To Next PageTo Next PageWhy is the milliamps reading erratic on my Emerson Transmitter?
If the milliamps reading on your Emerson Transmitter is erratic, ensure the power source provides adequate voltage and current. Also, check for external electrical interference. Verify the transmitter is properly grounded and that the shield for the twisted pair is only grounded at one end.
How to fix zero milliamp reading on Emerson Transmitter?
To address a zero milliamp reading on your Emerson Transmitter, take the following steps: * Ensure the terminal voltage is between 10.5 to 42.4 Vdc at the signal terminals. * Check the power wires for reversed polarity. * Confirm the power wires are connected to the signal terminals. * Inspect for an open diode across the test terminal.
What to do if Emerson Transmitter is not communicating with Field Communicator?
If your Emerson Transmitter is not communicating with the Field Communicator, try the following: 1. Verify the terminal voltage is between 10.5 to 42.4 Vdc. 2. Check the loop resistance; it should be 250 ? minimum. (PS voltage - transmitter voltage/loop current). 3. Ensure the power wires are connected to the signal terminals and not the test terminals. 4. Confirm clean DC Power to the transmitter (Max AC noise 0.2 volts peak to peak). 5. Verify the output is between 4 and 20 mA or saturation levels. 6. Have the Field Communicator poll for all addresses.
Why is digital pressure variable reading erratic on my Emerson Transmitter?
If the digital pressure variable reading on your Emerson Transmitter is erratic, check the application for faulty equipment in the pressure line. Verify the transmitter is not reacting directly to equipment turning on or off. Also, verify that the damping is set properly for the application.
How to troubleshoot zero voltage reading on Emerson Transmitter?
If the Emerson Transmitter voltage reading is zero, verify the terminal voltage is 5.8 to 28.0 Vdc at the signal terminals. Check the power wires for reversed polarity and ensure they are connected to the signal terminals. Also, check for an open diode across the test terminal.
Why is milliamps reading low or high on Emerson Transmitter?
If your Emerson Transmitter's milliamps reading is either too low or too high, verify the applied pressure and the 4 and 20 mA range points. Also, ensure the output is not in an alarm condition. Perform an analog trim and check that the power wires are connected to the correct signal terminals (positive to positive, negative to negative) and not the test terminal.
What causes Emerson Transmitter not to respond to pressure changes?
If the Emerson Transmitter will not respond to changes in applied pressure, check the impulse piping or manifold for any blockage. Verify that the applied pressure is between the 4 and 20 mA points, and ensure that the output is not in an alarm condition. Also, verify the transmitter is not in loop test mode or multidrop mode, and check the test equipment.
What to do if digital pressure variable reading is low or high on Emerson Transmitter?
If the digital pressure variable reading is low or high on your Emerson Transmitter, check the impulse piping for blockage or low fill in the wet leg. Verify the transmitter is calibrated properly and check the test equipment for accuracy. Also, verify the pressure calculations for the application.
Why is the voltage reading low or high on Emerson Transmitter?
If the Emerson Transmitter voltage reading is low or high, verify the applied pressure and the 1–5 Vdc range points. Ensure the output is not in an alarm condition, perform an analog trim, and check that the power wires are connected to the correct signal terminals (positive to positive, negative to negative) and not the test terminal.
What to do if Emerson Transmitter does not respond to changes in applied pressure?
If the Emerson Transmitter will not respond to changes in applied pressure, check the impulse piping or manifold for blockage. Verify that the applied pressure is between the 1–5 Vdc points, and ensure the output is not in an alarm condition. Also, verify the transmitter is not in loop test mode or multidrop mode, and check the test equipment.
General| Model | 2051 |
|---|---|
| Category | Transmitter |
| Measurement Type | Pressure |
| Accuracy | ±0.075% of span |
| Output Signal | 4-20 mA, HART |
| Protocol | HART |
| Housing Material | Aluminum or Stainless Steel |
| Pressure Type | Differential, Gage, Absolute |
| Process Connection | 1/4 in. NPT, 1/2 in. NPT |
| Electrical Connection | 1/2 NPT |
| Material | 316L SST, Alloy C-276 |
| Operating Temperature | -40 to 185 °F (-40 to 85 °C) |
| Power Supply | 10.5 to 42 V DC |
| Enclosure Rating | Type 4X, IP66 |
| Process Temperature Range | -40 to 120°C (-40 to 248°F) |
Ensures correct device driver is loaded on host systems for proper communication before installation.
Covers critical safety warnings regarding explosions, process leaks, and electrical shock hazards.
Details thread forms for conduit entries and requirements for hazardous location installations.
Verifies and guides the download of the correct device driver (DD/DTM) for system communication.
Presents a table mapping device revisions to specific drivers and documentation.
Provides a visual step-by-step flowchart for the entire transmitter installation process.
Specific instructions for installing the transmitter in liquid service, including tap placement and orientation.
Specific instructions for installing the transmitter in gas service, including tap placement and orientation.
Specific instructions for installing the transmitter in steam service, including tap placement and filling impulse lines.
Illustrates various panel and pipe mounting configurations, including different flange types.
Details bolt material, installation procedures, and torque specifications for transmitter assemblies.
Depicts typical transmitter assemblies with required bolt lengths for correct assembly.
Emphasizes correct O-ring usage with flange adapters to prevent leaks and describes O-ring types.
Covers thread sealing requirements for conduit entries to meet NEMA and IP ratings.
Explains the positioning of the low side pressure port and vent path for in-line transmitters.
Details how to use the removable commissioning tag for proper device identification in the field.
Provides instructions for rotating the transmitter housing to improve access or display visibility.
Guides on configuring the simulate and security switches prior to transmitter installation.
Illustrates transmitter wiring terminals and provides guidance for connecting power leads.
Details best practices for signal wiring and essential grounding for reliable segment communication.
Specifies the required DC voltage range for transmitter operation and full functionality.
Explains the necessity of a power conditioner and proper grounding for shield wires to prevent noise.
Covers Fieldbus segment termination requirements and the 'Locate Device' function.
Guides the user through configuring the Analog Input (AI) block using guided or manual setup.
Presents a menu tree to visualize the navigation path for transmitter configuration settings.
Details verifying device tag, checking switches, and disabling software write protection before configuration.
Instructions for using the guided setup process to configure the AI Block Unit Setup.
Steps for manual configuration of the AI Block, including setting it to 'Out of Service' mode.
Details setting L_TYPE for signal conditioning and XD_SCALE for range scaling.
Covers setting OUT_SCALE, configuring LOW FLOW CUTOFF, and adjusting damping values.
Guides on configuring parameters to be displayed on the LCD and their scrolling behavior.
Covers reviewing transmitter settings, placing it in service, and enabling software write protection.
Provides specific parameter values and units for configuring a pressure transmitter.
Provides specific parameter values and units for configuring a DP flowmeter.
Instructions on how to select and display pressure readings on the transmitter's LCD.
Explains the process of performing a zero trim to compensate for mounting position and line pressure effects.
Information regarding the EU Declaration of Conformity and applicable EU Directives.
Confirms the transmitter meets requirements for ordinary locations as per NRTL testing.
Details USA-specific certifications including Explosionproof, Dust-Ignitionproof, and Intrinsic Safety.
Lists Canadian certifications for Explosionproof, Intrinsic Safety, and Nonincendive use.
Provides details on ATEX flameproof and intrinsic safety certifications for the European market.
Covers ATEX Intrinsic Safety (FISCO) and Type n certifications with special safety conditions.
Details the ATEX Dust certification, including its specific conditions for safe use.
Details IECEx Flameproof certification, including process temperature classifications.
Provides information on IECEx Intrinsic Safety certification and associated input parameters.
Covers IECEx FISCO certification with input parameters and special conditions for safe use.
Details Brazil's INMETRO Flameproof certification and its specific safety conditions.
Covers Brazil's INMETRO Intrinsic Safety and FISCO certifications with input parameters.
Details China's Flameproof certification, including special conditions for use and temperature ranges.
Covers China's Intrinsic Safety certification, including special conditions and temperature ranges.
Provides details on Japan's Flameproof certification standards.
Details EAC Flameproof and Intrinsically Safe certifications with special conditions for safe use.
Lists various combinations of certification standards, including IECEx Dust.
Details additional type approvals from recognized organizations like ABS, Bureau Veritas, DNV, and Lloyds Register.
Contains the EU Declaration of Conformity stating compliance with EU Directives and harmonized standards.
Details compliance with EMC, PED, and ATEX Directives, including their validity periods and standards.
Lists ATEX Type n, Flameproof, and Dust certificates with their respective harmonized standards.
Identifies the Notified Bodies involved in the conformity assessment for PED and ATEX directives.
Lists Rosemount 2051 parts and their concentration of hazardous substances per China RoHS regulations.
Provides contact information for Emerson Process Management offices worldwide.
Lists Emerson's trademarks, service marks, and important legal disclaimers.
