E3 Modulevel. Liquid Level Displacer Transmitter. with Foundation fieldbus digital output. Foundation fieldbus operating Manual

Transcription

1 E3 Modulevel with Foundation fieldbus digital output Foundation fieldbus operating Manual Liquid Level Displacer Transmitter

2 Read this Manual Before Installing This manual provides information on the E3 Modulevel Electronic Transmitters. It is important that all instructions are read carefully and followed in sequence. Detailed installation, wiring and calibration instructions are included in this manual. If this equipment is used in a manner not specified by this manufacturer, the protection provided by the equipment may be impaired. Conventions Used in this Manual Certain conventions are used in this manual to convey specific types of information. General technical material, support data, and safety information are presented in narrative form. The following styles are used for notes, cautions, and warnings. Notes Notes contain information that augments or clarifies an operating step. Notes do not normally contain actions. They follow the procedural steps to which they refer. Cautions Cautions alert the technician to special conditions that could injure personnel, damage equipment, or reduce a component s mechanical integrity. Cautions are also used to alert the technician to unsafe practices or the need for special protective equipment or specific materials. In this manual, a caution box indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. Warnings Warnings identify potentially dangerous situations or serious hazards. In this manual, a warning indicates an imminently hazardous situation which, if not avoided, could result in serious injury or death. Safety Messages Follow all standard industry procedures for servicing electrical and computer equipment when working with or around high voltage. Always shut off the power supply before touching any components. Electrical components are sensitive to electrostatic discharge. To prevent equipment damage, observe safety procedures when working with electrostatic sensitive components. WARNING! Explosion hazard. Do not connect or disconnect equipment unless power has been switched off or the area is known to be non-hazardous. Low Voltage Directive For use in Installation Category I, Pollution Degree 2. If equipment is used in a manner not specified by manufacturer, protection provided by equipment may be impaired. Notice of Trademark, Copyright and Limitations Magnetrol & Magnetrol logotype and Modulevel are registered trademarks of Magnetrol International, Incorporated. Copyright 2016 Magnetrol International, Incorporated. All rights reserved. Performance specifications are effective with date of issue and are subject to change without notice. Magnetrol reserves the right to make changes to the product described in this manual at any time without notice. MAGNETROL makes no warranty with respect to the accuracy of the information in this manual. Warranty All MAGNETROL electronic level and flow controls are warranted free of defects in materials or workmanship for eighteen months from the date of original factory shipment. If returned within the warranty period; and, upon factory inspection of the control, the cause of the claim is determined to be covered under the warranty; then, MAGNETROL will repair or replace the control at no cost to the purchaser (or owner) other than transportation. MAGNETROL shall not be liable for misapplication, labor claims, direct or consequential damage or expense arising from the installation or use of equipment. There are no other warranties expressed or implied, except special written warranties covering some MAGNETROL products. Quality Assurance The quality assurance system in place at MAGNETROL guarantees the highest level of quality throughout the company. MAGNETROL is committed to providing full customer satisfaction both in quality products and quality service. The MAGNETROL quality assurance system is registered to ISO 9001 affirming its commitment to known international quality standards providing the strongest assurance of product/service quality available.

3 Table of Contents E3 Modulevel Displacer Level Transmitter Installation, Operation and Maintenance Manual 1.0 FOUNDATION fieldbus Overview 1.1 Description Benefits Device Configuration Intrinsic Safety Link Active Scheduler (LAS) QuickStart Installation 2.1 Getting Started Equipment and Tools Configuration Information QuickStart Mounting Tank Top External Chamber QuickStart Wiring QuickStart Configuration Complete Installation 3.1 Unpacking Electrostatic Discharge (ESD) Handing Procedure Before You Begin Site Preparation Equipment and Tools Operational Considerations Mounting Tank Top Installation (E3A & E3B) External Chamber Installation (E3C, E3D, E3E, E3F) Wiring General Purpose or Non-Incendive Intrinsically Safe Explosion Proof Reference Information 4.1 Overview Universal Fieldbus Block Parameters Resource Block Modulevel Transducer Block Modulevel Transducer Block Parameters Password Parameters E3 Modulevel Configuration Parameters Offset Description User-Calibration Parameters User Calibration Procedure Factory Parameters Firmware Version Analog Input Block AI Block Parameters Local Display of Analog Input Transducer Block Output AI Out Display Screens PID Block PID Block Parameters E3 Modulevel Menu: Step by Step Procedure 5.1 Measurement Type: Level Only Diagnostic Parameters 6.1 Simulation Feature Documentation 7.1 Fieldbus Data Sheet for Individual Instrument Fieldbus Data Sheet for Multiple Devices Documentation 8.1 Description Theory of Operation Displacer/Range Spring LVDT Interface Density Troubleshooting Troubleshooting System Problems Checking the LVDT Winding Resistance Device Status Parameter in the Transducer Block FF Segment Checklist Agency Approvals FM (Factory Mutual) CSA (Canadian Standards Association) ATEX (European Directive for Explosion Protection) Agency Drawings Parts Transmitter Head Replacement Parts Mechanical Replacement Parts Recommended Spare Parts Specifications Functional Performance Level Performance Interface Level & Density Physical Model Numbers E3x for Non-Steam Service E3x for Steam Service References...58 Appendix Transducer Block Parameters...58 FOUNDATION fieldbus Configuration Data Sheet...59

4 1.0 FOUNDATION fieldbus Overview 1.1 Description Power Conditioner PC Power Supply Control Room Terminator 6234 feet (1900 meters) maximum FOUNDATION fieldbus is a digital communications system that serially interconnects devices in the field. A Fieldbus system is similar to a Distributed Control System (DCS) with two exceptions: Although a FOUNDATION fieldbus system can use the same physical wiring as an existing 4 20 ma device, Fieldbus devices are not connected point to point, but rather are multidropped and wired in parallel on a single pair of wires (referred to as a segment). FOUNDATION fieldbus is a system that allows the user to distribute control across a network. Fieldbus devices are smart and actually maintain control over the system. Unlike 4 20 ma analog installations in which the two wires carry a single variable (the varying 4 20 ma current), a digital communications scheme such as FOUNDATION fieldbus considers the two wires as a network. The network can carry many process variables as well as other information. The E3 Modulevel transmitter is a FOUNDATION fieldbus registered device that communicates with the H1 FOUNDATION fieldbus protocol operating at kbits/sec. The H1 physical layer is an approved IEC standard. An IEC61158 shielded twisted pair wire segment can be as long as 6234 feet (1900 meters) without a repeater. Up to 4 repeaters per segment can be used to extend the distance. The maximum number of devices allowed on a Terminator Fieldbus segment is 32 although this depends on the current draw of the devices on any given segment. See Figure 1. Details regarding cable specifications, grounding, termination, and other network information can be found in IEC or the wiring installation application guide AG-140 at Figure 1 typical Fieldbus installation 4

5 1.2 Benefits The benefits of FOUNDATION fieldbus can be found throughout all phases of an installation: 1. Design/Installation: Connecting multiple devices to a single pair of wires means less wire and fewer I/O equipment. Initial Engineering costs are also reduced because the Fieldbus Foundation requires interoperability, defined as the ability to operate multiple devices in the same system, regardless of manufacturer, without a loss of functionality. All FOUNDATION fieldbus devices must be tested for interoperability by the Fieldbus Foundation. Magnetrol E3 MODULEVEL FOUNDATION fieldbus device registration information can be found at 2. Operation: With control now taking place within the devices in the field, better loop performance and control are the result. A FOUNDATION fieldbus system allows for multiple variables to be brought back from each device to the control room for additional trending and reporting. 3. Maintenance: The self-diagnostics residing in the smart field devices minimizes the need to send maintenance personnel to the field. 1.3 Device Configuration Device Descriptions The function of a FOUNDATION fieldbus device is determined by the arrangement of a system of blocks defined by the Fieldbus Foundation. The types of blocks used in a typical User Application are described as follows: Resource Block describes the characteristics of the FOUNDATION fieldbus device such as the device name, manufacturer, and serial number. Function Blocks are built into the FOUNDATION fieldbus devices as needed to provide the desired control system behavior. The input and output parameters of function blocks can be linked over the Fieldbus. There can be numerous function blocks in a single User Application. Transducer Blocks contain information such as calibration parameters and sensor type. They are used to connect the sensor to the input function blocks. An important requirement of Fieldbus devices is the interoperability concept mentioned earlier. Device Description (DD) technology is used to achieve this interoperability. The DD provides extended descriptions for each object and provides pertinent information needed by the host system. 5

6 DDs are similar to the drivers that your personal computer (PC) uses to operate peripheral devices connected to it. Any Fieldbus host system can operate with a device if it has the proper DD and Common File Format (CFF) for that device. The most recent DD and CFF files can be found on the FOUNDATION fieldbus web site at fieldbus.org. 1.4 Intrinsic Safety The H1 physical layer supports Intrinsic Safety (IS) applications with bus-powered devices. To accomplish this, an IS barrier or galvanic isolator is placed between the power supply in the safe area and the device in the hazardous area. H1 also supports the Fieldbus Intrinsically Safe Concept (FISCO) model which allows more field devices in a network. The FISCO model considers the capacitance and inductance of the wiring to be distributed along its entire length. Therefore, the stored energy during a fault will be less and more devices are permitted on a pair of wires. Instead of the conservative entity model, which only allows about 90 ma of current, the FISCO model allows a maximum of 110 ma for Class II C installations and 240 ma for Class II B installations. FISCO certifying agencies have limited the maximum segment length to 1000 meters because the FISCO model does not rely on standardized ignition curves. The E3 MODULEVEL is available with entity IS, FISCO IS, FNICO non-incendive, or explosion proof approvals. 1.5 Link Active Scheduler (LAS) The default operating class of the E3 MODULEVEL with FOUNDATION fieldbus is a basic device. However, it is capable of being a Link Active Scheduler (LAS). The LAS controls all communication on a FOUNDATION fieldbus segment. It maintains the Live List of all devices on a segment, coordinates both the cyclic and acyclic timing and, at any given time, controls which device publishes data via Compel Data (CD) and Pass Token (PT). The primary LAS is usually maintained in the host system, but in the event of a failure, all associated control can be transferred to a backup LAS in a field device such as the E3 MODULEVEL. The operating class of E3 MODULEVEL can be changed from basic to LAS using a FOUNDATION fieldbus configuration tool. 6

7 2.0 QuickStart Installation 2.1 Getting Started Equipment and tools No special equipment or tools are required to install E3 MODULEVEL. The following items are recommended: Wrenches, flange gaskets and flange bolting appropriate for process connection(s) Flat-blade screwdriver Level 1 8" Allen wrench Fieldbus compatible power supply with proper termination Configuration information Some key information is needed to configure the E3 MODULEVEL transmitter. Complete the following operating parameters table before beginning configuration. display Question answer LvlUnits Lvl Ofst Proc SG ProcTemp What units of measurement will be used? What is the desired level reading when the level is at the calibrated zero reference (typically bottom of the displacer)? What is the actual SG of the process liquid at operating temperature? What is the actual operating temperature? 2.2 QuickStart Mounting NOTE: Confirm the style and process connection size/type of the E3 MODULEVEL transmitter. Ensure it matches the requirements of the installation before continuing with the QuickStart installation tank top 1. If applicable, adjust and trim the adjustable hanger cable assembly to the required length and mount it between the stem and displacer. 2. Using a level, verify that the vessel mounting flange is level in all directions within 3. 7

8 3. Position the head flange gasket on the vessel flange and gently lower the displacer into the vessel. To prevent damage to the stem/spring assembly, avoid tipping the unit or, in any way, putting lateral forces on the stem. 4. Align the flanges and ensure that the gasket is seated properly. 5. Install the flange bolts and nuts and tighten alternating nuts in a star pattern. Flange bolting torque specifications are listed on page External Chamber 1. Remove the shipping strap and wire assembly which secures the displacer in the chamber during shipment. This assembly must be removed through the bottom connection or drain. 2. Using a level, verify that the vessel mounting flanges are level in all directions within Align the MODULEVEL process connections with those on the vessel and attach accordingly, based upon the connection type. Appropriate gaskets and bolting will be required for flanged connections. Install the flange bolts and nuts and tighten alternating nuts in a star pattern. Flange bolting torque specifications are listed on page QuickStart Wiring Black (-) Green Ground Screws Protective Conductor Terminal Red (+) Figure 2 integral transmitter Wiring (+) (-) WARNING: Explosion hazard. Do not connect or disconnect equipment unless power has been switched off or the area is known to be non-hazardous. NOTE: Ensure that the electrical wiring to the E3 transmitter is complete and in compliance with all regulations and codes. 1. Remove the cover of the upper wiring compartment of the transmitter. 2. Attach a conduit fitting and mount the conduit plug in the spare opening. Pull the power supply wire through the conduit fitting. 3. Connect an earth ground to the nearest green ground screw. See Figure 2. Use a minimum 18 AWG rated up to 85 C. 4. Connect the positive supply wire to the (+) terminal and the negative supply wire to the (-) terminal. For Explosion Proof Installations, see Wiring, Section Replace the cover and tighten. 8

9 2.4 QuickStart Configuration Enter Down Up Figure 3 transmitter Keypad & display Liquid Level Displacer The E3 MODULEVEL transmitter comes configured with default values from the factory but can be reconfigured in the shop. The minimum configuration instructions required in the field follow. Use the information from the operating parameters table in Section before beginning configuration. 1. Power up the transmitter. The display changes every 5 seconds to show one of three values: Status, PV-Lvl (or PV-Ifc or PV-SG) and AI Out. 2. Remove the cover of the lower electronic compartment. 3. Use the and keys to move from one step of the configuration program to the next step, see Figure Press key. The last character in the first line of the display changes to an exclamation point (!). LvlUnits! xxx 5. Use the and keys to increase or decrease the value in the display or to scroll through the choices. 6. Press key to accept a value and move to the next step of the configuration program (the default password is 1). 7. After entering the last value, allow 10 seconds before removing power from the transmitter. ➀ Process S.G. ➁ Operating Temp. ➃ Level Offset The following two configuration entries are the minimum required for configuration (the default password is 1 from the LCD/keypad). Figure 4 tank top Mounted installation Proc SG (xxx) ProcTemp xxx Enter the actual specific gravity of the process liquid at operating temperature (N/A for Interface or Density). Enter the actual operating temperature of the process The following two parameters must be entered if the default values are not satisfactory. Liquid Level ➂ LvlUnit (select) Select the desired level units (inches, cm, m, feet). Process S.G. ➀ ➃ Lvl Ofst (xxx) Enter the desired level reading when level is at the calibrated zero reference (typically bottom of the displacer). Operating Temp. ➃ Level Offset ➁ ➂ In, cm, m, or ft. Figure 5 Chamber type installation Side-Side Process Connections 9

10 3.0 Complete Installation 3.1 Unpacking Unpack the instrument carefully. Take care not to bend the displacer stem or enclosing tube. Ensure all components have been removed from the packing material. Check all the contents against the packing slip and report any discrepancies to the factory. Before proceeding with the installation, do the following: Inspect all components for damage. Report any damage to the carrier within 24 hours. On chambered units, remove the shipping strap and wire assembly holding the displacer in place. This assembly must be removed through the bottom chamber connection before start-up. Caution: If reshipping to another location, the displacer must again be secured using the same strap and wire assembly. Check that the model number on the nameplate matches the packing slip and purchase order. Record the model and serial numbers for future reference when ordering parts. Model Number Serial Number 3.2 Electrostatic Discharge (ESD) Handling Procedure MAGNETROL electronic instruments are manufactured to the highest quality standards. These instruments use electronic components which may be damaged by static electricity present in most work environments. The following steps are recommended to reduce the risk of component failure due to electrostatic discharge. Ship and store circuit boards in anti-static bags. If an antistatic bag is not available, wrap the board in aluminum foil. Do not place boards on foam packing materials. Use a grounding wrist strap when installing and removing circuit boards. A grounded workstation is recommended. Handle circuit boards only by the edges. Do not touch components or connector pins. Ensure that all electrical connections are completely made and that none are partial or floating. Ground all equipment to a good, earth ground. 10

11 3.3 Before You Begin Site Preparation Each E3 MODULEVEL transmitter is built to match the physical specifications of the required installation. Ensure that the process connection(s) on the vessel matches the MODULEVEL process connection(s). See Mounting, Section 3.4. Ensure that the wiring between the power supply and MODULEVEL transmitter are complete and correct for the type of installation. When installing the MODULEVEL transmitter in a general purpose or hazardous area, local, state and federal regulations and guidelines must be observed. See Wiring, Section Equipment and tools No special equipment or tools are required to install the Electronic MODULEVEL. The following items are recommended: Wrenches, flange gaskets and flange bolting appropriate for process connection(s) Flat-blade screwdriver Level 1 8" Allen wrench Fieldbus compatible power supply with proper termination operational Considerations The MODULEVEL transmitter should be located for easy access for service, configuration, and monitoring. There should be sufficient headroom to allow installation and removal of the transmitter head and, in cases of tank top configuration, the displacer. Special precautions should be made to prevent exposure to corrosive atmosphere, excessive vibration, shock, or physical damage. The operating temperature range for the transmitter electronics is -40 to +176 F (-40 to +80 C). The operating temperature range for the digital display is -5 to +160 F (-20 to +70 C). Caution: Operation of all buoyancy type level devices should be done in such a way as to minimize the action of dynamic forces on the float or displacer sensing element. Good practice for reducing the likelihood of damage to the control is to equalize pressure across the device very slowly. 11

12 3.4 Mounting The E3 MODULEVEL transmitter can be mounted to a tank using a variety of configurations and process connections. Generally, either a threaded, welded or flanged connection is used with an external cage. A flanged connection is always used on a tank top model. For information about the sizes and types of connections available, see Model Numbers, Section 8.7. Ensure all mounting connections are in place on the tank and properly sized for the specific unit being installed. Compare the model on the nameplate with the product information to ensure the MODULEVEL transmitter is correct for the intended installation. If the MODULEVEL must be insulated, DO NOT insulate the transmitter head, e-tube or finned extensions. torque Specifications for Enclosing tubes and Flange Bolting Model Flange Bolting E-tube E3A, E3B E3C, E3D, E3E, E3F 150# E3C, E3D, E3E, E3F 300# E3C, E3D, E3E, E3F 600# E3C, E3D, E3E, E3F 900# E3C, E3D, E3E, E3F 1500# E3C, E3D, E3E, E3F 2500# n/a ft-lbs ft-lbs ft-lbs ft-lbs ft-lbs ft-lbs ft-lbs tank top installation (E3a & E3B) Figure 6 tank top Mounted installation Liquid Level Displacer Figure 6 illustrates a typical tank top installation. Before installing, ensure that: There is adequate headroom for the installation of the MODULEVEL head and displacer and that it has unobstructed entry into the vessel. Using a level, the mounting flange is level within 3 in all directions. If the adjustable hanger assembly (P/N ) is used, it is cut to the required length and attached to the displacer stem. NOTE: The adjustable hanger assembly is used when the top of the displacer and, therefore, the top of the measurement range must be positioned in the vessel more than 9.31" below the mounting flange. The standard hanger cable length is 8 feet. Consult factory for longer cable. 12

13 A stilling well is installed for applications where continuous agitation is present. The stilling well must be vertically level so as not to restrict displacer movement. See Figure 7 for a typical stilling well installation. The process temperature, pressure and specific gravity are within the unit s specifications for installation. See Specifications, Section 8.6. To install: 1. Position the head flange gasket on the vessel flange and gently lower the displacer into the vessel. To prevent damage to the stem/spring assembly, avoid tipping the unit or, in any way, putting lateral forces on the stem. 2. Align the flanges and ensure that the gasket is seated properly. 3. Install the flange bolts and nuts and tighten alternating nuts in a star pattern. Flange bolting torque specifications are listed on page 12. Figure 7 tank top Mounted with Stilling Well Use stilling well in case of turbluent medium Caution: All MODULEVEL units are shipped from the factory with the enclosing tube tightened and the transmitter head set screws locked to the enclosing tube. Failure to loosen the set screws prior to repositioning the supply and output connections may cause the enclosing tube to loosen, resulting in the possible leakage of the process liquid or vapor. 4. Loosen the transmitter head lock screws (socket type) and position conduit outlet in the desired direction. See Figure Retighten lock screws. NOTE: Since the transmitter head is rotatable through 360º, it is important to make certain that the controller locking screws are tight before making electrical connections. Figure 8 transmitter Head Lock Screws Always unlock for repositioning or removal of head assembly and always relock, after final positioning Size External Chamber installation (E3C, E3d, E3E & E3F) The chamber type MODULEVEL is mounted on the side of the vessel with either a side/side or side/bottom connection, as furnished. Figure 9 on page 14 illustrates a typical chamber type installation. Before installing, ensure that: There is adequate room for installation of the MODULEVEL. Using a level, the vessel mounting connections are level within 3 in all directions. The process temperature, pressure and specific gravity are within the unit s specifications for installation. See Specifications, Section 8.6. If not already done, remove the shipping strap and wire assembly holding the displacer in place in the chamber. This assembly must be removed through the bottom chamber connection or drain before start-up. 13

14 Liquid Level Figure 9 Chamber type installation Side-Side Process Connections To install: 1. Align the MODULEVEL process connections with those on the vessel and attach accordingly, based upon the connection type. Appropriate gaskets and bolting will be required for flanged connections. Install the flange bolts and nuts and tighten alternating nuts in a star pattern. Flange bolting torque specifications are listed on page 12. NOTE: It is recommended that shut-off valves be installed in each equalizing line to the chamber, along with a drain valve (refer to Figure 8). Equalizing lines should be sized at least as large as the connections provided at the chamber. 2. Make sure that the chamber is vertically level within 3 in each direction to ensure frictionless operation of the internal displacer. Caution: All MODULEVEL units are shipped from the factory with the enclosing tube tightened and the transmitter head set screws locked to the enclosing tube. Failure to loosen the set screws prior to repositioning the supply and output connections may cause the enclosing tube to loosen, resulting in the possible leakage of the process liquid or vapor. 3. Loosen the transmitter head lock screws (socket type) and position conduit outlet in the desired direction. See Figure Retighten lock screws. NOTE: Since the transmitter head is rotatable through 360º, it is important to make certain that the controller locking screws are tight before making electrical connections. 3.5 Wiring Black (-) Green Ground Screws Protective Conductor Terminal Red (+) Caution: (+) (-) FOUNDATION fieldbus E3 MODULEVEL transmitter operates at voltages of 9 32 VDC. Higher voltage will damage the transmitter. Wiring between the power supply and the E3 MODULEVEL transmitter should be made using minimum of 18 AWG shielded twisted pair instrument cable. Wiring must be suitable for temperatures up to at least +85 C. Within the transmitter enclosure, connections are made to the terminal strip and the ground connections. When installing a remote mount E3 transmitter, refer to Figures 12 & 13 for wiring connections. WARNING! Explosion hazard. Do not disconnect equipment unless power has been switched off or the area is known to be non-hazardous. Figure 10 Wiring diagram 14

15 (-) negative (+) positive Protective Conductor Terminal Figure 11 G.P./i.S./Explosion Proof Model White Black Green Black Red Black Figure 12 integral & Remote terminal Boards + Power Supply 24 VDC General Purpose or non-incendive (Cl i, div. 2) A general purpose installation does not have flammable media present. Areas rated non-incendive (Cl I, Div. 2) have flammable media present only under abnormal conditions. No special electrical connections are required so standard installation methods may be followed. To install General Purpose or Non-Incendive wiring: 1. Remove the cover to the wiring compartment of the transmitter. Install the conduit plug in the unused opening. Use PTFE tape/sealant to ensure a liquid-tight connection. 2. Install a conduit fitting and pull the supply wires. 3. Connect shield to an earth ground at power supply. 4. Connect an earth ground wire to the nearest green ground screw. Use a minimum 18 AWG rated up to 85 C. 5. Connect the positive supply wire to the (+) terminal and the negative supply wire to the (-) terminal. 6. Replace the cover to the wiring compartment of the transmitter. To install Remote Mount wiring: 1. Install conduit from the remote mounted head to the integral conduit connection of the E3 transmitter (refer to local plant or facility procedures). 2. Remove the cover of the remote transmitter, terminal board housing and of the integral terminal board housing. 3. Connect one end of the six conductor cable (P/N xxx or xxx) to the integral terminal block and the other end to the terminal block within the remote terminal board housing. Be sure to match the six discrete numbered wires with the numbers on each terminal block. See Figures 12 & Connect shield to an earth ground at the power supply. 5. Connect an earth ground wire to the nearest green ground screw per local electrical code (not shown in illustration). 6. Connect the positive supply wire to the (+) terminal and the negative supply wire to the (-) terminal. 7. Replace the covers to the wiring compartment of the transmitter and to both terminal board housings. Ensure that all covers are completely tightened down before applying power intrinsically Safe An intrinsically safe (IS) installation potentially has flammable media present. An approved IS barrier must be installed in the non-hazardous (safe) area. Consult factory for agency drawing. 15

16 Integral Wiring & LVDT Housings Conduit seal within 18" of this housing entry for explosion proof installation Remote Wiring & Transmitter Housings White Black Green Black Red Black Integral Terminal Board White Black Green Black Red Black Remote Terminal Board Figure 13 Remote Mount Wiring Connections To install Intrinsically Safe wiring: 1. Make sure the IS barrier is properly installed in the safe area (refer to local plant or facility procedures). Complete the wiring from the barrier to the E3 transmitter. 2. After IS barrier installation, follow General Purpose and Non-incendive wiring procedure on page Explosion Proof Explosion Proof (XP) is a method of designing equipment for installation in hazardous areas. A hazardous location is an area in which flammable gases or vapors are, or may be, present in the air in quantities sufficient to produce explosive or ignitable mixtures. The wiring for the transmitter must be contained in Explosion Proof conduit extending into the safe area. To install Explosion Proof wiring Integral mount: Due to the specialized design of the Integral E3 transmitter, no Explosion Proof conduit fitting (EY seal) is required within 18" of the transmitter. An Explosion Proof conduit fitting (EY seal) is required between the hazardous and safe areas. See Agency Approvals, Section Install Explosion Proof conduit from the safe area to the conduit connection of the E3 transmitter (refer to local plant or facility procedures). 2. Remove the cover to the wiring compartment of the transmitter. 3. Connect shield to an earth ground at the power supply. 4. Connect an Earth ground wire to the nearest green ground screw per local electrical code. Use a minimum 18 AWG rated up to 85 C. 5. Connect the positive supply wire to the (+) terminal and the negative supply wire to the (-) terminal. 6. Replace the cover to the wiring compartment of the transmitter before applying power. Caution: Instrument and conduit junction box covers must be in place and tightly sealed at all times during operation. To install Explosion Proof wiring Remote mount: 1. Install Explosion Proof conduit from the remote mounted E3 transmitter head to the integrally mounted terminal housing at the LVDT. An Explosion Proof conduit fitting (EY seal) is required within 18" of the remote mounted transmitter head wiring housing (see figure 13). Follow steps 2 through 7 of Remote Mount wiring procedure on page

17 4.0 Function Blocks 4.1 Overview The E3 MODULEVEL Liquid Level Displacer Transmitter operates on the Archemedes principle of buoyancy force. Refer to Bulletin for more detailed information on the MODULEVEL transmitter. The E3 MODULEVEL is a liquid level transmitter with four FOUNDATION fieldbus Blocks (one Resource Block, one Transducer Block, one Analog Input Function block, and one PID Function block. The idea of Function Blocks, which a user can customize for a particular application, is a key concept of Fieldbus topology. Function Blocks consist of an algorithm, inputs and outputs, and a user-defined name. The TRANSDUCER block output is available to the network through the ANALOG INPUT block. The ANALOG INPUT block (AI) takes the TRANSDUCER block level or density value and makes it available as an analog value to other function blocks. The AI block has scaling conversion, filtering, and alarm functions universal Fieldbus Block Parameters The following are general descriptions of the parameters common to all blocks. Additional information for a given parameter is described later in that specific block section. ST_REV (static data revision): a read only parameter that gives the revision level of the static data associated with the block. This parameter will be incremented each time a static parameter attribute value is written and is a vehicle for tracking changes in static parameter attributes. TAG_DESC (tag descriptor): a user assigned parameter that describes the intended application of any given block. STRATEGY: a user assigned parameter that identifies groupings of blocks associated with a given network connection or control scheme. ALERT_KEY: a user assigned parameter which may be used in sorting alarms or events generated by a block. MODE_BLK: a structured parameter composed of the actual mode, the target mode, the permitted mode(s), and the normal mode of operation of a block. The actual mode is set by the block during its execution to reflect the mode used during execution. The target mode may be set and monitored through the mode parameter. 17

18 The permitted modes are listed for each block. The block must be in an automatic mode for normal operation. NOTE: The MODE_BLK target parameter must be OOS (out of service) to change configuration and calibration parameters in that function block (when in OOS, the normal algorithm is no longer executed and any outstanding alarms are cleared). All blocks must be in an operating mode for the device to operate. This requires the Resource Block to be in AUTO and the Transducer Block to be in AUTO before the Function Blocks can be placed in a mode other than OOS (out of service). BLOCK_ERR: a parameter that reflects the error status of hardware or software components associated with, and directly affecting, the correct operation of a block. NOTE: A BLOCK_ERR of Simulation in the Resource Block does not mean simulation is active it merely indicates that the simulation enabling hardware jumper is installed. 4.2 Resource Block The RESOURCE block contains data specific to the E3 MODULEVEL transmitter, along with some information about the firmware. NOTE: The Resource Block has no control function. MODE_BLK: Must be in AUTO in order for the remaining blocks in the transmitter to operate. NOTE: A Resource Block in out of service will stop all function block execution in the transmitter. RS_STATE (Resource State): identifies the state of the RESOURCE block state machine. Under normal operating conditions, it should be On-Line. DD_RESOURCE: a string identifying the tag of the resource that contains the Device Description for this device. MANUFAC_ID: contains the MAGNETROL International, Incorporated FOUNDATION fieldbus manufacturer s ID number, which is 0x DEV_TYPE: the model number of the E3 MODULEVEL transmitter (0x0003). It is used by interface devices to locate the Device Descriptor (DD) file for this product. DEV_REV: contains the firmware revision of the E3 MODULEVEL transmitter. It is used by interface devices to correctly select the associated DD. 18

19 DD_REV: contains the revision of the DD associated with the version of firmware in the E3 MODULEVEL transmitter. It is used by interface devices to correctly select the associated DD. RESTART: Default and Processor selections are available. Default will reset the Model E3 to the default block configuration. NOTE: RESTART DEFAULT will not reset parameters to their default values in the custom Transducer Block. FEATURES: a list of the features available in the transmitter. The Model E3 features include Reports, and Software Write Locking. FEATURES_SEL: allows the user to turn Features on or off. CYCLE_TYPE: identifies the block execution methods that are available. CYCLE_SEL: allows the user to select the block execution method. MIN_CYCLE_T: the time duration of the shortest cycle interval. It puts a lower limit on the scheduling of the resource. NV_CYCLE_T: the minimum time interval between copies of non-volatile (NV) parameters to NV memory. NV memory is only updated if there has been a significant change in the dynamic value and the last value saved will be available for the restart procedure. A value of 0 means it will never be automatically copied. Entries made by human interface devices to NV parameters are copied to non-volatile memory at the time of entry. NOTE: After completing a large copy, allow several minutes before removing power from the E3 MODULEVEL transmitter to ensure that all data has been saved. FREE_SPACE: shows the amount of available memory for further configuration. The value is zero percent in a preconfigured device. FREE_TIME: the amount of the block processing time that is free to process additional blocks. SHED_RCAS: the time duration at which to give up computer writes to function block RCas locations. Shed from RCas will never happen when SHED_RCAS = 0. SHED_ROUT: the time duration at which to give up computer writes to function block ROut locations. Shed from ROut will never happen when SHED_ROUT = 0. 19

20 FAULT_STATE, SET_FSTATE, CLR_FSTATE: these only apply to output function blocks. (The E3 MODULEVEL has no output function blocks). MAX_NOTIFY: the maximum number of alert reports that the transmitter can send without getting a confirmation. The user can set the number low, to control alert flooding, by adjusting the LIM_NOTIFY parameter value. LIM_NOTIFY: the maximum numbers of unconfirmed alert notify messages allowed. No alerts are reported if set to zero. CONFIRM_TIME: the time that the transmitter will wait for confirmation of receipt of a report before trying again. Retry will not occur if CONFIRM_TIME = 0. WRITE_LOCK: When set to LOCKED, will prevent any external change to the static or non-volatile data base in the Function Block Application of the transmitter. Block connections and calculation results will proceed normally, but the configuration will be locked. UPDATE_EVT (Update Event): is an alert generated by a write to the static data in the block. BLOCK_ALM (Block Alarm): is used for configuration, hardware, connection, or system problems in the block. The cause of any specific alert is entered in the subcode field. The first alert to become active will set the Active status in the Status attribute. As soon as the Unreported status is cleared by the alert reporting task, another block alert may be reported without clearing the Active status, if the subcode has changed. ALARM_SUM (Alarm Summary): contains the current alert status, the unacknowledged states, the unreported states, and the disabled states of the alarms associated with the block. ACK_OPTION (Acknowledge Option): selects whether alarms associated with the block will be automatically acknowledged. WRITE_PRI (Write Priority): the priority of the alarm generated by clearing the write lock. WRITE ALM (Write Alarm): the alert generated if the write lock parameter is cleared. ITK_VER (ITK Version): contains the version of the Interoperability Test Kit (ITK) used by the Fieldbus Foundation during their interoperability testing. 20

21 4.3 Modulevel Transducer Block The MODULEVEL TRANSDUCER block is a custom block containing parameters that support the E3 MODULEVEL level transmitter. It contains the model attributes, diagnostics, and calibration data, and outputs a measured value with status information. The TRANSDUCER block parameters are grouped in a useful configuration. There are both read-only parameters and read-write parameters within the TRANSDUCER block. The read-only parameters report the block status and operation modes. The read-write parameters affect the function block basic operation, level transmitter operation, and calibration. the transducer Block will automatically be changed to out of Service when the local interface (keypad) is used to change a parameter online Modulevel transducer Block Parameters The first six parameters in the MODULEVEL TRANSDUCER block are the universal parameters discussed in section The universal parameters are followed by these additional required parameters: UPDATE_EVT (Update Event): an alert generated by a write to the static data in the TRANSDUCER block. Another important parameter found later in the TRANS- DUCER block list is DEVICE_STATUS, which displays the status of the device. If more than one message exists, then the messages are displayed in priority order. Refer to Section 8.3.3, Status Messages. If DEVICE_STATUS indicates a problem, refer to Section 8.3, Troubleshooting. For a complete list of transducer Block Parameters, refer to table in the appendix Password Parameters To change a parameter at the local user interface, a value matching the user password must be entered (Default=1). If the user password is entered, the instrument is in the user mode. After 5 minutes with no keypad activity, the entered password expires. Factory password is for use by trained factory personnel only. From the network, the instrument always behaves as if it is in the user mode by default. In other words, it is not necessary to enter the user password in order to write parameters from the network. 21

22 Process S.G. Operating Temp. ➀ ➃ Level Offset ➁ Liquid Level Figure 14 Chamber type installation Side-Side Process Connections ➀ Process S.G. ➁ Operating Temp. Liquid Level Figure 15 top Mount installation Displacer ➂ Level Offset ➂ In, cm, m, or ft E3 Modulevel Configuration Parameters The following parameters within the MODULEVEL Transducer Block are required to configure each E3 MODULEVEL. LEVEL_UNITS: Select the units in which level parameters are displayed (cm, in, feet, meters). (➃ in figure 14) PROCESS_SG: Enter the specific gravity of the process liquid at operating conditions. ( in figures 14 & 15) PROCESS_TEMPERATURE: Enter the process operating temperature. ( in figures 14 & 15) LEVEL_OFFSET: Enter the desired level output at the zero reference (bottom of displacer or centerline of bottom-side process connection). (➂ in figures 14 & 15) offset description The parameter referred to as LEVEL_OFFSET in the Transducer Block is the desired level reading when the liquid is at the zero reference point of the E3 MODULEVEL. On the top mounted models E3A and E3B, the zero reference is the bottom of the displacer (not including the hook). On a side-bottom mounted models E3C and E3D, it is the length of the level range below the centerline of the upperside process connection. On side-side mounted models E3E and E3F, the zero reference is the centerline of the bottom-side process connection. Unit is shipped from factory with Level Offset = 0. Example: Application of an external cage model E3E with a 48" level range is mounted with the centerline of the bottom-side process connection 12" from the bottom of the vessel. 0% point shall be at the bottom of the vessel and 100% at the length of the level range above the bottom of the vessel. Level Offset = 12" must be entered into the E3 menu. See Figure User-Calibration Parameters user Calibration Procedure One of the main advantages of the E3 MODULEVEL transmitter is that the device does not need to be calibrated in the field. Every E3 MODULEVEL transmitter is shipped from the factory precisely calibrated, requiring only configuration by the user in the field. On the other hand, part of the advantage of FOUNDATION fieldbus is to provide the ability to monitor changes and adjustments to a transmitter. For minor calibration adjustments to the measured value, trim parameters are available. 22

23 Should the E3 require replacement of any parts in the field, a user calibration must be performed after changing out any of the following original parts: Bezel assembly, LVDT assembly, range spring, stem assembly, or displacer. The following procedure should be followed when performing a user calibration in the field. NOTE: For user calibrations, the factory calibration parameters will not be incorporated into the level measurement. 1. Move liquid level on displacer to desired low level point. 2. Using the keypad and LCD display, scroll down to DispFact 3. Press until Yes is, to access data entry mode, then displayed and again. The factory menu is now accessible. 4. Scroll down to CalSelct. 5. Press, then until User is displayed and 6. Scroll to User Cal Menu and press again.. 7. Scroll down to SnrCalLo. 8. Press, then and simultaneously and again. The current sensor output has been captured for the low level point. 9. Scroll down to LvlCalLo. The default value is If a different level value is desired at this point, press, use the and arrows to choose the desired value and press again. 10. Move the liquid level on displacer to the desired high level point. 11. Scroll to SnrCalHi. 12. Press, then and simultaneously and again. The current sensor output has been captured for the high level point. 13. Scroll down to LvlCalHi. The default value is the displacer length. If a different level value is desired at this point, press, use the and keys to choose the desired value and press again. 14. The user calibration is complete. NOTE: The original factory calibration settings are restored when FACTORY is selected for Calibration_Select parameter. it is highly recommended that factory calibration be used for optimum performance E3 Modulevel Displacer Level Transmitter - FOUNDATION fieldbus 23

24 4.4.2 Factory Parameters The factory-adjustable calibrated parameters are found in the factory calibration menu. The following parameters are read-only and are available for troubleshooting and diagnostics. LVDT %: current sensor output ADJUSTED_SENSOR_LO: low sensor calibration point which may be adjusted for process SG and/or temperature. ADJUSTED_SENSOR_HI: high sensor calibration point which may be adjusted for process SG and/or temperature. CONVERSION_FACTOR: the slope of the factory-set calibration line, based on the selected calibration. SCALE_OFFSET: the intercept of the calibration line Firmware Version The last parameter in the TRANSDUCER block gives the firmware version of the transmitter. FIRMWARE_VERSION: displays the version of the firmware. NOTE: The user should compare the DD file and revision number of the device with the HOST system to ensure they are at the same revision level. 4.5 Analog Input Block The ANALOG INPUT (AI) block takes the manufacturer s input data and makes it available to other function blocks at its output. Since only one measured value is available depending on the configuration of the unit, only one channel selection is defined in the AI Function Block. The channel will be identified as Primary Value, and will also be defined as the default Channel ai Block Parameters PV: Either the primary analog value for use in executing the function, or a process value associated with it. OUT: The primary analog value calculated as a result of executing the function block. SIMULATE: Allows the transducer analog input or output to the block to be manually supplied when simulate is enabled. When simulate is disabled, the simulate value and status track the actual value and status. 24

25 XD_SCALE: The high and low scale values, engineering units code, and number of digits to the right of the decimal point used with the value obtained from the transducer for a specified channel. OUT_SCALE: The high and low scale values, engineering units code, and number of digits to the right of the decimal point to be used in displaying the OUT parameter. GRANT_DENY: Options for controlling access of host computers and local control panels to operating, tuning, and alarm parameters of the block. IO_OPTS: Option which the user may select to alter input and output block processing. STATUS_OPTS: Options which the user may select in the block processing of status. CHANNEL: The number of the logical hardware channel that is connected to this I/O block. This information defines the transducer to be used going to or from the physical world. L_TYPE: Determines if the values passed by the transducer block to the AI block may be used directly (Direct) or if the value is in different units and must be converted linearly (Indirect), or with square root (Ind Sqr Root), using the input range defined for the transducer and the associated output range. LOW_CUT: Limit used in square root processing. PV_FTIME: Time constant of a single exponential filter for the PV, in seconds. FIELD_VAL: Raw value of the field device in % of PV range, with a status reflecting the Transducer condition, before signal characterization (L_TYPE) or filtering (PV_FTIME). UPDATE_EVT: This alert is generated by any change to the static data. BLOCK_ALM: The block alarm is used for all configuration, hardware, connection failure or system problems in the block. ALARM_SUM: The current alert status, unacknowledged states, unreported states, and disabled states of the alarms associated with the function block. ACK_OPTION: Selection of whether alarms associated with the function block will be automatically acknowledged. ALARM_HYS: Amount the PV must return within the alarm limits before the alarm condition clears. Alarm hysteresis expressed as a percent of the span of the PV. 25