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Manual - Arjay Engineering

1. MODEL 2852 IFA Liquid Interface Alarm Switch 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 www ArjayEng com MODEL HARDWARE NO 5 1 SOFTWARE NO SERIAL NO 2852 IFA Liquid Interface Alarm ENGINEERING Reliable interface monitoring for alarm between two liquids Over 40 years of capacitance experience stands behind the 2852 IFA Liquid Interface Alarm The sensing probe continuously monitors the liquid in a vessel and will alarm when the interface of a different dielectric liquid crosses the active probe Typical applications include oil water interface in pipes and separators water accumulation in fuel tank bottoms and product phase changes in process piping streams capacitance technology does not foul or require cleaning no moving parts remote alarm unit mounts away from the process for safety and ease of control wiring The 2852 IFA sensing probe monitors the capacitance field around the probe The probe is calibrated to one of the liquids As the interface of the second product crosses over the probe the probe capacitance changes This change is used to activate the relays for alarm and control 3 4 npt 316SS process connection Teflon sensing probe optional alarm light and or buzzer Remote Elect
2. see 12 3 2 1 Menu Description sesssssssseesee emen 12 3 2 2 Menu Elow Chant nete tt eet 12 3 2 3 Data Entry e eine RD Der eM 13 3 3 2852 Controller Gallawa 13 3 3 1 Site alianika 13 4 0 SETUP and ALARMS tei afuit i ar LOI Latiae taedet 15 4 1 2852 Controller Setup eee 15 4 2 2852 Controller Alarrris idt eee ettet e Hi ue MD cec e atris 15 4 3 2852 Controller Network ssssssssssssseeeeenenmeen eene 16 4 3 1 Modbus Configuration sse eee 16 4 3 2 2800 Series Modbus Register 17 5 0 MAINTENANCE etel rto ere eei t te e ee eon 18 6 0 TROUBLESHOOTING se epe Perd RII Be pep e M de 19 7 0 inet miden distene nitus ie A 20 TABLE OF FIGURES Figure 1 Typical Tank Application me 4 Figure 2 Typical Pipe Application Overview ssssseeeemI 4 Figure Probe Installation wA ka waa nennen nennen 8 Figure 4 Electrical Installation Overview sseee eem 9 Model 2852 IFA User Manual Rev 22 1 0 INSTRUMENT OVERVIEW The Arjay Model 2852 IFA Liquid Interface Alarm provides a means for detecting the change from one liquid to another liquid of
3. 2852 IFA User Manual Rev 22 1 3 Specifications Power Input 12 VDC 15 1096 or 24 VDC 15 1096 250mA maximum 100VAC 240VAC 10 50 60 Hz 150mA maximum Note DC input models must be supplied by Limited Energy power source Limited Energy means compliance with one of the following requirements Class 2 circuit according to Canadian Electrical Code Part C22 1 Class 2 circuit according to National Electrical Code NFPA 70 Limited Power Supply LPS according to IEC 60950 1 Limited energy circuit according to IEC 61010 1 Connections to mains supply Permanent for AC DC model User Interface Display amp Keypad Two line LCD with Alarm status display select menu or enter values by keypad display is internal to housing and used for set up and diagnostics only Communication Interface Modbus RS485 Analog Relay Outputs mA Signal Output 4 mA during Normal and 20 mA during an alarm condition 900 Ohms max OR 450 Ohms max 12VDC Power Relay Output 2 SPDT relay dry Contact 5A 250 VAC Resistive and N C Contact 3A 250VAC Resistive selectable failsafe or non failsafe selectable high or low acting alarm programmable time delay 0 600 seconds Instrument Performance Measuring Range 5000 pF most applications are 100pF to 1000pF Accuracy 0 2 of setpoint Resolution 0 05 of setpoint via network
4. Press lt gt Press lt gt Press lt SELECT gt Press lt gt ress Press SELECT Press SELECT t F Cal Pt X xp SENSTVTY X xpF x xHz 10 k Ls mi Press lt gt Press lt SELECT gt Press lt SELECT gt Press lt Y gt lt gt Press lt gt ALRM CAL Press lt gt Press lt W gt Above SP Press lt gt Press lt gt n Failsafe NET ID Yes 1 7N Press lt gt Press lt Y gt Press lt A gt FILTER Press lt Y gt 0 TW Press SELECT Press lt gt Press lt Y gt SETUP Press lt gt Exit Press lt gt Press SELECT Note 1 Data Entry Press lt gt lt w gt key to increase decrease the digital value Press SELECT key to move the cursor 21 Model 2852 IFA User Manual Rev 22 CHANGE MENU Sel Mode Change Press SELECT Password 2000 0000 for Entry password Press SELECT Press SELECT Press gt Press lt gt Press lt gt Press lt A gt SELECT PressW gt SELECT Press lt gt SELECT P press eV SELECT Press 4 gt SELEGT Cal Alarms Diags Setup Exit E Press lt gt Press SELECT Press ve Press lt SELECT gt Press lt SELECT gt Press eV Dela X xpF Low pF press lt W HI pF Press SELECT Press SELECT Press SELECT Press lt SELECT gt 4 Delay See Press lt gt SENSTVTY See Cal Pt XXX
5. Note 1 Press lt Y gt 1 0 Note 1 Press SELECT Press SELECT Press Bind Action DEFAULTS Cal Pt Alrm vSP Yes nfirm Go Press lt SELECT gt Press lt SELECT gt Action See DEFAULTS see Press lt SELECT gt Alrm vSP Note 2 Yes Note 3 Press lt gt Press lt Y gt Press lt SELECT gt Press lt SELECT gt Failsafe NET ID Press lt SELECT gt Yes 1 FILTER See Press Press SELECT 00 Note 1 Failsafe See See NET ID Note 3 Note 1 001 Press SELECT v Exit Press lt gt Press lt SELECT gt Press lt gt Press lt gt Press SELECT Press lt Y gt Press lt SELECT gt Note 1 Data Entry Press lt gt lt W gt key to increase decrease the digital value Press SELECT key to move the cursor Note 2 High amp Low Selection Press lt gt lt w gt key to toggle between v low amp v high action Note 3 Yes amp No Selection Press lt gt lt w gt key to toggle between Yes amp No action 22
6. SETUP AND ALARMS 4 1 2852 Controller Setup The 2852 controller has the following Setup parameters 1 Sensitivity 0 1 pF to 10pF range The sensitivity determines the amount of pF change required to cause an alarm The factory default setting is 3 0 pF Increasing the pF value will increase the amount of liquid change required to cause an alarm Since different liquids and the conditions of the phase or interface can affect the pF change a direct pF to alarm point relationship cannot be factory determined If this is changed in the field it should be tested to confirm an alarm Hi pF to Low pF and Low pF to Hi pF This setting advises the controller if the unit is to alarm on an increase in capacitance such as fuel to water or a decrease in capacitance such as water to oil The factory default is HI to LOW pF Defaults Factory settings are pre configured into the unit based on the most typical set up required for this application This provides for a quick and easy calibration at site but can be changed for special applications If the setup has been changed this will change back to the factory defaults Net ID The ID number is used only for network applications To communicate on a network each controller must have a unique ID number The factory default ID number is 1 Important If multiple units on a network have the same address network errors will result Filter Data filtering is used to smooth data from a sudden
7. a different dielectric such as water to oil The capacitance sensing probe can be submersed in any liquid type and in any vessel style such as a pipe tank and pit The Arjay probe is an active capacitance sensor that is tuned to the fluid dielectric As a liquid interface or fluid phase changes to a differing dielectric the probe capacitance changes The remote mounted Arjay 2852 controller monitors the capacitance change of the probe and activates relay contacts for use with alarms pumps valves etc interface applications such as monitoring for water condensate in fuel tanks an alarm will occur when the interface crosses approximately 2mm of active probe In phase and emulsion change applications such as water to oil in a pipe approximately 5 concentration change will activate the alarm The Yo change required can be affected by the emulsion the fluid types the piping etc The complete 2852 IFA system consists of the probe the PMC card and the 2852 controller The standard probe is a Teflon coated stainless steel rod with stainless steel fitting Probes can be be inserted vertically horizontally or angled into the vessel For top mount insertions an inactive sheath on the air exposed portion of the probe is required The active portion of the probe must be submerged in liquid at all times If exposed to air an nuisance alarm may occur The PMC Pulse Module Circuit card is installed at the probe and translates the capacitance
8. display 0 002 of Full Scale capacitance via network display Calibration Single point Auto calibration Environmental Operating conditions Continuous Operating Temperature 20 C to 55 controller 60 C to 55 C PMC 60 C to 260 C probe Relative humidity 0 to 95 non condensing Altitude lt 2000 Installation Category II Pollution Degree 2 Equipment mobility Fixed Model 2852 IFA User Manual Rev 22 Mechanical Specification Refer to Dimensional Drawing Enclosure Rating Type 4 IP65 Painted Steel Blue Type 4x IP66 Polycarbonate Gray Type 4x IP66 316 Stainless Steel Options on Enclosure Buzzer Pilot Light OR Strobe Beacon Custom alarms Approval Standards e UL IEC 61010 1 2 Edition 2005 07 22 Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements e UL file number E343390 e CAN CSA 22 2 No 61010 1 2 Edition 2004 07 Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements e CE UL IEC 61010 1 IEC EN 61000 4 ISO 9001 2008 Model 2852 IFA User Manual Rev 22 2 0 INSTALLATION NOTE If any damage to the instrument is found please notify an Arjay Engineering representative as soon as possible prior to installation 2 1 Controller Installation Choose the mounting location in accordance with good in
9. is RED This indicates a major error such as memory failure no probe signal etc Check the following e Make sure the PMC is installed e Make sure the PMC wiring is correct and there are no breaks in the wiring At the controller measure across the Probe Input terminals with a DC meter Make sure Common lead of meter is on terminal It should read 8 to 10 VDC with the PMC connected and approximately 20 to 24 VDC with the PMC terminal disconnected Microprocessor may have lost its parameters due to a surge in the line Go to Diagnostic Menu see Flow Chart to check the Calibration values frequency and capacitance values Call Arjay Technical Support 3 No mA output OR incorrect mA IMPORTANT THE UNIT SOURCES mA OUT FROM output THE mA OUTPUT TERMINAL THIS TERMINAL SHOULD NOT BE CONNECTED TO 24V IT IS NOT A 2 WIRE mA TRANSMITTER See Figure 4 for Electrical hookup details Disconnect external wires from mA output and measure with mA Meter Check the mA output Action direct or inverse and mA output Span are set as desired See section 7 0 Flow chart Change menu If the mA output still does not match the level then call Arjay Technical Support 4 False Alarms Add some time delay in the unit Make sure there is no external interference and electrical noise such as agitators high voltage interference turbulent flow etc Adjust the sensitivity to the next higher value Test after any changes to confirm an alarm M
10. liquid changes to a high dielectric liquid such as oil to water Before calibration determine if the probe is immersed in the high dielectric or the low dielectric liquid during the calibration Following are some examples of typical dielectrics Water 80 Glycol 37 0 Isopropyl Alcohol 18 3 Oil 2 2 Benzene 2 1 Gasoline 2 0 Diesel Jet Fuel 1 7 Air 1 0 As per the Flow Chart press and hold Menu key for 5 seconds to enter the main menu The display will read the first menu item Cal only Press select key enter password 2000 The display will read HI pF to LOW pF If the probe is presently in the high dielectric liquid ie water and is to alarm when it sees a lower dielectric liquid such as fuel press SELECT to accept this setting If the probe is presently in a low dielectric liquid such as fuel and is to alarm when it sees a higher dielectric liquid such as water press gt to toggle the display to read LOW pF to HI pF Press Select to accept this setting A pF reading of the sensor will be displayed Press select to acknowledge and then press select to accept this calibration To abort press the MENU key 13 Model 2852 IFA User Manual Rev 22 If the calibration is successful the display will return to the main operating display and show normal condition THIS COMPLETES THE SETUP AND CALIBRATION PROCEDURE FOR THE 2852 IFA Liquid Interface Alarm Switch Model 2852 IFA User Manual Rev 22 4 0
11. output referenced to Ground It is not loop powered 4mA Normal 20mA Alarm TB6 Probe Input Connect to to between the controller and the PMC card Check polarity to avoid damage TB7 Buzzer Red Pilot Light Output Optional The connection will be factory wired if ordered Model 2852 IFA User Manual Rev 22 2 3 4 Input Output Terminal Specification Input Terminals Power Source Terminal Overvoltage Rated Voltage V Rated ___HZor Specified ID category Current power DC Mains A W VA fluctuation TB3 Il 100 240V 150mA 50 60Hz 1096 TB3 Il 12 OR 24V 250mA DC 15 10 Input Terminals Measuring Circuits Terminal ID Function Measurement Nominal a c or Nominal Rating of Category d c line to a c or d c insulation neutral voltage current required for if CAT I Max external transient circuit overvoltage Ut TB6 Frequency 15V 50mA 0 DI or RI 4 85485 5V 5 0 DI or RI Communicati on Double Insulation Reinforced Insulation Output Terminals Terminal ID Function Isolation or Rated V A V A Load type protection and nominal TB1 Load Relay N O Contact 5A 250VAC amp N C Contact 3A 250VAC TB2 Load Relay N O Contact 5A 250VAC amp N C Contact 3A 250VAC TB5 Current Isolator optional 18V 20mA 50MA 18V 9002 9V 20 45002 7 V
12. signal from the probe into a frequency pulse which can then be transmitted up to one kilometer to the 2852 controller via 2 wire shielded cable The model is intended for use in General Purpose non hazardous areas For hazardous location use refer to Arjay Engineering Ltd For appropriate model 1 1 Features e Microprocessor based capacitance Controller e Relay and discrete 4 20mA alarm output e Modbus protocol via RS 485 for access by Arjay handheld Central Access Panel or compatible system e Local Auto calibration or remote calibration via network e User specified custom features may be added by contacting Arjay Engineering Ltd 1 2 Model Number vs Voltage Input e 2852 IFA 1 100 240 VAC power input e 2852 IFA 3 12 VDC power input 2852 IFA 4 24 VDC power input Model 2852 IFA User Manual Rev 22 ARJAY CONTROLLER OPTIONAL INTRINSIC SAFETY BARRIER INSTALLED INSIDE ARJAY LEVEL PROBE WITH PMC CARD MAINTAIN WATER LEVEL ABOVE SENSING PORTION Figure 1 Typical Tank Application Overview A FLOW TO ARJAY yA CONTROLLER FLOW PIPE TEE INSTALLED IN DIRECTION OF FLOW BUSHING B PIPE N TO ARJAY CONTROLLER PIPE MOUNT AT 3 O CLOCK TO ENSURE poo PROBE IS ALWAYS SUBMERGED TO ARIAY L CONTROLLER BUSHING SUE BUSHING VERTICAL PIPE INSTALLATION HORIZONTAL PIPE INSTALLATION Figure 2 Typical Pipe Application Overview 4 Model
13. 2852 Controller may be monitored and calibrated via RS 485 protocol compatible digital communications Typical features are 1 Ease of wiring in multiple level point monitoring Up to 255 Model 2852 s or other Arjay 2800 Series level monitors may be connected together in a daisy chain 2 wire communication plus power wiring connection to an Arjay Remote Access monitor or customer control system which allows viewing data and setup of any of the transmitters on the network The relay and analog outputs may still be used if necessary 2 Setup for the 2852 for network operation Each 2852 transmitter must have a unique ID number to connect in a network system 4 3 1 Modbus Configuration Parameter settings 9600 Baud Rate Even Parity 8 Data Bits and 1 Stop Bit Wiring connection RS485 connect to D RS485 connect to D 16 Model 2852 IFA User Manual Rev 22 4 3 2 2800 Series Modbus Register Mapping Zero No of REG Based DESCRIPTION TYPE Reg 40001 0 Serial Number float 2 40003 2 Hardware Rev Software Rev byte 1 40004 3 Sensitivity Mode byte 1 40005 4 Instrument Status int 1 40006 5 Model Modbus Address byte 1 40007 6 Relay2 Setup Relay 1 Setup byte 1 40008 7 Password int 1 40009 8 XA A cal parameter float 2 40011 10 XK K cal parameter float 2 40013 12 XC C cal parameter float 2 40015 14 Fil
14. ake sure the active probe is immersed fully in liquid at all times ARJAY ENGINEERING TECHNICAL SUPPORT 800 387 9487 41 905 829 2418 www arjayeng com 19 Model 2852 IFA User Manual Rev 22 7 0 FLOW CHARTS NORMAL OPERATING DISPLAY IFA Normal Press amp hold MENU Press SELECT Press lt gt 2 Press lt y gt Sel Mode Press lt gt Viw Press lt y gt for Entry password See Page 21 See Page 22 Press lt SELECT gt Press lt SELECT gt Press lt SELECT gt Password 2000 Password G FF Hu E See Note 1 0000 View Menu Change Menu Press SELECT Press lt gt HI pF to Press lt gt Low pF to Low pF_ _HI pF oe Press lt y gt p Press lt SELECT gt Cal Pt Press SELECT To Accept Cal Pt Press SELECT Confirm To Abort Press Menu Note 1 Data Entry Press lt gt lt w gt key to increase decrease the digital value Press SELECT key to move the cursor 20 Model 2852 IFA User Manual Rev 22 VIEW MENU Sel Mode View UU Press SELECT Press SELECT Press lt gt Press lt gt Press lt A gt Press lt W gt Dur Press lt W gt
15. change and minimize fluctuating readings For example a 5 second setting means the calculated value of the capacitance and resulting values of pF will start to respond immediately but will take 5 seconds to reach their final values The factory default is O to provide an immediate and active response 4 2 2852 Controller Alarms The two relays on the 2852 IFA operate together The follow parameters are available as a common setting to the two relays 1 2 Delay Minimum time in seconds for an alarm to exist before the relays change to an alarm state The relay alarm state depends on the Relay Action and Failsafe settings The factory setting is 20 seconds to suppress false alarms due to sudden of intermittent flows or disturbances in front of the sensor Action This determines if the Alarms LEDs should activate when the pF reading rises above or below the setpoint The factory default is above the setpoint because the application of air to liquid is an increase in capacitance Failsafe Failsafe typically means that the relay is held in an energized state when in a normal operating condition as opposed to an alarm condition In an alarm condition the relay de energizes which is identical to when the instrument power is shut off The rationale is that the alarm condition should match the Power Fail condition The factory default is Yes for Failsafe 15 Model 2852 IFA User Manual Rev 22 4 3 2852 Controller Network The
16. ics of raw readings and the Setup values such as mA output and ID address This can be viewed without a password and without risk of changing any values This information may be requested during technical assistance inquiries 12 Model 2852 IFA User Manual Rev 22 Change is password protected and allows an operator to enter or change the configuration set up values indicated in the View Changes may be required for the initial setup of relay setpoints delays span etc or to re set the values to the factory default 3 2 3 Data Entry Data Entry Press lt gt V gt key to increase decrease the digital value Press SELECT key to move the cursor Press MENU key to abort certain screens 3 3 2852 Controller Calibration Power up the 2852 Controller The status LED should be green The LCD will scroll to the normal operating screen after a series of the following screens each display for 2 sec It may read Normal or Alarm until a calibration is performed Arjay S XXXXXX SW X XXX NET ID X IFA 2800 PMC EXT HW X X Normal Normal Screen 3 3 1 Site Calibration A factory pre configuration and basic set up has been defaulted into the 2852 IFA but a field calibration is required after installation Allow one hour warmup before proceeding to calibration The unit can be set to alarm when a high dielectric liquid High pF changes to a low dielectric liquid Low pF such as water to oil or when a low dielectric
17. oltage None 24VDC 30mA Buzzer Pilot Light 10 Model 2852 IFA User Manual Rev 22 2 4 Glossary of Symbols Attention consult accompanying documents Attention veuillez consulter les documents ci joints Protective Earth Fuse D Terre de protection Er Coupe circuit fusible Direct Current DC Normally open relay contacts Courant continu Contacts travail Live Marche mise sous tension Sous tension Ground Terre Neutral Normally closed relay contacts Power off Contacts Repos C Arr O mise hors tension Neutre G 11 Model 2852 IFA User Manual Rev 22 3 0 STARTUP AND CALIBRATION 3 4 Startup Check that the power wiring and PMC wiring are wired in accordance with the electrical installation drawing Power On the unit Allow a 1 hour warm up period before calibrating The Status LED on the controller circuit board should be green A red Status LED indicates a fault condition If red check the Troubleshooting section The unit is pre configured and tested at the factory However a quick field calibration is required after power up to tune the probe to the installation conditions See section 3 3 to calibrate the 2852 IFA 3 2 Menu Flow Chart Background Information The control setup diagnostics and calibration are accessed using the display and keypad on the controller The Flow Chart in Section 7 0 provides an overview to the various menu
18. paired ARJAY LEVEL PROBE WITH PMC CARD Use Wrench on N CAUTION Lower Fitting ONLY INSTALL PROBE WITH CARE IF TEFLON COATING IS DAMAGED THE PROBE WILL NOT WORK shown with inactive sheath Figure 3 Probe Installation 2852 IFA User Manual Rev 22 2 3 BUZZER RED LIGHT OPTION 24VDC 30mA MAX USED FOR to p MODEL 2800 SERIES TAGGED TO ALARM 2 SETTING 2 Electrical Installation c Ti RELAY 1 E RS485 OUTPUT NO E 8t OUTPUT ci RELAY 2 1 e 1 4 20mA NO 2 OUTPUT Nog 2 217 OUTPUT POWER INPUT PER MODEL x 308 2 0 TB3 TERMINAL MARKING IF ORDERED VDC MODEL WHERE X 12VDC or 24VDC cARIAY www arjayeng com IMPORTANT Verify Power Input ordered Only apply power type ordered Probe top end shown without Housing Mounted Inside Of I Probe Housing Figure 4 Electrical Installation Overview TB1 TB2 Relay Output 2 SPDT relay Dry Contact 5A 250 VAC Resistive and Contact 3A 250VAC Resistive selectable failsafe or non failsafe selectable high or low acting alarm programmable time delay 0 600 seconds TB3 Power Input Power input as per Model Check if ordered AC or DC Earth ground is connected to G TB4 Network Output Connect RS485 and to the network D and D TB5 4 20 mA Output and The 4 20 mA is a sourced
19. ronics available in painted steel SS or polycarbonate enclosure In Tank Solutions Features and Benefits Technical Specifications Control Unit no moving parts Operating Temp 20 C to 55 C remote electronics via standard twisted pair Raton 04 of full scale pF explosion proof probe is standard Power Input 12 vdc or 24 vdc or 100 240 vac 1096 probe is available with Intrinsically Safe Alarm Relay 2 x 10 amp 240 vac SPDT dry option for alternative HazLoc protection Analog Output 4 mA normal 20 mA alarm high corrosion resistant Teflon and stainless Seda scan deg Mb T Certified UL 61010 1 2 8 Edition stec Westen CAN CSA 22 2 61010 1 4 capacitance technology responds to all IEC EN 61010 1 2nd Edition liquid types IEC 61326 1 HF capacitance technology does not require CE Declared routine cleaning Enclosure Type 4 IP 66 painted steel easy calibration and control set u qr Type 2 1866 ole p Optional Light buzzer beacon Technical Specifications Probe Probe 60 C to 260 PMC 60 C to 55 Approval CSA Div 1 Class 1 Groups C D Intrinsic Safety CSA Intrinsically Safe when ordered with Approved Barrier in Control Unit Div 1 Class Groups A B C D Class Il Groups E F G Class 111 Encl Type 4 Wetted Parts 31655 and Teflon Probe materials are eligible for NACE MR 0175 Compliance Alarm and Status LCD display of alarm status and men
20. s 3 15 circuit breaker or equivalent fuse is required 4 external switch or breaker shall be in close proximity to the equipment and within easy reach of the operator The switch shall be marked as the disconnecting device for the equipment and include the symbols to its and OFF positions using the following symbols C Power Off Power 5 The wiring for AC power should be minimum 18 AWG 300V or as required by local country codes 6 After field wiring the primary wires must be secured to the enclosure by tie wraps to maintain the separation from the signal wires 7 Wiring diagram for permanent connection See drawings at the back of this manual 8 Use copper conductors only Model 2852 IFA User Manual Rev 22 2 2 Probe Installation The probe length is custom ordered to the vessel requirements A minimum 50mm length is recommended Longer probes will provide greater sensitivity to impending liquid changes Probes top mounted into open tanks may require an inactive sheath to ensure the active probe portion is immersed in liquid at all times The PMC junction box should be mounted above the water surge level and in a protected area NOTE To ensure proper operation and electrical safety make sure the 2852 enclosure and the PMC junction box are electrically grounded If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be im
21. s and features Keep a copy of the flow chart at hand when accessing the internal controller features Below is a description of the menu functions 3 2 1 Menu Description Since the 2852 controller has a small LCD some menu descriptions may be in short form The following are the menu descriptions Diags Diagnostics SENSTVTY Sensitivity Cal Pts Calibration points A1 Alarm relay 1 Auto Cal Auto calibrate A2 Alarm relay 2 Man Cal Manual calibrate Alrm Alarm Cal Ok Calibrate ok Alrm Lvl Alarm level Cal Err Calibrate err Diff Hi Differential Hi alarm set value mA out output Diff Lo Differential Lo alarm set value mA Span mA output span Alrm Del Alarm Delay Sec Seconds ASP Relay Setpoint Hi action ALRM CAL Alarm Calibration VSP Relay Setpoint Low action Cal Calibration point 3 2 2 Menu Flow Chart The 2852 controller will display Normal in its normal operating condition and Alarm during an alarm condition From the main menu you can select Cal Only View and Change Cal Only allows a user to calibrate after the equipment is installed A calibration is required at site after power up or anytime a component or sensor is changed out A password is required to enter this and is described in the calibration section View allows an operator to view the Calibration setpoints in pF the Alarms settings 2852 only such as low or high action failsafe or non failsafe and the 0 600 second delay the Diagnost
22. strument practice Extremes of ambient temperature and vibration should be avoided see specifications and installation drawing The 2850 controller may be mounted up to one kilometer from the PMC card using a minimum 18 gauge 2 wire SHIELDED cable Check the polarity of the and wiring between the controller and the PMC prior to powering on the unit to and to to avoid damage Shield of cable should be connected to secondary ground terminal marked as Incoming Earth ground should be connected to primary ground terminal marked 2 on sub plate Important Note The controller is factory set in a Failsafe mode This means that the relays are in an energized state during normal operation The N O relay contact will be held closed and the N C relay contact will be held open during a normal condition This will allow the relay to return to its non energized shelf state during an alarm fault or power failure condition Wire accordingly Note Maximum Conduit size for installation size is Ya FNPT 2 1 1 Permanent Power Connection AC Powered Models only 1 Connection to the building wiring system shall be in accordance with the Canadian Electrical Code CEC Part 1 in Canada the National Electrical Code ANSI NFPA 70 in the USA or the local electrical codes of the country where the equipment is being installed 2 Adisconnecting device is required The disconnecting means shall disconnect all current carrying conductor
23. ter float 2 40017 16 Slope pF per Yo level float 2 40019 18 Offset pF for empty vessel float 2 40021 20 mA output span value float 2 40023 22 mA output Zero value float 2 40025 24 mA output Trim Slope value float 2 40027 26 mA output Trim Offset vlaue float 2 40029 28 Cal1 PV 1st calibration point level value in 96 float 2 40031 30 Cal2 PV 2nd calibration point level value in 96 float 2 40033 32 Cal1 pF 1st calibration point capacitance value in pF float 2 40035 34 Cal2 pF 2nd calibration point capacitance value in pF float 2 TET T 40037 36 Lineer Level ype Not used for Single Point Alarm application fat 2 eee ee ee Em 5 Di o LARA TII ee 2 40045 44 B e A Be a RS Only used for Linear Level or int 1 OE m up 40047 46 mA Analog Output float 2 40049 48 Oscillation Frequency float 2 40051 50 Frequency float 2 40053 52 Capacitance float 2 40055 54 Filtered Capacitance float 2 40057 56 Level float 2 17 Model 2852 IFA User Manual Rev 22 5 0 MAINTENANCE There is no routine cleaning required for this controller 18 Model 2852 IFA User Manual Rev 22 6 0 TROUBLESHOOTING CONDITION DO THIS 1 Status LED is OFF and the LCD Check the power to the unit If the unit is a 12VDC or display if off 24VDC model check the external source and polarity is correct If the unit is a 100 240VAC model then check the Line Neutral and Ground wiring is correct 2 Ifthe status LED
24. us RS 485 Modbus user interface 4 mA normal 20 mA alarm output Probe input The unique PMC circuit design installed at the probe and exclusive to Arjay immediately converts the sensor signal C to a frequency pulse for furtherance to the controller ENGINEERING Arjay Engineering Ltd 2851 Brighton Road Oakville Ontario Canada 16 6 9 http www arjayeng com telephone 441 905 829 2418 America toll free 1 800 387 9487 fax 1 905 829 4701 E 202 SGS Model 2852 IFA User Manual Rev 22 TABLE OF CONTENTS 1 0 INSTRUMENT OVERVIEW tans outs rrt i dett ty ed ee e e Pee d e Be 3 1 1 FOatures DE 3 1 2 Model Number vs Voltage Input sssseseee eme 3 1 3 Specifications coe eed ded do ae onde tee eae 5 2 0 NS TAL A T O Ne eret chet dil oh te dee ec tue tendens 7 2 1 Controller Installation sss eene 7 2 1 1 Permanent Power Connection AC Powered Models only 7 2 2 Probe Installation x rt tret ER IRR e ROME 8 2 3 Electrical InstallatiOn ide o n bet levis lusit gie el tete botes 9 2 3 1 Input Output Terminal Specification 10 24 Glossary of Symbols 45 bcati be iei baie enu thee iba 11 3 0 STARTUP AND 12 3 1 eie ee eee 12 3 2 Menu Flow Chart Background Information

Manual - Arjay Engineering

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