Why is my Rosemount 8732 Fieldbus not communicating?
If the Rosemount Transmitter fieldbus is not communicating, it might be due to a disconnected fieldbus segment. Ensure the fieldbus segment is properly connected. Alternatively, the fieldbus segment power may be missing; verify the segment fieldbus voltage. In some cases, it could indicate an electronics failure, requiring replacement of the electronics.
What to do if Rosemount Transmitter Sensor Processor is not communicating?
If the sensor processor in your Rosemount Transmitter is not communicating, first check if the transmitter input power (AC/DC) is connected. If the LCD displays a message, the input power is applied. If the power is connected and the issue persists, it may be due to electronics failure, in which case you should replace the electronics.
How to fix a Coil Open Circuit on a Rosemount Transmitter?
If you encounter a coil open circuit error with your Rosemount Transmitter, start by checking the coil drive wiring and sensor coils, and perform sensor test A - Sensor Coil. If you are using another manufacturer’s sensor, change the coil current to 75 mA and perform a Universal Auto Trim to select the proper coil current. If the issue persists, it could be due to a circuit board failure, requiring replacement of the Rosemount 8732 Electronics. In rare cases, it may be due to a Coil Circuit OPEN Fuse, requiring a return to the factory for fuse replacement.
What causes 'Flow Rate > Sensor Limit' on a Rosemount 8732?
If the Rosemount Transmitter displays a flow rate exceeding the sensor limit, it may be because the flow rate is greater than 43 ft/sec. Try to lower the flow velocity or increase the pipe diameter. Also, check the coil drive wiring and sensor coils and perform sensor test A - Sensor Coil. Ensure the calibrator (8714B/C/D) is connected properly and that the calibrator is set to 30 FPS. Finally, verify that the correct calibration number is entered into the transmitter, replacing it with 1000005010000001 if necessary.
Why does my Rosemount Transmitter show a Universal Trim Failure?
A Universal Trim Failure on a Rosemount Transmitter can occur for several reasons. Ensure there is a known flow in the sensor while performing the Universal Auto-Trim calibration, and that the flow rate is constant during the procedure. Verify the flow in the sensor and perform the calibration again. Also, check that the wiring matches the appropriate wiring diagrams. Confirm that the correct sensor calibration number is entered into the transmitter, replacing it with 1000005010000001 if necessary. Ensure the correct sensor size is selected. If problems persist, perform sensor tests C and D.
How do I resolve an Auto Zero Failure on a Rosemount 8732 Transmitter?
If your Rosemount Transmitter is experiencing an Auto Zero Failure, ensure the flow is set to zero before performing the autozero function. Check if you are using unshielded cable and, if so, change the wire to shielded cable. Make sure that the sensor is filled with process fluid. For moisture related issues, see moisture problems in the “Accuracy Section”.
What causes a Reverse Flow reading on my Rosemount 8732 Transmitter?
If your Rosemount Transmitter indicates reverse flow, first verify the wiring between the sensor and transmitter to ensure the electrode or coil wires are not reversed. If the wiring is correct, and the flow is genuinely reversed, turn ON Reverse Flow Enable to read the flow. If the sensor is installed backwards, re-install it correctly, or switch either the electrode wires (18 and 19) or the coil wires (1 and 2).
What should I do if my Rosemount Transmitter shows 'Empty Pipe'?
The 'Empty Pipe' message on your Rosemount Transmitter will clear when the pipe is full. If the pipe is full and the message persists, check that the wiring matches the appropriate wiring diagrams. Perform sensor tests C and D. Ensure that the conductivity is greater than or equal to 5 microsiemens per cm. If the diagnostic is intermittent, adjust the tuning of Empty Pipe parameters.
What does Electronics Failure mean on my Rosemount Transmitter?
If your Rosemount Transmitter is showing an Electronics Failure, and it is due to electronics self check failure, replace the electronics.
Why does my Rosemount Transmitter show 'Electronics Temp Fail'?
If your Rosemount Transmitter displays 'Electronics Temp Fail', it means the ambient temperature has exceeded the electronics temperature limits. Move the transmitter to a location with an ambient temperature range of -40 to 165 °F (-40 to 74 °C).
General| Enclosure | Aluminum or Stainless Steel |
|---|---|
| Output | 4-20 mA with HART |
| Enclosure Rating | NEMA 4X, IP66 |
| Communication Protocol | HART, FOUNDATION Fieldbus |
| Hazardous Area Approvals | FM, CSA, ATEX, IECEx |
| Ambient Temperature Range | -40 to 65°C (-40 to 149°F) |
Outlines the steps for physically installing the magnetic flowmeter.
Details requirements for conduit connections, sealing, and cable routing.
Discusses cable selection, preparation, and routing for signal integrity.
Covers standards, power supply, conduit, and accessories for electrical connections.
Provides step-by-step instructions for connecting power to the transmitter.
Explains how to connect the transmitter to the FOUNDATION fieldbus segment.
Details steps to connect the 8732 to the FOUNDATION fieldbus segment.
Covers physical installation of the transmitter, including wiring and calibration.
Details the optional LOI for configuration and monitoring.
Covers essential configuration functions for all applications.
Sets the upper range value for analog output, preset to 30 ft/s.
Sets the lower range value for analog output zero, affecting span.
A 16-digit number identifying factory-calibrated flowtube sensors.
Explains how diagnostics verify transmitter function and identify errors.
Describes sensor characteristics and stores signature for verification.
Procedure for factory calibration of transmitter; requires 8714 Calibration Standard.
Enables calibration of non-Rosemount sensors or sensors not factory-calibrated.
Allows pulse-rate selection for sensor coils (5 Hz or 37 Hz).
Provides instructions for carefully handling and transporting sensors.
Details physical mounting of the sensor similar to installing pipe sections.
Guide for installing flange-type Rosemount 8705 and 8707 sensors.
Guide for installing the wafer-type Rosemount 8711 sensor.
Details installation procedures for sanitary sensors.
Explains sensor grounding importance and methods.
Highlights safety precautions for maintenance and troubleshooting.
Provides a guide to solve common installation problems.
Lists diagnostic messages and their potential causes and corrective actions.
Troubleshooting table for transmitter-related issues.
Provides step-by-step solutions for common problems.
Guides troubleshooting of installed sensors using tests.
Verifies flowmeter calibration without removing sensor from process.
Highlights safety precautions for digital signal processing operations.
Initializes zero function for optimum accuracy with 37 Hz coil drive.
Stabilizes output using damping and signal processing functions.
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