Rosemount 3051 manual.Rosemount 3051C: (Pressure Transmitter) Rev8
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EMERSON ROSEMOUNT REFERENCE MANUAL Pdf Download | ManualsLib.Rosemount™ 3051S Differential Pressure Flow Transmitter
Isolate closed I. Plugged 3. Open the equalize valve on the low pressure downstream side of the transmitter. The manifold is now in the proper configuration for zeroing the transmitter. Page 42 downstream side of the transmitter. Plugged B. Process D. Equalize open E. Plugged 5.
Close the equalize valve on the high pressure upstream side. Always use caution when venting directly to atmosphere.
Page 45 The following steps are provided as a procedure to adjust valve packing: Procedure 1. Remove all pressure from device. Loosen manifold valve jam nut. Tighten manifold valve jam nut. Re-apply pressure and check for leaks. Zero range suppression is required if the transmitter lies below the zero point of the desired level range. Figure shows a liquid level measurement example.
Page 47 Let e equal head pressure produced by Y expressed in inches of water. Page 48 Let s equal head pressure produced by z expressed in inches of water. Page 49 Figure shows a bubbler liquid level measurement example. Figure Bubbler Liquid Level Measurement Example Let X equal the vertical distance between the minimum and maximum measurable levels in.
Page 50 Let SG equal the specific gravity of the fluid 1. Let h equal the maximum head pressure to be measured in inches of water. Let Range equal zero to h. Page Chapter 4 Electrical Installation Process leaks could result in death or serious injury. Install and tighten process connectors before applying pressure.
Electrical shock could cause death or serious injury. Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock. Installing the display on an existing Rosemount requires a small instrument screwdriver. Interconnecting pins B. Jumpers top and bottom C. Plug and seal unused conduit connections.
If applicable, install wiring with a drip loop. See Figure Replace the housing cover. Power terminals B. Page 56 Procedure 1. Remove the field terminals housing cover.
Connect the wiring pair and ground as indicated in Figure Page 57 Power supply The dc power supply should provide power with less than two percent ripple. The transmitter requires between 9 and 32 Vdc between 9 and Page 58 The transient protection terminal block can be ordered as an installed option Option Code T1 in the transmitter model number or as a spare part to retrofit existing Rosemount Transmitters in the field.
See Other spare parts for spare part numbers. Page 59 Internal ground connection: The internal ground connection screw is inside the field terminals side of the electronics housing. This screw is identified by a ground symbol.
The ground connection screw is standard on all Rosemount Transmitters. Refer to Figure Select AGA No. Select Next to proceed to the Fluid Composition tab. Required data for each method is listed in Table If appropriate, enter the optional data for the Natural Gas Characterization Method that was selected in Step 2.
Optional data for each method is listed in Table Note that these values may be edited by the user. Select Next. This will open the Fluid Properties tab. The ideal gas option should be used when the fluid behavior can be modeled by the ideal gas law.
This option uses a modified version of the ideal gas law with a constant value of compressibility. The default value for compressibility is 1. To use an ideal gas enter in the operating pressure and temperature followed by either the density, specific gravity, or molecular weight. Select the Ideal Gas option. Engineering Assistant will use these ranges to identify the pressure and temperature values at which the fluid properties are required.
For the ideal gas being used the nominal density, specific gravity, or molecular weight must now be entered using the drop-down menu. Once these are entered the other data entry fields, compressibility and viscosity, are enabled as shown on Figure Adjust the compressibility and viscosity to fit the ideal gas of the process.
Select Next to proceed to the Fluid Properties tab. Select Next to continue with the flow configuration on the Primary Element Selection tab. Proceed with the steps in Primary element selection. The custom gas option should be used for fluids not in the database such as proprietary fluids or gas mixtures.
To properly calculate the fluid properties, the compressibility factor or density needs to be entered at specific pressure and temperature values based on the operating ranges entered by the user.
The pressure and temperature values may be edited as needed. The editable values are shown in fields with white backgrounds. For best performance, it is recommended that, whenever possible, the compressibility or density values be entered at the suggested pressure and temperature values.
The recommended process is to copy the pressure and temperature values from the table on the Engineering Assistant screen to assist in computing the density or compressibility values.
Once the compressibility or density values are computed, they may then be copied from the spreadsheet and pasted into the grid on the Custom Gas Fluid Properties tab. Select the Custom Gas option. Enter the Molecular Weight of the Custom Gas.
When the molecular weight of the gas is entered, the other data entry fields on the tab are enabled as shown in Figure Select either Density or Compressibility and enter data. All pressure and temperature values may be edited except the minimum and maximum values. The minimum and maximum values were set on the Fluid Selection tab. Enter the Density or Compressibility at reference conditions. Enter the Custom Gas Viscosity at the given temperatures.
Note that all temperature values may be edited except the minimum and maximum temperatures. Enter the Custom Gas Isentropic Exponent. The Custom Liquid option should be used for fluids not in the database such as proprietary fluids. Expand the Liquid category. Expand the Custom Liquid category. Select the Custom Liquid Density [T] option. Enter the Nominal and Operating Temperature Range. Engineering Assistant will use this range to identify the temperature values at which the fluid properties are required.
Select Next to continue the flow configuration on the Fluid Properties tab. Enter the Custom Liquid Density at the given temperatures. All temperature values may be edited except the minimum and maximum temperatures. Enter the Reference Density at the reference temperature.
Enter the Custom Liquid Viscosity at the given temperatures. This section provides procedures for configuring the basic requirements to commission the Rosemount SMV. The Basic Setup tab, shown in Figure , can be used to perform all of the required transmitter configuration. Based on the configuration ordered, some measurements i. See Ordering information for more information. All screens in this section are shown for multivariable type M fully compensated mass and energy flow with measurement type 1 differential pressure, static pressure, and process temperature.
Field Communicator Fast Keys are given for both multivariable type M and P direct process variable output with measurement type 1. Field Communicator Fast Keys and screens for other multivariable types and measurement types may vary.
When using Engineering Assistant, a Reset Page button will be shown. In online mode, the Reset Page button will return all values on tab to the initial values received from the device before the start of the configuration. If editing a previously saved configuration, the Reset Page button will return all values on tab to those that were last saved. If starting a new configuration, all entered values on tab will be erased. Edited information is not sent to the transmitter until the Apply or OK button is selected.
If a unit of measure is edited and the Apply button is selected, the unit of measure will be changed in the device memory and on screen, but the value may take up to 30 seconds to be updated on the AMS Device Manager screen. The tag information is used to identify specific transmitters on the 4—20 mA loop. This tag information may be edited. The Damping and Units of the Flow Rate may also be edited under this heading.
The flow calculation within the device uses undamped process variables. Flow rate damping is set independently of measured process variables.
Energy rate calculations are only available for steam and natural gas. The energy rate calculation within the device uses undamped process variables. Energy rate damping is set independently of flow rate damping or measured process variables. Both absolute and gage pressure are available as variables. The type of transmitter ordered will determine which variable is measured and which is calculated based on the user.
For more information on configuring the atmospheric pressure, see Static pressure. Since only one of the static pressures is actually being measured, there is a single damping setting for both variables which may be edited under the Static Pressure heading. This button allows the user to select the variable to be totalized.
The Totalizer Units may also be edited under this heading. The Identification tab displays the device identification information on one screen. The fields with white backgrounds may be edited by the user. The Rosemount SMV automatically and continuously performs self-diagnostic routines. If the self-diagnostic routines detect a failure, the transmitter drives the output to the configured alarm value.
The transmitter will also drive the output to configured saturation values if the primary variable goes outside the 4—20 mA range values. See Alarm and saturation level configuration for more information. The alarm direction can be configured using the hardware switch on the feature board. See Configure security write protect for more information on the hardware switch. The transmitter alarm level should be verified before returning the transmitter to service if alarm and saturation levels are changed.
This feature is also useful in testing the reaction of the control system to a transmitter in an alarm state. To verify the transmitter alarm values, perform a loop test and set the transmitter output to the alarm value see Alarm and saturation and Analog output loop test.
The analog output of the Rosemount SMV may respond differently based on which measurement goes outside the sensor limits. This response will also depend on the device configuration. Table lists the behaviors of the analog output under different conditions. The primary variable represents the 4—20 mA analog output signal while the 2nd, 3rd, and 4th variables are digital.
To edit the variable assignments, select the appropriate process variables from the drop-down menus and select Apply. The LCD display features a four-line display and a 0— percent scaled bar graph. The first line of five characters displays the output description, the second line of seven digits. The LCD display can also show diagnostic messages. These diagnostic messages are listed in Table Select the check box next to each variable to select a variable for display.
The transmitter will scroll through the selected variables, showing each for three seconds. Mounting Bracket Option Code B4 2. Page 27 2. Flange bolts The Rosemount can be shipped with a coplanar flange or a traditional flange installed with four 1.
Use the following bolt installation procedure: 1. Finger-tighten the bolts. Torque the bolts to the initial torque value using a crossing pattern see Table torque values.
Description Size in. Avoid purging through the transmitter. Use only the O-ring designed for the corresponding flange adapter. Failure to install proper flange adapter O-rings may cause process leaks, which can result in death or serious injury. Page Rosemount , And Manifolds 3. Undamaged O-rings may be reused. If the O-rings are damaged if they have nicks or cuts, for example , replace with O-rings designed for Rosemount transmitter.
Align the conventional manifold with the transmitter flange. Use the four manifold bolts for alignment. Finger tighten the bolts, then tighten the bolts incrementally in a cross pattern to final torque value. To zero trim the transmitter, close the isolate valve on the low side downstream side of the transmitter.
Open the equalize valve to equalize the pressure on both sides of the transmitter. Page 36 Reference Manual Hardware Installation , Rev DA August 5-valve natural gas manifold Performing zero trim at static line pressure 5-valve natural gas configurations shown: In normal operation, the two isolate block valves between the process ports and transmitter will be open, and the equalize valves will be closed. After performing a zero trim on the transmitter, close the equalize valve on the low pressure downstream side of the transmitter.
To isolate the transmitter, close the isolate valve. Transmitter Vent closed Isolate Process closed 2. To bring the transmitter to atmospheric pressure, Transmitter open the vent valve or bleed screw. Note Vent open Page Liquid Level Measurement Reference Manual Hardware Installation , Rev DA August Adjusting valve packing Over time, the packing material inside a Rosemount manifold may require adjustment in order to continue to provide proper pressure retention.
Not all Rosemount manifolds have this adjustment capability. The Rosemount manifold model number will indicate what type of stem seal or packing material has been used. Make a connection to the high pressure side of the transmitter, and vent the low pressure side to the atmosphere. Page 41 Reference Manual Hardware Installation , Rev DA August Wet leg condition Condensation of the gas above the liquid slowly causes the low side of the transmitter piping to fill with liquid.
The pipe is purposely filled with a convenient reference fluid to eliminate this potential error. Page 42 Reference Manual Hardware Installation , Rev DA August Bubbler system in open vessel A bubbler system that has a top-mounted pressure transmitter can be used in open vessels.
This system consists of an air supply, pressure regulator, constant flow meter, pressure transmitter, and a tube that extends down into the vessel. Installing the display on an existing Rosemount requires a small instrument screwdriver. Figure LCD Display A. Interconnecting pins C. Page Simulate August 4. Section 2: Configuration for details on Simulate mode. Page Wiring 6. If applicable, install wiring with a drip loop. See Figure Replace the housing cover. Power terminals B.
Trunk B. Integrated power conditioner and filter G. DP network C. Terminators H. Signal wiring D. Page Transient Protection Terminal Block The transient protection terminal block can be ordered as an installed option Option Code T1 in the transmitter model number or as a spare part to retrofit existing Rosemount Transmitters in the field.
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Item Type. Pipe Mount, Bolts, Stainless Steel. Mounting Bracket. Pressure Measurement.
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