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burnsmichelleAug 12, 2025
What to do if my Emerson Switch does not switch?
- TtaraberryAug 12, 2025
If your Emerson Switch isn't switching, start by checking the power supply. Also, verify the load on the direct load switching electronics model.
What to do if my Emerson Switch does not switch?
If your Emerson Switch isn't switching, start by checking the power supply. Also, verify the load on the direct load switching electronics model.
Why is my Emerson Rosemount 2120 Switch switching faulty?
If the Emerson Switch exhibits faulty switching due to turbulence, try setting a longer switching time delay. If excessive electrical noise is the cause, suppress the source of the interference. If the cassette has been fitted from another Rosemount 2120, fit the factory supplied cassette and then calibrate.
Why is there a five second delay on my Emerson Rosemount 2120 Switch?
This five-second delay after changing the mode or delay on your Emerson Switch is normal and occurs whenever you make changes to the settings.
What to do if the LED is flashing once every four seconds on Emerson Rosemount 2120?
If the LED on your Emerson Switch is flashing once every four seconds, examine the electrical installation for a load fault, meaning the current is too high or there's a short-circuit.
How to fix incorrect switching on Emerson Rosemount 2120?
If you notice incorrect switching with your Emerson Switch, check the wiring connections.
How to clean thick encrustation on the forks of Emerson Rosemount 2120 Switch?
Carefully clean the fork of the Emerson Switch. Consult the Maintenance section for detailed instructions.
What to do if my Emerson Rosemount 2120 Switch is not switching?
If your Emerson Switch isn't switching, there are several potential causes. First, check the power supply, and if it's a direct load switching electronics model, check the load. If the LED is flashing, consult the LED indication section. A damaged fork could also be the problem, in which case you should replace the 2120. If there's thick encrustation on the fork, carefully clean it. Finally, note that a 5-second delay when changing mode/delay is normal, so simply wait 5 seconds.
What to do if my Emerson Rosemount 2120 is switching incorrectly?
If your Emerson Switch is switching incorrectly, set the correct mode on the electronics cassette.
General| Technology | Vibrating Fork |
|---|---|
| Application | Liquid level detection |
| Housing Material | Aluminum or Stainless Steel |
| Output | Relay |
| Process Temperature | -40 to 150 °C (-40 to 302 °F) |
| Process Pressure | Up to 100 bar (1450 psi) |
| Wetted Material | 316L Stainless Steel |
| Process Connection | Threaded, Flanged, Hygienic |
| Ingress Protection | IP66/67 |
| Certifications | CSA, FM, ATEX, IECEx |
Explains correct fork alignment for pipe and vessel installations.
Details mounting the threaded version, including sealing and connections.
Procedure for installing the level switch with a threaded flange.
Procedure for mounting the flanged version of the level switch.
Procedure for mounting the Tri Clamp version of the level switch.
Covers cable selection, glands, power supply, and hazardous area considerations.
Introduces wiring diagrams for various electronics cassettes.
How to configure the output mode and time delay for the level switch.
Explains the meaning of LED indicators and their flash rates for operating status.
How to use the magnetic test point for functional testing of the device.
Guidelines for routine maintenance and visual inspection of the level switch.
Information on obtaining spare parts for the Rosemount 2120 level switch.
Procedures for replacing and calibrating electronics cassettes.
Guide to identify and resolve common faults and issues with the level switch.
