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Emerson Rosemount 3490 Series, Reference Manual

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3.4.6

Connecting HART transmitters to the Rosemount 3492

The Rosemount 3492 Control Unit takes the input from two HART transmitters and
calculates the sum, difference, or product of the two inputs.

Note

The transmitters must be HART compatible for the Rosemount 3492 to operate correctly.

Connection of the two transmitters to the Rosemount 3492 can be done by:

•

Cabling both transmitter cables wired directly into Current Input terminals on the
Rosemount 3492 (

Figure 3-9

), or

•

Using a single cable wired directly into Current Input terminals with the two
transmitters connected to this single cable via a suitable junction box (

Figure 3-9

).

Figure 3-9: Connecting Two HART transmitters

1

2

3

1

2

3

A

B

A

B

C

A. HART transmitter Tx1

B. HART transmitter Tx2

C. Junction box

Connect the two HART transmitters

For correct operation, each HART transmitter must be changed to “multi-drop” mode to
allow them to communicate with the Rosemount 3492 Control Unit through a common
connection. Each HART transmitter must therefore have their poll address changed from
the factory default address of “0” to a unique address.

The Rosemount 3492 Control Unit is used to achieve this address change, but requires the
transmitters to be connected in a specific sequence as detailed here:

Procedure

1.

 With the power supply turned off, connect the first HART transmitter to the

Current Input terminals on the control unit.

2. Check the voltage-selector-switch is set for the correct voltage on the mains-

powered control unit (115 or 230 Vac), and then turn the power on.

Installation

Reference Manual

January 2021

00809-0100-4841

30

Emerson.com/Rosemount

Summary of Contents for Rosemount 3490 Series

Page 1: ...Reference Manual 00809 0100 4841 Rev CA January 2021 Rosemount 3490 Series 4 20 mA HART Compatible Controller ...

Page 2: ...ed operated and maintained by suitably qualified personnel only observing any national and local requirements that may apply Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Explosions could result in death or serious injury Please review the approvals section of this reference manual for any restrictions associated with an ins...

Page 3: ...nuclear qualified applications Using non nuclear qualified products in applications that require nuclear qualified hardware or products may cause inaccurate readings For information on Rosemount nuclear qualified products contact your local Emerson Sales Representative 3 ...

Page 4: ...4 ...

Page 5: ... 3 Programming using the front panel 44 4 4 Programming of the control unit 51 Chapter 5 Service and troubleshooting 135 5 1 Safety messages 135 5 2 Servicing the control unit 135 5 3 Health checking the control unit 139 5 4 Service support 145 Appendix A Specifications and reference data 147 A 1 General 147 A 2 Display 147 A 3 Electrical 147 A 4 Mechanical 150 A 5 Environment 151 A 6 Dimensional ...

Page 6: ...C Menus and parameter 165 Appendix D Additional features 181 D 1 Restoring the factory defaults 181 D 2 Advanced parameter access 181 Appendix E Support for HART Transmitters 185 E 1 Overview 185 E 2 Fully supported HART transmitters 185 E 3 Generic support for HART transmitters 185 Contents Reference Manual January 2021 00809 0100 4841 6 Emerson com Rosemount ...

Page 7: ...roduct certifications contains European directive information hazardous locations certifications and approval drawings Menus and parameter contains full menu maps for the control unit and generic HART transmitters Additional features contains instructions for restoring the factory default settings and for using the advanced menu for accessing parameter screens quickly Support for HART Transmitters...

Page 8: ...Introduction Reference Manual January 2021 00809 0100 4841 8 Emerson com Rosemount ...

Page 9: ...ersion B Wall mount NEMA 4X version C Panel mount version 2 1 2 4 20 mA HART transmitter input options 4 20 mA HART transmitter input options The Rosemount 3491 Standard Control Unit and the Rosemount 3493 Logging Control Unit accepts one 4 20mA or HART transmitter input The Rosemount 3492 Differential Control Unit accepts two HART transmitter inputs Note The Rosemount 3490 Series is designed for ...

Page 10: ...accepting contact closure signals The isolated 4 20 mA signal output from the control unit is driven by a Primary Process Value PV e g level Figure 2 2 Typical Application F A B C G 20mA 4mA E E D D A Rosemount 3100 Series Transmitter B Rosemount 3490 Series Control Unit C 4 20 mA signal output D Relay E Pump F Bottom reference G 4 20 mA and HART signal 2 2 Control unit functions 2 2 1 Standard fu...

Page 11: ...ital input ports for accepting contact closure signals to override control unit functions HART transmitter interrogation and programming Any HART transmitter can be connected The control unit recognizes the transmitter as an unknown instrument but supports the Universal and Common Practice HART commands When a Rosemount 3100 Series Transmitter is connected the control unit recognizes the transmitt...

Page 12: ... button is for moving upwards one line At other times this button is for scrolling through a list of alphanumeric characters or a list of options When navigating the menu system the down arrow button is for moving downwards one line At other times this button is for scrolling through a list of alphanumeric characters or a list of options The left arrow button is for moving left e g to another char...

Page 13: ...play typically features a digital clock a measured variable with display units and status icons There are some display differences between control units On the Rosemount 3491 and 3492 a bar graph indicates the 4 20 mA output signal The Rosemount 3493 display can be changed to show the bar graph On the Rosemount 3492 an extra icon on the first line and indicates if one or two HART transmitters conn...

Page 14: ... Tx2 H HART transmitter communicating 1 Tx1 2 Tx2 I Relay RL status O De energized Energized A Alarm S Sampler T Totalizer J Totalizer 1 K Totalizer 2 daily total Restore the full PV display After a period of keypad inactivity the display automatically changes to the Large PV Display This shows only the control unit PV and display units but in a larger character size to facilitate easier viewing P...

Page 15: ...lay Views 1 572 m 1 572 m 12 47 1 A B A Large PV Display B Full PV Display Related information Display configuration options Reference Manual Control unit overview 00809 0100 4841 January 2021 Emerson com Rosemount 15 ...

Page 16: ...Control unit overview Reference Manual January 2021 00809 0100 4841 16 Emerson com Rosemount ...

Page 17: ... may impair the protection provided by the equipment Explosions could result in death or serious injury Please review the approvals section of this reference manual for any restrictions associated with an installation Electrical shock could cause death or serious injury If the control unit is installed in a high voltage environment and a fault condition or installation error occurs high voltage ma...

Page 18: ...nd point For a wall mount control unit it is recommended that Terminal 30 is connected to a high integrity earth ground point 7 A mains powered control unit must not be connected to a supply exceeding 250 V r m s or dc or to apparatus containing a source of voltage exceeding 250 V r m s or dc 8 A direct current dc powered control unit must not be connected to a supply exceeding 30 Vdc or apparatus...

Page 19: ...The control unit requires at least 6 5 in 165 mm clearance behind the mounting panel to avoid cable fouling After mounting the control unit all wiring is made at the rear of the unit using the two part terminal blocks provided A pre wired data download socket suitable for front panel mounting is provided on the Rosemount 3493 Control Unit Mount the control unit on a panel with thickness 1 5 to 10 ...

Page 20: ...ld be capable of supporting four times this weight It is not necessary or advisable to remove the upper part of the unit housing that contains the LCD display and keypad There are no user serviceable parts inside The control unit must not be modified in any way 3 2 4 Installation guidelines for the NEMA 4X rated wall mount version Figure 3 3 NEMA 4X rated Wall Mount This housing is rated NEMA 4X I...

Page 21: ...nds and connection to the control unit are in accordance with the local or national standards To maintain the type 4X rating of the enclosure type 4X connections must be used 3 3 Mounting the control unit 3 3 1 Mounting the panel version Procedure 1 Unpack the two screw clips provided 2 Identify the lugs protrusions in the recesses on each side of the control unit Ignore the recesses on the top an...

Page 22: ... screwdriver to clamp the control unit against the panel Postrequisites Make the electrical connections Related information Installation guidelines for the panel mount version Making electrical connections on panel mount units 3 3 2 Mounting the IP rated wall mount version Procedure 1 Mount the unit on a suitable wall or structure using the fixing points 2 Make the electrical connections Related i...

Page 23: ... Ensure the wiring insulation is suitable for the voltage temperature and environment of the installation Drill holes in the base of the NEMA 4X rated control unit for fitting cable glands Ensure suitable cable glands or conduit connections are used when wiring to the control unit to maintain enclosure integrity Never remove or modify the mechanical barriers separating the terminal area from the m...

Page 24: ...nsulation should be stripped back in 7 mm Figure 3 5 Connection Terminals Layout for Mains Powered Wall Mount Unit The dc powered unit has a slightly different layout terminals 31 and 32 replace terminals 28 and 29 Transmitter connections are made on the left side of the terminals enclosure Connecting the intrinsically safe earth ground terminal 30 to a high integrity earth ground point is recomme...

Page 25: ...ntrol Unit has a data download socket factory pre fitted in one of these cable entry positions Two cable glands rated IP65 and suitable for cable with outside diameter 4 to 7 mm are supplied for use with the mains supply and transmitter cable M20 blanking plugs are supplied for the other three cable entry positions All glands and blanking plugs are supplied in a plastic bag The installer must fit ...

Page 26: ...nit using the two part plug socket terminal connectors provided Figure 3 6 shows the rear panel Note The plug socket terminal connectors on the panel mount unit are polarized keyed to prevent inter changeability and incorrect connection Figure 3 6 Connection Terminals Layout Mains powered Panel mount Unit The dc powered control unit has a slightly different layout terminals 31 and 32 replace termi...

Page 27: ... unconnected at the transmitter end unless there is a terminal specifically provided for this purpose Cable runs should be separate from any high voltage or mains cables to avoid crosstalk or interference Connect terminal 30 intrinsically safe earth ground to a high integrity earth ground point if the transmitter connected to terminals 1 and 2 is in a hazardous area This is a special condition for...

Page 28: ... a cable with a cross sectional area greater than 4 mm2 and a resistance of less than 1 ohm Related information Transmitter connections and cabling 3 4 5 Transmitter connections and cabling Connection of a transmitter to the control unit does not confer intrinsic safety on the transmitter It is the responsibility of the user to ensure any transmitter installed in a hazardous area is suitable for u...

Page 29: ... avoid crosstalk or interference Multi core cable may be used if the other cores carry only low voltage 24 Vdc nominal signals and each pair of cores is individually screened shielded Loop powered transmitters must be connected to terminals 1 2 and 3 on the control unit see Figure 3 7 Figure 3 7 Loop powered Transmitter Connections 1 2 3 A 24 V IIN B A Control unit B Transmitter The control unit s...

Page 30: ... transmitter Tx1 B HART transmitter Tx2 C Junction box Connect the two HART transmitters For correct operation each HART transmitter must be changed to multi drop mode to allow them to communicate with the Rosemount 3492 Control Unit through a common connection Each HART transmitter must therefore have their poll address changed from the factory default address of 0 to a unique address The Rosemou...

Page 31: ...hannel Source is set for a digital HART input 5 Turn the power supply off and connect the second HART transmitter such that both HART transmitters are connected at the same time 6 Turn the power supply on 7 The control unit searches for and detects the two connected HART transmitters After the second HART transmitter is found the control unit automatically changes the Transmitter Poll Address from...

Page 32: ...connections The Current Output may be connected in internally powered or loop powered mode as shown in Figure 3 10 and Figure 3 11 In loop powered mode an external power source is required A minimum of 2 5 Vdc is required across terminals 7 and 8 for correct operation The voltage must not exceed 30 Vdc Figure 3 10 Internally powered 7 8 9 0V Io 24V A A Load Figure 3 11 Loop powered 7 8 9 0V Io 24V...

Page 33: ... with a data download socket ready to be fitted to a panel which then needs to be wired to terminals 4 5 and 6 on the rear of the control unit When there is data to be downloaded using Rosemount LogView or other software connect the RS232 data download cable supplied with the socket Fitting the RS232 data download socket to a panel The panel mountable Rosemount 3493 Control Unit is supplied with a...

Page 34: ... supplied mini B nut to secure the socket to the panel 4 Wire the socket flying lead to terminals 4 5 and 6 panel mount unit A 4 Rx white B 5 Tx red C 6 0V black Installation Reference Manual January 2021 00809 0100 4841 34 Emerson com Rosemount ...

Page 35: ...the RS232 data download cable See the Rosemount 3493 LogView Reference Manual for further information on downloading logged data Reference Manual Installation 00809 0100 4841 January 2021 Emerson com Rosemount 35 ...

Page 36: ...Installation Reference Manual January 2021 00809 0100 4841 36 Emerson com Rosemount ...

Page 37: ...ter Please Wait Re connecting to Digital Transmitter Please Wait Re connecting to Digital Transmitter Please Wait A B C A Start of search B After 3 seconds C After 15 seconds A HART transmitter with the factory default polling address of 0 is found after 15 seconds When found by the controller it is designated Tx1 Transmitter 1 and assigned to Channel 1 However if the polling address is in the ran...

Page 38: ...ount 3492 and advanced users only Edit the transmitter bottom reference When an unconfigured Rosemount 3100 Series Level Transmitter is being used for the first time a prompt appears asking for the transmitter bottom reference This value automatically sets the 4 20 mA output span of the transmitter If commissioning the system now edit and save a new transmitter bottom reference or keep save the ex...

Page 39: ... Use the arrow buttons to edit the value and then press the red enter button Example The 6 500 m has been used here as an example new bottom reference Enter the value that is required for your level measurement to edit Bottom Reference 06 500 m 5 ESC Back Save 4 Press the red enter button to save Save new Bottom Reference 06 500 m ESC No Yes 5 Do one of the following Bottom Reference saved Setuo c...

Page 40: ... to connect the two HART transmitters in the correct sequence After both HART transmitters are connected the top left corner shows communications with both transmitters by alternating 1 and 2 next to the digital communications icon The factory default configuration shows the reading from the first connected transmitter Tx1 This configuration can be changed to show the sum difference or product of ...

Page 41: ...el The highlighted and blinking text indicates what menu option will be selected if the red enter button was pressed now The symbol on the display indicates there are further menu options available accessible by using the down arrow button An symbol indicates there are further menu options available accessible by using the up arrow button The MAIN MENU sits above a series of sub menus which lead t...

Page 42: ... application C Selecting Tx1 leads to the SETUP menu for HART transmitter Tx1 operations and similarly for Tx2 on the Rosemount 3492 The Transmitter Bottom Reference for Tx1 and similarly for Tx2 can be changed here D Selecting Controller leads to menus for viewing live readings and diagnostic information for control unit E Selecting Tx1 leads to menus for viewing live readings and diagnostic info...

Page 43: ...l unit controller or a found HART transmitter If there are no HART transmitters connected Step 3 results in the SETUP menu for the control unit appearing straight away Skip to Step 5 4 Press the red enter button to select the highlighted menu option Controller The control unit SETUP menu now appears with menu options APPLICATION DISPLAY and OUTPUT visible 5 Use the down arrow button to highlight O...

Page 44: ...ART based devices Related information Menus and parameter Support for HART Transmitters 4 3 1 Parameter basics The control unit has menu based parameters for programming setting up for an application adjusting default settings etc and for viewing information Parameters are populated throughout the menu system They are grouped in sub menus which are organized for intuitive programming Each paramete...

Page 45: ...4 In View Mode the Esc button is used to leave quit the parameter screen The SETTINGS menu then re appears as seen before selecting the parameter 2 To enter Edit Mode press the red enter button Up Range Val P401 Esc Quit Edit 12 000 m A appears to show this positive sign can be changed to be a negative sign The up arrow or down arrow cycles between and Also note that on display line 4 Edit has cha...

Page 46: ...scroll down through the numbers and decimal point Esc Quit Save 62 000 m Up Range Val P401 Esc Quit Save 12 000 m Up Range Val P401 c Press the right arrow button once to highlight the 2 Esc Quit Save 62 000 m Up Range Val P401 Esc Quit Save Up Range Val P401 62 000 m d Press the down arrow button three times to change the 2 to a decimal point Esc Quit Save Up Range Val P401 62 000 m Esc Quit Save...

Page 47: ...been used to edit 6 500 Esc Quit Save Up Range Val P401 6 5000 m Esc Quit Save Up Range Val P401 6 5000 m 4 Press the red enter button to save the 6 500 and return to View Mode Esc Quit Edit Up Range Val P401 6 5000 m Note that on display line 4 Save has changed back to Edit Parameter has returned to View Mode 5 Press the Esc button to return to the SETTINGS menu Related information Enter the menu...

Page 48: ...g any parameter screen it is in View Mode Help with what can be done next is on display line 4 In View Mode the Esc button is used to leave quit the parameter screen The SETTINGS menu then re appears as seen before selecting the parameter 2 To enter Edit Mode press the red enter button Date P730 30 01 14dmy Esc Quit Edit Date P730 Esc Quit Save 30 01 14dmy The 3 is highlighted to show this digit c...

Page 49: ...ow can be used to cycle backwards through the digits and decimal point Date P730 Esc Quit Save 31 01 14dmy Date P730 Esc Quit Save 30 01 14dmy 4 Press the red enter button to save the new date and return to View Mode Date P730 Esc Quit Edit 31 01 14dmy Date P730 Esc Quit Save 31 01 14dmy Note that on display line 4 Save has changed back to Edit 5 Press the Esc button to return to the SETTINGS menu...

Page 50: ...ton to display the MAIN MENU screen 2 Press the down arrow button three times until ADVANCED is highlighted and blinking Figure 4 5 Navigating to ADVANCED Menu MAIN MENU Run App MONITOR ADVANCED ADVANCED Dxxx Pxxx 3 Select the red enter button once If square brackets are used in the notation e g MAIN MENU SETUP CONTROL UNIT it indicates that the bracketed menu does not appear in all circumstances ...

Page 51: ...r P111 on the control unit must be set for a 4 20 mA input Level and volume measurement duties are not available on the Rosemount 3493 Logging Control Unit 3 Optional changes after using the App Wizard Change system settings Change transmitter input channel settings advanced users Change application settings advanced users Change the digital input settings Change output settings Set up other featu...

Page 52: ...he Program screen appears automatically if an attempt is made to edit a parameter in Run App mode A security PIN can be set up to restrict this mode change Program An open padlock icon indicates the control unit is presently in the Program mode In this mode the unit can be programmed The Current Output and all Relay Outputs are frozen unless allocated to totalizing and sampler duties Fault relays ...

Page 53: ...witching to Program Mode Program Yes Esc No 1 MAIN MENU Run App SETUP MONITOR Program 1 MAIN MENU Program SETUP MONITOR SETUP 1 Reference Manual Getting started 00809 0100 4841 January 2021 Emerson com Rosemount 53 ...

Page 54: ...l and volume measurement duties are not available on the Rosemount 3493 Logging Control Unit Related information Using the App Wizard to set up a level application Using the App Wizard to set up a contents volume application Using the App Wizard to set up a flow application Using the App Wizard to set up a level application Inputs Level measurement in feet from transmitter Transmitter Bottom Refer...

Page 55: ...elect Relay Relay 3 Setup Complete Program further Relays Esc Esc 000000 ft 5 Enter On point for Pump 2 000000 ft 8 Enter On point for Relay 3 000012 ft 2 Enter Off point for Relay 3 000012 ft 1 Lowest common off point 000000 ft 1 A B E F G C D A Options Level Volume Flow B Options Relay s Pump Control Custom C Options Assist com off Assist split off Stby com off Stby split off D Options Number of...

Page 56: ... ft Tank is a horizontal cylinder with flat ends Tank dimensions are 6 5 ft dia x 25 ft length Volume capacity is 6205 6 gallons Outputs Contents volume in US gallons displayed Relay on at 6000 gallons off at 5800 gallons Current Output range 0 to 6200 gallons Getting started Reference Manual January 2021 00809 0100 4841 56 Emerson com Rosemount ...

Page 57: ...ay 1 Setup Complete Program further Relays Esc 0 C D E F G H Enter On point for Relay 1 006000 gal Enter Off point for Relay 1 005800 gal A Enter value of Tank diameter 6 5000 ft A Options Level Volume Flow B Wait while transferring plot points C Options Vertical cylinder Horiz Cyl flat Horiz Cyl domed Rectangular Spherical Conical bottom 20 point table D Options Tank dimensions Maximum volume E O...

Page 58: ...nsmitter Open channel is a 60 V Notch Weir Maximum flow is 645 50 gallons per minute Height at maximum flow is 1 ft Outputs Flow rate in gallons per minute Totalized flow in gallons x 100 2 low flow cut off Getting started Reference Manual January 2021 00809 0100 4841 58 Emerson com Rosemount ...

Page 59: ...ect Units gallons x100 Esc Esc Inhibit Totalizer on digital input s Esc 0 C D E F G A A Options Level Volume Flow B Wait while transferring plot points C Options gallons per day gallons per hour gallons per min Mega gals day Cubic ft per hour Cubic ft per sec D Options Flow Calculation Flume Weir 3 2 V Notch Weir 5 2 V Notch ISO1438 Vlarem Parshall Manning 20 point look up E Options Height for max...

Page 60: ...pplications with no need of direct changes to application parameters Related information Volumetric contents and flow measurement applications advanced users Using a plotted profile for calculating volume or flow Change the digital input settings This includes how to allocate actions to digital inputs IN1 and IN2 Related information Digital inputs IN1 and IN2 Change output settings This includes s...

Page 61: ...These sections explain in depth what transmitter inputs are supported on the control unit and how to program configure the operation of those transmitter inputs to result in a control unit PV The resulting control unit PV is indicated on the factory default configured display For most users the App Wizard will set up the majority of applications with no need of direct changes to input channel para...

Page 62: ...t when a 4 20 mA transmitter is connected Do not connect a second transmitter The final result of the Input Channel 1 processing is stored in D800 and is referred to as the control unit Primary Process Value PV It is shown on the factory default configuration of the display Procedure 1 Select displayed units for the control unit Primary Process Value PV First it is essential to know the units for ...

Page 63: ...urce parameter P111 on the control unit must be set for a 4 20 mA signal input this is not the factory default setting for P111 Postrequisites Proceed with configuration of optional parameters Optional parameters and how the 4 20 mA signal is processed Figure 4 11 shows how the 4 20 mA input signal is processed through Input Channel 1 and which parameters and processing stages affect the resulting...

Page 64: ...alog measurements level pressure and temperature etc are input to the control unit as a 4 20 mA signal and pass through a conditioning stage to remove spikes and a damping stage to smooth out large jumps in signals The damping can be adjusted by changing the time setting in seconds in parameter P321 Navigate to the menu SETUP CONTROLLER INPUT CHANNEL Cur I P Damping Signal limits check The signal ...

Page 65: ...e menu SETUP CONTROLLER INPUT CHANNEL Ch1 Pre Scale Read only parameters D80 are in the menu MONITOR READINGS Optional calculation of contents volumetric or flow measurement By selecting a vessel profile or calculation using P113 a level measurement in D801 can be used to calculate a volume measurement or open channel flow rate that is then stored in D851 The programming configuring required for t...

Page 66: ...rce on 3492 SETUP CONTROLLER PV CALCULATION CHANNEL 1 Ch1 I P Source b Select Tx1 PV from the option list Note The built in Application App Wizard is an easy to use configuration tool that can be used to automatically populate values and settings in the input channel parameters Navigate to SETUP CONTROLLER APPLICATION App Wizard Before using the App Wizard the Input Channel 1 parameter P111 on the...

Page 67: ...ries Control Unit Selection of a HART variable as source for further processing Parameter P111 selects one of the four HART variables PV SV TV or FV on the transmitter to be the source for further processing to get a result from Input Channel 1 The unselected HART variables are mapped to control unit D80x parameters see Figure 4 12 Note In Figure 4 12 the selected source is the HART Primary Variab...

Page 68: ...ow a positive threshold which is a percentage of the maximum flow Enter the percentage in P117 By default the setting is None to switch off this optional check This feature is particularly useful in an open channel flow application where a small standing or remaining liquid level in the channel would cause continued totalizing of flow when no actual flow exists As a guide set P117 to a positive va...

Page 69: ...4 13 Transmitter Input Channel 2 for HART Input B P121 D900 A D901 D902 D903 PV SV TV or FV P122 C P124 D SV D801 TV D802 FV D803 H D800 E P123 Scaled Profiles F G PV P127 P150 D851 CH1 O P P125 P126 D852 CH2 O P J Tx1 Tx2 PV SV TV and FV PV SV TV and FV P151 I P210 P121 Tx2 PV A Txr Tx2 HART Variables B Input Source Select C Apply Input Offset D Apply Input Scale E Profile Select F Non Linear Pro...

Page 70: ...e parameter P123 can be set to Scaled if wanting just level measurement and then use parameter P124 as described in the paragraph above By selecting profile calculation using P123 a level value can be used to calculate a volumetric or open channel flow rate The programming configuring required for this can be found in Volumetric contents and flow measurement applications advanced users Note P123 a...

Page 71: ...ed users Set up the volumetric contents calculations for a popular linear uniform vessel advanced users The control unit can use level measurements to calculate the volumetric contents of a linear uniform shaped closed vessel e g a vertical cylinder or rectangular vessel Essential parameters to program Set up volumetric contents calculations for a linear uniform vessel Parameter P113 or P123 must ...

Page 72: ...r non uniform shaped closed vessel The control unit has a library of popular non linear vessel shapes Horizontal cylinder with flat ends Spherical vessel Horizontal cylinder with domed ends Examples of popular applications are shown in Figure 4 14 Figure 4 15 and Figure 4 16 Note For other vessel shapes see Set up flow calculations for non linear non uniform open channel profiles advanced users Po...

Page 73: ...tted non linear profile of tank P116 P126 Full volume of ideal conical tank Note The non linear profile NLP is plotted automatically when editing P113 P123 manually or when using the Application App Wizard except for the Conical NLP Menu SETUP CONTROLLER APPLICATION App Wizard P115 P125 is plotted with a simple cone if P113 P123 is set to Conical manually Reference Manual Getting started 00809 010...

Page 74: ...LATION CHANNEL 2 Ch2 Profile Ch2 Pre scale and Ch2 NLP Data respectively Setting P114 when a 4 20 mA level transmitter is connected The 4 20 mA level transmitter should ideally provide a mA signal that is already scaled for the full vessel height P114 or P124 can then be kept set at the default value of 1 0 If the mA signal is not scaled for the full vessel height P114 or P124 must be programmed w...

Page 75: ...arameters are in the menu SETUP CONTROLLER DISPLAY Note Rosemount 3492 P116 is in this menu SETUP CONTROLLER PV CALCULATION CHANNEL 1 Ch1 Post Scale P126 is in this menu SETUP CONTROLLER PV CALCULATION CHANNEL 2 Ch2 Post Scale P20x parameters are in the menu SETUP CONTROLLER DISPLAY Set up flow calculations for non linear non uniform open channel profiles advanced users The Rosemount 3490 Series C...

Page 76: ...l P115 Plotted non linear profile of channel P116 Maximum flow at maximum flow height Essential parameters to program Note P200 PV units must be changed from to the required units of measurement The parameter P200 is in the menu SETUP CONTROLLER DISPLAY Getting started Reference Manual January 2021 00809 0100 4841 76 Emerson com Rosemount ...

Page 77: ...mA signal that is already scaled for the full level range expected in the flow channel P114 or P124 can then be kept set at the default value of 1 0 If the mA signal is not scaled for the full level range of the channel P114 or P124 must be programmed with a value to convert scale the mA signal to be a value in the range 0 0 to 1 0 For example if the maximum current is below 20 mA for a full chann...

Page 78: ...c units of cubic meters per hour m3 hour When a Parshall flume is selected P115 P125 Pwr k and mul factors and P116 P126 are populated for measuring flow in imperial units of US gallons per minute GPM For flow measurement in alternative units with automatic scaling of the control unit PV use the App Wizard menu SETUP CONTROLLER APPLICATION App Wizard The choice of units offered depends on whether ...

Page 79: ...nnel s to be providing continuous level measurements Also P200 control unit PV units must be changed from the default to the required flow measurement units When using the App Wizard select V Notch ISO1438 at the prompt for a profile The App Wizard allows the selection of alternative flow units for the output result Related information Optional change transmitter input channel settings advanced us...

Page 80: ...0 0 Flume Flat VII 0 6237 1 5 0 01 3600 0 Flume Flat VIII 0 88116 1 5 0 01 3600 0 Flume Flt VIII bis 0 798 1 5 0 01 3600 0 Flume Flat IX 1 065186 1 5 0 01 3600 0 Flume Flat IX bis 0 8148 1 5 0 01 3600 0 Flume Flat X 1 3222761 1 5 0 01 3600 0 Flume Flat X bis 1 609 1 5 0 01 3600 0 Flume Flat X ter 1 064884 1 5 0 01 3600 0 Flume Flat XI 1 65099 1 5 0 01 3600 0 Flume Para 1 0 39885 2 3 0 01 3600 0 Fl...

Page 81: ...lated information Optional change transmitter input channel settings advanced users Using a plotted profile for calculating volume or flow When parameter P113 or P123 is set to special the parameter P115 or P125 is used for defining a 20 point look up table that represents the profile of a vessel or open flow channel that is not in the control unit library Note When using the App Wizard select 20 ...

Page 82: ...n derived from the plotted profile using the live level measurements that are already converted normalized by the Transmitter Input Channel processing Parameter P116 or P126 is then applied to the derived value to obtain the volume or flow rate for the control unit PV Note Rosemount 3491 3493 P113 to P116 are in the menus SETUP CONTROLLER INPUT CHANNEL Ch1 Profile Ch1 Pre scale Ch1 NLP Data and Ch...

Page 83: ...e the up arrow or down arrow buttons to edit the Y0 value 8 Press the red enter button once to confirm the new Y0 value 9 To edit X0 and Y0 again return to Step 1 Otherwise use the down arrow button to display the page with X1 and Y1 or use the Esc button to return to the menu 10 Repeat for all points in the profile An X point with 0 0 terminates the profile unless it is point X0 Y0 Need help The ...

Page 84: ...ion is present a message is displayed indicating the alarm is being overridden Alarm relay is held on Display Msg 3 Displays a user defined message P241 Log Input 4 When the next data logging interval elapses flag the data logged as a bad sample if the digital input has been active Pump down 5 Invoke a pump down operation Lock Params Prevent P prefixed parameters from being edited Protect totalize...

Page 85: ...h is typically the control unit Primary Process Variable PV If the Rosemount 3493 has been set up to totalizer the daily value of the totalizer at midnight is also logged Up to 60 midnight totalized values are held in memory This is in addition to the memory for 7000 events The maximum value of the parameter in each 24 hour period is also logged The Rosemount 3493 gives a visual indication that lo...

Page 86: ...ata 0 P592 Data Overwrite After the logging memory is full there is a choice to continue data logging and overwrite the oldest data On or to stop data logging Off On P593 Low Mem Alarm An alarm can be raised to indicate when the unused memory falls to below a user defined percentage P593 See Set up alarms for selecting if this alarm is indicated by a relay output driving the output current to a se...

Page 87: ... clear all data logged i e clear the 7000 event memory plus the 60 midnight totals Changing the log interval from a non zero interval e g 15 minutes to a new non zero interval e g five minutes will clear the 7000 event memory Procedure 1 Navigate to SETUP CONTROLLER LOGGING Log Interval MAIN MENU Run App MONITOR SETUP SELECT INSTRUMENT Tx1 Controller SETUP DISPLAY OUTPUT LOGGING LOGGING Fast Log L...

Page 88: ...every five minutes the control unit PV is a level measurement in meters When that level measurement is at one meter or more the Fast Log mode is required to activate When the memory is full old data is overwritten Procedure 1 Navigate to SETUP CONTROLLER LOGGING Logging Wizard MAIN MENU Run App MONITOR SETUP SELECT INSTRUMENT Tx1 Controller SETUP DISPLAY OUTPUT LOGGING LOGGING Log Interval Fast Lo...

Page 89: ...ght of the display is now the word LOG flashing to indicate that data logging is operating Related information Change the operating mode Using the logging wizard for data logging of flow measurements The Logging Wizard is the easiest way to set up the data logging feature after the main application is set up As an example consider data logging of the control unit PV value D800 every 15 minutes the...

Page 90: ... re appears Key presses for the wizard example are provided alongside the prompts Figure 4 21 Logging Wizard Example with Data Logging of Flow Measurements Logging Wizard ESC Quit Start Set Interval 1 Set fast LOG trip 000000 m3 s 1 Overwrite old data No LOG Digital input s None Memory Alarm Limit 00 1 Memory filling alarm Relay Select Relay 4 5 min A B C D A Measurement units for this wizard are ...

Page 91: ...nit PV value D800 as a 4 20 mA signal The output is calculated by using the range values of parameters P400 and P401 Consider a control unit PV value of 5 meters and the PV range is 0 to 10 meters 0 meters is represented by a 4 mA signal 0 5 meters is represented by a 12 mA signal 50 10 meters is represented by 20 mA signal 100 Therefore the Current Output would output the PV value five meters as ...

Page 92: ...it alarm Note The 3 75 mA and 21 75 mA options are the Rosemount standard The 3 6 mA and 22 5 mA options are the NAMUR NE43 standard There is another alarm condition when the current output has reached the linear limit i e saturated For the Rosemount Standard this is 3 9 mA or 20 8 mA For the NAMUR NE43 standard this is 3 8 mA or 20 5 mA 3 6 mA P404 mA Mode On the Rosemount 3493 this optional para...

Page 93: ...leaning Relay 5 is normally a Fail safe Fault relay but may be re allocated to another duty Related information Other relay modes Start and use the relay wizard Relays can be programmed easily using the Relay Wizard accessible by navigating to the RELAY menu The Relay Wizard also forms a part of the Application App Wizard Procedure Navigate to SETUP CONTROLLER OUTPUT RELAY Relay Wizard Example The...

Page 94: ...tate Procedure 1 Navigate to SETUP CONTROLLER OUTPUT RELAY Reset RL param 2 If you wish to proceed press the red enter button once Otherwise use the Esc button to exit to the RELAY menu Wait until the Please wait message disappears 3 Press the Esc button to exit to the RELAY menu Set up an on off point control relay Menu SETUP CONTROLLER OUTPUT RELAY RELAY 1 RELAY 2 etc Note Relays are frozen whil...

Page 95: ...ying application the On Point e g P411 is programmed to be greater than the Off Point e g P412 The Set Point relay energizes when the control unit PV D800 exceeds the On Point and de energizes when the PV value drops below the Off Point In a basic filling application the On Point e g P411 is programmed to be less than the Off point e g P412 The Set Point relay energizes when the control unit PV D8...

Page 96: ... N A P433 to P435 P433 to P435 are the equivalents for relay RL3 N A P443 to P445 P443 to P445 are the equivalents for relay RL4 N A P453 to P455 P453 to P455 are the equivalents for relay RL5 N A Other relay modes Table 4 9 is a list of all relay modes Table 4 9 Relay Modes Relay mode Purpose of relay mode Auxiliary functions None Relay is not used No Set point SV On Off Point control using SV D8...

Page 97: ...Relay de energizes when the PV D800 is greater than the On Point An A is shown by the RL1 icon status on the Full PV Display when there is a high or low alarm The section Set up alarms is not applicable Totalizer Rosemount 3491 only Relay outputs totalizer pulses No Totalizer 1 Rosemount 3492 3493 only Relay outputs totalizer 1 pulses No Totalizer 2 Rosemount 3492 3493 only Relay outputs totalizer...

Page 98: ...s Yes Yes Yes N A Stby Split off Yes Yes Yes Yes Yes N A Digital Inputs N A N A N A N A N A N A Sampler N A N A N A N A N A N A Rate change Yes N A N A N A N A N A Off N A N A N A N A N A N A Alarm Yes N A N A N A N A N A Hi Lo Alarm Yes N A N A N A N A N A Totalizer N A N A N A N A N A N A Fault N A N A N A N A N A N A Custom N A N A N A N A N A N A PV Limits Yes N A N A N A N A N A On N A N A N ...

Page 99: ...mon off points This function requires two or more Assist mode relays Two or more of these relays can be energized at the same time assisting and they all de energize at a common off point An Assist relay uses its On Point and Off Point parameters in a similar way to a Set Point mode relay A typical application would be emptying a wet well lift station The worked example here illustrates how the fu...

Page 100: ...ump 1 Figure 4 23 Figure 4 23 Pump 1 is On Rising Level Above 5 m A E F B C D A Level in m B 8 0 m P421 C 5 0 m P411 D 2 0 m P412 E Pump 1 F Pump 2 If the level continues to rise and is above 8 m On point P421 relay RL2 is energized to start Pump 2 and assist Pump 1 Relay RL1 stays energized to keep Pump 1 pumping Figure 4 24 Getting started Reference Manual January 2021 00809 0100 4841 100 Emerso...

Page 101: ...hich relays RL1 and RL2 de energize to switch off both pumps Figure 4 25 Figure 4 25 Pump 1 and Pump 2 are Off Falling Level Below 2 m A E F B C D A Level in m B 8 0 m P421 C 5 0 m P411 D 2 0 m P412 E Pump 1 F Pump 2 In this emptying application the common off point is P412 Off point relay RL1 and P422 Off point relay RL2 both of which are at the 2 m level Reference Manual Getting started 00809 01...

Page 102: ...mple the auto sequencing options are not considered Example wet well lift station application emptying operation due to rising level using assist mode relays and split separate off points Consider an application with two relays RL1 and RL2 connected to individual pumps in a wet well The control unit PV value D800 is a liquid level measurement in meters In Figure 4 26 both Pump 1 and Pump 2 are off...

Page 103: ...d assist Pump 1 Relay RL1 stays energized to keep Pump 1 pumping Figure 4 28 Figure 4 28 Pump 1 and Pump 2 are On Rising Level above 8 m A B C E D F G A Level in m B 8 0 m P421 C 5 0 m P411 D 3 5 m P422 E 2 0 m P412 F Pump 1 G Pump 2 When the level falls to below 3 5 m Off point P422 relay RL2 de energizes to switch off Pump 2 Figure 4 29 Reference Manual Getting started 00809 0100 4841 January 20...

Page 104: ...eeded A Standby Common Off relay uses its On Point and Off Point parameters in a similar way to a Set Point mode relay A typical application would be emptying a wet well lift station The worked example here illustrates how the function works To keep the example simple the auto sequencing options are not considered Example wet well application emptying operation due to rising level using standby co...

Page 105: ... start Pump 1 Figure 4 31 Figure 4 31 Pump 1 is On Rising Level Above 5 m A B C D E F A Level in m B 8 0 m P421 C 5 0 m P411 D 2 0 m P412 E Pump 1 F Pump 2 If the level continues to rise and is above 8 m On point P421 the relay RL2 is energized to start Pump 2 Relay RL1 is de energized to switch off Pump 1 Figure 4 32 Reference Manual Getting started 00809 0100 4841 January 2021 Emerson com Rosemo...

Page 106: ...y one of these relays is energized at any one time and the others are on standby to take over when needed A Standby Split Off Point relay uses its On Point and Off Point parameters just like a Set Point mode relay A typical application would be emptying a wet well lift station The worked example here illustrates how the function works To keep the example simple the auto sequencing options are not ...

Page 107: ...gized to start Pump 1 Figure 4 34 Figure 4 34 Pump 1 is On Rising Level Above 5 m A B C D E F A Level in m B 8 0 m P421 C 5 0 m P411 D 2 0 m P412 E Pump 1 F Pump 2 When the level exceeds 8 m On Point P421 relay RL2 is energized to start Pump 2 Relay RL1 is de energized to switch off Pump 1 Figure 4 35 Reference Manual Getting started 00809 0100 4841 January 2021 Emerson com Rosemount 107 ...

Page 108: ...4 36 Figure 4 36 Pump 1 is On and Pump 2 is Off Falling Level Below 5 m A B C D E F A Level in m B 8 0 m P421 C 5 0 m P411 D 2 0 m P412 E Pump 1 F Pump 2 In this emptying application the switch off point for Pump 2 is 5 m the On Point for relay 1 P411 On point relay RL1 is used P422 Off point relay RL2 is ignored When the level falls below 2 m Off point P412 relay RL1 de energizes to switch off Pu...

Page 109: ...se Width The duration controls both the On time and the Off time i e the pulse width and may be set to a value between 10 ms and 2 5 seconds in steps of 10 ms 100 Sampler mode relay Menu SETUP CONTROLLER OUTPUT TOTALIZER Sampler relays output pulses at a slower rate than a Totalizer relay The Sampler relay can be used as a coarse totalizer or as a trigger to an external event Table 4 13 Sampler Mo...

Page 110: ...ital inputs IN1 and IN2 for how to select the Fault action required for this feature None Note Faults can be indicated using the output current if the Current or Both options are selected Related information Control unit reporting of alarms and faults Set up the current output PV limits mode relay Menu SETUP CONTROLLER OUTPUT RELAY RELAY 1 RELAY 2 etc This relay mode uses the relay On Point and Of...

Page 111: ...ultaneously which could cause a massive surge When multiple relays are used for pump control or as a set point and power is lost this function provides a delay of 0 up to 9 seconds 3 seconds by default for the second third fourth and fifth relay when power is re established 3 s Auto sequence Rosemount 3491 and 3492 only Optional automatic rotation of the leading most used relay can be applied to A...

Page 112: ...271 Assist Ratio S 1 For two Assist mode relays only rotation based on the ratio of starts times energized compared to P271 Off No rotation required 1 Ratio is based on the first two lowest numbered relays with the same mode Related information Auxiliary functions for relay modes Energy saving Menu SETUP CONTROLLER OUTPUT RELAY OVERRIDES Table 4 18 Energy Saving Parameters Parameter Description Fa...

Page 113: ...e digit back to a 0 00000 Related information Auxiliary functions for relay modes Pump down Rosemount 3491 and 3492 only Menu SETUP CONTROLLER OUTPUT RELAY OVERRIDES In a pump down application the lowest relay Off Point pump off level is normally a fixed level above the Transmitter Bottom Reference point However it is sometimes required to make the pumps continue to run for a period past the Off P...

Page 114: ...p down h m This shows the time remaining before the next pump down is started The display shows 000 00 if a pump down is in progress or if it is not set up 000 00 Related information Relay safeguard options Auxiliary functions for relay modes Custom mode relay Menu SETUP CONTROLLER APPLICATION CUSTOM A custom mode relay is typically used together with a secondary external device to provide a volta...

Page 115: ...rol unit is in Program mode which prevents all Custom mode relay operations from starting Also it can happen when the maximum time for an energized relay has been reached and is preventing a Custom mode relay operation from completing 10 Table 4 22 P250 P251 P252 Options Options Purpose of option Start on P250 Stop on P251 Stop if P252 None Switched off Yes Yes Yes Time P253 and P254 determine whe...

Page 116: ...eration associated with parameter P491 Disabled Related information Auxiliary functions for relay modes Monitoring the control unit readings Set up alarms Relay run time alarm Menu SETUP CONTROLLER APPLICATION ALARM Table 4 24 Relay Run time Alarm Parameters Parameter Description Factory default P493 RL runtime It is an alarm condition when a relay selected by P494 has been energized for longer th...

Page 117: ...ted for monitoring using parameter P498 The alarm condition is cleared when any of the monitored relays are energized For alarm indication options see Set up alarms 0 00 h m P498 No Activity RL Select relays for the relay inactivity monitoring operation Each digit represents a relay Relay RL1 is selected for monitoring by editing the first digit to be a 1 Similarly relay RL5 is selected with the f...

Page 118: ...he calculated rate of change of the control unit PV D800 is positive the result is a Rising Level alarm condition The alarm condition stops as soon as the rate of change is negative indicating a falling level For the Rising Level alarm to be indicated by a relay output or the current output a method must be selected 0 00 m s Related information Auxiliary functions for relay modes Rate of change mo...

Page 119: ...nit continuously calculates the rate of change sampling a new control unit PV every 5 seconds Over the next 9 pump starts a further 9 change of RoC values are stored such that the control unit can then calculate an average value in change of RoC This average value RoC100 is then taken as being equivalent to the pump operating at 100 efficiency A value of 100 is then stored in D86 Each subsequent p...

Page 120: ...unit PV D800 must be in volume units so that the RoC value D809 is in units of volume per minute The control unit integrates this volume every second and increments the totalizer for every integer unit If the RoC value D809 is 12 m3 per minute and the Total factor parameter P530 is set to 1 0 m3 the Totalizer count D828 increments every five seconds 1 12th of a minute Note The Totalizer Wizard can...

Page 121: ...0 shows a list of active alarms Alarms are indicated using relay outputs and the current output Related information Control unit reporting of alarms and faults Alarm indication selection Menu SETUP CONTROLLER OUTPUT ALARM For each alarm there is a dedicated parameter in the ALARM menu for selecting the method of indication for that alarm Options for parameters P540 to P551 are None If the alarm is...

Page 122: ...rmation None P545 mA In Sat Select the indication method for the alarm condition that happens while the output current is saturated i e 3 7 mA or 20 75 mA None P547 Rising Level Select the indication method for the Rising Level alarm condition See Rising level alarm for information None P548 RL Operations Select the indication method for the alarm condition that happens while a relay operation cou...

Page 123: ...larm Suppressed N A N A N A N A Yes N A Custom relay operation retries exceeded Max Retries N A N A Yes Yes Yes N A Current input below lower linear limit mA In Low N A N A Yes Yes Yes N A Current input above higher linear limit mA In High N A N A Yes Yes Yes N A Raising level despite relays on Rising Level N A N A Yes Yes Yes N A Relay number of operations exceeded Relay Operations N A N A Yes Ye...

Page 124: ...he totalizer can be easily set up using the Totalizer Wizard accessible by navigating to the TOTALIZER menu The Totalizer Wizard also forms a part of the Application App Wizard Note The wizard requires the totalizer source parameter to have suitable units selected e g m3 hour If no suitable units are selected an invalid units message appears Procedure Navigate to SETUP CONTROLLER OUTPUT TOTALIZER ...

Page 125: ...alternative totalizer units of galx10 galx100 galx1000 and Mgal are available for selection When these special units are selected after selecting gal units the totalizer factor P530 is automatically re scaled by x10 x100 x1000 or x1000000 depending on the selection Similarly re scaling is automatic for ltrx10 ltrx100 etc after selecting ltr as totalizer units See Using the App Wizard to set up a f...

Page 126: ... rolls over too frequently To help alternative totalizer units of galx10 galx100 galx1000 and Mgal are available for selection When these special units are selected after selecting gal units the totalizer factor P530 is automatically re scaled by x10 x100 x1000 or x1000000 depending on the selection Similarly re scaling is automatic for ltrx10 ltrx100 etc after selecting ltr as totalizer units See...

Page 127: ...selecting gal units the totalizer factor P532 is automatically re scaled by x 10 x 100 x 1000 or x 1000000 depending on the selection Similarly re scaling is automatic for ltr x 10 ltr x 100 etc after selecting ltr as totalizer units See Using the App Wizard to set up a flow application for a flow application example where galx100 totalizer units are needed None P534 Pulse Width A Totalizer mode r...

Page 128: ...ls over too frequently To help alternative totalizer units of galx10 galx100 galx1000 and Mgal are available for selection When these special units are selected after selecting gal units the totalizer factor P530 is automatically re scaled by x10 x100 x1000 or x1000000 depending on the selection Similarly re scaling is automatic for ltrx10 ltrx100 etc after selecting ltr as totalizer units See Usi...

Page 129: ... defines the pulse width for a Sampler mode relay see Set up the relays Note See Set up the relays for information on Totalizer mode relays 100 ms P536 Total 2 Source Use this to select whether the control unit PV D800 SV D801 TV D802 or FV D803 value is to be totalized over a 24 hours period for the Totalizer 2 Count D829 Alternatively select None if not requiring Totalizer 2 See Optional change ...

Page 130: ...lock time will also be displayed alongside the selected parameter P731 Time P571 Display Middle Select from the multiple choice list of parameters see Table 4 38 For example the control unit Secondary Value SV value can be displayed when D801 SV is selected D800 PV P572 Display Lower Select from the multiple choice list of parameters see Table 4 38 For example you can display a user defined messag...

Page 131: ...3 RTime Running time for relay RL3 if energized D824 RL4 RTime Running time for relay RL4 if energized D825 RL5 RTime Running time for relay RL5 if energized D840 mA Input Actual current input D844 Internal C Temperature inside of the control unit D846 Logging memory remaining D900 PV In Transmitter PV Primary Variable D901 SV In Transmitter SV Secondary Variable D902 TV In Transmitter TV Tertiary...

Page 132: ...he same as set for the RS232 serial port of the communication device Range is 0 to 9 8 P715 Parity This must be the same as set for the RS232 serial port of the communication device Options are Even Odd or None Even P716 Stop Bits This must be the same as set for the RS232 serial port of the communication device Range is 0 to 9 1 Related information RS232 connections 4 4 19 Set up the PIN security...

Page 133: ...er is connected 2 Press the red enter button 3 Use the arrow buttons to edit the PIN number and then press the red enter button to save The 4 digit PIN will then be replaced by to indicate that PIN security is active By default the PIN is 0 if inactive Need help If the PIN number has been forgotten contact your Emerson representative for assistance Ensure you have the serial number of the control ...

Page 134: ...Getting started Reference Manual January 2021 00809 0100 4841 134 Emerson com Rosemount ...

Page 135: ...ied in this manual Failure to do so may impair the protection provided by the equipment Explosions could result in death or serious injury Please review the approvals section of this reference manual for any restrictions associated with an installation Electrical shock could cause death or serious injury If the control unit is installed in a high voltage environment and a fault condition or instal...

Page 136: ...rting disconnect the power 2 Carefully turn the flat bladed screwdriver anti clockwise until the fuse holder is released 3 Lift the fuse holder upwards and away from the control unit 4 Pull the old fuse out from the fuse holder Service and troubleshooting Reference Manual January 2021 00809 0100 4841 136 Emerson com Rosemount ...

Page 137: ...ch 7 Push the fuse holder downwards and then twist clock wise until the fuse holder stays in position Related information Fuse Replace the fuse on panel mount control unit Procedure 1 Before starting disconnect the power Reference Manual Service and troubleshooting 00809 0100 4841 January 2021 Emerson com Rosemount 137 ...

Page 138: ...l the fuse holder is released 3 Lift the fuse holder away from the control unit 4 Pull the old fuse out from the fuse holder 5 Push the new fuse into the fuse holder Service and troubleshooting Reference Manual January 2021 00809 0100 4841 138 Emerson com Rosemount ...

Page 139: ...The Simulation or Self Test function is selected by pressing the red enter button at the SIMULATION screen Procedure 1 Navigate to SETUP CONTROLLER APPLICATION SIMULATION 2 To start press the up arrow button once When started the control unit Primary Process Value PV is driven up to a maximum value P401 and then driven down to a minimum value P400 continuously therefore exercising the Current Outp...

Page 140: ...ce exercises all the LCD display pixels After several seconds the test ends by displaying the model code and software version number 3 To re run the Display Test press the red enter button again Otherwise press the Esc button to exit to the menu 5 3 3 Calibration of the Current Input Iin Procedure for 4 mA input calibration Procedure 1 Navigate to SETUP CONTROLLER SYSTEM TEST CURRENT INPUT 2 Apply...

Page 141: ...nt Output Iout Procedure for 4 mA output calibration Procedure 1 Navigate to SETUP CONTROLLER SYSTEM TEST CURRENT OUTPUT 2 Select the 4 mA Out Adjust menu option 3 Measure the output current from the Current Output Iout terminal 4 If the measured current is not 4 mA edit the existing value to be the actual mA reading and then save it Related information Electrical installation Procedure for 20 mA ...

Page 142: ...ference between the upper range value URV of the Current Output and the control unit PV i e D804 P401 D800 ANSWERS Ullage D805 Current Output This indicates the present amount of electrical current being output from the 4 20 mA Current Output as a percentage Note The output current is while the control unit is in the Program operating mode ANSWERS Current Out D806 Current O P This indicates the pr...

Page 143: ...times for the other relays Totalizer Rosemount 3491 only D828 Totalizer This indicates the totalizer count See Set up totalizing on the Rosemount 3491 for details of the totalizing feature on the 3491 Totalizer Totalizer Rosemount 3492 and 3493 only D828 Totalizer 1 This indicates the Totalizer 1 count See Set up totalizing on the Rosemount 3492 for details of the totalizing feature on the Rosemou...

Page 144: ... input current in mA See the section Optional change transmitter input channel settings advanced users for how this parameter is used D842 mA Input This indicates the present electrical input current as a percentage of the 4 20 mA range See Optional change transmitter input channel settings advanced users for how this parameter is used D844 CU temperature This indicates the present operating tempe...

Page 145: ...ions Menu SETUP CONTROLLER SYSTEM FIXED The factory set values of the following parameters may be requested from you if you ever contact Emerson for help with this product They can t be edited Table 5 3 Device Information Parameter Description D750 Model Code This is the full model number of your Rosemount 3490 Series Control Unit D751 Serial No serial number This is the unique serial number of th...

Page 146: ...the process material to which the product was last exposed CAUTION Individuals who handle products exposed to a hazardous substance can avoid injury if they are informed of and understand the hazard Returned products must include a copy of the required Safety Data Sheet SDS for each substance Emerson Instrument and Valve Response Center representatives will explain the additional information and p...

Page 147: ...t A 1 3 Power options AC mains or DC A 2 Display A 2 1 Type Dot matrix LCD 32 122 pixels back lit A 2 2 Location Integrated into the housing A 2 3 Indicators Red LED forhealth status A 3 Electrical A 3 1 AC mains power supply input 115 or 230 Vac 10 switch selectable Power consumption 10 VA nominal 18 VA maximum Reference Manual Specifications and reference data 00809 0100 4841 January 2021 Emerso...

Page 148: ...tter mounted in a hazardous area The control unit provides a nominal 24 Vdc supply but this output varies at the terminals depending on electrical load conditions see Table A 1 Table A 1 Minimum Terminal Output Voltages Load current mA Rosemount 3490 Series terminal voltage Vdc Maximum loop resistance Ohms 3 75 1 20 9 2370 4 0 20 8 2195 20 0 13 9 95 21 75 2 13 5 50 22 5 3 12 8 35 1 Minimum fault c...

Page 149: ...00 Vdc A 3 11 Update rate software Five times per second A 3 12 Cable entry IP rated wall mount enclosure Five positions pre drilled two glands and three blanking plugs supplied NEMA 4X rated wall mount enclosure Positions require drilling by user glands conduits and blanking plugs are not supplied Panel enclosure Direct wiring to terminal blocks at rear A 3 13 Cable connection Wall mount enclosur...

Page 150: ... is not in a position to evaluate or guarantee the compatibility of the process fluid or other process parameters with the product options configuration or materials of construction selected A 4 2 Materials of construction Wall mount Polycarbonate enclosure and cover IP rated wall mount 304SST cover fixing screws NEMA 4X rated wall mount Polyester and Alloy 400 fastening UV resistant Polycarbonate...

Page 151: ...4 Ingress protection IP rated wall mount IP65 indoor outdoor NEMA 4X rated wall mount NEMA 4X indoor outdoor Panel mount IP40 indoor mount or IP65 if with optional hood A 5 5 Maximum vibration Control Room 0 1 to 9 Hz 1 5 mm displacement peak amplitude 9 to 200 Hz 0 5 g A 5 6 Installation category Category III Supply voltage 127 Vac IEC60664 Category II Supply voltage 254 Vac IEC60664 Reference Ma...

Page 152: ...ximum altitude 6562 ft 2000 m A 5 9 Electromagnetic compatibility Emissions and immunity for IP rated wall mount and panel mount EN61326 1 Specifications and reference data Reference Manual January 2021 00809 0100 4841 152 Emerson com Rosemount ...

Page 153: ...2 3 59 0 8 19 5 0 6 14 5 0 96 24 5 7 8 198 5 8 147 5 1 1 28 1 4 36 5 5 141 3 3 84 2 2 56 7 3 185 D C B A A Body B Five holes 0 8 20 5 C Terminal cover D Lid Dimensions are in inches millimeters Reference Manual Specifications and reference data 00809 0100 4841 January 2021 Emerson com Rosemount 153 ...

Page 154: ... Control Unit 12 9 328 11 8 300 11 280 11 8 300 5 5 138 4 11 280 A A Four mounting holes 0 3 8 Dimensions are in inches millimeters Specifications and reference data Reference Manual January 2021 00809 0100 4841 154 Emerson com Rosemount ...

Page 155: ...l cut out control unit B Panel cut out RS232 data download socket on 3493 only Dimensions are in inches millimeters Note For safety the panel should be strong enough to support the 2 6 lb 1 2 kg mains power or 1 8 lb 0 8 kg DC power mass of the unit Reference Manual Specifications and reference data 00809 0100 4841 January 2021 Emerson com Rosemount 155 ...

Page 156: ...nclosure mounting Code Description P6 Wall mounting IP65 P7 Panel mounting IP40 P4 Wall mounting NEMA 4X Product certificates Code Description I1 ATEX Intrinsically Safe I5 1 USA Intrinsically Safe I6 2 CSA Intrinsically Safe I7 IECEx Intrinsically Safe 1 Enclosure mounting codes P4 or P7 are required for this option 2 Enclosure mounting codes P4 or P7 are required for this option Specifications a...

Page 157: ...ation Accessory 03490 7001 0001 IP65 hood kit for panel mountable control unit enclosure mounting code P7 Related information Enclosure mounting Reference Manual Specifications and reference data 00809 0100 4841 January 2021 Emerson com Rosemount 157 ...

Page 158: ...Specifications and reference data Reference Manual January 2021 00809 0100 4841 158 Emerson com Rosemount ...

Page 159: ...des B 3 North America B 3 1 I5 USA Intrinsically safe Certificate 1830310 Standards CSA C22 2 No 0 10 CSA C22 2 No 142 M1987 CAN CSA C22 2 No 157 92 UL 913 1997 UL 916 CAN CSA C22 2 No 94 M1991 Markings Intrinsically safe for Class I Division 1 Groups A B C and D Intrinsically safe for Class 1 Zone 0 Group IIC Ex ia Ambient temperature 40 C to 55 C Uo Io Po La Ca Safety parameters 27 3 V 96 9 mA 0...

Page 160: ...a high integrity earth ground point in a non hazardous area B 5 International B 5 1 I7 IECEx Intrinsically Safe Certificate IECEx SIR 06 0104X Standards IEC 60079 0 2011 IEC 60079 11 2011 Markings Intrinsically safe for Ex ia IIC Ex ia Da IIIC Ambient temperature 40 C to 55 C See also ATEX and IECEx conditions for safe use I1 and I7 Uo Io Po Li Ci Safety parameters 27 3 V 96 9 mA 0 66 W 0 22 mH 0 ...

Page 161: ...of the user to ensure the voltage and current limits for this equipment are not exceeded d If the equipment is likely to come into contact with aggressive substances it is the responsibility of the user to take suitable precautions that prevent it from being adversely affected thus ensuring that the type of protection is not compromised Aggressive Substances e g acidic liquids or gases that may at...

Page 162: ...rs Terminals T1 24 V with respect to T2 Iin and T1 24 V with respect to T3 Earth Terminals T2 Iin with respect to T3 Earth 1 Ui 0 Uo 27 3 V lo 96 9 mA Po 0 66 W Li 0 22 mH Ci 0 6 nF Ui 30 V li 120 mA Li 0 1 mH Ci 0 6 nF Uo 6 51 V capacitive charging only Io 0 Po 0 1 Terminal T2 Iin with respect to terminal T3 Earth must be treated as a 6 51 V source The 6 51V is considered as being theoretical max...

Page 163: ... enclosure and cover Polyester and alloy 400 fastening UV resistant polycarbonate membrane keypad 349 P7 Polyphenylene PPO enclosure and cover Carbon steel zinc plated fascia fixing screws UV resistant Polycarbonate membrane keypad Nylon and PBT terminal blocks with plated fittings f Year of manufacture printed on product label Reference Manual Product certifications 00809 0100 4841 January 2021 E...

Page 164: ...B 8 System control drawing Figure B 1 System Control Drawing for Hazardous Area Installation I5 and I6 Product certifications Reference Manual January 2021 00809 0100 4841 164 Emerson com Rosemount ...

Page 165: ... Series Transmitter is connected refer to the Rosemount 3101 3102 and 3105 Reference Manual and Rosemount 3107 and 3108 Reference Manual for full information about programming the transmitter parameters e g Transmitter Bottom Reference using the Rosemount 3490 Series Control Unit or other HART based devices Reference Manual Menus and parameter 00809 0100 4841 January 2021 Emerson com Rosemount 165...

Page 166: ... Display Lower P572 Display Lower Bar graph Decimal places P573 Decimal places 3 PV Units P200 PV Units SV Units P201 SV Units None TV Units P202 TV Units FV Units P203 FV Units None Display size P574 Display size Large Backlight P575 Backlight On OUTPUT CURRENT OUTPUT Low Range Val P400 Low Range Val as P200 0 Up Range Val P401 Up Range Val as P200 100 Alarm Action P402 Alarm Action 3 6 mA mA Sou...

Page 167: ... P200 0 P422 Relay 2 OFF Point As P200 0 P423 Relay 2 Minimum On Time mm ss 000 00 P424 Relay 2 Maximum On Time mm ss 000 00 P425 Relay 2 Minimum Off Time mm ss 000 00 RELAY 3 P430 Relay 3 Mode None P431 Relay 3 ON Point As P200 0 P432 Relay 3 OFF Point As P200 0 P433 Relay 3 Minimum On Time mm ss 000 00 P434 Relay 3 Maximum On Time mm ss 000 00 P435 Relay 3 Minimum Off Time mm ss 000 00 SETUP OUT...

Page 168: ...y 5 Maximum On Time mm ss 000 00 P455 Relay 5 Minimum Off Time mm ss 000 00 ALARM P490 Rising level alarm delay mm ss 000 00 P491 Relay operations alarm limit 0 P492 Relay operations relay select Disabled P493 Relay runtime alarm limit hh m m 00 00 P494 Relay runtime relay select Disabled P495 2 Pump efficiency limit 0 P496 2 Pump efficiency relay select 0 P497 No activity delay hh m m 00 00 P498 ...

Page 169: ... P278 3 Scum Line Prevention relay 0 CUSTOM P250 Start On None 0 4 P251 Stop On None 0 3 P252 Stop If None 0 253 P253 Start Time hh m m 07 00 P254 Interval hh m m 01 00 P255 Start Time 2 hh m m 00 00 P256 Interval 2 hh m m 00 00 P257 Max Retries 10 0 250 SETUP OUTPUT TOTALIZER 4 Totalizer Wizard Totalizer Wizard 0 Total 1 Factor P530 Totalizer 1 Factor 0 0 Total 1 Units P531 Totalizer 1 Units 0 0 ...

Page 170: ... Memory Filling 6 None Digital Input P543 Digital Input None Max Retries P544 Maximum number of retries None mA In Sat P545 Current Input Saturated None Rising Level P547 Rising Level None RELAY P548 Relay operations None P549 Relay runtime None P550 Pump efficiency None P551 No activity None FAULT System Fault P560 System Fault Both CU Temp Fault P561 Control Unit Temperature Fault None Xmtr Faul...

Page 171: ... P321 Current Input 1 Damping sec 5 0 99 9 SETUP PV CALCULATION 3492 CHANNEL 1 Ch1 I P Source P111 Channel 1 Input Source Tx1 PV Ch1 I P Offset P112 Channel 1 Input Offset 0 Ch1 Profile P113 Channel 1 Profile Scaled Ch1 Pre Scale P114 Channel 1 Input Scale Factor 1 Ch1 NLP Data P115 Channel 1 Non Linear Data 0 Ch1 Post Scale P116 Channel 1 Post Scale 1 Ch1 Low Cut off P117 Channel 1 Low Cut off as...

Page 172: ... 00 Dig In1 Active P342 Digital Input 1 Active Closed DIGITAL INPUT 2 Dig In2 Action P345 Digital Input 2 Action Free Dig In2 Delay P346 Digital Input 2 Delay mm ss 000 00 Dig In2 Active P347 Digital Input 2 Active Closed SYSTEM TEST DISPLAY Display Test CURRENT INPUT 4mA input adjust 20mA input adjust CURRENT OUTPUT P700 4mA output adjust P701 20mA output adjust P702 Set Current mA 0 SETTINGS Dat...

Page 173: ...Odd Stop Bits P716 Number of stop bits 1 1 2 FIXED Model Code D750 Model code Factory Serial No D751 Serial Number Control Unit Factory H W Revision D752 Hardware Revision Factory S W Revision D753 Software Version Factory HART D760 Manufacturer s Code RMT D761 Unique ID Factory D762 Universal command revision 5 D763 Txr spec command revision 2 D764 Pre amble bytes 5 D765 Flags 1 Run App Program R...

Page 174: ...TIONS D811 Relay 1 Operations Counter 0 D812 Relay 2 Operations Counter 0 D813 Relay 3 Operations Counter 0 D814 Relay 4 Operations Counter 0 D815 Relay 5 Operations Counter 0 Relay Status D820 Relay Status RELAY RUN TIME D821 Relay 1 run time hh m m D822 Relay 2 run time hh m m D823 Relay 3 run time hh m m D824 Relay 4 run time hh m m D825 Relay 5 run time hh m m Totalizer D828 Totalizer 1 value ...

Page 175: ...y RL2 D862 Pump efficiency RL2 Pump effy RL3 D863 Pump efficiency RL3 Pump effy RL4 D864 Pump efficiency RL4 ADVANCED Pxx Dxx 1 Selecting SETUP menu presents a SELECT INSTRUMENT screen if a HART transmitter is assigned to a Current Input channel Select CONTROL UNIT tag to see Menu Level 2 options 2 The pump efficiency calculation is available on the Rosemount 3491 and 3492 see Pump efficiency alar...

Page 176: ...492 8 Factory default is 1200 for the Rosemount 3493 and 9600 for the Rosemount 3491 and 3492 9 The second channel output is on the Rosemount 3492 only 10 Relay 5 does not support the pump efficiency calculation Menus and parameter Reference Manual January 2021 00809 0100 4841 176 Emerson com Rosemount ...

Page 177: ...signment Yes Yes QV Assignment P009 QV Assignment Yes Yes CURRENT Upper Range Value P015 Upper Range Value Yes Yes Yes Lower Range Value P016 Lower Range Value Yes Yes Yes Loop Current Activ P017 Loop Current Active Yes Yes Damping P020 Damping Yes Yes Yes Range Value Units Range Value Units Yes Yes SYSTEM TRIM Fix Current Output Fix Current Output Yes Yes Yes Trim 4 mA Trim 4 mA Yes Yes Yes Trim ...

Page 178: ... Yes Hardware Revision D952 Hardware Revision Yes Yes Yes HART D950 HART Device Type Yes Yes D951 Poll Address Yes Yes Yes D953 Software Revision Yes Yes Yes D960 Manufacturer Yes Yes D961 Device ID Yes Yes Yes SETUP DUTY SYSTEM FIXED HART D962 HART Revision Yes Yes Yes D963 Device Revision Yes Yes Yes D964 Request Preambles Yes Yes D966 Response Preambles Yes Yes D967 Max Number of Dev Variables ...

Page 179: ...Status 4 Yes Yes Additional Status 5 D987 Additional Status 5 Yes Yes STANDARD Extended Dev Stat D988 Extended Dev Status Yes Yes Device Op Mode D989 Device Op Mode Yes Yes Standard Status 0 D990 Standard Status 0 Yes Yes Standard Status 1 D991 Standard Status 1 Yes Yes Analog Chan Sat D992 Analog Chan Sat Yes Yes Standard Status 2 D993 Standard Status 2 Yes Yes Standard Status 3 D994 Standard Sta...

Page 180: ...rameter Name HART 5 HART 6 HART 7 Xducer Min Span D943 Xducer Min Span Yes Yes COMMS STATS STX Count D969 STX Count Yes ACK Count D970 ACK Count Yes 1 The control unit LCD display supports the viewing and editing of up to 16 characters Menus and parameter Reference Manual January 2021 00809 0100 4841 180 Emerson com Rosemount ...

Page 181: ...ETUP CONTROLLER SYSTEM DEFAULTS 3 Press the red enter button twice and then wait until Done 4 Switch off the power to the control unit 5 If there are two transmitters connected to a Rosemount 3492 Control Unit a Switch off power to the control unit b Remove the second transmitter associated with Transmitter Input Channel 2 c Switch on power to the control unit 6 Put the control unit into Run App m...

Page 182: ...screens After entering the ADVANCED menu select Pxxx or Dxxx see Figure D 2 Figure D 2 Pxxx or Dxxx Selection ADVANCED Dxxx Pxxx P110 ADVANCED 0 Next input a valid identification number using the arrow buttons 010 is the default and press the red enter button to confirm and make that parameter screen appear see Figure D 3 Figure D 3 Pxxx Editing Example with Valid Parameter Number P110 ADVANCED 0 ...

Page 183: ...croll through adjacent parameters see Figure D 5 Figure D 5 Scrolling Through Adjacent Parameters P ADVANCED PV Units ESC Quit Edit ESC Quit Edit PV Units ESC Quit Edit P200 P200 SV Units P201 200 Use the Esc button to return to the Pxxx or Dxxx selection screen To exit to the MAIN MENU press the Esc button repeatedly see Figure D 6 Figure D 6 Returning to the Menu System PV Units P200 ESC Quit Ed...

Page 184: ...Additional features Reference Manual January 2021 00809 0100 4841 184 Emerson com Rosemount ...

Page 185: ...it is designed to provide an intrinsically safe power supply to power a I S approved transmitter that is field mounted in a hazardous area The control unit provides a nominal 24 Vdc supply Communication with the transmitter is HART provided the transmitter current output is configured in a passive mode to enable the control unit to power the current loop The addition of components both resistive a...

Page 186: ... Rosemount 3490 terminal voltage Vdc Maximum loop resistance ohms 3 75 20 9 2370 Minimum fault current 4 0 20 8 2195 Normal minimum output 20 0 13 9 95 Normal maximum output 21 75 13 5 50 Maximum o p Rosemount fault level 22 5 12 8 1 35 Maximum o p NAMUR NE43 fault level 1 Minimum output voltage is 12 8 Vdc The maximum loop resistance quoted ensures there will be at least 12 Vdc available at the t...

Page 187: ...e primary variable range values 36 Set primary variable upper range value 37 Set primary variable lower range value 40 Enter exit fixed current mode 41 Perform self test 42 Perform device reset 43 Set primary variable zero 44 Write primary variable units 45 Trim loop current zero 46 Trim loop current gain 47 Write primary variable transfer function 50 Read dynamic variable assignments 51 Write dyn...

Page 188: ... real tine clock 95 Read device communication statistics 107 Flush delayed responses 109 Burst mode control Support for HART Transmitters Reference Manual January 2021 00809 0100 4841 188 Emerson com Rosemount ...

Page 189: ...Reference Manual 00809 0100 4841 January 2021 Emerson com Rosemount 189 ...

Page 190: ... 41 0 41 768 6111 41 0 41 768 6300 RFQ RMD RCC Emerson com Asia Pacific Regional Office Emerson Automation Solutions 1 Pandan Crescent Singapore 128461 65 6777 8211 65 6777 0947 Enquiries AP Emerson com Middle East and Africa Regional Office Emerson Automation Solutions Emerson FZE P O Box 17033 Jebel Ali Free Zone South 2 Dubai United Arab Emirates 971 4 8118100 971 4 8865465 RFQ RMTMEA Emerson c...

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