Manual - Arjay Engineering
Contents
1. MODEL 2852 OWS Oil Water Separator amp Sump Alarm User Manual Technical Support Continental North America Toll Free 1 800 387 9487 Ph 1 905 829 2418 Fx 1 905 829 4701 ARJAY A Product of Arjay Engineering Ltd Oakville Ontario Canada www ArjayEng com MODEL O HARDWARE NO ON SOFTWARE NO SERIAL NO Oil Water Separator amp Sump Alarm RJAY ENGINEERING Reliable interface monitoring of oil water separators sump pits and containments for pump control and alarm Over 40 years of capacitance experience stands behind the 2852 OWS oil water alarms The sensing probe continuously monitors for the oil water interface in a water filled sump or separator It is typically used to control pumps Operate valves or activate alarms explosion proof head e capacitance technology does not foul or require routine cleaning e no moving parts e remote monitor mounts away from the process for operator safety and ease of control wiring Y The 2852 OWS sensing probe monitors the capacitance field around the active probe tip As the volume of separated oil increases in the separator or is drawn down toward the probe tip the probe capacitance changes This change is used to activate the relay for alarm interface and control 3 4 npt 31655 process connection Inactive sheath eliminates false alarms from surging optional alarm light and or buzzer Je Remote E2. Outlet Outlet Figure 1 Typical Oil Water Separator Application Overview ARJAY CONTROLLER 0 PTIONAL INTRINSIC SAFETY BARRIER INSTALLED INSIDE ARJAY LEVEL PROBE WITH PMC CARD A PUMP OUTLET MAINTAIN WATER LEVEL ABOVE SENSING PORTION 4 SENSING PORTION OF PROBE IS ABOVE PUMP SUCTION SUMP PUMP Figure 2 Typical Sump Application Overview 13 Specifications Power Input 12 VDC 15 10 or 24 VDC 15 10 250mMA 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 AAA 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 4 mA during Normal and 20 mA during an alarm condition 900 Ohms max OR 450 Ohms max 12VDC Power 2 SPDT relay dry N O Contact 5A 250 VAC Resistive and N C Contact 3A 250VAC Resistive selectable failsafe or mA
3. 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 Make sure the active probe end Is in water ARJAY ENGINEERING TECHNICAL SUPPORT 800 387 9487 1 905 829 2418 www arjayeng com Model 2852 0WS User Manual Rev 2 7 0 FLOW CHARTS NORMAL OPERATING DISPLAY OWS Normal Press amp hold lt MENU gt Press lt SELECT gt Sel Mode Press lt A gt Sel Mode Press lt A gt Sel Mode Press lt A gt Sel Mode only View Y Change Exit Press lt y gt Press lt y gt Press lt y gt Press lt gt Press lt W gt Press lt SELECT gt Press lt SELECT gt Press lt SELECT gt V y a EES S gie rr 7 ee Note for Entry password 0000 View Menu Change Menu l See Page 20 See Page 21 Press lt SELECT gt Cal Pt xxx xpF Press lt SELECT gt Cal Pt To Accept Confirm Press lt SELECT gt To Abort Press lt Menu gt Note 1 Data Entry Press lt A gt lt W gt key to increase decrease the digital value P
4. to verify that the control unit alarms The air simulates an oil condition The Alarm1 and Alarm2 LEDs on the circuit will activate red Place the sensor back into the water and the alarm will clear THIS COMPLETES THE SETUP AND CALIBRATION PROCEDURE FOR THE 2852 OWS Oil Water Separator and Sump Alarm 4 0 SETUP AND ALARMS 4 1 2852 Controller Setup The 2852 controller has the following Setup parameters 1 4 2 Sensitivity 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 oil required to cause an alarm Since different oils and the conditions of the oil water separation 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 Maximum sensitivity on an OWS probe is 15 pf PMC The PMC card has three personalized values that are entered into the controller These are factory entered at time of shipment These values are indicated as A K amp C and are labeled on the PMC card installed at the probe Alarm Calibration above or below setpoint This setting advises the controller if the calibrated pF value is above or below the alarm setpoint For the OWS the calibration pF value is below the setpoint because the unit is required to alarm at a lower pF value which indicates oil The factory default is
5. 70 in the USA or the local electrical codes of the country where the equipment is being installed 2 A disconnecting device is required The disconnecting means shall disconnect all current carrying conductors 3 15A circuit breaker or equivalent fuse is required 4 An 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 ON and OFF positions using the following symbols C Power Off l Power On 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 2 2 Probe Installation The probe length is custom ordered to the tank or sump requirements Determine the probe length so that the alarm point is approximately 50 mm above the probe tip halfway point on the active probe The active probe is the exposed 100 mm white Teflon probe 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 eq
6. Below Setpoint 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 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 2852 Controller Alarms The two relays on the 2852 ILA 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 a
7. Not used for Single Point Alarm application mt 40049 ES Oscillation Frequency float 2 5 0 MAINTENANCE There is no routine cleaning required for this controller 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 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 output FROM 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
8. Signal Output Relay Output non failsafe selectable high or low acting alarm programmable time delay O 600 seconds Measuring Range 0 5000 pF most applications are 100pF to 1000pF Accuracy 0 2 of setpoint Resolution 0 05 of setpoint via network display 0 002 of Full Scale capacitance via network display Calibration Single point Auto calibration Environmental a Operating Temperature 20 C to 55 C controller 60 C to 55 C PMC 60 C to 260 C probe Relative humidity 0 to 95 non condensing Altitude lt 2000 m Installation Category Pollution Degree 2 Mechanical Specification Refer to Dimensional Drawing Enclosure Rating Type 4 1P65 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 UL IEC 61010 1 2 4 Edition 2005 07 22 Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements UL file number E343390 CAN CSA 22 2 No 61010 1 274 Edition 2004 07 Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements CE UL IEC 61010 1 IEC EN 61000 4 ISO 9001 2008 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 moun
9. TARTUP AND CALIBRATION cota tala recio idos 12 3 1 A 12 3 2 Menu Flow Chart Background Information nnnnannnenennnnnnnnnennnnnnnnnsennnnennnennnnee 12 3 2 1 Men Descansa ia dust atraco 12 3 2 2 Menu FOW En 12 3 2 3 Data EN ia did 13 3 3 2852 Controller Calibration isch st fon ancianidad 13 3 3 1 EE 13 4 0 AA NS nt eC ne 14 4 1 2092 CONTO Sel ad 14 4 2 2092 Gontroller ALANIS od 14 4 3 2852 Controller NGIWOMK coat sia 15 4 3 1 Modbts ConfiguratidA EE 15 4 3 2 2800 Series Modbus Register Mapping nonnnsannnnennnnnnnnnnennnnnnennne 16 5 0 MAINTENANCE ii ida 17 6 0 RR e ere et CL 18 7 0 FEINA gt Coenen er ee ene Ree eee o 19 TABLE OF FIGURES Figure 1 Typical Oil Water Separator Application CUvervlew 4 Figure 2 Typical Sump Application Overview oocccooccccoccncccccnccnnnncnonnnonnnnnnonnnonnnnnnnnnnononenononenonos 4 EIQUES Probe Nstalati M EE 8 Figure 4 Electrical Installation Cverview ssnnsesannunsnnnesnnnnnrnrnrsrnnrnsnnesrrrrnsnrrrsrnrrnsnrresnnrrennnne 9 Rev 2 3 1 0 INSTRUMENT OVERVIEW The Arjay Oil Water Separator amp Sump Alarm provides a means for detecting the accumulation of oil in oil water separators sumps or similar vessels The Arjay probe has an active capacitance sensor at the probe tip that monitors the water at the depth of the active probe end Water has a high dielectric constant which results in a high capacitance reading Oil or a similar hydrocarbon or low diel
10. ctivate when the pF reading rises above or below the setpoint The factory default is below the setpoint because the application of water to oil is a decrease in capacitance 14 3 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 4 3 2852 Controller Network The 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 4 3 2 2800 Series M
11. ectric liquid separates to the surface of the water and eventually accumulates to a depth that the oil water interface crosses the active probe tip The dielectric of the oil is substantially lower than water which results in a dramatic decrease in capacitance The remote mounted Arjay 2852 controller monitors the capacitance change of the probe and activates a relay contact for use with alarms pumps valves etc The sensor requires at least 6 mm of oil to cross the active probe to indicate an alarm Emulsified separations may require more coverage of the probe tip to initiate an alarm The active probe tip is made to 100mm to accommodate for these emulsified interfaces The complete 2852 OWS system consists of the probe the PMC card and the 2852 controller The standard probe is constructed of a Teflon coated probe with SS inactive sheath The PMC card is mounted in a junction box safely above the water surge level The PMC card translates the Capacitance signal from the sensor into a frequency pulse which can then be transmitted up to one kilometer to the 2852 controller via 2 wire shielded cable OR 3 wire shielded cable for A00764 probe The Oil Water Separator must be of the type that is permanently filled with water The clean water is gradually displaced from the vessel as oily water is introduced The active sensing tip of the probe is positioned below the oil suction pipe and above the clean water discharge pipe When the oil water inte
12. is a sourced 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 2 3 1 Input Output Terminal Specification Input Terminals Power Source Terminal Overvoltage Rated Voltage V Rated __ HZor Specified category Current power DC Mains A W VA fluctuation ID B3 T II 12 OR 24V 250mA DC 15 10 Input Terminals Measuring Circuits Terminal ID 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 B4 Ti RS485 l 5V 5mA 0 DI or RI Communicati on Double Insulation Reinforced Insulation Output Terminals Terminal ID Isolation or Rated V A Max V A Load type protection and nominal Load TB1 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 20mA4 4509 Light 2 4 Glossary of Symbols Attention consult accompanying documents Attention veuillez consulter les documents ci joints Protective Earth Fuse CL Terre de protection AF Coupe circuit fu
13. lectronics available in painted steel SS or polycarbonate enclosure Shut down of pumps in sumps to avoid the risk of pumping oil to the drain Alert operators or control valves when oil has accumulated in interceptors and separators Features and Benefits e no moving parts e remote electronics via standard twisted pair e explosion proof probe is standard e probe is available with Intrinsically Safe option for alternative HazLoc protection e high corrosion resistant Teflon and stainless steel wetted parts e capacitance technology responds to all oil types e HF capacitance technology does not require routine cleaning e easy calibration and control set up Need to know the oil depth in your separator Look to the Arjay 4100 OWS Oil Water Separator Monitor Alarm and Status Relays f Power input Probe input CE ARJAY ENGINEERING Arjay Engineering Ltd 3 A EE http www arjayeng com 4 mA normal 20 mA alarm output 2851 Brighton Road Oakville Ontario telephone 1 905 829 2418 5 OV Technical Specifications Control Unit Operating Temp 20 C to 55 C Resolution 007 07 pF at 1 000 pF Accuracy 04 of full scale pF Power Input 12 vdc or 24 vdc or 100 240 vac 10 Alarm Relay 2 x 10 amp 240 vac SPDT dry Analog Output 4 mA normal 20 mA alarm Communication Modbus RS 485 Certified UL 61010 1 2nd Edition CAN CSA 22 2 61010 1 4 IEC EN 61010 1 2nd Editi
14. libration points Al 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 mA 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 oil alarm or dry sensor 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 The 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 Diagnostics 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 Change is password protected and allows an operator to enter or change the configuration set up values indicated in the Vie
15. odbus Register Mapping Zero No of Based DESCRIPTION TYPE a 40001 0 Serial Number float 40003 2 Hardware Rev Software Rev 40004 Sensitivity Mode 40005 Instrument Status 40006 Model Modbus Address 40007 6 Relay2 Setup Relay 1 Setup 40009 za XA A cal parameter 40011 XK K cal parameter 40013 XC C cal parameter 40017 Slope pF per level 40019 Offset pF for empty vessel 40021 mA output span value 40023 mA output Zero value 40025 mA output Trim Slope value 40027 mA output Trim Offset vlaue 40029 Cal1 PV 1st calibration point level value in 40031 Cal2 PV 2nd calibration point level value in 40033 Cal1 pF 1st calibration point capacitance value in pF 40035 Cal2 pF 2nd calibration point capacitance value in pF Relay 1 Differential High Alarm Level Only used for see Linear Level type Not used for Single Point Alarm application neat 2 Relay 2 Differential High Alarm Level Only used for SE Linear Level type Not used for Single Point Alarm application Hoal 2 Relay 1 Differential Low Alarm Level OR Single Point SSES Alarm pF Single Point Cal used as captured pF during cal neal 2 Relay 2 Differential Low Alarm Level Only used for Linear SS Level type Not used for Single Point Alarm application BCS 2 40045 44 Relay 1 On delay in seconds Only used for Linear Level or int q Single Point Alarm application Relay 2 On delay in seconds Only used for Linear Level SE type
16. on IEC 61326 1 CE Declared Type 4 IP 66 painted steel or Type 4X IP 66 polycarbonate or SS Light buzzer beacon Enclosure Optional Technical Specifications Probe Probe 60 C to 260 C PMC 60 C to 55 C Approval CSA Div 1 Class 1 Groups C D also available LS with an Intrinsic Safety Barrier at the Contol unit ABSA CRN 0F07450 2 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 Ill Encl Type 4 316SS and Teflon Intrinsic Safety Wetted Parts Probe materials are eligible for NACE MR 0175 Compliance LCD display of alarm status and menus RS 485 Modbus user interface up to 1 km The unique PMC circuit design installed at the probe and exclusive to Arjay immediately converts the sensor signal to a frequency pulse for furtherance to the controller Canada L6H 6C9 N America toll free 1 800 387 9487 fax 1 905 829 4701 Model 2852 OWS User Manual TABLE OF CONTENTS 1 0 INSTIRUMENT OV EE 3 1 1 ECOS ie gi Pre a ee 3 1 2 Model Number vs Voltage Input 3 1 3 ell eet e EE 5 2 0 INSTALA ff DEE 7 2 1 Controller Instala scsi ica 7 2 1 1 Permanent Power Connection AC Powered Models only T 2 2 Beie et E le EE 8 2 3 EISCIM Gall IMS CAN AU OM sie id 9 2 3 1 Input Output Terminal Specification occccoccncconcnccconnccnononononos 10 2 4 Glossary SY Lee E 11 3 0 S
17. ress lt SELECT gt key to move the cursor VIEW MENU Press lt SELECT gt Press lt SELECT gt Press lt A gt Press lt A gt Press lt A gt P lt A gt SELECT SELECT SELECT proce lt gt SELECT Press gt SELECT Alarms Diags Setup Exit Press lt Y gt E v Press lt SELECT gt Press lt SELECT gt Press lt SELECT gt Press lt SELECT gt y SENSTVTY 1 0 x xpF X XHZ Press lt SELECT gt Cal Pt x xpF Press lt SELECT gt Press lt gt Press lt gt Press lt W gt Press lt W gt Failsafe Yes Press lt W gt Press lt SELECT gt Press lt W gt Press lt SELECT gt Note 1 Data Entry Press lt A gt lt wW gt key to increase decrease the digital value Press lt SELECT gt key to move the cursor 20 Model 2852 OWS User Manual CHANGE MENU Sel Mode Change Press lt SELECT gt Password 2000 0000 for Entry password Press lt SELECT gt SELECT Keres A SELECT in ann Press lt A gt Press y Press lt SELECT gt Press lt SELECT gt Cal Pt x xpF x xpF X XHZ Press lt SELECT gt Press lt SELECT gt Press lt A gt Press lt y gt Press lt SELECT gt Press lt SELECT gt Action Press lt A gt Alrm vSP Press lt Y gt Press lt SELECT gt Action See Alrm vSP Note 2 Press lt SELECT gt Failsafe Yes Press lt SELECT gt y Failsafe See Yes Note 3 Press l
18. rface reaches the probe tip the alarm activates Sumps normally have a pump with the suction on the pit bottom The liquid level of the sump is maintained above the probe tip with a separate level device so that the probe tip is continuously in liquid If there is sufficient accumulation of oil that it risks suction by the pump the alarm activates A dry probe tip condition in either application will indicate an alarm 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 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 OWS 1 100 240 VAC power input e 2852 OWS 3 12 VDC power input e 2852 OWS 4 24 VDC power input ARJAY CONTROLLER INTRINSIC SAFETY BARRIER INSTALLED INSIDE ARJAY LEVEL PROBE PUMP WITH PMC CARD PRA PUUGA ALALILA FIGOJ GJER ILLL LILAR CRA AAA AAA AAA ARCA LLM AAA PURER OUTLET ner L A RS pm cas 6 OIL WATER INTERFACE OS NCAA RES ee EE EA f See Ke Ge D 4 Sensing Portion of Probe should Pump Suction Tip be below Pump Suction Tip Clean Water and Above Clean Water
19. sible 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 mise hors tension Neutre G D Power on N 3 0 STARTUP AND CALIBRATION 3 1 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 OWS 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 provides an overview to the various menus 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 Ca
20. t SELECT gt Press lt A gt Press lt y gt Press lt SELECT gt Note 1 Data Entry Press lt 4 gt lt W gt key to increase decrease the digital value Press lt SELECT gt key to move the cursor Note 2 High amp Low Selection Press lt gt lt wW gt key to toggle between v low v high action Note 3 Yes amp No Selection Press lt A gt lt w gt key to toggle between Yes amp No action Note 1 21 Press lt A gt SELECT Press lt Y gt SELECT Diags Setup Note 3 Rev 2 3 Press lt SELECT gt Press lt A gt Press gt gt SELECT Exit GI Press lt A gt Press lt SELECT gt Press lt Y gt SENSTVTY X X Press lt SELECT gt SENSTVTY See X X Note 1 H WU n n H ch lt e m O V SE O O F PMC A PMC K PMC K Press lt SELECT gt FILTER See 00 Note 1 PMC C Press lt SELECT gt a T D D gens XI E X O U o o lt 2 o o oS o dE ERS eal 98 lt e Ola S EN E ER CERS gt m ER Ia m m m m m 2 3 z V y V v v Press lt gt Press lt W gt PMC C XXX X Press lt SELECT gt DEFAULTS Press lt SELECT gt a o I0 ES A lt o Bi m O V DEFAULTS Yes Press lt SELECT gt NET ID 1 l Press lt SELECT gt NET ID 001
21. ting location in accordance with good instrument 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 Belden 8760 or Equivalent When using the A00764 probe there is 25ft of 3 wire SHIELDED cable Belden 8772 or Equivalent see drawing 20100753 for wiring hookup provided 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 _L Incoming Earth ground should be connected to primary ground terminal marked D 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 34 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
22. uipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired ARJAY LEVEL PROBE WITH PMC CARD Use Wrench on Lower Fitting ONLY CT N CAUTION INSTALL PROBE WITH i CARE IF TEFLON COATING IS DAMAGED THE PROBE WILL NOT WORK Figure 3 Probe Installation Electrical Installation 4 RS485 2 7 OUTPUT cl q RELAY 1 No7 m Geif OUTPUT Nc 3 Cl o RELAY 2 o2 S pra NO qn S OUTPUT wes P L OUTPUT POWER INPUT E i E1 Ki E PER MODEL x T 5 TERMINAL MARKING IF ORDERED VDC MODEL WHERE X 12VDC or 24VDC 24VDC 30mA MAX USED FOR Cosi BUZZER RED LIGHT OPTION L oe MODEL 2800 SERIES TAGGED TO ALARM 2 SETTING ARJAY www arjayeng com IMPORTANT Verify Power Input ordered Only apply power type ordered ES G Probe top end shown PMC card without Housing Mounted Inside Of Probe Housing P Figure 4 Electrical Installation Overview TB1 TB2 Relay Output 2 SPDT relay Dry N O 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 O 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
23. w Changes will 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 A gt lt W gt key to increase decrease the digital value Press lt SELECT gt key to move the cursor Press lt MENU gt 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 OWS 2800 PMC EXT HW X X X X Normal Screen 3 3 1 Site Calibration A factory pre configuration and set up has been defaulted into the 2852 OWS As such a user set up is not required in the field A basic calibration is only required 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 A pF reading of the sensor will be displayed Press select to acknowledge and then press select to accept the new calibration To abort press the lt MENU gt key If the calibration is successful the display will return to the main operating display To verify the sensor and electronics are responsive where the installation permits the probe can be lifted above the water at least 30 seconds
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