Displacer level switch Fisher™2100
floatfor liquidscorrosion-resistant

displacer level switch
displacer level switch
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float, displacer
for liquids
Other characteristics
explosion-proof, ATEX, corrosion-resistant
Process pressure

150 psi


The Fisher 2100 on/off pneumatic switch and 2100E electric switch sense high or low liquid levels. Typically, these switches pneumatically or electrically operate safety shutdown systems for field processing equipment in oil and gas production applications. The 2100 and 2100E switches use a displacer-style sensor located in an external cage that mounts on the outside of a vessel. Unless otherwise noted, all NACE references are to NACE MR0175-2002. Specifications Area Classification -2100: Group II Category 2 Gas and Dust -2100E: Explosion Proof, Flame Proof, Dust Ignition Proof Certifications -2100: PED, CUTR, ATEX 2100E: CSA, FM, ATEX, IECEx, UL, CUTR, PED Data Interface -2100E is wired Diagnostics -No Mounting Type -Process Vessel Mounted Operating Temperature -Standard Temperature Position Control -On/Off Power Source -125/250 VAC, 28 VDC Process Control -Level Supply Media -Air, Natural Gas Other Configurations -Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product. Features -The switch is isolated and sealed from the process through a corrosion-resistant displacer and torque tube assembly for maximum reliability. -Materials are available for applications handling sour fluids and gases. These constructions comply with the metallurgical requirements of NACE MR0175-2002. -The 2100 and 2100E switch construction comes in a left-hand as well as a right-hand mounting version. -The explosion-proof, hermetically-sealed 2100E switch is offered as both a factory mounting and as an electric switch retrofit to the proven 2100 switch.
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