Manual
Contents
1. 16 Model 2880 2881 2882 OWI User Manual Rev 2 0 4 2 2882 Transmitter Relay Setup 2882 Option only 2882 Transmitter has 2 relays A1 and A2 that allow 4 parameters per relay plus a time delay value which is common to all relays 1 HIGH ALARM Diff Hi POINT This value is specified level Above this value relay action is taken depending on the Relay Action and Failsafe settings Factory default is 40 for A1 and 80 for A2 LOW ALARM Diff Lo POINT This value should be less than the High control point Below this value relay action is taken depending on the Relay Action and Failsafe settings Factory Default is 2096 for A1 and 60 for A2 RELAY DELAY Minimum time in seconds for an alarm to exist before the corresponding relay changes to its alarm state The relay alarm state depends on the Relay Action and Failsafe settings Factory default is 0 RELAY ACTION High or Low Action For high action the alarm is set when the level rises above the high alarm set point and is reset when the level drops below the low alarm set point For low action the alarm is set when the level drops below the low alarm set point and is reset when level rises above the high alarm set point Factory default is HIGH action FAILSAFE Failsafe typically means that the relay is normally when not in an alarm condition held in an energized state In an alarm condition the relay is de energized i e identical to2. press Elec Press lt SELECT gt Auto Cal Man Cal Exit A1 HiLvl See 2 E eu RA SPAN DEFAULTS see fence XXX XXX 95100 Noe Yes Tess cy d Y Press ELEGIR Press SELECTS Press lt SELECT gt Press Ead Press ELEC press GELECT gt see se At A2 Lolvi pF n QUU NET D Press SELECT Press lt SELECT gt Press Press lt gt Press Press lt SELECT gt v as MIA AT sel 9 M see MAOUT lee INET D le zi Sec oon XX Direct Notes x Notet T T Press Press SELECT Press SELECT Press lt SELECT gt Press SELECT Press SELECT Dela Dela x ee ANVE E v y FILTER 22 4 20 Notet Press pec Press Press Press pcr or Delay Delay Press lt SELECT gt See See f FILTER 5 See f Cal Err Y Note Note1 4 20 mA xx Notet W2pF see Press SELECT Press SELECT T SesNoe2 xxxx Notet v 4 Press lt SELECT gt SUM x AT Dir A2 Dir Press lt SELECT gt Press Alrm SP Alrm SP PETJE ERST Press peer Press peer 1 Dir se 2 Dir se Press SELECT 5 AIrm ASP Notes Press Press Etec Note 4 Data Entry Falate Falssfe _ Flash cursor indicates to entry the value ss es Press lt A gt
3. 40011 10 XK K cal parameter float 2 40013 12 XC C cal parameter float 2 40015 14 Filter float 2 40017 16 Slope pF per 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 viaue float 2 40029 28 Cal1 PV 1st calibration point level value in float 2 40031 30 Cal2 PV 2nd calibration point level value in float 2 40033 32 pF 1st calibration point capacitance value in pF float 2 40035 34 Cal2 pF 2nd calibration point capacitance value in pF float 2 ot eT 40037 36 Linear Level ype Not used fr Single Point Alarm application 198 2 qum CTI S 40039 38 pear Level ype Not used for Single Point Alarm application at 2 eae E 5 40045 44 Only used for Linear Level or int 1 cela Romy Teco 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 19 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 5 0 MAINTENANCE There is no routine cleaning required for this Level Transmitter 20 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 6 0 TROUBLESHOOTING CONDITION DO THIS 1 Status LED is OFF and the LCD display if off Check the po
4. gm Www arjayeng com See drawing at the back of this manual for wiring Front Side of Controller Pidbetopendshown Nem eee IMPORTANT wont Housing Verify Power Input ordered I Only apply power type ordered IF ORDERED WITH WINDOW 2880W 2881W amp 2882W ONLY Use the round keypad on the top www arjayeng com For detail see drawing the back of this manual Figure 4 Electrical Installation Overview TB1 TB2 Relay Output Optional for Model 2882 only 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 0 600 seconds TB3 Power Input Power input as per Model Check if ordered AC or DC Earth ground is connected to G 4 Network Output Connect RS485 and to the network D and D TB5 4 20 mA Output and Optional Isolator for Model 2881 The 4 20 is a sourced output referenced to Ground It is not loop powered TB6 Probe Input Probe input is wired by the factory The terminal block is disconnected during shipment for static reasons and has to be re connected during installation TB6 has two connections Either is acceptable 10 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 2 3 2 Input Ou
5. be in short form The following are the menu descriptions Diags Diagnostics Alrm Alarm Cal Pts Calibration points Lvi Alarm level Auto Cal Auto calibrate Diff Hi Differential Hi alarm set value Man Cal Manual calibrate DiffLo Differential Lo alarm set value Cal Ok Calibrate ok Alrm Del Alarm Delay CalErr Calibrate err ASP Relay Setpoint Hi action out output vSP Relay Setpoint Low action mA Span mA output span Sec Seconds 3 2 2 Menu Description The 2880 OWI controller will display a Level value in its normal operating condition For calibration purposes 0 will be considered as 0 water 100 oil and 10096 will be considered as 100 water 0 oil When determining your interface values for calibration consider this in your calculation From the main menu you can select Cal Only View and Change Cal Only allows a two point calibration only A password is required to enter this menu item and is described in the calibration section Output parameters and other control features cannot be accessed through this menu It is recommend to use this menu if only a re calibration is to be done View allows an operator to view the Calibration setpoints in pF the Alarms settings 2882 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
6. 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 20 mA DC 900 Ohms max OR 450 Ohms max 12VDC Power 2881 Isolated Optional Note If Isolation is ordered then relays are not available 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 0 1000 pF most applications are 100pF to 1000pF Accuracy 0 296 Resolution 0 05 of setpoint via network display 0 002 of Full Scale capacitance via network display Calibration Linear 2 point Auto calibration and Manual calibration Environmental Operating conditions Continuous Operating Temperature 20 C to 55 C controller 60 to 260 probe Relative humidity 0 to 95 non condensing Altitude 2000 m Installation Category ll Pollution Degree 2 Equipment mobility Fixed Model 2880 OWI 2881 OWI 2882 OWI User Manual
7. risk of changing any values This information may be requested during technical assistance inquiries 13 Model 2880 2881 2882 OWI User Manual Rev 2 0 Change is password protected and allows an operator to enter or change the configuration set up values indicated in the View 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 2880 Transmitter Calibration Power up the 2880 transmitter The status LED should be green The LCD should go to the normal operating screen after a series of the following screens each display for 2 sec Arjay XXXXXX SW X XXX NET ID X OWI 2880 PMC Int HW X X X X gt gt 3 3 1 Auto Calibration As per the Menu Flow Chart in Section 6 0 press Menu key until Cal only shows on display Press select key enter password 2000 and if auto calibration is required press SELECT ey 1 For the 1 point entry enter the current interface level value in Note 0 0 water and 100 100 water For example an entry of 30 indicates the interface level is at 30 water 70 oil See section 3 2 3 for value entry description Confirm the capacitance value in pF is stabilized press lt SELECT gt key to accept the 1 point value The 1 calibration point has been d
8. when the instrument power is shut off The rationale is that the alarm condition should match the Power Fail condition Factory default is Yes The following table shows the effect of the Relay Action and Failsafe settings Relay Failsafe Action Setting Effect High No Alarm condition when process level rises above the High Setpoint for at least the alarm delay period Alarm condition remains active until the process level drops below the Low Setpoint No action is taken when the process level is between the High and Low Setpoints In the alarm condition the corresponding alarm LED is turned ON and the relay is energized High Yes Alarm condition set and reset as above In the alarm condition the corresponding alarm LED is turned ON but the relay is de energized Low No Alarm condition when process level drops below the Low Setpoint for at least the alarm delay period Alarm condition remains active until the process level rises above the High Setpoint No action is taken when the process level is between the High and Low Setpoints In the alarm condition the corresponding alarm LED is turned ON and the relay is energized Low Yes Alarm condition set and reset as above In the alarm condition the corresponding alarm LED is turned ON but the relay is de energized 17 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 4 3 2880 Transmitter Network The 2880 Transm
9. CALLY ISOLATE THE METAL PROBE FROM THE LIQUID DAMAGE CAUSING LEAKS MAY CAUSE READING ERRORS THREADED ENTRY FLANGED ENTRY CONCENTRIC SHIELD ENTRY pesi mu a 2 Entry Typical IAS 1 For threaded and flanged entry types the probe must be parallel to the tank wall 2 For threaded and flanged entry types measurement sensitivity is increased by reducing the probe to wall distance 3 There should be good electrical conductivity between the tank wall and the transmitter enclosure For probes with a concentric shield this is not important INSTALL PROBE WITH CARE IF TEFLON COATING IS DAMAGED THE PROBE MAY NOT WORK Figure 1 Probe Installation BE mnndi im 4 24VDC Power Input OIL WATER Typical Installation Figure 2 Typical Installation Overview 1 Model 2880 OWI 2881 OWl 2882 OWI User Manual Rev 2 0 OIL Typical Installation Figure 3 Typical Installation Overview 2 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 2 3 2 3 1 1 2 3 4 5 6 7 8 Electrical Installation Permanent Power Connection AC Powered Models only 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 c
10. E MODEL 2880 OWI 2880W OWI MODEL 2881 OWI 2881W OWI MODEL 2882 OWI 2882W OWI Oil Water Interface Transmitter 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 HARDWARE NO 5 1 SOFTWARE NO SERIAL NO 2880 2881 OWI 2882 OWI Oil Water Interface Transmitter LAS Reliable monitoring of oil water interface and emulsions Over 40 years of capacitance experience stands behind the 2880 OWI transmitter The sensing probe continuously monitors the capacitance of the inserted probe As the interface or emulsion layer rag layer crosses over the probe a proportional 4 20 mA output is provided Typical applications include oil water separators oil water knock out tanks treater trains and decanting tanks power input 4 20 mA RS 485 Modbus capacitance technology does not foul or require cleaning no moving parts remote monitor mounts safely away from the process explosion proof The 2880 OWI sensing probe monitors the probe head capacitance field around the probe A calibration is performed against the an oil condition and a water condition The active portion of the probe is fully submerged into the liquid and sized to your targeted range of interest As the
11. Press Y gt Press Y gt 2 pF Delay Delay NET ID XXXOX Xx XX 1 Press lt A gt Press lt A gt Press A gt Press lt SELECT gt Press lt gt Press lt gt Press lt gt 1 Dir 2 Dir FILTER Alrm SP Alrm SP 0 Press gt Press lt gt Press lt A gt Press lt gt Press lt gt Press lt gt Failsafe Failsafe SETUP Press lt SELECT gt Yes Yes Exit A gt Press A gt Press lt Y gt Press lt Y gt Exit Exit T Press lt SELECT gt Press lt SELECT gt SELECT Alarms Menu L shows in 2882 model Only 23 Model 2880 OWI 2881 OWI 2882 OWI User Manual Rev 2 0 CHANGE MENU Sel Mode Chane Press lt SELECT gt Password cee Note 1 SELECT Press lt A gt SELECT gt _ 5 Press gt JSELECT 0000 for Entry password Alarms Diags ress 0 Setup ress lt gt Exit SELECT Press gt Press SELECT Pese Suec Press SELECT Press Cal A2 XXpF Press Prose BELEGT 50 Van _ Press SELECT Press ELEC 0
12. RTANT For standard threaded entry and flange entry probes without concentric shields make sure the fittings are clean to ensure a GOOD ELECTRICAL CONNECTION BETWEEN THE PROBE HEAD ENCLOSURE AND THE TANK REFERENCE GND 2 The distance between the probe and the ground reference This only applies to probes without concentric shields The closer the distance to the tank wall the greater the sensitivity of measurement too close and bridging problems may occur 3 The degree of parallelism between the probe and the reference ground A probe parallel to the reference ground will provide the best linear output signal Note the concentric shield option is inherently linear due to the concentric shield 4 The measurement accuracy may be affected by the temperature change of the material in the tank The amount of measurement error depends on the material If the temperature change is excessive temperature correction may be required Contact the Arjay representative for more information 5 Agitators or moving objects in the tank Moving objects in the tank close to the probe such as agitator blades moving baffles etc appear as moving ground references to a capacitance probe and will cause measurement errors In applications where these objects are present a concentrically shielded probe should be used 6 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 CAUTION INSTALL THE PROBE WITH CARE THE TEFLON SHEATH IS USED TO ELECTRI
13. Rev 2 0 Mechanical Specification Refer to Dimensional Drawing Approval Standards UL IEC 61010 1 2 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 2 4 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 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 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 Probes The 2880 OWI Series Level Transmitter consists of the transmitter enclosure fitted with a capacitance probe The probe length is customer specified for the tank and range of interface to be measured Teflon coated probes are most typical Most probes will include an inactive stainless steel sheath on the upper portion of the probe This is to blind the probe from the affects of entrance nozzles vapours and changes in the upper liquid gas phase The active portion of the 2880 OWI probe must only see oil water or the interface combination of oil and water If the overall liquid level lowers to expose the active portion of the probe to vapour the output will indicate a decreasing interface level less water more oil It is recommended t
14. essel was not changed from the 1 calibration point Re do the auto calibration according the above steps 1 3 3 If 1 or 2 are not the cause call Arjay Engineering Ltd Toll free 800 387 9487 North America Only tel 1 905 829 2418 14 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 3 3 2 Manual Calibration Manual Calibration allows you to override the values that have been set through the automatic calibration This feature may be used for a number of different reasons For example 1 One ofthe calibration points is desired to be re calibrated The user can view the pF reading of the probe in the Diagnostics menu and also record the actual interface level in the vessel at the same time These values can then be entered in the Manual Calibration to change either Cal Point 1 or Cal Point 2 2 calibration was done using 20 and 60 as the two values for example but it was determined a future date that the 60 should have been entered as 70 3 The process level cannot be altered at the time of calibration so a random pF value and level value is entered as the second point to allow operations until a proper second point can be entered See method in 1 above THIS COMPLETES THE CALIBRATION PROCEDURE FOR THE 2880 OWI TRANSMITTER 15 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 4 0 SETUP AND NETWORK 4 1 2880 Transmitter Setup The 2880 transmitter has the following set
15. ible for NACE MR 0175 Compliance Hazardous Location Use Available Component Certifications may be suitable to your application Consult Arjay for assistance 2880 Electrical Safety UL CSA or IEC 61010 Housing UL FM CSA Class 1 Group B C D Class Il Group EEG Probe CSA Class 1 Group CD The electronics for this model can also be mounted remote from the probe Refer to the Model 2852 OWI The probe becomes Intrinsically Safe when ordered with an IS Barrier installed in 2852 OWI control panel CSA Div 1 Class 1 Groups A B C D All calibration and power wiring is done at the main control unit This is mounted directly onto the probe ron SGS Arjay Engineering Ltd 2851 Brighton Road Oakville Ontario Canada L6H 6C9 http llwww arjayeng com telephone 1 905 829 2418 N America toll free 1 800 387 9487 fax 1 905 829 4701 Model 2880 2881 OWI 2882 OWI User Manual Rev 20 1 0 2 0 3 0 4 0 5 0 6 0 7 0 Figure 1 Probe Installation Figure 2 Typical Installation Overview 1 Figure 3 Typical Installation Overview 2 Figure 4 Electrical Installation Overview TABLE OF CONTENTS INSTRUMENT OVERVIEW icine 2 5 2 itte inrer ide esed nti 3 1 1 Features 12 Model Number Tabl 1 3 Specifications INSTALLATION 2 1 Probes 22 Probe installatioi 2 3 Electrical Installation 2 3 1 Permanent Power Connection AC Powered Models only 2 3 2 Input O
16. itter 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 2880 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 4 20mA output may still be used if necessary 2 Setup for the 2880 for network operation Each 2880 transmitter must have a unique number to connect in a network system See section 6 0 Menu Flow Chart CHANGE menu for details to change the ID number 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 18 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 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
17. le Direct Current DC Normally open relay contacts Courant continu 4 Contacts travail Normally closed relay contacts Power off Contacts Repos O Arr mise hors tension Power on Live D Marche mise sous tension L Sous tension Neutral Ground N Neutre G Terre 12 Model 2880 2881 2882 OWI User Manual Rev 2 0 3 0 STARTUP AND CALIBRATION 3 1 Startup Connect the probe terminal block as per Figure 3 Power up the 2880 transmitter 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 LCD should go to the normal operating display See section 6 0 Menu Flow Chart The unit is normally pre configured and tested at the factory However field calibration is required on startup See section 3 3 lt 2880 Transmitter Calibration gt to calibrate the transmitter 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 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 The 2880 transmitter has a password protect feature The default password is 2000 Since the 2880 transmitter has a small LCD some menu descriptions may
18. lok Cal Err 1 XXXXXX 1 ____5 2_____ Note 1 Data Entry __ Flash cursor indicates to entry the value Press lt gt lt gt key to increase decrease the digital value Press SELECT key to move the cursor Note 2 Calibration information it only shows about 2 seconds 22 Model 2880 OWlI 2881 OWI 2882 OWI User Manual Rev 2 0 VIEW MENU Sel Mode View Press SELECT Press SELECT Press lt gt Press lt Press lt gt SELECT Press Wo Press SELECT press lt W gt SELECT Press ays SELECT Alarms r Diags Setup Exit iae Press SELECT press lt SELECT gt Press SELECT Press SELECT Press lt W gt 1 Select gt Select XxpF mA SPAN 0 0 Alarn4 lt alarm 2 x xHz 100 0 Press gt Press A gt Press gt Press lt SELECT gt Press lt W gt Press lt SELECT gt Press lt W gt 1 pF A1 A2 HiLvl mA Out XX X XXX XXX Direct Press lt A gt Press gt Press lt A gt Press lt SELECT gt press lt W gt Press Y gt Press Y gt 2 1 LoLvl A2 LoLvl mA TYPE 100 0 XXX XXX 4 20 Press lt A gt Press lt A gt Press gt Press lt SELECT gt pres c W gt
19. lt V gt key to increase Press SELECT Press SELECT SELECT Alarms Menu e shows 2882 model Only decrease the digital value Failsafe see Failsafe Press lt SELECT gt key to move the cursor Yes INotes Yes Note 2 nion mation it only Press Edu Press shows about Note 3 Value Selection ext EXE _ Flash cursor indicates to select the value Press gt V key to select the desired Press SELECT value 24
20. o use a flange union or retraction device for easy retraction of the probe from the tank while maintaining the wiring connections This can aide in calibration and routine testing 2 2 Probe installation The factory process connection is a 3 4 MNPT 31655 fitting standard probes or 1 MNPT heavy duty probes Flanges concentric shields and retraction devices are available as options The entrance configuration may vary depending on the application requirements WHEN USING THE PROBE FITTING USE A WRENCH ON THE LOWER FITTING ONLY The probe fittings are compression type with Teflon ferrules assembled by applying torque between the two hex sections The fittings are sealed at the factory to provide a compression seal capable of withstanding high pressures Once opened they cannot be reassembled without new ferrules The probe orientation can be vertical or angled The length of the exposed active probe needs to extend the full vertical interface change level refer to Drawing 2 1 and 2 2 Concentric shields can be considered for improved linearity Shields should only be used on clean separations where clogging from a rag emulsion layer is not a concern The following points are important when installing the probe 1 Reference ground This is important for accurate measurements and is typically the metal walls of the tank For non metallic tanks a concentrically shielded probe is required in which case the shield provides its own Ground IMPO
21. odes of the country where the equipment is being installed A disconnecting device is required The disconnecting means shall disconnect all current carrying conductors 15A circuit breaker or equivalent fuse is required 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 and OFF positions using the following symbols C Power Off D Power On The wiring for AC power should be minimum 18 AWG 300V or as required by local country codes After field wiring the primary wires must be secured to the enclosure by tie wraps to maintain the separation from the signal wires Wiring diagram for permanent connection See drawings at the back of this manual Use copper conductors only Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 citi RELAY 102 fo m OPTIONAL FoR OUTPUT Nc 3 MODEL 2882 ram ONLY RELAY 2 m NOL2 OUTPUT 1 POWER INPUT 00 em MODEL 3 PROBE INPUT TERMINAL MARKING IF ORDERED VDC MODEL WHERE X 12VDC or 24VDC MODEL 2800 SERIES O 5 IF 2881 ORDERED
22. oil water interface or emulsion crosses or envelopes the probe the capacitance change is tracked and an output of 4 20 mA is provided 3 4 npt 31655 process connection on standard probes flanges optional Inactive probe Sheath length to order Teflon coated probe length to order Features and Benefits no moving parts electronics is integral to the probe high corrosion resistant Teflon and stainless steel wetted parts capacitance technology responds to all oil types HF capacitance technology does not require routine cleaning easy calibration and control set up Technical Specifications Electronics 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 0 1 amp max 100 240 vac 10 Communication RS 485 Modbus Control Interface 2880 OWI 0 4 20 mA non isolated output 2881 OWI 0 4 20 mA isolated output 2882 OWI 0 4 20 mA non isolated output and 2 x 10amp 240 vac SPDT dry relays Optional Viewing window of Level LCD Alarm and Status Optional Relays ENGINEERING LCD display of alarm status and menus RS 485 Modbus user interface 0 4 20 mA output Technical Specifications Probe Process Temp Pressure 60 C to 260 C Teflon probe 103 bar 10342 kPA 1500psi at stable temperature CRN ABSA CRN 0 07450 2 Wetted Parts 316SS and Teflon Probe materials are elig
23. one The LCD should go to the 2 point entry menu 2 Change the interface level in the vessel by a minimum of 10 096 The interface level may be raised or lowered as long as the interface is along the length of the active probe A change of less than 10 0 may be used in some applications but is not recommended to ensure calibration accuracy The capacitance value in pF will increase if raising the interface or decrease if lowering the interface In some applications where the entrance connection is a flange or extraction fitting you can simulate an interface change by raising the probe so the interface lowers on the probe This can only be done if the active portion of the probe is not exposed to air 3 For the 2 point entry enter the new current interface level value in For example an entry of 60 indicates the interface level is at 60 water 40 oil See section 3 2 3 for value entry description Confirm the capacitance value in pF is stabilized press SELECT key to accept the 2 point value The 2 calibration point has been done If the calibration is successful the display will show Cal Ok for a couple of seconds and then return to the calibration menu If the display shows Cal Err then a calibration fault has occurred Check the following 1 The 2 interface entry value is accidentally left at the 1 calibration point level Re do the auto calibration according the above steps 1 3 2 The interface in the v
24. re 2 1 for electrical hookup details ARJAY ENGINEERING TECHNICAL SUPPORT 800 387 9487 1 905 829 2418 www arjayeng com 21 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 7 0 FLOW CHARTS NORMAL OPERATING DISPLAY LT XX Press amp hold MENU Press TET Sel Mode 555 lt gt Sel Mode Press lt gt Sel Mode Press lt gt Sel Mode 2 Cal only View Change Exit Press lt gt Press lt W gt Press lt W gt Press lt A gt Press lt gt Press lt SELECT gt Press lt SELECT gt Press lt SELECT gt Password 2000 i ee ae See Note 1 ror View Menu for Entry password See 17 Press lt SELECT gt _ JCALIBRTE Press gt CALIBRTE Press lt CALIBRTE Press lt SELECT gt Auto Cal 5 Man Cal __ 5 lt Ext Press Press Ww Press lt SELECT gt Press lt SELECT gt 1 Gee Note 1 1 see Note1 XX X pF XXX X Press SELECT Press lt SELECT gt 9 HZA Sae Note 1 1 PF see Note1 Press lt SELECT gt Press lt SELECT gt 7 zx 1 Cal ok Cal Err 9 I See Note 1 1 1 XxxX 1 1 MEC sid PME Press lt SELECT gt 2 PF see Note 1 XXX Press lt SELECT gt b i Ca
25. roportional output with optional signal isolator e 4 20 can be Direct acting 4 to 20 mA 0 water 100 oil to 100 water 0 oil or Indirect acting 4 to 20 mA 0 oil 10096 water to 100 oil 096 water e Modbus protocol via RS 485 for access by Arjay handheld Central Access Panel or compatible system e Local 2 point Auto or Manual calibration or remote calibration via network e User specified custom features may be added by contacting Arjay Engineering Ltd 1 2 Model Number Table MODEL DESCRIPTION 2880 OWI PROBE MOUNTED 4 20mA NON ISOLATED 2880W OWI PROBE MOUNTED 4 20mA NON ISOLATED WINDOW MOUNT 2881 OWI PROBE MOUNTED 4 20mA ISOLATED 2881W OWl PROBE MOUNTED 4 20mA ISOLATED WINDOW MOUNT 2882 OWl PROBE MOUNTED 4 20mA NON ISOLATED C W RELAYS 2882W OW PROBE MOUNTED 4 20mA NON ISOLATED C W RELAYS WINDOW MOUNT Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 1 3 Specifications Power Input 12 VDC 15 1096 or 24 VDC 15 1096 250mA maximum 100VAC 240VAC 1096 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
26. tput Terminal Specification Input Terminals Power Source Terminal Overvoltage Rated Voltage V Rated ___HZor Specified ID category Current power DC Mains fluctuation TB3 Il 100 240V 150mA 50 60Hz 10 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 1 15V 50mA 0 DI or RI TB4 RS485 1 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 See Note below SAQ250VAC amp N C Contact 3A 250VAC TB2 Load Relay N O Contact See Note below 5 250 amp N C Contact 3A 250VAC TBS Current 18V 20mA 50mA Q18V 9002 9V 20 4502 Note If 2881 isolation ordered then relays are not available TB5 factory wired to TB2 and TB1 becomes 4 20mA Output See 2881 drawing at the back of this manual 11 Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 2 4 Glossary of Symbols Attention consult accompanying documents Attention veuillez consulter les documents ci joints Protective Earth Fuse Terre de protection Coupe circuit fusib
27. up parameters This is done in CHANGE menu under SETUP See section 6 0 1 mA Output Span The mA output span may be set anywhere within the measurement range Normal mA Span is set at 100 level but this span value can be changed to a required interface level 2 mA Output For Direct mA output 4 mA 0 water 100 oil and 20 mA 100 water 0 oil For Inverse mA output 4 mA 0 oil 100 water and 20 mA 100 oil 096 water The unit is shipped as Direct 3 mA Type Transmitter can be set for 4 20 mA or 0 20 mA The unit is shipped as 4 20 mA 4 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 5 NETID The ID number is used only for network applications To communicate on a network each controller must have a unique ID number Important if multiple units on a network have the same address network errors will result 6 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 0 to provide an immediate and active response
28. utput Terminal Specification 24 Glossary of Symbols STARTUP AND CALIBRATION 3 1 Startup 3 2 Menu Flow Chart Background Information 3 2 1 Menu Description 3 2 2 Menu Description 3 2 3 Data Entry 3 3 2880 Transmitter Calibration 3 3 1 Auto Calibration 3 3 2 Manual Calibration SETUP AND NETWORK 4 1 2880 Transmitter Setup 42 2882 Transmitter Relay Setup 2882 Option only 43 2880 Transmitter 4 3 1 Modbus Configuration 4 3 2 2800 Series Modbus Register Mapping MAINTENANCE TROUBLESHOOTING att dame ett petes AAAA TABLE OF FIGURES CONN Model 2880 OWI 2881 2882 OWI User Manual Rev 2 0 1 0 INSTRUMENT OVERVIEW The 2880 OWI sensing probe monitors the capacitance field around the active probe As the oil water interface level moves up and down the probe the capacitance change in picofards pF is monitored by the Arjay processor and translated into a 4 20 mA proportional output and Modbus RS 485 communication After the probe is installed and the vessel is filled with liquid a calibration will be required by entering the value of two different oil water interface levels The oil water interface level must be physically changed in the vessel to allow the 2880 OWI to match your entered interface level against the pF reading of the probe 1 1 Features e Microprocessor based capacitance level transmitter e 4 20mA p
29. wer to the unit If the unit is a 24 12VDC model check the external source is 24V 12VDC Make sure the 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 sure the probe wiring is correct and plugged into controller Microprocessor may have lost its parameters due to a surge in the line Go to Diagnostic Menu see 6 0 Menu Flow Chart to check the Calibration values frequency and capacitance values e Call Arjay Technical Support 3 mA output does not match the level First determine if the problem is in the mA output or if the unit is not calibrated to the vessel e Check the calibration values go to View Menu see Section 6 0 Flow chart and read the 2 calibration points values If the calibration values are not correct redo calibration see section 3 3 2880 Transmitter Calibration If the calibration values are correct go to next step to check mA output Check the mA output Action direct or inverse and mA output Span are set as desired See section 6 0 Flow chart Change menu If the mA output still does not match the level then call Arjay Technical Support IMPORTANT THE UNIT SOURCES mA OUT FROM THE mA OUTPUT TERMINAL THIS TERMINAL SHOULD NOT BE CONNECTED TO 24V IT IS NOTA2 WIRE mA TRANSMITTER See Figu
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