Manual - Arjay Engineering
Contents
1. The leak source can be from the stored product leaking from the tank or from groundwater leaking through the outer wall Remote Electronics available in painted steel SS or polycarbonate enclosure optional alarm light and or buzzer up to 1 km 2 A Features and Benefits Technical Specifications Control Unit e stable stationary probe wraps the tank belly Operating Temp 20 C to 55 C e adjustable time delay and sensitivity to Resolution 007 07 pF at 1 000 pF eliminate nuisance alarms Accuracy 04 of full scale pF e remote electronics via standard twisted pair Hoar Mpal lacio ees 2410 E Alarm Relay 2 x 10 amp 240 vac SPDT dry e available with Intrinsic Safety Barrier for Analog Output A mA norma Po A Hazardous Locations Communication Modbus RS 485 e SS and PVC wetted parts allow for corrosive Certified UL 61010 1 2nd Edition environments CAN CSA 22 2 61010 1 4 e capacitance technology responds to all types IEC EN 61010 1 2nd Edition of liquids IEC 61326 1 CE Declared Enclosure Type 4 IP 66 painted steel or Type 4X IP 66 polycarbonate or SS Optional Light buzzer beacon Technical Specifications Sensing Probe Operating Temp 60 C to 55 C 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 Ill Encl Type 4 Wetted Parts 316SS and Teflon Probe Materials are eligible for NACE MR 0175 Complianc2. C to 55 C PMC 60 C to 55 C probe Relative humidity 0 to 95 non condensing Altitude lt 2000 m Installation Category Pollution Degree 2 Model 2852 ILA User Manual Rev 2 3 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 Model 2852 ILA User Manual Rev 2 3 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 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 Check the polarity of the and wiring between the
3. MODEL 2852 ILA Interstitial Tank Leak Alarm User Manual Technical Support Continental North America Toll Free 1 800 387 9487 Ph 1 905 829 2418 Fx 1 905 829 4701 7 ARJA A Product of Arjay Engineering Ltd Oakville Ontario Canada www ArjayEng com MODEL MODEL o HARDWARE NO HARDWARE NO SOFTWARE NO SERIAL NO AAA 2852 ILA Interstitial Tank Leak Alarm LLE ze ENGINEERING Reliable monitoring of the interstitial space in double wall tanks The probe includes a flexible SS sheath to ignore level changes in fiberglas tanks The alarm tip is inserted to approximately the 7 o clock position to ignore condensation alarms A gt men a Pi ies al pee ct se Optional Intrinsically Safe Sensor flanges available to mate with tank flanges or threaded for customers own flange union assembly ii 0 eS we Over 40 years of capacitance experience stands behind the 2852 ILA leak alarm The flexible cable probe continuously monitors for the accumulation of liquid in the normally dry tank wall e capacitance technology alarms on any liquid e no moving parts e remote alarm unit mounts safely away from tank site The 2852 ILA probe monitors the interstitial space near the bottom of the tank and locks in on the capacitance field around the probe tip Any liquid that intrudes into this space will increase the capacitive field and initiate an alarm
4. Model 2852 ILA User Manual Rev 2 3 6 0 TROUBLESHOOTING CONDITION DO THIS 1 Status LED is OFF and the LCD display Check the power to the unit If the unit is a 12VDC or 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 output IMPORTANT THE UNIT SOURCES mA OUT 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 mA Meter Check the mA output Action direct or inverse and mA output Span are set as desired See section 7 0 Flow chart Ch
5. 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 ILA User Manual Rev 2 3 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 Model 2852 ILA User Manual Rev 2 3 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
6. Probe Length Probe Length A B Probe Length Approx 100 mm 1 There should be good electrical conductivity between the metal tanks and the PMC Junction Box INSTALL PROBE WITH CARE IF TEFLON COATING IS DAMAGED THE PROBE WILL NOT WORK Figure 1 Probe Installation Model 2852 ILA User Manual Rev 2 3 2 3 Electrical Installation 1 OUTPUT NCI TB1 RELAY2 y OUTPUT Lo 4 20mA E 2 OUTPUT TB2 POWER INPUT e y en PER MODEL X L NIE TB3 TERMINAL MARKING IF ORDERED VDC MODEL WHERE X 12VDC or 24VDC 24VDC 30mA MAX USED FOR BUZZER RED LIGHT OPTION 05 MODEL 2800 SERIES TAGGED TO ALARM 2 SETTING ARJAY www arjayeng com IMPORTANT Verify Power Input ordered Only apply power type ordered PMC card Mounted Inside of Junction Box 6 AWG TEFZEL CABLE Figure 2 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 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 output referenced to Ground It is not loop powered 4mA
7. lt V gt Press lt SELECT gt y Press lt SELECT gt Press lt SELECT gt PMC A 0 Oxxxx Action Press lt A gt Alrm vSP Press lt SELECT gt Press lt Y gt Press lt SELECT gt 3 ds Action See Press lt SELECT gt Alrm vSP Note 2 Vv PMC K FILTER Press lt SELECT gt Eailsafe Press lt SELECT gt PMC K Press lt SELECT gt A A FILTER See Press o Press lt SELECT gt 00 Note 1 Failsafe See PMC C Press lt SELECT gt POSS ee a WE PMC C e Press lt A gt XXX X Press lt SELECT gt Press lt Y gt Press lt SELECT gt y Press lt SELECT gt DEFAULTS Yes Note 1 Data Entry Press lt SELECT gt Press lt gt lt W gt key to increase decrease the digital value See DEFAULTS Press lt SELECT gt key to move the cursor Note 3 Note 2 High amp Low Selection Press lt SELECT gt Press lt 4 gt lt w gt key to toggle between v low amp v high action NET ID Note 3 Yes amp No Selection Press lt gt lt w gt key to toggle between Yes amp No action Press ds See NET ID Note 1 001 20
8. 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 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 posit
9. 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 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
10. 3 VIEW MENU Press lt SELECT gt Press lt SELECT gt Press lt A gt Press lt gt Press lt A gt P lt A gt SELECT SELECT SELECT press lt gt SELECT press gt SELECT Cal Alarms Diags Setup Exit Press lt SELECT gt Press lt SELECT gt Press lt SELECT gt Press lt SELECT gt Press lt Y gt y Cal Pt SENSTVTY x xpF X XHZ 3 0 Press lt SELECT gt Press lt SELECT gt Press lt gt Press lt W gt Press lt A gt Action Press lt A gt Press lt W gt Alrm vSP Press lt Y gt Failsafe Yes FILTER 0 Press lt W gt Press lt A gt Press lt Y gt Press lt SELECT gt Press lt SELECT gt Note 1 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 19 Model 2852 ILA User Manual Rev 2 3 CHANGE MENU Sel Mode Change Press lt SELECT gt Password 2000 0000 for Entry password Press lt SELECT gt Press lt SELECT gt l Press lt A gt Press lt A gt Press lt gt P A SELECT SELECT SELECT K press lt gt SELECT press ay ASELECT Cal Alarms Diags Setup Exit a a a Press lt A gt Press gt Press lt SELECT gt Press lt SELECT gt Press lt SELECT gt Press lt Y gt y y Cal Pt SENSTVTY x xpF X XHZ 3 0 Press lt SELECT gt Press lt SELECT gt Press MA SENSTVTY See Press lt A gt 3 0 Note 1 Press
11. If the calibration is successful the display will return to the main operating display and show normal condition A simulation of the ILA alarm can be performed by placing fingers on the blue probe wire in the junction box This will simulate an increase in capacitance After the preset time delay unit should go into alarm THIS COMPLETES THE SETUP AND CALIBRATION PROCEDURE FOR THE 2852 ILA Interstitial Tank Leak Alarm Model 2852 ILA User Manual Rev 2 3 4 0 SETUP AND ALARM 4 1 2852 Controller Setup The 2852 controller has the following Setup parameters 1 4 2 Sensitivity The sensitivity determines the amount of picfard pF change required to cause an alarm Since the dielectrics of liquids can vary greatly the unit is shipped with a factory default of 3 0 pF At this setting the unit will alarm with about 50mm of water on the active probe or up to 100mm of oil on the active probe A pF to mm relationship for your liquid cannot be factory determined due to dielectric and installation variables If the Sensitivity value is changed in the field it is recommended to consult technical factory support before proceeding A leak test maybe advisable to confirm an alarm 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
12. ange 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 a dry condition ARJAY ENGINEERING TECHNICAL SUPPORT 800 387 9487 1 905 829 2418 www arjayeng com Model 2852 ILA 7 0 FLOW CHARTS NORMAL OPERATING DISPLAY ILA User Manual Rev 2 3 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 View OOO Change Exit gt Press lt y gt Press lt SELECT gt X Password 2000 See Note 1 for Entry password 0000 Press lt SELECT gt Cal Pt XXX XPF Press lt SELECT gt Cal Pt To Accept Press lt SELECT gt Confirm To Abort Press lt Menu gt Note 1 Data Entry Press lt SELECT gt l View Menu See Page 19 Press lt y gt Press lt SELECT gt Change Menu See Page 20 Press lt y gt Press lt A gt Press lt Y gt Press lt A gt lt wW gt key to increase decrease the digital value Press lt SELECT gt key to move the cursor Model 2852 ILA User Manual Rev 2
13. anks to avoid nuisance alarms from condensation The active probe tip is 100mm long to increase sensitivity for both high and low dielectric liquids The unit will alarm from an external wall leak of groundwater into the space or an internal wall leak of product into the space The complete 2852 ILA system consists of the probe the PMC card and the 2852 controller The standard ILA probe is constructed of a Flexible Tefzel coated cable with Flexible SS inactive sheath The PMC card is mounted in a junction box at the probe head 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 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 ILA 1 100 240 VAC power input e 2852 ILA 3 12 VDC power input e 2852 ILA 4 24 VDC power input Model 2852 ILA User Manual Rev 2 3 13 Specifications Power Input 12 VDC 15 10 or 24 VDC 15 10
14. c a ed 12 3 3 2852 Controller Calibration coccion anciana buaian iiai 12 3 3 1 Ste albanil te 12 4 0 SETUP 0 ALARM a nen NE Rn AA 13 4 1 2092 CONTO NES CUD saa ii tido 13 4 2 2892 CONTO ler ALANIS os sa 13 4 3 2852 Controller NetWork coat si 14 4 3 1 Modbts ConfiguratidA tias 14 4 3 2 2800 Series Modbus Register Mapping cccccoccnconoccnnccnoconcnnanonononons 15 5 0 MAINTENANCE ii id 16 6 0 TROUBLESHOOTING a el seein enone 17 7 0 ry Ok Os Ge A dl gt Coenen er ee eee Ree eee ad 18 Foure T Probe Instalati Nao T Figure 2 Electrical Installation OvervieW ooooooocccococcnnccoocnnconanoncononcnnonnconnonannnnnnnnrnnnnnncnnnonanennos 8 Rev 2 3 Model 2852 ILA User Manual Rev 2 3 1 0 INSTRUMENT OVERVIEW The Arjay Interstitial Tank Leak Alarm provides a means for detecting the accumulation of liquid in the interstitial space of double walled tanks and vessels The Arjay probe has an active capacitance sensor at the probe tip that monitors the normally dry space around it Liquids have a higher dielectric constant than the dry condition which results in a increased capacitance reading when liquid accumulates and displaces the air The remote mounted Arjay 2852 controller monitors the capacitance change of the probe and activates a relay contact for use with alarms and control interlocks The probe tip should be positioned at approximately the 7 o clock position in cylindrical tanks or 20mm off the bottom of vertical t
15. 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 15 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 operatin
16. e Alarm and Status LCD display of alarm status and menus RS 485 Modbus user interface Relays f y 4 mA normal 20 mA alarm output Power input 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 ARJAY HN ENGINEERING Arjay Engineering Ltd 2851 Brighton Road Oakville Ontario Canada L6H 6C9 http Iwww arjayeng com telephone 1 905 829 2418 N America toll free 1 800 387 9487 fax 1 905 829 4701 Model 2852 ILA User Manual TABLE OF CONTENTS 1 0 INSTRUMENT O VERVIEVOS cocipicneca acota assicio A sis eiii 3 1 1 ECOS a a dr E 3 1 2 Model Number vs Voltage INput cccconccccoccncocccnccncncnnacnnonncncnnncncnnacnnnnannnnos 3 1 3 SPECIICATIONS techs ds 4 2 0 INSTALLATION edo even eeee 6 2 1 Controller Instala sustancia 6 2 1 1 Permanent Power Connection AC Powered Models only 6 2 2 o Ao o o O O T 2 3 EISCIM Gall IMS CAN AU OM sxe A a 8 2 3 1 Input Output Terminal Specification oocccoccncccnnncccnnnccnnnccnnnnss 9 2 4 Glossary SY IMDOIS sra A anche dda ntevasataetawidacmasacrecas 10 3 0 STARTUPAND CALIBRATION culta redil idos 11 3 1 A 11 3 2 Menu Flow Chart Background Information coooccncccoccnnconccnnononononnnncnncnnanonoss 11 3 2 1 Men Descansar dust otra asian 11 3 2 2 Menu OW CA cn 11 3 2 3 Data EN nata bola tui
17. g 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 Model 2852 ILA User Manual Rev 2 3 43 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 ina 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 Model 2852 ILA User Manual Rev 2 3 4 3 2 2800 Series Modbus 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 Add
18. ions 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 Model 2852 ILA User Manual Rev 2 3 2 2 Probe Installation The probe length is custom ordered to the tank requirements Determine the probe length so that the probe tip is approximately at the 7 o clock position of a cylindrical tank or 20 mm above the bottom of a vertical tank In cylindrical tanks the probes are flexible and will wrap around the tank belly Accommodate this circumference and the tank spool piece in the length calculation A flanged connection is required on these installations In vertical tanks a rigid probe is provided and can be mounted from the top or from the side at the bottom 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 impaired PMC JUNCTION BOX p i TTT A le El
19. o enter or change the configuration set up values indicated in the View 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 ILA 2800 PMC EXT HW X X Normal Normal Screen 3 3 1 Site Calibration A factory pre configuration and set up has been defaulted into the 2852 ILA As such a user set up is not required in the field A basic calibration is only required Before performing final calibration make sure probe is mounted in it s final position on the tank Allow at least 1 hour warm up before performing calibration 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
20. ostics SENSTVTY Sensitivity Cal Pts Calibration 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 wet ILA probe 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 Model 2852 ILA User Manual Rev 2 3 Change is password protected and allows an operator t
21. ress 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 SAR Linear Level type Not used for Single Point Alarm application Hoal 2 Relay 1 Differential Low Alarm Level OR Single Point THORN Alarm pF Single Point Cal used as captured pF during cal ngal 2 Relay 2 Differential Low Alarm Level Only used for Linear a Level type Not used for Single Point Alarm application noai 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 eee type Not used for Single Point Alarm application mt 40049 Oscillation Frequency float 2 Model 2852 ILA User Manual Rev 2 3 5 0 MAINTENANCE There is no routine cleaning required for this controller
22. 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 Model 2852 ILA User Manual Rev 2 3 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 ILA 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 Since the 2852 controller has a small LCD some menu descriptions may be in short form The following are the menu descriptions Diags Diagn
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