User Manuals - Honeywell Analytics
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1. Accept button 7 If the correct password is entered you will be sent to the MAIN MENU 8 Inthe MAIN MENU scroll until the ModbsID screen is displayed 9 Press Acceptto enter Modbus Address Change menu The current programmed Modbus adaress will be displayed if not programmed at the factory the default address is 001 10 If the Modbus address is correct keep pressing the Accept button until you are prompted to accept the current Modbus address You will then be returned to the MAIN MENU Manning EC F9 NH3 Sensor 19186 ECF9NH3 11 If the Modbus address is not correct using the Accept and Scroll buttons change the Modbus adaress the correct value 12 You will then be prompted to save the changes Press Acceptto save and Scrollto abort You will then be returned to the MAIN MENU 13 Use scroll button to navigate through the main menu To exit the menu scroll until the LCD displays Quit and press the Accept button This will return you to normal operating mode The LCD module can be unplugged at this time NOTE After 5 minutes of inactivity the LCD returns to normal idle operating display Figure 7 CalPro LCD Module EC F9 NH SN SENSOR Honeywell LCD Module Plug TEST 40 to 200 MVDC TEST ECF9 NH3 0 PPM Accept Scroll o o Risk of electrical shock 3 Ope ra2. 100 ppm ee 10 4 mA 250 ppm X 18 47 104m Signal 10 4 mA 104 mV from TEST to TEST If the correct output cannot be achieved a replacement cell is required 3 Ope ration continued MODBUS Address Change of NOTE To view or change the Modbus address the Manning CalPro LCD Module is required Contact Honeywell Analytics to obtain the module B NOTE No two devices on the network can have the same address Each device needs to have a unique address Each device requires an address to communicate with the controller on the network The Modbus address normally comes factory programmed and does not require to be programmed at startup If it is determined that the Modbus address needs to be Using the LCD module to view or change the Modbus address The LCD module has two push buttons Accept and Scroll which will be utilized for this procedure see Figure 7 NOTE To display the Modbus address press the Scroll button anytime during normal operating mode 1 Plugin the LCD module to the LCD port on the PCB see Figure 7 2 This module will power up immediately and will display the normal idle operating display 3 Press the Accept button 4 You will then be prompted for a password The password is MA 5 Use the Scroll button to change the first letter to M Then press the Accept button 6 You will then be prompted to change the second letter If it is already set to A press the
3. Exit Unit resumes normal mode automatically after about 20 seconds Green LED remains continuous ON and yellow LED is unlit 8 M Continuous ON e LED is OFF Manning EC F9 NH3 Sensor 19186 ECF9NH3 4 20 mA Loop Test NOTE This test is recommended especially for PLC operations non Manning readout alarm unit NOTE This test will not automatically time out You must force the unit into normal operation Full Scale Test This test will verify that the full scale output of the sensor is also achieved at the PLC Start Place meter leads on Test and Test Press button five times within a two or three second period of time The voltmeter should read approximately 220 mV equal to 22 0 mA output Verify full scale signal at PLC NOTE some PLCs limit input to 20 mA Blink sequence will be 8 Continuous ON D ik fe i Fast blink Signal Fault Test This test will simulate one of many sensor fault conditions in which the transmitter will send 0 5 mA to the control panel To check for downscale fault verification press button for one second voltmeter should read approximately 5 mV equal to 0 5 mA output Verify downscale fault indication at PLC Blink sequence will be Continuous ON Medium blink PLC and monitoring equipment should indicate Fault at this extremely low signal output i e Honeywell Analytics recommends fault indication
4. on any signal below 1 5 mA Exit Press and hold button for one second Sensor will exit test and return to normal operation 8 Continuous ON NOTE This test will not automatically time out You must force the unit into normal operation 3 Ope ration continued Simple Zero Test Span Calibration Mode Start With meter set to mVDC place leads on Test and Test see Figure 4 Note 3 Press and hold button for one second to enter the Calibration Mode Slow blink Unplug the cell from the pre amp Observe the 4 20 mA signal which should be approximately 4 0 mA 40 mV on meter Range should be 39 4 to 40 6 mV If sensor output is not in this range contact Honeywell Analytics Plug cell back into pre amp Wait for cell to stabilize at approximately 4 0 mA Exit Press and hold button for one second places unit in Normal Operation Mode Continuous ON PLC and monitoring equipment should indicate Fault at this extremely low signal output i e Honeywell Analytics recommends fault indication on any signal below 1 5 mA Exit Press and hold button for one second Sensor will exit test and return to normal operation Blink sequence will be 86 M Continuous ON Manning EC F9 NH3 Sensor 19186 ECF9NH3 B NOTE If using the Modbus RTU output with the Manning AirAlert 96d controller while in calibration mode
5. second for concentrations gt 1 NH Sensor Viability Test An internal microprocessor determines the sensor s electrical viability every 24 hours SensorCheck Should the electrical viability test fail a 0 5 mA signal will indicate a fault A red LED on the circuit board will indicate if a sensor is degraded electrically dried up or disconnected Manning EC F9 NH3 Sensor 19186 ECF9NH3 4 20 mA Loop Viability Test Internal monitoring of 4 20 mA output impedance Operating Humidity 5 10096 RH condensing ATMOS equipped enviro adaptive technology option required for condensing conditions or refrigerated areas and all outdoor applications Operating Temperatures 50 F to 120 F ATMOS equipped enviro adaptive technology option required for refrigerated areas or outdoors Sensor Pressure Limits 0 10 PSIG Power Source 24 VDC recommended 0 5 amp max 14 26 VDC acceptable NOTE If sensor is ATMOS equipped contact Honeywell Analytics if supply voltage is less the 16 VDC Cable Recommendations 4 20 output 18 3 shielded cable Belden 8770 or equal cable runs lt 1 500 feet Modbus RTU RS 485 For communication cable use 24 AWG twisted pair shielded Belden 9841 or equal cable runs up to 2 000 feet For power cable use 14 AWG Belden 5100UE or equal cable runs up to 1 000 feet for each power supply Larger power cable and or additional power supplies may be required for longer cable runs an
6. vapor lights variable speed drives and radio repeaters Protect sensor from physical damage fork lifts etc Do not mount the sensor over a door in a refrigerated area Figure 1 Mounting Dimensions 5 16 diameter MOUNT ENCLOSURE THIS END UP DO NOT BLOCK PERFORATED VENT HOLES Manning Gas Sensor Sens rCheck LUTON 6 3 4 Honeywell 2 Instal lation continued CAUTION Sensor must be mounted vertically Never mount flat on a ceiling Enter enclosure only through existing hole in bottom Always make a drip loop in the conduit see Figure 1 Blast Freezers Never mount sensor above the coil The ideal location when possible is below the bottom of the coil Try to put in return air and protect the unit from being damaged by product loading and unloading Keep it away from warm moist air during defrost Usually four or five feet off the ground is the best location Penthouses Multi Coil defrost one coil at a time In this case the best location is usually in the center of the penthouse four or five feet above the grate Single Coil or when all coils defrost at the same time In this case high moisture conditions can occur and the sensor should be mounted one foot above the grate Engine Rooms The Manning EC sensor should be mounted in a cool part of the room if possible Keep the sensor away from hot air exhausting from electric motor
7. B clockwise 15 full turns This will decrease the sensitivity and reduce the jumpiness of the new cell D Calibration is definitely required after this adjustment S TEST Electrical Interference This sensor has been designed to be highly resistant to EMI RFI using multiple stages of filtering and protection However in extreme E 40 200 mV environments some noise pickup can occur directly through the sensor Ensure that the bare shield wire of the instrument cable is connected to the terminal block marked SHLD at the sensor not touching the metal enclosure and properly grounded at the readout unit Interference Gases The Manning EC F9 NH is designed to be quite specific to ammonia However some other gases can affect the reading Phosphene methyl mercaptan and hydrogen can give a slight upscale indication Bromine ozone fluorine chlorine and nitrogen dioxide can give a slight down scale indication Contact Honeywell Analytics if any of these gases are present in your application Note 2 Power supply voltage Note 3 Sensor output Manning EC F9 NH3 Sensor 19186 ECF9NH3 18 3 Ope ration continued p Maintenance For proper operation it is essential that the test and calibration schedule be followed Honeywell Analytics recommends the following maintenance schedule Calibration should be performed with certified ca
8. Honeywell Ammonia specific Electrochemical Gas Sensor Transmitter Manning EC F9 NH Instruction and Installation Manual 04 13 Certified for electrical shock and electrical fire hazard only La certification couvre uniquement les risques de chocs lectriques et d incendies d origine lectrique Release F Honeywell Confidential and Proprietary This work contains valuable confidential and proprietary information Disclosure use or reproduction outside of Honeywell Inc is prohibited except as authorized in writing This unpublished work is protected by the laws of the United States and other countries Notices and Trademarks Copyright 2013 by Honeywell International Inc Release F April 2013 While this information is presented in good faith and believed to be accurate Honeywell disclaims the implied warranties of merchantability and fitness for a particular purpose and makes no express warranties except as may be stated in its written agreement with and for its customers In no event is Honeywell liable to anyone for any indirect special or consequential damages The information and specifications in this document are subject to change without notice Manning is a registered trademark of Honeywell International Inc Other brand or product names are trademarks of their respective owners Honeywell Analytics 23500 W 105th St MD 400 Olathe KS 66061 847 955 8200 800 538 0363 detectgas honeywell com www honeywel
9. aid to Honeywell Analytics at 405 Barclay Blvd Lincolnshire IL 60069 in a package equal to or in the original container The Product will be returned freight prepaid and repaired or replaced if it is determined by Honeywell Analytics that the part failed due to defective materials or workmanship The repair or replacement of any such defective part shall be Honeywell Analytics sole and exclusive responsibility and liability under this limited warranty Exclusions A If gas sensors are part of the Product the gas sensor is covered by a twelve 12 month limited warranty of the manufacturer B If gas sensors are covered by this limited warranty the gas sensor is subject to inspection by Honeywell Analytics for extended exposure to excessive gas con centrations if a claim by the Purchaser is made under this limited warranty Should such inspection indicate that the gas sensor has been expended rather than failed prematurely this limited warranty shall not apply to the Product C This limited warranty does not cover consum able items such as batteries or items subject to wear or periodic replacement including lamps fuses valves vanes sensor elements cartridges or filter elements Manning EC F9 NH3 Sensor 19186 ECF9NH3 Warranty Limitation and Exclusion Honeywell Analytics will have no further obligation under this limited warranty All warranty obligations of Honeywell Analytics are extinguishable if the Produc
10. alarms A B and C will not be activated during calibration of the sensor B NOTE When replacing an aged or non responsive cell the new cell may cause an erratic or jumpy signal sometimes causing false alarms This is usually caused by excessive gain leftover from adjusting the span pot increasing the sensitivity for the old cell Once the span calibration is performed on the new cell the gain will be decreased to match the sensitivity of the new cell reducing the jumpiness of the new cell B NOTE It is not recommended that any span gas with a concentration lower than 1 2 of the full scale range is used for span calibration For example for a 0 500 ppm ranged sensor do not use span gas lower than 250 ppm The Manning EC F9 NH comes factory calibrated and should require minimal adjustments after installation There is one pot on the preamp that is used for Span calibration see Figure 4 B Note 1 There is no zero pot as the pre amp is factory zeroed and should not require any further adjustment Calibration Kits are available from Honeywell Analytics Each calibration kit contains certified calibration gas and complete detailed instructions for calibration of all Manning sensors 3 Ope ration continued Span Calibration The unit is factory calibrated and normally does not need to be spanned upon initial installation Do not adjust the span pot without certified calibration gas If span calibration is required
11. ally best to disconnect external alarms and other equipment from the sensor until the initial start up procedures are completed SensorCheck is initiated each time the unit is powered up After power up allow 24 hours for the system to stabilize before testing the sensors Because sensors are normally located at a distance from the main unit the test time required and accuracy of the response checks will be improved if two people perform the start up procedures and use radio contact Simple Start Up Test One person exposes each sensor to a small amount of the gas that is being monitored The second person stays at the control unit to determine that each sensor when exposed to the gas fumes is connected to the proper input and responds causing appropriate alarm functions B Pushbutton Operation and LED Indicators For press and hold activations one s finger must always be applying a down pressure without disruption for the specified time in order to activate the desired mode See complete details of each B operation in other parts of the manual The Manning EC F9 NH has been designed with three distinct test mode procedures that are triggered by the appropriate push button action These test modes include Manual SensorCheck Simple Zero Test and 4 20 mA Loop Check The fourth operation puts the unit into Calibration Mode to allow for testing with a certified calibration gas standard and to provide in
12. be obtained from Honeywell Analytics Simply unplug the ribbon cable from the pins labeled Sensor pull the old cell from the spring clip discard the old cell and replace it with a new one The sensor should be checked according to the following procedure after a five minute warm up period EC Cell Replacement Procedure Remove the old EC cell Plug in new EC cell making sure connector pins are positioned correctly Be sure ribbon cable is snug under plastic clip see Figure 8 Note 4 Allow cell to stabilize for five minutes Perform manual SensorCheck using the procedure in the SensorCheck section Manning Systems recommendation is to check calibration of all new cells with certified calibration gas Follow procedure in Calibration section of this manual E Replacement Parts For replacement parts contact Honeywell Analytics Be sure to give serial number of unit and model number Limited Warranty Limited Warranty Honeywell Analytics Inc warrants to the original purchaser and or ultimate customer Purchaser of Manning products Product that if any part thereof proves to be defective in material or workmanship within eighteen 18 months of the date of shipment by Honeywell Analytics or twelve 12 months from the date of first use by the purchaser whichever comes first such defective part will be repaired or replaced free of charge at Honeywell Analytics discretion if shipped prep
13. d or increased number of sensors Due to variables such as sensor current draw line loss and cable size contact Honeywell Analytics for help with power requirements Gas Sampling Diffusion method is standard Enclosure NEMA 1 gasketed 16 gauge steel standard Stainless steel or explosion proof designs including modified enclosures for low temperatures ventilation ducts etc are available contact Honeywell Analytics NOTE The standard EC is for use in non classified areas only Weight 3 lbs Dimensions 6 high x 4 wide x 3 5 deep 2 Installation A Locating the Manning EC F9 NH Sensor Because each sensor is a point measurement it is very important that the sensor be located properly B One of the most important considerations when installing EC sensors is that they must be easily accessible for calibration and maintenance As a general rule locate sensors no closer than one foot from the ceiling If the primary application is personal protection representative concentration reading that an employee would be exposed to mount the sensor at a height in the breathing zone of the employees It would typically be about five feet off the ground which also allows easy access If the primary application is the fastest possible leak detection mount the sensor near the potential leak sources In the case of ammonia this is usually near the ceiling as ammonia vapor is lighter than air In cer
14. e In the event of corrupted data calibration values and Modbus ID may be lost but the gas sensor and 4 20 mA output circuit would still be operational In the event of a CPU failure a 0 5 mA fault signal is output from the sensor All other functions and devices would be inoperable optional LCD network pushbuttons etc Contact Honeywell SN Analytics for technical support M LI Honeywell Figure 5 Manning EC F9 NH Sensor Components Note 5 Pushbutton Note 1 Span adjustment Note 4 Sensor cable plugs in here Verify that sensor is plugged in properly and cable is secured EC F9 NH3 Slow Blink Near death possible dried up or disconnected Cell A 0 5 mA fault signal is output from the sensor during this error event A replacement cell should be ordered at this time Medium Double Blink Possible weak cell Cell is nearing the end of its useful life Although the sensor may pass the span calibration or detect the presence of ammonia frequent attention and increased calibration checks are strongly recommended until the cell is replaced EE ecc 26 5 ui APS Note 2 LEDs Fast Blink Possible 4 20 mA loop failure or load resistance too high Check output impedance and ensure it is between 100 and 700 referenced to ground In addition ensure power supply voltage is within specified operating ra
15. ed or lost or may result in the inability to properly operate the process CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices CAUTION symbol on the equipment refers the user to the product manual for additional information The symbol appears next to required information in the manual Manning EC F9 NH3 Sensor 19186 ECF9NH3 4 Contents Serial number Section Title Page 1 System Description 6 Specifications 6 2 Installation 7 A Locating the Manning EC F9 NH Sensor 7 B Wiring 9 3 Operation 11 A Start up Procedures 11 B Pushbutton Operation and LED Indicators 11 LED Blink Sequence 11 LED Sequence Indicator and Operation Summary 13 SensorCheck 14 4 20 mA Loop Check 14 Simple Zero Test 15 Span Calibration Mode 15 Modbus Address Change 17 C Troubleshooting 18 D Maintenance 19 EC Cell Replacement Procedure 19 E Replacement Parts 19 4 Limited Warranty 20 Introduction This manual has been prepared to help in the use and installation of the Manning EC F9 NH Electrochemical Ammonia Sensor This manual will convey the operating principles of the sensor ensure proper installation and demonstrate start up and routine maintenance procedures for the sensor B ATTENTION This manual must be carefully followed by all individuals who have or will have the responsibility for using or servicing the sensor Warran
16. es in sensor wiring runs If cable runs cannot be made without a splice all connections must be soldered Soldering should be done using a rosin flux to tie the connecting ends of sensor wires to ensure a positive and long lasting contact Ground the shield at the main control panel Connect the shield wire in the sensor terminal block labeled SHLD Tape all exposed shield wire at the sensor to insulate it from the enclosure All penetrations into a refrigerated room should be sealed to prevent condensate from forming in the conduit and dripping into the sensor enclosure Make drip loops for cables going into sensor housings When heated enclosures are used follow the special mounting instructions on the enclosure This End Up Mount sensor enclosures through the flange holes as shown in Figure 1 and always mount vertically 4 20 mA output Always use three conductor insulated stranded shielded copper cable Use only three conductor cable not two cables of two conductor wire Manning EC F9 NH3 Sensor 19186 ECF9NH3 RS 485 output Always use two conductor twisted pair insulated stranded shielded copper cable for the communication cable Use two conductor insulated stranded cable for sensor power With RS 485 the communication cabling of the network is daisy chained with multiple devices sensors relay modules etc communicating along the same pair of wires If used with the Manning AirAlert 96d contro
17. follow the procedure below Start With meter set to mVDC place leads on Test and Test Make sure signal is resting at 4 0 mA If sensor is not outputting 4 0 mA see Troubleshooting on Page 18 Press and hold button for 1 2 seconds Green LED shows slow blink during test procedure Slow blink 8 Apply span gas at 0 8 L min span gas must be in air not nitrogen or other carrier After span gas has been on sensor for a maximum of two minutes or achieving peak level adjust the span pot until the correct output is achieved see Figure 4 Note 1 If full scale calibration gas is used output should be 200 mV If required use Span potentiometer to adjust output to 200 mV 20 mA If mid range cal gas is being used refer to the formula in the following section Exit Press and hold button for one or two seconds Green LED left on continuous normal operation Continuous ON NOTE The Span Calibration Mode will automatically time out after 10 minutes Manning EC F9 NH3 Sensor 19186 ECF9NH3 Span Signal Formula Normal span gas is full scale In case it is not full scale use the following formula ASGC SFSV x16 4 Signal mA Where ASGC Available Span Gas Concentration SFSV Sensor Full Scale Concentration Value Example If 100 ppm ASGC gas is used to calibrate a 250 ppm SFSV sensor the signal would be as follows
18. formation for appropriate span adjustments if required Figure 4 LED Blink Sequence SLOW BLINK MEDIUM BLINK m m m m m FAST BLINK mmmmmmmmmmmmmmmmmmmmmm CONTINUOUS ON The Manning EC F9 NH has an internal pushbutton that is utilized for navigation of test functions and operating modes see Figure 5 Note 5 It also has a group of LEDs green red yellow see Figure 3 that blink in specific sequences to indicate sensor operation modes A summary of sensor operation modes and corresponding LED blink sequences is shown in Figure 6 The pushbutton must be pressed the correct number of times and at the correct rate When a multi press sequence must be performed the button must be pressed rapidly and evenly lifting one s finger completely from the actuator for each consecutive press Manning EC F9 NH3 Sensor 19186 ECF9NH3 3 Ope ration continued Green LED Solid ON all modes except Cal and 4 20 mA calibration Slow Blink Calibration mode Green ON Red Fast Blink Yellow Fast Blink 4 20 mA loop test failed the 22 mA high extremity Check output impedance and ensure itis between 10Q and 700Q referenced to ground In addition ensure power supply Red LED voltage is within specified operating range Solid ON Possible catastrophic failure on the circuit board The 4 20 mA signal will vary depending on the exact failur
19. hemical and infrared ammonia sensors by testing every 24 hours If the sensor dries up or is disconnected SensorCheck sends an indication that can be detected by a Manning Gas Monitor or PLC The red LED will indicate if a sensor starts to degrade electrically causing marginal operation requiring frequent attention and increased calibration checks Should the electrical viability test fail the unit outputs a 0 5 mA signal to indicate this fault condition B The SensorCheck electrical viability test is not however meant to replace adherence to the factory recommended calibration schedule SensorCheck is an internal electrical test that is not capable of verifying physical aspects such as blockage of the sensor membrane by dirt flour grease water paint etc Physical blockage is rare but does occasionally happen especially in many harsh processing environments NOTE SensorCheck is not intended to measure or indicate the chemical viability of a sensor operating in high or continuous concentration of NH Although SensorCheck is performed automatically every 24 hours at any time a manual sensor check can be performed To perform a manual SensorCheck follow the procedure below Start Press button see Figure 4 Note 5 three times within two second time limit test takes about 15 seconds During test green and yellow LED s are both continuous ON e Conos ON Continuous ON
20. l com About This Document World Wide Web The following Honeywell web sites may be of interest to Industry Solution customers Honeywell Organization WWW Address URL Corporate www honeywell com Honeywell Analytics www honeywellanalytics com Manning Gas Detection www manningsystems com Telephone Contact us by telephone at the numbers listed below Organization Phone Number United States Canada Honeywell Analytics Inc Lincolnshire IL Service Asia Pacific Honeywell Asia Pacific Inc Hong Kong Europe Honeywell PACE Brussels Belgium Latin America Honeywell International Inc Lincolnshire IL Sales Information Contact us at detectgas honeywell com Manning EC F9 NH3 Sensor 19186 ECF9NH3 1 800 538 0363 1 800 321 6320 852 23 31 9133 32 2 728 2711 1 847 955 8200 Symbol Definitions The following table lists those symbols used in this document to denote certain conditions Symbol Definition B 6 CAUTION A ATTENTION Identifies information that requires special consideration TIP Identifies advise or hints for the user often in terms of performing a task REFERENCE EXTERNAL Identifies an additional source of information outside of this bookset REFERENCE INTERNAL Identifies an additional source of information within this bookset indicates a situation which if not avoided may result in equipment or work data on the system being damag
21. libration gas every six months or after major exposure to a leak Calibration kits are available from Honeywell Analytics Response test once between calibrations i e at three month intervals Expose sensor to ammonia water solution to verify proper sensor response and alarm functions Test more frequently in highly critical applications The response test is not required if multiple electro chemical sensors are installed in the same room All tests and calibrations must be logged Sensor Life These electrochemical cells are extremely reliable but several things can cause the cell chemicals to become depleted including a period of time exposure to high temperatures exposure to varying concentrations of the target gas exposure to high moisture for extended periods without proper sensor enclosure CAUTION Although SensorCheck tests the sensor s electrical viability every 24 hours it is absolutely essential that these units be exercised with a gas sample on a regular and timely basis Typical sensor life in a refrigerated area will be three to four years Typical life in a non refrigerated area will be one and a half to two years Exposure to high levels of ammonia will shorten these times In addition to timely response checks a preventative maintenance program of periodic cell replacement should be implemented Manning EC F9 NH3 Sensor 19186 ECF9NH3 When the cell becomes depleted a replacement cell can
22. ller up to 32 devices can be wired in series per channel up to three channels Refer to e the controller manual for specific wiring details CAUTION When many sensors are connected to one set of power cables total current draw may exceed cable recommendations and or cause considerable line loss Contact Honeywell Analytics for recommendations on power cable sizing and additional power supplies Figure 2 4 20 mA Output Wiring Diagram eati dd g SENSOR Honeywell Note 1 Pushbutton TEST 40 to 200 MVDC TEST B ug Note 2 Mode Indicator LEDs Fake out resistor Remove factory installed 100 ohm fake out resistor White Connects to signal input of monitoring equipment Red From 24 VDC terminal Always respect of power supply minimum volt agerequirements at device Black From Ground terminal of power supply Outside bare wrap From SHLD terminal of controller 2 Instal lation continued Electrical Power 24 VDC regulated 30 mA With an ATMOS equipped enclosure the current draw is 400 mA max Respect minimum voltage requirements Outputs B ATTENTION The Manning EC F9 sensor is shipped with a 100 ohm 1 4 watt resistor in the green four position terminal block across the Signal and Ground terminals see Figure 3 This resistor is needed to fake out the 4 20 mA lo
23. nge Yellow LED Solid ON During Sensor Check Medium Double Blink During 4 20 mA 0 5 mA low test Fast Blink During 4 20 mA 22 mA high test and during failed 22 mA high test EN Oo 40 to 200 MVDC JP1 JP3 j PRIEEEE a A B SHLD GND 24 SIG LCD module connector A Risk of electrical shock mVDC Note 3 Sensor output Manning EC F9 NH3 Sensor 19186 ECF9NH3 12 3 Operation continued Figure 6 LED Sequence Indicator and Operation Summary Normal Run Mode During Span X Calibration Mode c During Simple Zero Test Manual SensorCheck Weak Cell Failed or Disconnected Cell Hardware failure During 4 20 mA 4 Loop Test 22 mA high Failed Loop Test 22 mA high During 4 20 mA 4 Loop Test 7 5 mA low Failed Signal Output GREEN LED left R RED LED center NOTE 1 SensorCheck automatically every 24 hours Manual test can be initiated NOTE 2 Unit will output 0 5 mA NOTE 3 Exits mode after 10 minutes or if pushbutton is pressed for one second NOTE 4 Occurs due to wiring problem or incorrect load value Initiated by button press Manning EC F9 NH3 Sensor 19186 ECF9NH3 3 Ope ration continued SensorCheck SensorCheck is a microprocessor based technology that monitors and predicts the electrical viability of its electroc
24. onsidered a high gas concentration not a fault condition Manning EC F9 NH3 Sensor 19186 ECF9NH3 NOTE for PLC applications The signal output load can range from O to 700 ohms where the maximum load resistor at a 24 VDC supply is 700 ohms and the maximum load resistor at a 10 VDC supply is 267 ohms Any load outside these values will indicate a fast flash on the red LED while in operation or this test mode during normal operation The error LED will blink fast at any time if the signal output cannot source the necessary current Figure 3 RS 485 Communication and Power Wiring Diagram EC F9 NH3 j am E SENSOR Honeywell JP1 olololo SHLD GND 24 SIG E mim EN Fake out resistor If 4 20 mA output is not used a 100 Ohm 1 4 Watt resistor must be installed as shown End of line resistor On the last sensor of the communication network a jumper must be installed Red From 24 VDC terminal of power supply White From A terminal of controller to A terminal of next device Black From B terminal of controller to B terminal of next device Black From Ground terminal of power supply Outside bare wrap From SHLD terminal of controller 3 Operation A Start Up Procedures Before applying power make a final check of all wiring for continuity shorts grounds etc It is usu
25. op if using the Modbus RTU output Only remove this resistor if using the 4 20 mA output 4 20 mA Circuit board mounted sensor provides a linear 4 20 mA output Monitoring equipment may have a maximum input impedance of 700 ohms RS 485 MODBUS RTU communication protocol Cable Recommendation 4 20 mA output Use 18 3 shielded cable Belden 8770 or equivalent Length of cable to sensor should be no greater than 1 500 feet Use only the existing punched holes for connections to the sensor RS 485 For communication cable use 24 AWG twisted pair shielded Belden 9841 or equal cable runs up to 2 000 feet Avoid T taps if possible Do not exceed 65 feet per T tap Do not exceed 130 feet total of all T taps per channel For power cable use 14 AWG Belden 5100UE or equal cable runs up to 1 000 feet for each power supply Larger power cable and or additional power supplies may be required for longer cable runs and or increased number of sensors Due to variables such as sensor current draw line loss and cable size contact Honeywell Analytics for help with power cable requirements CAUTION Follow cable recommendations Monitoring The Manning EC F9 NH Ammonia Sensor may be monitored by the Manning GM 10 GM 4 GM 1 GM JR AirAlert 96d or other appropriately configured system For 4 20 output monitoring equipment must be configured to indicate a fault if the signal is below 1 5 mA All signals over 20 mA must be c
26. s or other machinery Usually the best location is four or five feet above the floor in a location where the room exhaust fan will move air across the sensor from the potential leak source Manning EC F9 NH3 Sensor 19186 ECF9NH3 Ceiling Hung Evaporators When mounting Manninh EC sensors near evaporators mount the sensor no higher than two feet below the top of the evaporator coil DO NOT mount in high air flow 1 200 feet minute maximum NEVER mount the sensor on evaporators as vibration can damage the sensor Other Locations When mounting Manning EC sensors in locations such as roof top air units duct work attic spaces makeup air intakes etc contact Honeywell Analytics for application assistance and recommendations 2 Instal lation continued B Wiring Figure 2 presents 4 20 mA output wiring information for the Manning EC F9 NH sensor Figure 3 presents RS 485 communication wiring information for the Manning EC F9 NH sensor Electrical wiring must comply with all applicable codes Plant equipment that may be involved and operating conditions should be discussed with local operating personnel to determine if any special needs should be taken into account Almost all start up problems are due to improper wiring or monitor configuration Please follow these guidelines carefully CAUTION Do not pull sensor wiring with AC power cables This will cause electrical interference Be sure there are no breaks or splic
27. t has been subject to abuse misuse negligence or accident or if the Purchaser fails to perform any of the duties set forth in this limited warranty or if the Product has not been operated in accordance with instructions or if the Product serial number has been removed or altered Disclaimer of Unstated Warranties THE WARRANTY PRINTED ABOVE IS THE ONLY WARRANTY APPLICABLE TO THIS PURCHASE ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED Limitation of Liability IT IS UNDERSTOOD AND AGREED THAT HONEYWELL ANALYTIC S LIABILITY WHETHER IN CONTRACT IN TORT UNDER ANY WARRANTY IN NEGLIGENCE OR OTHERWISE SHALL NOT EXCEED THE AMOUNT OF THE PURCHASE PRICE PAID BY THE PURCHASER FOR THE PRODUCT AND UNDER NO CIRCUMSTANCES SHALL HONEYWELL ANALYTICS BE LIABLE FOR SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES THE PRICE STATED FOR THE PRODUCT IS A CONSIDERA TION LIMITING HONEYWELL ANALYTICS LIABILITY NO ACTION REGARDLESS OF FORM ARISING OUT OF THE TRANSACTIONS UNDER THIS WARRANTY MAY BE BROUGHT BY THE PURCHASER MORE THAN ONE YEAR AFTER THE CAUSE OF ACTIONS HAS OCCURRED 20
28. tain refrigeration applications ammonia vapors from an NH leak will remain at a low elevation In these cases leak detection will take longer if the sensor is mounted at high elevation and the indicated concentration will not be representative of personnel exposure Higher mounting locations can also complicate access to the sensor for required calibration and maintenance For more information on sensor mounting locations for different leak scenarios please contact Honeywell Analytics No matter where the sensor is mounted it must be easily accessible CAUTION General Mounting Considerations Must be easily accessible for calibration and maintenance Mount the sensor close to the potential leak source If personnel protection is the primary application mount in the breathing zone Protect sensor from water excessive humidity and wash down Take air movement and ventilation patterns into account Manning EC F9 NH3 Sensor 19186 ECF9NH3 If mounting sensor outdoors consider prevailing wind direction and proximity to the most likely source of leaks Protect the sensor from sun and rain as much as possible Never mount the sensor in CA controlled atmosphere rooms because normal atmospheric level of oxygen is required for operation For highly critical locations more than one sensor should be installed in each room To prevent electrical interference keep sensor and wire runs away from mercury
29. ties made by Honeywell Analytics with respect to this equipment will be voided if the equipment is not used and serviced in accordance with the instructions in this manual If in doubt about a procedure please contact Honeywell Analytics before proceeding Manning EC F9 NH3 Sensor 19186 ECF9NH3 1 System Description The Manning EC F9 NH Sensor is a three wire 4 20 mA sensor with optional RS 485 Modbus RTU communication designed for low level ammonia detection available in ranges of 0 100 ppm 0 250 ppm 0 500 ppm and 0 1 000 ppm The unit exhibits excellent accuracy and precision with negligible response to common interference gases and dramatic changes in relative humidity Reliable trip levels as low as 25 ppm can be expected with the 0 100 ppm sensor The unit exhibits extremely high reliability with no moving parts Monitoring equipment must be configured to indicate a fault if the signal is less than 1 5 mA All signals over 20 mA must be considered a high gas concentration Specifications Method Electrochemical diffusion Ranges 0 100 ppm standard 0 250 ppm 0 500 ppm 0 1 000 ppm requires High Range cell Output Isolated 4 20 mA 700 ohms max at 24 VDC Signal output reduces to 0 5 mA to indicate a fault condition RS 485 Protocol MODBUS RTU Accuracy 5 generally but limited by available calibration gas accuracy Repeatability 2 full scale Response Time T 10 seconds Tio 1
30. tion continued c Troubleshootin g Figure 8 Troubleshooting i Note 5 Pushbutton 34 A Risk of electrical shock TA 1 Note 1 Span adjustment Note 4 Sensor cable plugs 34 The LEDs will give visual indication of several sensor pan aaju in here Verify that SED and transmitter conditions is plugged in properly and cable is secured If the sensor output is 0 mA First verify 24 VDC at the sensor terminal block see Figure 8 Note 2 EC F9 NH3 Second check voltage between Test and Test see Figure 8 Note 3 Voltage should be in the range of 40 mV to 200 mV corresponding to an actual current flow of 4 mA to 20 mA If this voltage is O mV the signal has no path to ground Check monitoring equipment connections and configuration If the sensor output is 0 5 mA Indicates a fault condition has occurred Most common failed or disconnected sensor Hardware failure pre amp If the sensor output is erratic Make sure that the eecccee unit is in clean ammonia free air The unit has been factory zeroed and spanned If the zero has become unstable and there are no inter ference gases the most likely problem is a faulty or aged cell or a new cell with high gain left over from a E previous cell that was adjusted for aging If span calibration has not been performed with the new cell turn span pot down see Figure 7 Note 1 or counter
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