EC-Gold-NEM Gas Concentration Transmitter
Contents
1. 2 Switches 4 6 should be set as per the desired High Alarm ppm value For example to set the High Alarm value to 50 ppm set switch 4 On and switches 5 and 6 Off 3 Press the Cal pushbutton to lock in the value SETTING THE LOW ALARM The EC Gold will register a Low Alarm condition when the sensor detects a gas concentration equivalent or exceeding this value 1 While the Status LED is blinking green set the DIP switch as follows SET LOW ALARM FUNCTION 456 456 ON EEE code 0 1 Tele code 4 20 woe edel code 1 2 Ti code 5 25 or a ae see dk code 2 3 en code 6 35 SWs 4 6 set 1 of 8 different Low Alarm values ao code 3 10 gag code 7 50 2 Switches 4 6 should be set as per the desired Low Alarm ppm value For example to set the Low Alarm value to 35 ppm set switches 4 and 5 Off and switch 6 On 3 Press the Cal pushbutton to lock in the value st Model EC GOLD NEM User Manual Rev 1 0 3 3 5 SETTING THE CALIBRATION GAS CONCENTRATION This value tells the EC Gold what the value of gas concentration will be used during calibration 1 While the Status LED is blinking green set the DIP switch as follows SET CAL CONCENTRATION FUNCTION 456 456 ON RR code2. Check local building codes Model EC GOLD NEM User Manual Rev 1 0 2 2 ELECTRICAL INSTALLATION SIGNAL OUT RS 485 NETWORK 24VDC Use good installation practice Do not run high voltage cables in the same conduit as signal wires EC GOLD TRANSMITTER BOARD Figure 3 ELECTRICAL INSTALLATION EC GOLD ENMET EC GOLD 2 Wires shield For Networked applications the 2 wire RS 485 network CENTRAL ACCESS PANEL or connects to the Enmet Central Access Panel HAND HELD CALIBRATOR E eebe GND we 00 24VDC Ki J ee Cen RS 485 2 Wires shield Low Capacitance Cable Transmitter Transmitter Transmitter ALARM RELAYS Up to 96 EC Gold transmitters on the network Figure 4 ELECTRICAL INSTALLATION EC GOLD CAP Model EC GOLD NEM User Manual Rev 1 0 For Discrete Voltage Output DVO for alarm only applications the EC Gold Output is configured for DVO mode and connects to the corresponding Zone connection on the ISA 66RLU ENMET ISA 66RLU board or to the Gas Alert DVO connector For clarity only Zone5 is shown connected Sensors per zone Typically around 20 depending on wire sizes and lengths SGND connection on ISA 66RLU NOT made to EC GOLD transmitters Transmitter Transmitter Transmitter GAS ALERT 3 D O gt Transmitter The Gas Alert only accommodates a single zone Sensors per zone Typically around 20 depending on wires sizes and lengths SGND connection on Gas
3. 0 5 Tele code 4 35 j viel code 1 10 Ti code 5 50 alls code 2 20 n code 6 75 12 34567 o gt R de3 25 code 7 100 SWs 4 6 set 1 of 8 different Cal2 values me oo EEE 2 Switches 4 6 should be set as per the desired calibration gas ppm value For example to set the value to 100 ppm set switches 4 5 and 6 Off 3 Press the Cal pushbutton to lock in the value 3 3 6 SETTING THE NETWORK ADDRESS This value is only used in network applications Each EC Gold transmitter connected on a network must have a unique address Note the maximum address that can be entered via the DIP switches is 31 To set values up to 96 use the Arjay Enmet EC Gold hand held calibrator Network problems will result if 2 or more transmitters have identical addresses SET RS 485 ADDRESS FUNCTION a See SE Seet al RR 1 Mo OM 17 vun 25 malal ia 2 miali 10 Tell le 18 Benen 26 Cee 9 oe 27 E del fala d De 512 laf tale a TT iss 528 miui ini Gokai oi 2 ini iol 2 l i iol 2 Il 6 Tunni 1
4. LOW HIGH and HIGH HIGH Total span alarm signals and that ventilation fans audio alarms etc are working Press the Push to Test pushbutton to activate this feature See Figure 5 for the pushbutton location When the button is pressed and released the Status LED starts blinking green on and off every 2 seconds to indicate a test is underway This feature forces the sensor to to Low alarm plus 1ppm Press Button again to force High alarm plus 1ppm Press Button again to force HIGH HIGH alarm Total span plus 1 ppm Press Button again to get out of Push to Test feature If Push to Test feature is left ON it will time out after 30 minutes 16 Model EC GOLD NEM User Manual 6 0 TROUBLESHOOTING ERROR DESCRIPTION 1 No Output and all lights off 2 4 20mA output does not track the gas concentration 3 In Discrete Voltage Output mode the ISA 66RLU or Gas Alert connected to the EC Gold always shows Sensor Fault When pressing the Calibration pushbutton there is no calibration acknowledge i e the Status LED does not glow orange 17 Rev 1 0 WHAT TO DO Check the power to the unit The voltage should be 24VDC at the power connector with the positive and negative connected as shown on the connector label If the Power checks out call Arjay Service Make sure that DIP switch 7 is set to Off down position Make sure that the EC Gold output mode is set to Analog mode and not to Discrete Voltage Outp
5. SC TOXIC SENSOR te 20100050 1 0 MAINTENANCE AND CALIBRATION Your ARJAY ENMET gas detector is the state of the art in gas detection but like any other part of your ventilation system it requires periodic maintenance and calibration There are various sensor technologies that may be used in your Arjay gas monitor including solid state MOS Electrochemical Infrared and Pellister Pair Hot wire These have a normal operating life of 3 to 5 years under ambient conditions You should consider a preventive maintenance schedule whereby you test your system on a periodic basis to ensure its proper calibration and operation For solid state MOS sensors we recommend calibration every 3 to 4 months for a typical garage application For Electrochemical sensors we recommend calibration every 6 months for a typical garage application Pellister Pair we recommend every 3 to 4 months and Infrared we recommend every 6 months For applications that are more sensitive or where internal policies exist a higher frequency of calibration may be required This is a simple procedure which will indicate any problems with your system A test and calibration kit may be purchased from ARJAY ENGINEERING for this purpose Parts are also readily available from our facility MAINTENANCE CONTRACT Alternatively you may wish to consider a Maintenance Contract with ARJAY ENGINEERING whereby one of our service technicians comes to your site an
6. output OV ok Low Alarm 1 8V High Alarm 2 8V Sensor Fault 10V The DVO is a common signaling method any sensor in a zone triggers the corresponding Low High or Sensor Fault alarm at the Arjay Enmet ISA 66RLU or Gas Alert alarm panel In Discrete Voltage Output DVO mode the transmitter may be connected as part of a zone connected to an Arjay Enmet ISA 66RLU zone system In Analog mode the transmitter puts out a 4 20mA output proportional to the adjustable Span value This can be used as a standalone transmitter OR hooked up to the 4200 series panels Independent of the output type selected the transmitter may also be accessed by an Arjay Enmet Central Access Panel modbus protocol to form part of a networked gas monitoring system where up to 96 transmitters may be linked on a 2 wire RS485 connection The networked approach allows more complex control strategies based on the gas concentrations of a number of transmitters Model EC GOLD NEM User Manual Rev 1 0 EC GOLD NETWORK APPLICATION TYPICAL WIRE RUN FOR EACH ZONE MAXIMUM 50 SENSORS PER WIRE RUN OR 96 PER SYSTEM OW CAPACITANCE 22 MAWG RS 485 INDUSTRY CABLE SHIELDED 2 ARE BELDEN 9641 3105A OR EQUIVALENT Figure 1 TYPICAL APPLICATION DE ie Model EC GOLD NEM 1 3 SPECIFICATIONS OPERATION USER INTERFACE User Manual Rev 1 0 The EC Gold is a single channel gas concentration transmitter A variety of gases may be sensed when fitted wi
7. 4 n an 22 unn 2 fann Tunn oe e oe WT o WER io vu 2 1 While the Status LED is blinking green set the DIP switch as follows 2 Switches 2 6 should be set as per the desired number between 1 and 31 For example to set the address to 5 set switches 2 3 and 5 On and switches 4 and 6 Off 3 Press the Cal pushbutton to lock in the value 12 Model EC GOLD NEM User Manual Rev 1 0 3 3 7 EXITING SETUP MODE After all configuration is done the setup mode must be exited for normal operation Also calibration cannot be done via the Calibration pushbutton while in setup mode To exit setup mode i e Status LED is blinking green set the DIP switches 1 6 switch 7 is not important to the ON position and press the Calibration pushbutton The Status LED should remain steady green iABBBRBE 6 7 IMPORTANT after exiting the setup mode do not leave the DIP switches 1 6 in the ON position as shown above This will cause entry to Setup mode if calibration is attempted i e if Calibration pushbutton is pressed Set all switches 1 6 in the off position FOR EXAMPLE LEAVE THE DIP SWITCH IN THE FOLLOWING POSITION FOR NORMAL OPERATION TYPICAL SETTING FOR NORMAL OPERATION ON 1 2 3 4 5 6 THIS COMPLETES THE STARTUP AND CONFIGURATION et Model EC GOLD NEM User Manual Rev 1 0 4 0 CALIBRATION 4 1 CALIBRATION NOTES The EC Gold may be calibrated using either a Sin
8. Alert NOT made to EC GOLD transmitters Figure 5 ELECTRICAL INSTALLATION 66RLU GAS ALERT All user connections are via mating plug receptacle connectors to make installation and service easier CAUTION THE UNIT HOUSES SENSITIVE ELECTRONIC COMPONENTS AND SHOULD BE HANDLED WITH CARE IF PUNCHING OR DRILLING THROUGH THE ENCLOSURE WALLS IT IS NECESSARY MAKE SURE THAT THE INTERNAL ELECTRONIC MODULES ARE SHIELDED FROM DEBRIS ESPECIALLY METAL PARTICLES PLEASE MAKE SURE THAT THE CONNECTIONS HAVE THE POLARITY AS INDICATED OR THE CONTROLLER MAY BE DAMAGED USE GOOD INSTALLATION PRACTICE DO NOT RUN HIGH VOLTAGE CABLE IN THE SAME CONDUIT AS SIGNAL WIRES Model EC GOLD NEM User Manual Rev 1 0 3 0 STARTUP AND CONFIGURATION SENSOR BOARD RS 485 gt d Q Test Points Gnd d DVOEx vont hHigh Alarm Low Alarm 6 Status 2 color LOSTECL IDOA pu LM Ara HOLIMS did NOILISOd Z LaL S E FR LR GR Wie Ej LI WW WW WW WW i I The DIP switch and the Calibration pushbutton are used to configure calibrate the unit ZY woynqusnd SaL 9 ysnd Gas Sensor CO sensor shown for example F g uoyngysnd UOHEIQIED a 9 O YSN uoynqusnd STATUS LED COLOR MEANING Green blinking 3 times New calibration accepted Green continuously Instrument ok no faults Will remain green for High or Low Alarms Green blinking ON and OFF In Configuration entry mode O
9. CTRICAL INSTALLATION 66RLU GAS ALERT ssesessseneeseeseeneeesenenns 8 Figure USER INTERFACE OVERVIEW EE 9 Fig r 7 CALIBRA FON eocena e aa uae acter edsadenhetad iad a AAA 14 Rev 1 0 Model EC GOLD NEM User Manual Rev 1 0 1 0 INSTRUMENT OVERVIEW 1 1 FEATURES e Single gas transmitter for a large variety of gas types e Carbon Monoxide sensor has expected life of 7 years min 3 year guarantee e Other toxic sensors have expected life of 2 years 1 year guarantee e Output may be user selectable for analog 4 20mA 2 10V or Arjay s Discrete Voltage Output DVO e Convenient pushbutton calibration e Push to test feature e User selectable for Single or Dual Point calibration e High Low and System Fault indication e User selectable High and Low Alarm levels e Modbus protocol via RS 485 for access by Arjay Enmet Central Access Panel or compatible system e User specified custom features may be added by contacting Arjay Engineering Ltd 1 2 DESCRIPTION The EC Gold transmitter may be used to sense a large variety of gases including CO NOz Ammonia Chlorine and Hydrogen Sulfide H2S and Oxygen The EC GOLD sensor offers a Push To Test feature which allows the user to check his her alarm points to verify if the fans are working without having to gas the sensor The analog output may be field configured either as a 4 20mA 2 10V output or as an Arjay Enmet Discrete Voltage Output DVO The DVO is a 4 level
10. EC Gold NEM Gas Concentration Transmitter User Manual Technical Support Continental North America Toll Free 1 800 387 9487 Ph 1 905 829 2418 Fx 1 905 829 4701 A Product of Arjay Engineering Ltd Oakville Ontario Canada ARJAY ENMET www ArjayEng com www EnmetGasDetection com ie Toxic Gas Oxygen Transmitter ARJAY ENGINEERING Economical gas detection for commercial residential and light industrial applications The EC Gold is part of the Arjay series of gas detection instruments This employs electro chemical sensors to target toxic gas or oxygen concentrations in ambient air The unique design and flexible interface allows this transmitter to be used with any of the Arjay controllers or directly with your own site automation or control system e multiple outputs and communications e robust metal housing e wide variety of sensor options The on board sensor continuously monitors the ambient air by natural diffusion The sensor responds proportionally to the gas concentration in the air A signal is sent to the control panel or system for ventilation or alarms Calibration port Metal sensor guard K Manual test button External calibration button Standard Features e Plug in wiring terminal block for quick installation and maintenance e 1 2 and 3 4 knockouts top bottom and back for easy installation e LED alarm status indication including flashing fault alarm e Extern
11. NT CALIBRATION The EC Gold must be configured for Single Point calibration factory default and the calibration gas concentration value must be known The unit comes factory set for Single Point Calibration and 100 ppm CO or 10 ppm NO2 If either setting is in doubt then see section 3 to set these values 1 Determine what Calibration gas concentration the EC Gold is expecting This value is listed on the packing slip and may be recorded in the back of the user manual in the CONTROLLER SETTINGS sheet for future reference This value can be changed at any time as described in SETTING THE CALIBRATION GAS CONCENTRATION section described earlier The gas sensor is mounted directly behind the Calibration Port in the middle of the front plate of the EC Gold housing See Fig 7 Insert the Quick Disconnect tube into the EC Gold s Calibration Port Start gassing the sensor by opening the valve on the canister The flow rate is preset to 0 5 Lom or 1 SCFH Standard Cubic Foot per Hour Wait about 90 seconds Press and hold the calibration pushbutton via the access hole see Fig 6 until the Status LED glows orange acknowledging the calibration request Release the pushbutton If the Status LED blinks green 3 times after the Calibration pushbutton is released then the Calibration has been successfully completed If the calibration was successful the Status LED will return to steady green If the status LED blinks dark red 3 times a
12. User Manual TABLE OF CONTENTS 1 0 INSTRUMENT OVE IR WB EE 3 1 1 FEATURE eebe 3 1 2 DESORIPTION ME 3 1 3 EE EE 5 2 0 SEH 6 2 1 MECHANICAL INSTALLAT TION cc cccccecccceeceeeeeeeeeeeseeeeeeeeessaeeeeaes 6 2 2 SE EE taciulctiuaets Oita 7 3 0 STARTUP AND CONFIGURATION ececeecciteiecws as cetera aaa as arts 9 3 1 NOTES ON THE USER INTERFACE OP IONS cc cccceeeeeeeeeeees 9 3 2 RE RE 10 3 3 USING THE DIP SWITCH FOR SETUP 2 0 ccccc cnn cine 10 339 1 ENTERING SEMUP RE 10 3 3 2 SETTING CONEIGURATION cc cccecccceceeeeesseeeeeseeeeeeaees 10 3 3 3 SETTING THE HIGH ALARM sstrceincstwentiencteencaseneeies 11 3 3 4 SETTING THE LOW LEE re uke 11 3 3 5 SETTING THE CALIBRATION GAS CONCENTRATION 12 3 3 6 SETTING THE NETWORK ADDRESS cc ccecceeeeeee eens 12 S047 EAVEING SETUP MODE eegene e 13 4 0 CALIBRA TION ME 14 4 1 E ENNEN Eeneeee 14 4 2 SINGLE POINT CALIBRATION annaannonnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnennnnnnennnene 15 4 3 DUAL POINT CALIBRAT TION oannnannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnrrnnnnnnrrneennne 15 5 0 PUSH OWES I REA TURE ee EE EE 16 6 0 TROUBLESHOOTING EE 17 7 0 CONTROLLER SETTINGS SHEET RE 18 TABLE OF FIGURES Figure dT PIGAIVAP RLIGAWIO EE 4 Figure 2 MECHANICAL INSTALLATION cccccccccccceceseeeeeeeceseeseaeeeseeeesageessueeesaees 6 Figure 3 ELECTRICAL INSTALLATION EC GOLD ccc cccccceecceeeeeseeseeaeeeesaeees 7 Figure 4 ELECTRICAL INSTALLATION EC GOLD CA 7 Figure 5 ELE
13. al calibration port for easy application of Test Gas used with onboard CO sensor e Protective aluminum housing with electronics filter screen e External push button for calibration the user is not required to open the unit to calibrate e Shielded sensor port for plug in sensors e manual Pust To Test to confirm interlock of fans and alarms Technical Specifications Operating Temperature 20C to 40C indoor use Humidity 90 non condensing Approvals to CSA UL Enclosure Nema Type 1 IP40 197mm x 76mm x 76mm Mounting Surface mount 14 24 vdc 1 amp 4 20 mA 700 ohms RS 485 Modbus Accuracy 2 of reading Power Input Analog Output Communication Typical Gases CO carbon monoxide 0 500 ppm factory shipped 0 200 ppm NO nitrogen dioxide 0 20 ppm NH3 ammonia 0 100 ppm H S hydrogen sulphide 0 100 ppm factory shipped 0 10 ppm Cl chlorine 0 10 ppm O oxygen 0 30 combustibles refrigerants SL A gt ea JAY ENGINEERING 24 vdc input 4 20 mA RS 485 Modbus output plug in CO sensor 3 year guarantee ISO 9001 2008 Quality Management Systems Syst me de Qualit www ca sgs com CANADA LTD Enmet Canada Ltd is the gas detection division of Arjay Engineering Ltd 2851 Brighton Road Oakville Ontario Canada L6H 6C9 www SkitterNet com telephone 1 905 829 2418 N America toll free 1 800 387 9487 fax 1 905 829 4701 EC11b Model EC GOLD NEM
14. cale Range the accuracy is limited by the sensors the electronic accuracy is better than 1 15VDC 24VDC 0 100A max MECHANICAL SPECIFICATIONS Enclosure Dimensions Weight Nema 1 wall mount 7 75 197mm H x 3 76mm W x 3 76mm D 0 3 kg ENVIRONMENTAL SPECIFICATIONS Operating Temp Relative Humidity 20 C to 55 C 90 max with no condensation Model EC GOLD NEM User Manual Rev 1 0 2 0 INSTALLATION 2 1 MECHANICAL INSTALLATION BASE Dual 3 4 amp 1 2 diam knock outs for top entry conduit or cable FRONT COVER LEI O i ee Dual 3 4 amp 1 2 diam LL ig knock outs for top entry See conduit or cable TP 1 Black Ground TP 2 Red External Output on d S Daisy Chai gt ie aisy Chain W EC GOLD TP 3 Red Internal Output from EC TRANSMITTER E BOARD Gold Behind Diode Es e g IT Gla e V CALIBRATION Push Button Ta ET PUSH TO TEST Button Toxic Sensor Calibration Gas Port Mounting Holes 2 25 REES 3 00 i BASE FRONT COVER Figure 2 MECHANICAL INSTALLATION Locate the EC Gold on a vertical surface away from drafts open doors or windows condensation or dripping moisture The vertical placement above the floor depends on the gas being monitored For CO the unit should be located within the breathing zone about 900mm 3 to 1800mm 6 feet above the finished floor For other gases refer to an Arjay Engineering representative
15. configured for mA out the transmitter does not become a 2 wire Loop Powered transmitter The mA output is referenced to the Ground terminal Terminal 2 see Electrical installation for terminal number details For Analog output switch 6 should be On and switch 7 should either be Off for 4 20mA output or On for voltage output 2V 10V Oe Model EC GOLD NEM User Manual Rev 1 0 3 3 3 3 3 4 For RLU Discrete Voltage output switch 6 should be in the Off position and switch 7 should be in the On position Note Switch 7 acts immediately and does not require configuration mode to be entered or the Cal pushbutton to be pressed to take effect _It can be changed at any time After switches 4 6 are set as required press the Cal pushbutton to lock in the values If finished go to exit mode section 3 3 7 or procced with setting alarm values SETTING THE HIGH ALARM The EC Gold will register a High Alarm condition when the sensor detects a gas concentration equivalent or exceeding this value 1 While the Status LED is blinking green set the DIP switch as follows SET HIGH ALARM FUNCTION res Fee ON EEE code0 5 w i code 4 75 Wl viel code 1 10 aie code 5 100 CS ae Be code 2 20 gg code 6 150 SWs 4 6 set 1 of 8 different High Alarm values Inn code 3 50 mmm code 7 200
16. d checks out the unit for proper calibration and operation on a regularly scheduled basis This is done on a flat per annum fee All parts are extra Typical target gases are included however exotic or specialty gases may have a surcharge If you wish us to quote a Maintenance Contract fill in the section below and return to our office COMPANY ADDRESS CONTACT PERSON EMAIL MODEL AND SERIAL reppin Fax to address below or e mail to arjay arjayeng com Telephone 1 905 829 2418 ARJAY ENGINEERING LTD Ze sosoo2008 Telefax 1 905 829 4701 2851 Brighton Rd Quality Management Systems N America Toll 800 387 9487 Systeme de Qualite www ca sgs com Internet www arjayEng com Oakville Ontario Canada L6H 6C9 SS ee s es E Mail arjay arjayEng com ARJAY ARJAY ENGINEERING LTD GUARANTEE We hereby guarantee this instrument to be free from defects in workmanship and materials and if found defective in workmanship or materials upon being returned to our factory prepaid within one year from date of purchase it will be repaired or replaced at factory without charge However if upon being returned and after inspection there is evidence that the instrument has been subjected to tampering careless handling improper or faulty application or installation the above guarantee shall not be applicable and we Shall have the right in any such case to make a charge to cover the cost of repairs servicin
17. ds to change See section 4 0 for calibration 3 3 1 ENTERING SETUP MODE Set DIP switches 1 6 switch 7 is not important here to the ON position and press the Calibration pushbutton The Status LED starts to blink Green indicating the system is now ready to accept configuration changes iABBBRBE 3 3 2 SETTING CONFIGURATION 1 While the Status LED is blinking green set the DIP switch as follows MODE SETTINGS ON F Single point Cal Biala 7 s gt Poin Wei 12 3456 oH Continuous elle mode For mA output Sw7 Off V out Sw7 On DVO Discrete Voltage Output mode This requires Sw7 to be set for voltage output On 2 Single Point Dual Point Calibration The default position is Single Point Calibration A Single Point calibration assumes the instrument has already been zeroed successfully This mode saves calibration time The Dual Point calibration is selected if the sensor has not been successfully zeroed or if a new sensor is installed in the field Set switch 5 On for Single Point and Off for Dual Point calibration 3 Output Mode In Analog output mode the output is proportional to the gas concentration In Discrete Voltage Output mode the output is set to one of 4 step values based on alarms and is compatible with Arjay s ISA 66RLU Gas Alert systems Notes e Wire connections to the OUT terminal are dependent on the type of Output mode selected e When
18. fter the Calibration pushbutton is released then there was a calibration error such as not enough change for the gas concentration used For unsuccessful calibrations the original calibration values remain unchanged For example if the EC Gold calibration gas is set as 100 ppm via the DIP switches this is described earlier but the actual gas used is only 20 ppm then the calculated sensitivity will be out of allowed limits and will cause a calibration error The Status LED will blink dark red 3 times but the new erroneous calibration values will be discarded and the Status LED will return to steady green If the Status LED does not glow orange and continuously blinks green after the Calibration pushbutton is released then the DIP switches 1 6 are probably set to Enter Setup Mode i e all of them are set to ON If this is the case shut off the calibration gas and press the Calibration pushbutton to exit the Setup Mode then set DIP switch 1 6 to OFF 4 3 DUAL POINT CALIBRATION This procedure is typically done at the factory The Dual Point calibration not only trims the sensitivity like a Single Point calibration but also zeroes the reading i e 0 ppm in clean air Dual point calibration in the field requires a handheld calibrator THIS COMPLETES THE CALIBRATION PROCEDURE ER Model EC GOLD NEM User Manual Rev 1 0 5 0 PUSH TO TEST FEATURE The Push to Test feature allows the customer to verifty if the controller is receiving a
19. g and transportation expense The undersigned assumes and shall have no liability for consequential damages resulting from the use or misuse of the instrument The foregoing guarantee is in lieu of all other guarantees or warranties expressed or implied and all other obligations or liabilities contractual or otherwise either to the original purchaser of said instrument or to any other person whomever BY ARJAY ENGINEERING LTD For service call ARJAY Engineering Ltd directly Canada 905 829 2418 North American Toll Free 1 800 387 9487 Fax 905 829 4701 Internet www arjayeng com E mail arjay arjayeng com Telephone 1 905 829 2418 ARJAY ENGINEERING LTD e 80 90012008 3 Telefax 1 905 829 4701 2851 Brighton Rd o Quai Management systems N America Toll 800 387 9487 www ca sgs com Internet www arjayEng com Oakville Ontario Canada L6H 6C9 A E Mail arjay arjayEng com
20. gle Point Preferred Method or Dual Point calibration procedure The factory setting is for a single point calibration i e calibration can be performed without removing the cover using calibration port and access hole The Calibration pushbutton may be accessed using a screwdriver or other fine tool See Figure 6 or 7 for the location of the access hole For single point calibration the factory setting requires a 100ppm CO concentration gas or 10ppm NOz Consult factory for other toxic gases A full Dual Point calibration is always performed at the factory and involves zeroing the sensor in clean air then calibrating at a preset gas concentration The Single Point calibration is typically used in the field since it is more convenient Also it does not require clean air as one of the calibration points since clean air cannot be guaranteed in all installations A Single Point calibration assumes the unit has already been zeroed This is always true for new units from the factory CALIBRATION Alarm LED s Window FUUUUUUU EC Gold Calibration Port Ln hohanonn Flowrate regulator preset for 0 5Lpm O Male Quick Disconnect rd DUT tube inserted into p EC Gold Calibration Port PPS CO A 6 feet of 5 16 O D x 3 16 I D Flow ON OFF flexible clear tubing knob C Calibration Push button access hole CAL GAS CANISTER Figure 7 CALIBRATION 14 Model EC GOLD NEM User Manual Rev 1 0 4 2 SINGLE POI
21. range Red amp Green both ON Calibration request acknowledge while cal pushbutton pressed Red blinking 3 times Calibration error or user error Red Steady ON Instrument failure Sensor Fault condition Figure 6 USER INTERFACE OVERVIEW 3 1 NOTES ON THE USER INTERFACE OPTIONS The EC Gold is factory set for the requested setting at time of order If changes are required then the EC Gold may be configured using either of 2 methods 1 Using the integral DIP switch The EC Gold front cover must be removed to access the DIP switch 2 Using Arjay s optional 4000 CAL hand held calibrator The calibrator communicates with the EC Gold via the RS 485 connection using the modbus protocol The calibrator s LCD and keypad offer a more convenient method of setting up and calibrating the EC Gold units See the 4000 CAL hand held calibrator manual for details if using it instead Model EC GOLD NEM User Manual Rev 1 0 3 2 STARTUP Power up the unit The status LED should be green The High and Low alarm LED s should go off in less than a minute Note all of the following settings are preset at the factory as per the customer requirements The settings are listed on the packing slip and may be entered in the controller setting of this manual for future reference The following procedures should only be followed if changes are required 3 3 USING THE DIP SWITCH FOR SETUP This DIP switch is only required if factory setup nee
22. th the appropriate sensor The output may be field selected to be one of two types Analog 4 20mA 2 10V or Arjay s RLU Discrete Voltage Output which is used in zoned alarm systems In addition an RS 485 interface is available so that the EC Gold can be accessed by an Arjay Enmet network master Central Access Panel or CAP or user modbus compatible system Calibration and setup DIP switches pushbutton and LED status lights Push to Test Network INPUTS Integral Sensors OUTPUTS mA output DC Voltage output mA Voltage output RLU DVO output Alarms Alarm Indication PERFORMANCE Accuracy POWER Pushbutton used to check alarm points without gasing sensors RS 485 modbus protocol Used either with the ARJAY ENMET CAP unit or via third party modbus compatible systems Single sensor Electrochemical type for gases including CO H2S NH3 NO NO2 and Cl2 and O2 When configured for Analog output 4 20mA into 650 ohms max When configured for Voltage output 2 10V proportional to calibrated range 0 1 resolution non isolated When configured for RLU Discrete Voltage Output mode OV No Alarm 1 8V Low Alarm 2 8V High Alarm 2 8V HI HI Alarm 3 alarms High Low and Sensor Fault High Red Low Yellow and a 2 color LED for Sensor Fault Red and No Alarms Green The 2 color LED is also used to flash calibration errors Red for 2 seconds after an unsuccessful calibration 2 of Full S
23. tput mode the output is compatible with Arjay s ISA 66RLU Gas Alert Alarm system VOLTAGE If Analog output mode is selected then the type of output As per order CURRENT OUTPUT may be further selected to be current type 4 20mA or voltage 2V 10V Note if the Output type is RLU discrete voltage then this setting MUST be voltage type CALIBRATION Field selectable for either Dual Point or Single Point Single Point TYPE The Dual Point type zero s and spans the instrument The Single Point type assumes the zero has been successfully done and only spans the instrument HIGH ALARM The value in ppm at or above which a High Alarm m per e condition is entered LOW ALARM The value in ppm at or above which a Low Alarm eg per condition is entered CALIBRATION GAS The calibration gas value in ppm This value is assumed As per order CONCENTRATION by the EC Gold during calibration Note for Single Point calibrations this is the only gas used For Dual Point calibrations the first gas is always assumed to be clean air 0 ppm SPAN VALUE This value is only pertinent if Analog Output has been As per order selected It is the full scale value in PPM at which concentration the EC Gold output is at its maximum 20mA current type or 10V voltage type Note this value cannot be set via the integral DIP switches It can only be set via the EC Gold hand held calibrator or EC Gold Central Access Panel NETWORK Only req
24. uired for network applications where the RS As per order ADDRESS 485 bus is used The Address is used by the EC Gold calibrator or by the EC Gold Central Access Panel to access each EC Gold transmitter on a network Each EC Gold on a network must have a unique address number from 0 96 Note the maximum address value which can be set by the integral DIP switches is 31 To set values higher than this use the EC Gold hand held calibrator 18 Front Cover Dual 3 4 amp 1 2 diam 6 00 5 25 knock outs for top entry conduit or cable Dual 3 4 amp 1 2 diam O EC GOLD BOARD knock outs for top entry conduit or cable TP 1 Black Ground TP 2 Red External Output on Daisy Chain TP 3 Red Internal Output from EC Gold Behind Diode T Q Calibration Push Button a 2 29 3 00 FRONT VIEW without COVER PUSH TO TEST Button Toxic Sensor Calibration Gas Port Mounting Holes 4 Places 3 00 C C D lt a CC a D o E C SC 7 75 gt oo CE D CC aa D E C FRONT VIEW with COVER REV DATE DESCRIPTION CHK D APP D REVISIONS ARJAY PROJECT STI ENGINEERING SSS ENGINEERING LIMITE D sea FH 112101109 EC GOLD NEM INSTALLATION
25. ut mode See SETTING CONFIGURATION section for details Calibration may be required See the calibration section for details Call Arjay Enmet Service for Help if none of the above fix the problem Make sure that DIP switch 7 is set to the On up position Make sure that the EC Gold output mode is set to Discrete Voltage Output mode and not to Analog Make sure the calibration pushbutton is pressed for at least 2 seconds Make sure that the DIP switches 1 6 are not all On Up This will cause the Setup mode to be entered when the pushbutton is pressed If the Status LED is flashing green first press the calibration pushbutton to exit the Setup mode then set switch 6 to the Off down position Then proceed with the calibration procedure Model EC GOLD NEM User Manual Rev 1 0 7 0 CONTROLLER SETTINGS SHEET The factory settings column below lists the typical default settings The user may change these values at any time either by the integral DIP switches or via the EC Gold hand held calibrator If changed please fill in the USER SETTING column for future reference PARAMETER DESCRIPTION FACTORY USER SETTING SETTING OUTPUT MODE There are 2 main output modes which may be field As per order selected Analog the output is proportional to the gas concentration The output type may be further selected to be mA type 4 20mA or voltage type 2V 10V see Voltage Current Output setting Discrete Voltage Ou
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