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) |
