universal 85 265 VAC powered plus 24VDC backup Model 700DCSP 22 26VDC powered plus 24VDC backup The two Model 700 signal processors are similar with 12 push buttons a two digit numeric display and four LED status indicators for operator interface The only difference between the two is that one accepts AC power and the other accepts DC power Both models also accept 24VDC backup power Most of the signal processor connections are made through Phoenix plug in connectors Communication connections are made through modular phone jacks located at the top of the signal processors Fig 8 Both signal processor models mount on a standard 35 mm DIN rail They snap into place and may be released from the rail using a flat screwdriver There are two types of viewing heads IR flicker sensitive and UV sensitive with various fea
21. IO DECREASE RELAY OFF RELAY ON gt BNR ON BNR OFF ACCEPT SEQ SEQ _RATIO_ START END START END SET GAIN be L za CANIS di 26VDC FFRT ZN 1 2 3 SEC OPTION M 125 A APPROVED OUT 20 MA VH VH VH 20 RET SIG sc v CHASSIS EARTH OR SYSTEM GND 0 20 OR 4 20 MA FOR INDICATOR OR INSTRUMENTATION 360 OHMS MAX TO VIEWING HEAD 24V BACKUP BATTERY OPTIONAL M34280 Fig 1 Model 700ACSP Signal Processor Wiring HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD 2 RI ON OFF COM N E SEF AUTO SETUP ON OFF COM Epe ON OFF SEQ SEQ AUTO FAULT PRESS BUTTONS FLAME FLAME SET 2 SEC TO ACTUATE SIG ON N gt RELAY ON LOAD SET FACTORY POINT DEFAULTS INCREASE RATIO RELAY OFF RELAY ON HECEPT RATIO SET GAIN APPROVED 20 20 MAJ 356 E PWR Mis de aS 0 20 OR 4 20 MA FOR INDICATOR OR INSTRUMENTATION 360 OHMS MAX TO VIEWING HEAD DC POWER SUPPLY 250 MA CHASSIS EARTH OR SYSTEM GND 24 V BACKUP BATTERY OPTIONAL M34282 Fig 2 Model 700DCSP Signal Processor Wiring HONEYWELL MODEL 700 8
22. M33287 Fig 17 Fired Viewing Head Sighting 23 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD 66 2069 02 RESTORING DEFAULT VALUES PRESS LOAD FACTORY DEFAULTS FOR 2 SECONDS DISPLAY SHOWS PL MEANING THE PANEL IS LOCKED IS THE PANEL LOCKED NORMAL OPERATION IS THE AUTO SET DISPLAY SHOWS CF LIGHT LIT MEANING CONFIRM PRESS RESET OR WAIT 4 SECONDS TO CANCEL CHANGING THE AUTO SET VALUES PRESS LOAD FACTORY DEFAULTS AGAIN TO CONFIRM YOU WANT TO CHANGE THE AUTO SET VALUES RELAY ON 16 RATIO 50 0 20 4 20mA OPTION 4 20mA FFRT 1SEC NORMAL OPERATION Fig 18 Flow Chart 1 Setting Factory Defaults 24 M34456 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD AUTO SETUP PRESS BNR ON SEQ FOR 2 SECONDS DISPLAY SHOWS PL IS THE PANEL LOCKED UNTIL KEY RELEASED IS THE AUTO SET DISPLAY SHOWS CPF LIGHT LIT MEANING CONFIRM PRESS RESET OR WAIT 4 SECONDS TO CANCEL AUTO SETUP PRESS BNR ON SEQ AGAIN TO CONFIRM YOU WANT TO BEGIN TAKING DATA FOR AUTO SETUP IS THE FLAME ON DISPLAY SHOWS BO LIGHT LIT MEANING BURNER OFF PRESS RESET TO CANCEL AUTO SETUP M34458 CONTINUED NEXT PAGE NORMAL OPERATION Fig 19 Flow Chart 2 Auto Setup Page 1 25 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD 66 2069 02 NOTE AUTO SETUP PAGE 2 CONTINUED PRESS RESET AT ANY TIME DURING
23. NEW SETTING USE INCREASE OR DECREASE KEYS OR TO ADJUST SETTING PRESS RESET OR WAIT 4 SECONDS TO RESTORE OLD SETTING NORMAL OPERATION M34464 Fig 25 Flow Chart 8 0 20 4 20mA Analog Output Setup 31 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD SETTING VIEWING HEAD GAIN ACCEPT PRESS ACCEPT RATIO SET GAIN RATIO FOR 2 SECONDS DISPLAY SHOWS CURRENT SET GAIN GAIN SETTING j DECREASE USE INCREASE OR DECREASE KEYS TO ADJUST SETTING DISPLAY SHOWS PL UNTIL KEY RELEASED IS THE PANEL LOCKED PRESS STORE TO SAVE THE NEW SETTING OR PRESS RESET OR WAIT 4 SECONDS TO RESTORE OLD SETTING M34465 NORMAL OPERATION Fig 26 Flow Chart 9 Viewing Head Gain Setting 66 2069 02 32 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD SAFETY MANUAL 700 SIGNAL PROCESSOR 700ACSP 700DCSP Product Declaration FIT FOR USE IN A LOW DEMAND SAFETY APPLICATION Models 700ACSP amp 700DCSP Dangerous Failure Models SIL HFT SFF PFD As Add du 700AC 3 gt 99 1 79 x 10 1 93 x 108 8 53 x 109 8 20 x 10 700DC 3 gt 99 1 79 x 104 1 36 x 108 8 53 x 109 8 20 x 10 System Architecture 1001 MTTR Mean Time to Restoration 8 hours Proof Test Interval 5 years Fit for use in SIL 3 environment Table 5 Definitions Term Definition Failure which has the potential to put the safety related system in a haza
24. S422 COMMUNICATION WITH THE 700ACSP OR 700DCSP AN RJ11 CONNECTOR WITH 5 WIRES FROM EACH SIGNAL PROCESSOR WILL BE REQUIRED RDA RDB TDA TDB GND FOLLOWING POLARITY FROM EACH SIGNAL PROCESSOR M34457 Fig 7 Typical Communication Wiring and Recommended Addressing NOTE Refer to Fig 8 for converter to RJ11 wiring details II SIDE VIEW BOTTOM VIEW Q Of Toa Q Of ToB Roa Of avs Djeno PRODUCT SIDE TDA TDB RJ11 CONVERTER RDA MODULAR COLOR TYPE COLOR TYPE B DESCRIPTION a CONNECTOR CONNECTOR RDB 1 WHI BLU NC NC GND 2 BLK YEL RDA FROM PROCESSOR 3 RED GRN RDB FROM PROCESSOR 4 GRN RED TDA TO PROCESSOR 5 USB TO RS422 485 CONVERTER YEL BLK TDB TO PROCESSOR 6 BLU WHI GND GROUND CAUTION THE ORDER OF THE COLORS IN THE CABLE CAN BE TYPE A OR TYPE B CHECK NOTES COLORS AT THE CONNECTOR SELECT THE APPROPRIATE SWITCH SETTINGS FOR RS 422 COMMUNICATION PER THE VENDOR S INSTRUCTION SHEET RJ11 CONNECTOR IS CUSTOMER SUPPLIED AND WIRED SOFTWARE DRIVERS MAY BE DOWNLOADED FROM B amp B ELECTRONICS WEBSITE M33831 Fig 8 COMMOD Communication Converter Wiring 66 2069 02 16 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD TROUBLESHOOTING Lockout or Faulty VH Indication If the viewing head produces any pulses during the last one third of the self check time the relay will immedi
25. SET LIGHT LIT PRESS RESET OR WAIT 4 SECONDS TO CANCEL CHANGING THE AUTO RATIO RATIO PRESS RATIO AGAIN TO CONFIRM YOU RATIO OFF WANT TO CHANGE THE AUTO SETTING RATIO ON Mi PRESS STORE TO SAVE THE NEW SETTING INCREASE USE INCREASE OR DECREASE KEYS OR TO ADJUST SETTING DECREASE PRESS RESET OR WAIT 4 SECONDS JI TO RESTORE OLD SETTING NORMAL OPERATION M34462 Fig 23 Flow Chart 6 Manual Flame Off Setup 29 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD SETTING FLAME FAILURE RESPONSE TIME FFRT FFRT PRESS FFRT DISPLAY SHOWS CURRENT 8 cen FOR 2 SECONDS SETTING IN SECONDS PTION USE INCREASE OR DECREASE KEYS TO ADJUST SETTING DISPLAY SHOWS PL IS THE PANEL LOCKED UNTIL KEY RELEASED PRESS STORE TO SAVE THE NEW SETTING INCREASE USE INCREASE OR DECREASE KEYS OR TO ADJUST SETTING PRESS RESET OR WAIT 4 SECONDS L TO RESTORE OLD SETTING NORMAL OPERATION M34463 Fig 24 Flow Chart 7 Flame Failure Response Time FFRT Setup 66 2069 02 30 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD SETTING ANALOG OUTPUT LEVELS 0 20 4 20 mA 0 20 mA f 4 20 mA PRESS 0 20 4 20 mA OPTION DISPLAY SHOWS OPTION FOR 2 SECONDS 02 FOR 0 20 mA 42 FOR 4 20 mA USE INCREASE OR DECREASE KEYS TO ADJUST SETTING DISPLAY SHOWS PL UNTIL KEY RELEASED IS THE PANEL LOCKED PRESS STORE TO SAVE THE
26. THIS PROCEDURE TO CANCEL AUTO SETUP DISPLAY BEGINS COUNTING DOWN FROM 59 SECONDS BNR ON PRESS BNR ON SEQ AGAIN TO END TAKING BURNER En AD ON DATA OR WAIT UNTIL THE COUNT REACHES ZERO 80 SECONDS MINIMUM RECOMMENDED DISPLAY RETURNS TO CURRENT FLAME SIGNAL AND AUTO SETUP OFF SEQ LIGHT FLASHES TURN BURNER OFF PRESS BNR OFF SEQ TO BEGIN TAKING BURNER OFF DATA DISPLAY BEGINS COUNTING DOWN FROM 29 SECONDS PRESS BNR OFF SEQ AGAIN TO END TAKING BURNER OFF DATA OR WAIT UNTIL THE COUNT REACHES ZERO 15 SECONDS MINIMUM RECOMMENDED IS THE AUTO SETUP RATIO ACCEPTABLE RATIO IS ACCEPTABLE RATIO lt 72 DISPLAY SHOWS NEW RATIO SETTING FOR ONE SECOND THEN __ FOR ONE SECOND AND NEW VALUES ARE SAVED CONTINUED NEXT PAGE NORMAL OPERATION M34459 Fig 20 Flow Chart 3 Auto Setup Page 2 26 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD NOTE AUTO SETUP PAGE 3 CONTINUED PRESS RESET AT ANY TIME DURING THIS PROCEDURE TO CANCEL AUTO SETUP IS THE AUTO SETUP RATIO MARGINAL 71 lt RATIO lt 81 RATIO MAY BE ACCEPTABLE DISPLAY ALTERNATES SHOWING AND THE NEW RATIO SETTING ACCEPT RATIO PRESS ACCEPT RATIO SET GAIN TO SETGAIN ACCEPT THE RATIO DISPLAYED DISPLAY SHOWS __ FOR ONE SECOND AND NEW VALUES ARE SAVED NORMAL OPERATION IS THE AUTO SETUP RATIO UNACCEPTABLE RATIO gt 80 RATIO IS UNACCEPTABLE
27. ately de energize the display will show LO lockout and the FAULT LED will flash on and off rapidly Exit lockout by pressing RESET If a pulse or pulses come in during the last one third of the self check time while the automatic data sampling is taking place the automatic process will be aborted the relay will be de energized if it was energized the display will show LO lockout and the FAULT LED will flash on and off rapidly Press RESET to exit this If a viewing head is disconnected the display will show L1 Reconnect the viewing head and press RESET If the signal processor displays EE upon power up it is an indication that the EEPROM stored data for the viewing head does not match for the currently connected viewing head For further information on this condition refer to the Parameter Match Error Section below Parameter Match Error If the signal processor displays EE upon power up it is an indication that the EEPROM stored data for the viewing head does not match for the currently connected viewing head This error can occur when a different model viewing head is connected to the signal processor than was previously connected As a result the signal processor discards the previous stored parameters and loads factory defaults except the RELAY ON SETPOINT is set to 31 Setpoint values and other parameters plus error checking codes are stored in EEPROM Electrically Erasable Programmable Rea
28. d Only Memory in the signal processors This data is then error checked when it is read at power up If the data does not match exactly what was previously stored the signal processor discards all data displays EE and loads factory defaults The RELAY ON SETPOINT is set to 31 Since the flame count cannot go this high the flame relay cannot be energized The signal processor can be reset by changing the RELAY ON SETPOINT to a reasonable value or by pressing LOAD FACTORY DEFAULTS Panel Lock with No VH Connected The signal processor requires continuous communication with the connected viewing head If the viewing head is disconnected communication will be lost and the display is made inoperative where no settings can be examined or changed To correct this condition reconnect the viewing head to the signal processor and cycle power Grounding and Shielding See Grounding and Shielding on page 3 for further troubleshooting help in regards to proper grounding and shielding techniques MAINTENANCE UV tube models Only The UV sensor has a limited lifespan Under extreme conditions the lifespan can be as low as 10 000 hours However in the most favorable conditions the lifespan is 50 000 hours or more The service life of the UV sensor is considered terminated when the sensitivity becomes lower than 50 of the initial value A monthly sensitivity check is suggested to determine if the UV sensors life is terminated The rea
29. d if the flame is present according to the current settings until valid new values are obtained To end the data sampling press the same button BNR ON SEQ START END again but ensure that an adequate number of data samples has been taken At least 30 seconds of BNR ON data sampling is recommended ten seconds is a minimum The software will not respond to a second press of the button for 10 seconds RESET may also be pressed while the data sampling is occurring the data sampling process will be aborted and the old values will remain in effect After BNR ON data sampling is complete the OFF SEQ LED flashes Turn off the burner and immediately press the BNR OFF SEQ START END key a two second press is not required The displayed timer then counts down from 29 This process may be interrupted but at least 15 seconds of BNR OFF data sampling is recommended The data sampling process can be aborted by pressing RESET in which case the data for both BNR ON and BNR OFF will be discarded and the previous values will remain in effect If the data is good that is the computed ratio is 7196 or less when BNR OFF data sampling is complete the display shows the ratio in percentage for one second followed by to indicate a successful setup The signal processor then turns on the AUTO SET LED to verify that the values stored internally were derived from the BNR ON BNR OFF data sampling sequence If the data received is marginal with t
30. ding of the signal processor digital display should be compared to the initial reading of the unit when it was installed Ensure similar burner fire conditions of the application and that the same gain settings of the viewing head are used during each sensitivity check If it is determined that the sensitivity is below 5096 of the initial value terminated life of the sensor the sensor should be replaced 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD 1 2 13 14 NPT FOR SIGHTING PIPE yo W 13 14 NPT FOR SIGHTING PIPE 1 1 2 38 ACROSS FLATS d 1 49 64 45 DIA MOUNTING BLOCK HEX 1 1 2 38 ACROSS FLATS 1 49 64 45 DIA MOUNTING BLOCK 1 4 6 18 NPT FOR PURGE AIR 1 4 6 18 NPT FOR PURGE AIR DON A ARRAS RR ANN DMI F rn 7 23 32 8 19 64 196 211 6 13 32 6 163 153 Lf nmnogunun 13 32 10 iie 21 64 8 N 1 2 A 38 1 1 8 1 31 64 29 DIA 38 Man M34284 Fig 9 Models 702 and 706 Viewing Heads Fig 10 Models S802 and S806 Viewing Heads 66 2069 02 18 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD RELAY CONNECTIONS RS 422 WIRING
31. diode which responds to IR radiation flicker in the flame Flame flicker is caused by the combustion or forced air injected in to the flame Combustion air can be mixed with the fuel pulverized coal or can be introduced separately In either case forced air is introduced in such a way as to aid the combustion process This air is usually made turbulent by causing it to swirl with spin vanes located in the burner throat Flame flicker is created when turbulent air mixes with the flame It is composed of random frequencies and the amount of high frequency flicker is dependent on the fuel and the burner The S702 S702PF and S802 viewing head models respond to flicker frequencies above 33Hz while the S702HF S702HFPF and S802HF viewing heads respond to flicker frequencies above 155Hz All flicker frequencies below the filters are ignored so it is important to sight the viewing head on the highly turbulent portion of the flame that contains the higher frequencies The location of the higher frequencies can be predicted by examining the burner with regard to where the turbulent air enters the flame The optimum scanner location is parallel to the burner center line Fig 15 The use of a swivel mount is encouraged to allow for line of sight 66 2069 02 Filter Selection for IR Viewing Head If a good count ratio between BNR ON and BNR OFF cannot be obtained when using an IR viewing head particularly when monitoring oil flames an IR view
32. djusted to give this reading If itis less than about 18 you should find that the gain has been set to 9 if itis more than about 22 you should find that the gain has been set to 1 Once the values have been stored through this sequence you can check the RELAY ON SET POINT the RATIO or the GAIN by pressing the appropriate key for two seconds However if you attempt to change these values by pressing the INCREASE or DECREASE keys the display will show CF confirm and the AUTO SET LED will flash rapidly To confirm the desired change press the RELAY ON SET POINT key the RATIO key or the SET GAIN key a second time To discontinue any changes press the RESET key or simply wait four seconds for a time out to occur The user confirms they wish to make changes the values will change when you use the INCREASE or DECREASE keys Meanwhile the AUTO SET LED will be flashing The AUTO SET LED will de energize only if the changed values are stored if the changed values were not stored the AUTO SET LED will light and the old values will remain in effect If values were obtained automatically that is if the AUTO SET LED is on and the BNR ON SEQ START END key is pressed the display will also show CF If the BNR ON SEQ START END key is pressed again the signal processor will begin the BNR ON data sampling sequence Loading Factory Defaults Fig 18 shows the flowchart for restoring default values Pressing and holding the LOAD FA
33. e Self Check Relay are welded closed To reduce the chance of a false flame on condition it is recommended that the user wire the Flame and Self Check Relays in series Also as another added safety feature neither relay can be driven by a simple continuously high or continuously low signal Each relay must be driven by an alternating signal of the proper frequency and duty cycle from the processor 700AC or 700DC Signal Processor Proof Test Interval The Proof test must be conducted every 1 to 5 years This range is given to allow for the test to be performed during the normally scheduled burner shutdown period It is the responsibility of the user to perform the proof test in the specified time frame The following diagram presents the dependence of the PFDaAygq on the proof test interval The PFDAyg increases as the proof test interval increases 700 AC PFD VS TIME 4 00E 8 50E 8 00E 2 50E 2 00E PFD vg 1 50 1 00 5 00E 45 0 00E 0 1 2 3 4 5 6 7 8 9 10 TIME YEARS M35037 Fig 27 Dependence of the PFDayg on the proof test interval for 700AC 700 DC PFD 4 00E VS TIME AVG 3 50E 3 00E 2 50E 2 00E PFD AVG 1 50E 1 00E 5 00E 5 0 00E N 4 5 6 7 8 9 10 TIME YEARS M35038 Fig 28 Dependence of the PFDayg on the proof test interval for 700DC 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR
34. e menu at any time without saving changes simply press the RESET rE button 0 4 20mA Output Option An analog output current is provided for operating a remote meter or other instrumentation The load resistance should not exceed 360 Ohms for the Model 700 signal processors The resistance can be chosen to give the desired voltage swing For example if 2V is desired for a 20 mA output a 100 Ohm resistor would be used Fig 25 contains a flowchart for the mA output setup The analog current output selections are 0 to 20 milliamps or from 4 to 20 milliamps Selection of the applicable range is made by pressing and holding the 0 20 MA 4 20 MA OPTION button until the current value is shown 02 denotes the 0 20mA selection while 42 denotes the 4 20mA selection the default value While the value is displayed it may be changed via the INCREASE or DECREASE arrow buttons To store the new setting press the STORE button until is shown indicating the value has been accepted Confirmation is not requested if the 0 20 4 20 setting is changed when AUTOSET LED is on The 0 4 20mA output option is live the operative range changes as soon as the displayed selection is changed However the value must still be saved via the STORE button in order to be saved in the signal processor s EEPROM To exit the menu at any time without saving changes simply press the RESET rE button or wait four seconds The analog current output is scaled accord
35. ectifier diodes separate the battery backup input from the main power bus until the battery voltage exceeds the internal DC voltage plus a diode voltage drop Resettable fuses shown as resistors with slashes and conventional fuses prevent internal failures from loading the power sources With the Model 700DCSP if a backup battery is to be used with a main power supply the two power sources would be wired as shown in Fig 2 If no backup battery is to be installed the main power supply can be connected at 26V PWR and GND as shown in Fig 2 or it can be connected to the 24V BATT input and GND It is preferable to use the battery connections because it takes advantage of the resettable fuse at the battery input resettable fuses recover automatically from a fault within a few seconds after power is removed At the 26 PWR input and its associated GND conventional1A fuses are used because they are able to protect against 240VAC being applied by accident this could happen if a Model 700DCSP is installed in a cabinet wired for a Model 700ACSP 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD 66 2069 02 REO BRE REAR sc s N OFF ON JOFF Cod ON COM aju AUTO SETUP ON OFF SEQ SEQ 20 AUTO FAULT PRESS BUTTONS FLAME FLAME SET 2 SEC TO ACTUATE SIG ON N SN N RELAY ON LOAD SET FACTORY POINT DEFAULTS INCREASE 2 J A 7 N ZZ gt RAT
36. er and the use of Channels A and B with independent settings ACCESSORIES Orifice disks kit M 702 6 Used to reduce the signal brightness in cases where the signal brightness is too strong Located immediately in front of the lens it will reduce the amount of signal to the sensor Bag assembly contains orifice disks and retaining rings Orifice disks come with 3 8 1 4 3 16 and 1 8 inch diameter holes Contact the factory for guidance in using orifice disks Insulating nipple R 518 13 1 2 in NPTM Ultem heat and electrical insulating nipple typically used in conjunction with a Swivel mount and union VH insulating mounting block 700UA 800UA 1 2 in NPTF Ultem heat and electrical insulating mounting block used in place of the supplied Delrin mounting block 1 4 in NPTF purge air connection Typically used in conjunction with a swivel mount Rated for continuous service up to 320 F 160 C Swivel mounts small 700 1 700 2 700 3 All have 1 2 in NPTM viewing head connections on one end with varying process connections including 1 in NPTF 1 2 in NPTF and 1 2 in flanged Swivel mounts large M 701 1 M 701 2 M 701 2 FLG M 701 2 SS M 701 3 M 701 3P M 701 4 All have 1 in NPTF viewing head connections one end with varying process connections including 2 in pipe slip on 2 in NPTF 2 in flanged 2 in NPTF in stainless steel construction 4 5 in flanged with 3 bolts 3 in NPTF and 2 bolt flanged Appr
37. eriod of four seconds while the value is displayed the display will return to the operation mode without saving the new setpoint To exit the menu at any time without saving changes simply press the RESET rE button The gain is live changes are effective immediately but if the displayed gain value is not stored by pressing STORE and no other buttons are pressed the processor returns to the previous setting after four seconds Relay On Setpoint The two numeric digits on the Model 700 signal processor normally display the incoming count during operation that is the number of pulses that arrive between self check pulses This count ranges from 00 to 29 Refer to Fig 22 for a flowchart of setting the Relay On setpoint Press and hold the RELAY ON SETPOINT key for two seconds to access this setpoint The RELAY ON SET POINT value will be displayed If no further keys are pressed this display will disappear in four seconds and the incoming count will again be displayed If the RESET key is pressed the display will return immediately to displaying the incoming count While the RELAY ON SET POINT is displayed you may increase or decrease the setting by using the INCREASE and DECREASE arrow keys To store the new setting press the STORE button until is shown indicating the value has been accepted To exit the menu at any time without saving changes simply press the RESET rE button or wait 4 seconds until the display re
38. ewing head models and associated features Pipe Fit Connection High 0 5 in NPTM with 50 ft UVTron Frequency Aluminum Stainless Steel Model Connector 15 2 m pigtail Sensor IR Sensor Filter 155Hz Housing Housing 5702 x X X S702HF X X X X S702PF X X X S702HFPF X X X X 5706 X X X S706PF X X X 5802 X X X S802HF X X X X 5806 X X X 1 All models include Electronic self check 2 Flicker Frequency filter settings available for IR sensor models 3 Gain Selection available through Signal Processor The viewing heads the viewing head connector and the cable provided are watertight and have NEMA 4X ratings when the connector is properly tightened with pliers and the cable is protected from UV exposure The availability of both UV sensing and IR flicker sensing viewing heads ensures that the flame monitoring systems can provide good discrimination in most single and some multiple burners firing a single fuel UV sensing is appropriate for monitoring natural gas some mixed gases and light oil flames IR flicker sensing is appropriate for monitoring heavy oil and coal flames SPECIFICATIONS Series 700 and 800 Viewing Heads MODELS 5702 S702PF S702HF S702HFPF 5706 S706PF AND MODELS S802 S802HF AND S806 Electrical 24VDC Power is supplied by Signal Processor Environmental Viewing Head Sealing NEMA TYPE 4X rated when the molded connector ring is tightened wi
39. he computed ratio ranging from 7296 to 8096 the display alternates be tween AC and 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD the computed ratio for example AC and 75 Press either the ACCEPT RATIO or RESET keys If ACCEPT RATIO is pressed the display responds with the ratio is stored and the AUTO SET LED is turned on If RESET is pressed the display returns to the counts both of the AUTO SETUP LEDs are turned off and the old setpoints are used If the ratio computed as a result of BNR ON and BNR OFF data sampling is higher than 80 the display will show UA unacceptable alternating with the unacceptable ratio For example if the computed ratio is 93 the display would alternate between UA and 93 RESET must be pressed to clear this the old values for RELAY ON and RATIO will remain in effect The values can be worse than just unacceptable If the flame relay de energizes while reading BNR ON values the display will show bo and data taking will be aborted Other faults such as a BNR ON flame signal that is too low to use or BNR OFF readings that are too close to the BNR ON readings can result in being displayed RESET should then be pressed The signal processor also adjusts the viewing head gain during the BNR ON and BNR OFF data sampling sequence Normally after the sequence the display should read about 20 because the gain has been a
40. head is sending back an ID pulse this is part of the self checking system When a flame is present the green LED will flash at a rate proportional to the flame signal except when the pulses are interrupted once per second for the self check pulse arrival at the viewing head The pulse rate of the green LED flashes can be used for aiming the viewing head NOTE The LED indicators are provided for alignment and troubleshooting only Reinstall cover with gasket correctly in place at all times and ensure that connector coupling is tightened securely This gasket and cover must be installed properly to maintain NEMA rating Viewing Head Mounting and Sighting Mounting is 1 2 in NPT F for all viewing head models with a 1 4 in NPT F purge air connection Before beginning installation determine the best location for mounting the viewing head based upon the following factors 66 2069 02 Viewing Head Mounting Block The S70X viewing heads are held firmly in place in their mounting blocks by two galvanized steel latches The S80X viewing head is secured in its mounting block by a friction twist lock Refer to the ACCESSORIES section for part numbers Pressure The S70X viewing head lens will withstand 50 psi 3 4 bar while the S80X lens will withstand 90 psi 6 2 bar provided the compression ring on the purge air adapter is tightened properly If the lens assembly is exposed to greater pressures through the sight pipe then an i
41. ing head with the High Frequency filter option is recommended The standard IR viewing head responds to flicker frequencies above 33 Hz with the HF option the IR viewing head responds to flicker frequencies 155 Hz UV Detector The S706 S706PF and S806 viewing head models use the UVTron tube with a spectral response of 185 260nm and peak response of 210nm to ultraviolet radiation The output of the detector is a pulse stream of randomly spaced pulses whose average rate is proportional to the UV radiation present in the flame The UV radiation is a direct result of the combustion process as oxygen combines with hydrocarbons in the fuel in the blue part of the flame The yellow part of flames and the background radiation from hot refractory do not emit UV radiation The spectral range of the UV tube makes it ideal for discriminating between flame and glowing refractory As with any UV radiation it can be absorbed or masked by unburned fuel smoke oil mist dirt dust and other impurities in the fuel Care should be taken to select the proper viewing head for the fuel used Additionally the contaminants that mask UV can be diluted by providing a strong flow of air through the sight pipe to clear a viewing path through the attenuating material See Purge Air on page 8 It may also be desirable to sight the detector at an area containing fewer masking agents such as near the burner nozzle or near the entrance of the comb
42. ing to the RELAY ON setting It is scaled so that if the counts coming in are at a count rate equal to the RELAY ON setting the current output is approximately 13 MA when the range selected is 0 20 MA and about 14 6 MA when the range selected is 4 20 MA Note that the actual maximum level for the current output is 19 8 MA Automatic Setup of Setpoints With this feature the Model 700 signal processors set the RELAY ON SET POINT the RATIO Relay Off and the UV IR GAIN automatically Calculations for these settings are carried out in the signal processor as the operator takes the system through BURNER ON and BURNER OFF sequences Fig 19 20 and 21 flowchart the automatic setup sequence The FFRT flame failure response time and the 0 4 20mA output option must be manually setup after the automatic setup process is complete Refer to the Manual Setup of Setpoints section and Fig 24 and 25 for details on setting these 2 parameters Before starting the automatic setup sequence adjust the RELAY ON SET POINT to get the FLAME ON relay to energize Press BNR ON SEQ START END key for two seconds If the FLAME ON relay is de energized the display will show bo burner off press RESET to clear this If the FLAME ON relay is energized the ON SEQ LED will start flashing slowly and the numeric display will start counting down from 59 while the processor takes data at one reading per second The FLAME ON relay will remain energize
43. ions after a failure Restoration Asa Rate of safe detectable failures per one billion hours For example if Asa 3000 then it is estimated that there will be about 3 000 safe detectable failures during every one billion hours of operation For Agq 3000 this is about one safe detectable failure every 38 years Rate of safe undetectable failures billion hours Add Rate of dangerous detectable failures per one billion hours Adu Rate of dangerous undetectable failures per one billion hours HFT Hardware Fault Tolerance System Architecture Specific configuration of hardware and software elements in a system PFDAve Average Probability of Failure on Demand Average Probability of Failure on Demand In this case regarding the S702 S706 S802 and S806 viewing heads FIT Failures in Time A unit of measurement representing one failure per billion hours 1 000 000 000 hours is approximately 114 155 25 years 66 2069 02 36 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD Safety Function of the S702 S706 S802 and S806 The S702 S706 S802 and S806 viewing heads do not have a safety function They are used to provide flame intensity information via cables to Signal Processor Models 531AC 531DC 532AC 532DC 700AC 700DC and 800 which use Flame Relays to provide a safety function S70X and S80X Viewing Head Proof Test Interval The proof
44. is within 1 4 degree Also the reading shouldn t change when a viewing head is rotated in the mount For the above sighting adjustments to work properly the flashing rate of the green LED in the connector at the rear of the viewing head must be reasonable On the PF pipe fitting version there are no LEDs The installer must observe the flame signal on the signal processor instead A count rate of 16 to 20 is recommended for proper operation If the displayed count is above 25 the pulses begin to blur together making changes in the pulse rate difficult to observe If the displayed count is less than 8 or 10 it will be difficult to maximize the count by adjusting the viewing head aim since the pulses occur too infrequently In such a case the gain should be increased If the gain is set to a maximum and the count rate persists below 8 or 10 the system can still be made to work reliably as long as the count rate drops significantly when the flame is removed However the setup should be reviewed for proper viewing head aim and sight path to ensure it is optimized Orificing Orifice disks have been used in applications with older viewing heads that did not have adjustable gain in order to reduce the extreme brightness of certain burner flames The orifice disk kit is part number M 702 6 Orifice disks come with 3 8 1 4 3 16 and 1 8 inch diameter holes Contact the factory for guidance is using orifice disks The disks are installed
45. isted pairs that are differentially driven and received according to the RS 422 standard Honeywell offers a RS485 422 to USB converter to use in conjunction with the 700ACSP 700DCSP signal processors The Honeywell part number is COMMOD Refer to Fig 7 and Fig 8 for a typical communication wiring and addressing scheme as well as the required wiring of the COMMOD communication converter The 700ACSP and 700DCSP signal processors have two modular phone jacks for RS 422 communications The jacks are wired in parallel so that point to point cables can be jumped from unit to unit to interconnect multiple Model 700 signal processors The RS 422 interface IC is a MAX489 The ICs can drive up to quantity 32 Model 700 signal processors on the same bus For communication with external controls or computers refer to Table 4 for the Modbus registers map Communication Setting 700ACSP and 700DCSP can only communicate via Modbus RTU protocol with the following configuration 9600 baud 8 data bits no parity 1 stop bit NOTE Default protocol must be changed in order to use Modbus communication It may be set for Modbus by HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD using key sequence below at the front panel of the 700 as follows 1 Press and hold BNR OFF SEQ START END button for 2 seconds 2 Press up arrow to change setting from P0 to P1 3 Press STORE The factory default Modbus address of the 700ACSP and 70
46. l 700 800 Viewing Head Cable Connections Cable Preparation NOTE This section will typically be used for reference only The S70X S80X connector parts are very small and delicate and difficult to assemble It is advisable to purchase pre made cables from Honeywell Honeywell C330S cable is recommended for use with the S70X S80X viewing heads and signal processors C330S has a UL ITC rating and can be used in the U S in hazardous locations NOTE Shield shrink tubing is required on shield drain wire at the signal processor end Preparation of the C330S cable at the signal processor should be done as follows 1 Referring to Fig 5 strip cable 2 inches back to expose the braided shield NOTE IMPORTANT INSULATE DRAIN WITH SHRINK TUBING LEAVING 3 8 STICKING OUT 2 Pull braided and foil shield back so that only drain wire is at 2 inch length Trim the foil and braid shields at the cable jacket 3 Insulate the drain wire with heat shrink 4 Strip other wires as shown in Fig 5 Connection of the Honeywell type C330 cable to the viewing head plug is shown in Fig 6 Cable preparation should be done as follows 1 Prepare C330S wire at plug end similarly to Fig 5 but shorten the drain shield to approximately 1 4 inch only at the plug end see Fig 6 2 Assemble the field wireable plug as shown in Fig 6 Ensure that a Wires are in proper locations per Fig 4 b Shield is pressed against connector ho
47. nd RF Remove any light source to generate flame off condition and using a multimeter ensure continuity between RF A COM and A and between RF B and RF B after the FFRT Flame Failure Response Time has elapsed Measure the current draw of the signal processor with its viewing head attached and ensure it is less than 0 07A RMS for 700AC signal processors 250mA for 700DC signal processors Measure the DC voltage between ground VH GND and VH V going to the viewing head Ensure it is between 20 and 26 V DC Change one of the settings of the signal processor and store the changed setting Remove power to the signal processor for 10 seconds Restore power to the signal processor and ensure the stored value has remained unchanged Use your light source to generate flamecounts of between 12 and 22 on the signal processor Note the flamecount a Increase the gain and store the setting Ensure the flamecount increased b Decrease the gain and store the setting Ensure the flamecount decreased Restore all original settings as recorded in Setup and reconnect the signal processor to the safety system Product Decommissioning When required decommissioning of the 700 should be performed in accordance with requirements of the overall safety system 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD SAFETY MANUAL S7
48. opriate fittings must be used to adapt the 1 2 in NPTF viewing head process connections Insulating locking coupler adapters R 518 PT13 R 518 PT13L 1 2 in NPTM Ultem adapters insulate the viewing head electrically and thermally and are used with the R 518 CL13 HTG locking couplers The R 518 PT13L has a quartz lens Locking coupler R 518 CL13 HTG Used with the R 518 PT13 and R 518 PT13L insulating locking coupler adapters Process connection end is 1 2 in NPTF Connector ASY786 gt Replacement field wireable connector Cable and Connectors S70X S80X Viewing Heads ASY785 gt 50 foot C330S cable with pre wired ASY786 connector ASY785 200 gt 200 foot C330S cable with pre wired ASY786 connector Cable C330S 4 conductor with drain foil braided shield Sold per foot Isolation Units ISO UNIT ISO UNITSS ISO UNITHPGT All have 1 in NPTF connections with 1 2 in NPTF purge ports and quartz window Painted aluminum or stainless steel construction The HPGT version has a 1 2 in thick quartz window for higher pressures Appropriate fittings must be used to adapt the 1 2 in NPTF viewing head process connections Air cooling canister 700ACC 800ACC Has an air inlet port on side Used with vortex coolers S80X models can be used with the 700ACC if the 800ACC RING adapter is used 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD Vortex coolers M3204 M3208 M3210 M4025
49. rdous or fail to function state Safety related System A system that implements the required safety functions required to achieve or maintain a safe state and is intended to achieve on its own or with other systems the necessary safety integrity for the required safety functions Safety Function Defined function which is performed by a safety related system with the aim of achieving or maintaining a safe state for the plant in respect of a specified hazardous event Proof Test MTTR Mean Time to Restoration Periodic test performed to detect failures in a safety related system so that if necessary the system can be restored to an as new condition or as close as practical to this condition The average duration required for restoration of operations after a failure Asd Rate of safe detectable failures per one billion hours For example if Asq 3000 then it is estimated that there will be about 3 000 safe detectable failures during every one billion hours of operation For 2 4 3000 this is about one safe detectable failure every 38 years Rate of safe undetectable failures per one billion hours Add Rate of dangerous detectable failures per one billion hours Adu Rate of dangerous undetectable failures per one billion hours HFT Hardware Fault Tolerance System Architecture Specific configuration of hardware and software elements in a system of Failure on Demand PFDayg Average
50. requirements For electrical isolation reasons the Honeywell Ultem R 518 13 nipple or R 518 PT13 R 518 purge air line should be installed using and insulating material PT13L locking coupler adapter and R 518 CL13 HTG locking such as a rubber hose in between the purge air line and the coupler can also be used for heat insulation reasons Refer to viewing head Note that an extension pipe may be required to the Accessories section of this document for accessory part locate the viewing head further from the burner front plate to numbers avoid high temperatures Additionally an Ultem replacement 21 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD HIGH FREQUENCY FLICKER ZONE DETECTOR IN GOOD SIGHTING POSITION PARALLEL SIGHTING BURNER NOZZLE CENTERLINE 4 DETECTOR IN POOR SIGHTING POSITION LOW FREQUENCY FLICKER ZONE M33285 Fig 15 IR Viewing Head Location UV RADIATION ZONE UV VIEWING HEAD SIGHTED lt pi ON UV ZONE BURNER NOZZLE CENTERLINE NI M33286 Fig 16 UV Viewing Head Location 66 2069 02 22 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD NO 1 FLAME NO 2 FLAME ENVELOPE ENVELOPE VIEWING HEAD i i VIEWING HEAD sas _ _ x SME Ton BURNER NOZZLE NO 1 BURNER NOZZLE NO 2 FREQUENCY LOW FREQUENCY HIGH FREQUENCY IRZONE ZONE IRZONE LESS THAN 36Hz
51. ress the RESET rE button The following describes the functions of the LED indicators display and push buttons Front Panel LED Indicators and Display ON SEQ AUTO SET LED green Used in conjunction with the BNR ON SEQ START END and BNR OFF SEQ START END buttons during the automatic setup process OFF SEQ FAULT LED green Used in conjunction with the BNR ON SEQ START END and BNR OFF SEQ START END buttons during the automatic setup process Indicates a fault condition Two digit display When in operating mode the display indicates the current flame signal which ranges between 00 and 29 Upon power up indicates whether an IR or UV viewing head is attached and the selected gain setting such as r7 IR with gain of 7 or u5 UV with gain of 5 Indicates various characters during the automatic setup process as well as whether the panel is locked FLAME SIG LED yellow When a flame is present LED flashes at a rate proportional to flame signal except when the pulses are interrupted once per second for viewing head self checks FLAME ON LED red When the flame signal is above the selected value the LED will be illuminated and the flame relay will be energized Push Button Functions RELAY ON SETPOINT button Allows user to select flame on threshold value When the flame signal is above the selected value the flame relay will be energized Used in conjunction with the 66 2069 02 HONEYWELL MODEL 700
52. s This is one of the reasons for choosing an optimum sighting initially that will minimize signal swing due to changing loads HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD Self Checking The self check circuitry guards against internal component failure There are several tasks that require intelligent interaction between the viewing heads and the signal processor If all of these interactions do not occur properly the viewing head will not send pulses back to the signal processor and the flame relay will open Adjustment of VH Sighting and Gain NOTE Adjustment to the viewing head parameters cannot be made unless the viewing head is connected and communicating with the signal processor The viewing head should be properly sighted before the setpoints are adjusted Adjustment can be made easier by a 1 2 in swivel joint which Honeywell can supply if one is not available refer to Accessories on page 9 While the burner is firing vary the viewing angle while observing the green LED on the connector at the rear of the viewing head Adjust the viewing angle for the maximum pulse rate then lock the swivel joint to preserve this mechanical setting If the green LED pulse rate is very high or very low see the two paragraphs below The locked mechanical setting should still be correct when Model 700 viewing heads are interchanged because inside each Model 700 viewing head the optical axis is aligned with the mechanical ax
53. solation unit must be used Honeywell isolation units with purge air entrance are available as accessories ISO UNIT ISO UNITSS ISO UNITHPGT Each has a quartz window two 1 in NPTF connections and a 1 2 in NPTF purge port Temperature The case temperature of the viewing head housing must not exceed 185 F 85 C while the standard Delrin mounting block must not exceed 180 F 82 C continuous service Care should be taken to ensure the case housing and mounting block temperatures do not exceed these values Purge air will help reduce conducted heat through the sight pipe and flange A heat insulating Ultem replacement viewing head mounting block is available for both the S70X S80X models part numbers 700UA and 800UA with a continuous service rating of 320 F 160 C as well a 1 2 in NPTM Ultem nipple part number R 518 13 or an Ultem locking coupler adapter R 518 PT13 or R 518 PT13L to reduce the conducted heat but direct radiation can cause the housing case temperature to exceed limits If the ambient heat direct radiation is excessive then an air cooling canister with vortex cooler should be considered or alternately a fiber optic extension The extension uses a fiber optic cable assembly between the sight pipe and the viewing head allowing the viewing head to be placed further away from the heat source Refer to the Fiber Optic Manual 69 2683 or contact your distributor or the factory for assistance with fiber optic selec
54. tem reconnect the signal processor to the safety system 66 2069 02 38 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD 39 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD Automation and Control Solutions Honeywell International Inc 1985 Douglas Drive North Golden Valley MN 55422 customer honeywell com U S Registered Trademark 2014 Honeywell International Inc 66 2069 02 M S Rev 03 14 Printed in United States Honeywell
55. test must be conducted every 1 to 5 years This range is given to allow for the test to be performed during the normally scheduled burner shutdown period It is the responsibility of the user to perform the proof test in the specified time frame The following diagrams present the dependence of the PFDayg on the proof test interval The PFDayg increases as the proof test interval increases 5706 AND 5806 PFD VS TIME 3 50 3 00 5 2 50 2 00E 5 PFD AVG 1 50E 100E 5 00E 0 00E 0 0 1 2 3 4 TIME YEARS 5 6 7 8 9 10 M35040 Fig 29 Dependence of the PFDayg the proof test interval for 5706 amp S806 S70X and S80X Viewing Head Proof Test Procedure Equipment 1 700 or P532 Signal Processor connected to the S702 5706 5802 or S806 viewing head 2 DC power supply for DC model signal processor and AC power supply for AC model 3 Asource capable of generating UV or IR signals as required NOTE For UV use Honeywell UVsource For IR connect incandescent lamp to AC source Setup 1 Ensure the S702 S706 S802 or S806 viewing head under test is correctly connected to a compatible signal processor 2 While performing the proof test disconnect or disregard the signal processor outputs so that any outputs due to testing do not affect the overall safety system and potentially cause a hazardous situation 3 Record all previously entered user programmable settings so that yo
56. th pliers and a UV protection is provided for the cable by installing in conduit Ambient Temperature 40 F to 185 F 40 C to 85 C IR Detector Spec 5702 S702PF S702HF S702HFPF S802 S802HF Germanium photodiode with spectral response 950nm to 1710nm 1 2 intensity points and peak spectral response at 1400nm High Pass Filter Pickup 33 Hz standard 155 Hz high frequency option HF IR Optical Angle of View 1 degree 1 45 in dia at 6 ft or 3 7 cm dia at 1 8 m 66 2069 02 UV Detector Spec 5706 amp S706PF S806 UVtron with spectral response 185nm to 260nm and a peak response at 210nm UV Optical Angle of View 5 degrees 1 inch per foot Cable amp Connectors S70X S80X Viewing Heads New installations highest level of EMI shielding available ASY785 gt 50 foot C330S cable with pre wired ASY786 connector ASY785 200 gt 200 foot C330S cable with pre wired ASY786 connector ASY786 gt Field wireable connector with shield Dimensions Refer to Fig 9 and Fig 10 Model 700ACSP amp Model 700DCSP Signal Processer Electrical Model 700ACSP Primary Input Power 85 265VAC 50 60 HZ 0 07A Max fused with either V H connected Battery Backup Voltage 22VDC to 26VDC 0 2A DC Max fused with either V H connected Electrical Model 700DCSP Primary Input Power 22VDC to 26VDC 250 mA Max fused with either V H connected Battery Backup Voltage 22VDC to 26VDC 0 5A DC Max fused with
57. the direction of the flame If used the sight pipe should be mounted as close to the center line as possible so as to sight along the flame rather than across the flame Doing so will ensure continuous flame detection under changing load conditions See Fig 15 16 and 17 Utilizing a sighting or the sight pipe aimed at the root of the flame where the turbulent combustion air mixes with the flame is a good starting point for optimizing the sighting Where practical using a swivel mount to zero in on the highest signal will assure maximum performance The optimum scanner location is parallel to the burner center line The use of a swivel mount allows for line of sight adjustment where practical to use Examples of viewing head installation with and without a swivel mount are shown in Fig 13 and Fig 14 If using a sight pipe its diameter should be large enough to allow a reasonable field of view and to allow for adjustment of the swivel mount angle In some instances it may be beneficial to use two sets of setpoints for Flame On Flame Off and gain The two channel capability primary and alternate viewing head settings is ONLY possible when using the P531 or P532 signal processors it is not possible when using the 700ACSP or 700DCSP signal processors The switch over from Channel A to Channel B can be implemented from the burner control system Refer to the P531 P532 user manual 66 2068 for further information regarding switch ov
58. tion and pricing Purge Air Use a flexible air supply line to allow for repositioning of the viewing head and sight pipe until a final and permanent HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD position has been decided A continuous flow of air must be maintained in order to reduce the conducted heat and to keep the sight pipe and viewing head lens free of dirt and debris Air required is about 5 SCFM 0 13 Nm3 min delivered at 1 in 25mm above the maximum pressure as measured at the Y or T section of the purge air connection for each viewing head The air supply must be clean free of oils and water and preferably cool In order to electrically isolate the viewing head the purge air line should be installed using an insulating material such as a rubber hose in between the purge air line and the viewing head Vibration Do not install the viewing head where it could be subject to high vibration Provide an anti vibration mount if excessive vibrations are present Clearance Make sure there will be sufficient room to remove the viewing head housing for servicing Viewing Head Mounting Honeywell offers a range of swivel mounts both pipe thread or flange mounting for use with sight pipes or direct wind box mounting See Accessories on page 9 or the Honeywell website for further details Viewing Head Sighting The sighting of the viewing head should be parallel to the center line of the burner in
59. tures offered resulting in ten different models See Table 1 on page 2 for details The S702 and S706 viewing head housings are larger in diameter than the S80X series are made of aluminum and are secured with over center latches to their mounting blocks Fig 9 In contrast the 5802 and S806 viewing head housings are smaller in diameter and are made of stainless steel Fig 10 An 800 series viewing head is secured in its mounting block by a friction twist lock The IR flicker sensitive viewing heads have a high pass filter that passes flicker frequencies above 33 Hz Some models have a built in high pass filter that only passes frequencies above 155 Hz The high frequency filter models are identified by adding HF to the model number The UV models respond to the level of UV radiation not UV flicker so there is no filter option Contents Application 1 3 uten aepo kek pas eects dd et 1 ae 1 Specifications 2 Approvals u ce Andre neds 3 Installation a u cede teet sm 3 Operation M 10 Modbus Communication 14 Troubleshooting 17 Maintenance er 17 Safety Manual 700 Signal Processor 33 Safety Manual S70X amp 80X Viewing Head 36 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD Table 1 Available vi
60. u can restore them to their desired values after the proof test 37 Tests NOTE S702 and S802 viewing heads must be illuminated an infrared light source 5706 and S806 viewing heads must be illuminated by an ultraviolet light source 1 Apply power to the signal processor fully illuminate the viewing head with the light source and ensure that a flame on condition is indicated by the signal processor 2 Gradually angle the light source away from the viewing head Ensure that the count decreases until a flame off condition is indicated by the signal processor 3 Cover the end of the viewing head with your hand and ensure that the signal processor indicates a flame count of zero 4 For model 531AC 531DC 532AC and 532DC signal processors use your light source to generate a flamecount of between 1200 and 2800 and note the flamecount For model 700AC 700DC and 800 signal processors use your light source to generate a flamecount of between 12 and 22 and note the flamecount 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD a Increase the gain and store the setting Ensure the Product Decommissioning flamecount increased b Decrease the gain and store the setting Ensure the When required decommissioning of the S70X and S80X viewing heads should be performed in accordance with flamecount decreased 5 Restore all original settings as recorded in Setup and requirements of the overall safety sys
61. using c Connector back plate gasket is in place before installation d After assembly check that connector is tight and well secured vw STRIP 3 8 INCH 25 1 19 64 33 TYPICAL M35139 Fig 5 C330S Signal Processor End Cable Preparation 66 2069 02 HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD M35140 Fig 6 ASSY786 Viewing Head Plug Assembly with C330S Protecting the Viewing Head Cable Connector Series Note that when the wiring needs to meet Class Division 2 requirements for use in hazardous locations and when conduit is used the conduit must be sealed where the cable passes from the hazardous location to the non hazardous location in order to keep potentially hazardous gases from being conducted into the non hazardous area Viewing Head Connector LED Indicators The viewing head connector has orange and green LEDs which can be viewed from the rear of the connector when the connector cover is removed The green LED displays the pulses out of the viewing head and the orange LED shows that the self checking signal from the signal processor is reaching the viewing head If power is on at the signal processor the orange LED should flash at one pulse per second even if the viewing head is not plugged in This is helpful in troubleshooting With no flame signal present the green LED will flash one pulse per second in step with the self checking signal The viewing
62. ustion air Increasing the viewing area of the detector by shortening the sight pipe or by increasing the diameter of the sight pipe can also reduce the attenuating effects of the masking agents In general the UV viewing heads will work well on natural gas and light oil flames The sighting for both oil and gas flames should be parallel to the axis of the burner and aimed at the root of the flame as with the IR detector See previous section IR Detector The highest UV intensity occurs near the root of the flame Fig 16 In addition the zone of higher UV intensity does not overlap the same zones of adjacent or opposing burner so that with proper sighting discrimination can be achieved With low NOx gas burners the UV radiation is usually much less in intensity and spread out Relatively high readings can be obtained from all over the furnace when many burners are in service This is particularly true when flue gas recirculation is used There will however be a relatively stronger signal near the root of the flame and the more intense spot should be located during the aiming or sighting process This root or intense spot may be further out than with the standard gas burner so it is imperative that a swivel mount be used when making sighting adjustments Another factor that needs to be considered when aiming the viewing head is the load condition of the boiler The flames from a burner can be radically different at different load
63. verts to the incoming count value To extend the display time press the RELAY ON SETPOINT button again the display will time out for four seconds after the key is released if no other buttons are pressed The displayed value of the RELAY ON SET POINT is live that is if the relay is off and the adjusted value falls below the current flame signal count the relay will turn on immediately FFRT settings are ignored This immediate response can be seen if the count is low and the RELAY ON SET POINT is set above it if the RELAY ON SET POINT is then adjusted down to the count level the FLAME ON relay will be energized Ratio Relay Off Relay On Setpoint For a flowchart of this setpoint process refer to Fig 23 The key labeled RATIO 96 RELAY OFF RELAY ON is used to set the RELAY OFF SET POINT at a percentage of the RELAY ON SET POINT This percentage is adjustable from 2096 to 80 For example if the RELAY ON SET POINT is set to 16 and the RATIO 96 is set to 50 the factory default values the relay will energize if the displayed count goes to 16 or higher and de energize when the count drops to 08 or less for one to three seconds depending on the FFRT Flame Failure Response Time setting The adjustment of the RATIO setting HONEYWELL MODEL 700 800 SIGNAL PROCESSOR AND VIEWING HEAD is live Adjustments will cause the Flame Relay to de energize immediately ignoring FFRT settings To access this setpoint press and hold the ACC

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