ARJAY ENGINEERING 2852-FCM User Manual Download | Manualshive

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2852-FCM

Revision 1.0

P a g e 9 | 28

3.1

Features



Microprocessor based RF capacitance level transmitter



Two Differential Alarm relays (SPDT, 3A @ 250VAC)



0-20mA or 4-20mA field selectable output



Modbus protocol via RS-485 for access by Arjay handheld, Central Access Panel or compatible

system



Local 2 point Auto or Manual calibration or remote calibration via network



User specified custom features may be added by contacting Arjay Engineering Ltd.

3.2

Model Number Table

MODEL

DESCRIPTION

2852-FCM REMOTE MOUNTED 4-20mA (NON-ISOLATED) C/W 2 ALARM RELAYS

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7
8
9
10
11
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Summary of Contents for 2852-FCM

Page 1: ...D FOAM CONTROL MONITOR USER MANUAL REV 1 0 ARJAY ENGINEERINGLTD 2851 Brighton Road Oakville Toronto Canada L6H 6C9 TEL 1 905 829 2418 FAX 1 905 829 4701 NORTH AMERICA 1 800 387 9487 WEBSITE www arjayeng com EMAIL arjay arjayeng com ...

Page 2: ...THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 3: ... Powered Models Only 15 5 3 Glossary Of Symbols 15 6 0 STARTUP AND CALIBRATION 16 6 1 Startup 16 6 2 Menu Flow Chart Background Information 16 6 2 1 Menu Short Form 16 6 2 2 Menu Description 17 6 2 3 Data Entry 17 6 3 285X Controller Setup 17 6 3 1 Setup And Network 17 6 3 2 Relay Setup Menu 18 6 4 285X Controller Calibration 20 6 4 1 Auto Calibration 20 6 4 2 Manual Calibration 20 7 0 CONTROLLER ...

Page 4: ...values Communication Interface Modbus RS485 Relays Analog Outputs Relay Outputs 2 SPDT relays Dry Contacts are 3A 250 VAC Resistive selectable failsafe or non failsafe selectable high or low acting alarm programmable time delay 0 600 seconds 0 100 differential 2851 Isolated mA Signal Output 4 20 mA 900 Ohms max 24VDC Power OR 450 Ohms max 12VDC Power Optional Note If Isolation is ordered then rela...

Page 5: ...ments CAN CSA 22 2 No 61010 1 2nd Edition 2008 10 01 Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements CE UL IEC 61010 1 IEC EN 61000 4 ISO 9001 2008 Remote Level Probe Certification Hazardous Locations North America CSA file number 56812 Class 2258 02 Process control equipment for Hazardous Locations Class 2258 82 Process control equipment for Hazardous L...

Page 6: ...ocess pressure is 1500psi 10342KPa 3 Only approved certified entry devices shall be used 4 Flameproof joints are not permitted to be repaired in the field If the flamepath is damaged the enclosure is to be removed from service and replaced with a new enclosure Model 28aaa bbb c defg Where aaa bbb c d e f g 51 LT 1 100 240VAC 50 60Hz 0 No Housing 0 No Light 0 No Buzzer 0 No Intrinsic Barrier 52 LS ...

Page 7: ...dicates a potentially or imminently hazardous situation which if not avoided could result in death or serious injury DANGER Indicates a potentially or imminently hazardous situation which if not avoided will result in death or serious injury NOTICE Indicates a situation which if not avoided may cause damage to the instrument Information that requires special emphasis ...

Page 8: ...pecified for the tank and depth of material to be measured Probes can be inserted vertically or angled into the tank The importance is that the probe must be parallel to the tank wall when inserted for best linearity The sensor does not differentiate between liquid and foam This system is designed to monitor for foam presence in normal air condition The PMC card is mounted in a junction box at the...

Page 9: ...electable output Modbus protocol via RS 485 for access by Arjay handheld Central Access Panel or compatible system Local 2 point Auto or Manual calibration or remote calibration via network User specified custom features may be added by contacting Arjay Engineering Ltd 3 2 Model Number Table MODEL DESCRIPTION 2852 FCM REMOTE MOUNTED 4 20mA NON ISOLATED C W 2 ALARM RELAYS ...

Page 10: ... 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 at controller side only Incoming Earth ground should be connected to primary ground terminal marked on sub plate NOTICE The controller operates in a Failsafe Mode factory default This means that the relays are in an energized ...

Page 11: ...al linear IMPORTANT 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 GROUND 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 ...

Page 12: ...2852 FCM Revision 1 0 P a g e 12 28 Figure 2 Probe Installation ...

Page 13: ...et in a Failsafe mode TB3 Power Input Power input as per Model Check if ordered AC or DC Earth ground is connected to Primary ground screw inside of enclosure TB4 Network Output Connect RS485 and to the network D and D TB5 mA Output The 4 20mA 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 durin...

Page 14: ...ategory Nominal a c or d c line to neutral voltage if CAT I Max transient overvoltage Ut Nominal a c or d c current Rating of insulation required for external circuit TB6 Frequency I N A DI or RI TB4 RS485 Communication I 5V 5mA 0 DI or RI Double Insulation Reinforced Insulation Output Terminals Terminal ID Function Isolation or protection Rated V A Max V A Load type and nominal TB1 Load Relay 3A ...

Page 15: ...s to its ON and OFF positions using the following symbols Power Off 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 ...

Page 16: ...ed using the display and keypad on the controller The Flow Chart in Section 10 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 6 2 1 Menu Short Form Since the 285X controller has a small LCD some menu description may be in short form The following are the menu...

Page 17: ... 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 6 2 3 Data Entry Data Entry Press key to increase decrease the digital value Press SELECT key to move the cursor Press MENU key to abort certain screens 6 3 285X Controller Setup Power up the 285X Controller The status LED should be g...

Page 18: ...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 This can be user selected from 0 99 9 seconds 8 Password The unit is sh...

Page 19: ... Factory default is Yes The following table shows the effect of the Relay Action and Failsafe settings Relay Action Failsafe Setting Effect High No Alarm condition when foam level rises above the High Setpoint for at least the alarm delay period Alarm condition remains active until the foam level drops below the Low Setpoint No action is taken when the foam level is between the High and Low Setpoi...

Page 20: ... 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 2nd foam level entry value is accidentally left at the 1st calibration point level Re do the auto calibration according to the above steps 1 3 2 The foam level ...

Page 21: ... 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 28XX for network operation Each 28XX controller must have a unique number to connect in a network system See section 10 0 Menu Flow Chart CHANGE menu for details to change the ID number Where XX 51 or ...

Page 22: ...tional 40034 33 Cal1 pF Level calibration 1st capacitance value in pF float 2 Optional 40036 35 Cal2 pF Level calibration 2nd capacitance value in pF float 2 Optional 40038 37 Relay 1 Differential High Alarm float 2 Optional 40040 39 Relay 2 Differential High Alarm float 2 Optional 40042 41 Relay 1 Differential Low Alarm float 2 40044 43 Relay 2 Differential Low Alarm float 2 40046 45 Relay 1 On d...

Page 23: ...2852 FCM Revision 1 0 P a g e 23 28 8 0 MAINTENANCE There is no routine cleaning required for this controller ...

Page 24: ...AL THIS TERMINAL SHOULD NOT BE CONNECTED TO 24V IT IS NOT A 2 WIRE mA TRANSMITTER See Figure 3 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 10 0 Flow chart Change menu If the mA output still does not match the level then call Arjay Technical Support 4 F...

Page 25: ...2852 FCM Revision 1 0 P a g e 25 28 ARJAY ENGINEERING TECHNICAL SUPPORT 800 387 9487 1 905 829 2418 www arjayeng com ...

Page 26: ...2852 FCM Revision 1 0 P a g e 26 28 10 0 FLOW CHARTS ...

Page 27: ...2852 FCM Revision 1 0 P a g e 27 28 ...

Page 28: ...2852 FCM Revision 1 0 P a g e 28 28 ...

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