2140 SIL Vibrating Fork Level Detector
SKU: 2140
Functional-safety-certified vibrating fork level detector — same fork-resonance core as the 2130 with full IEC 61508 SIL 2 (single) / SIL 3 (redundant) certification for safety-instrumented systems. Best for overfill prevention, dry-pump protection, and other safety-critical applications where the underlying detection technology must carry an independent third-party safety certification. HART or two-channel digital output with diagnostic coverage.
Contact us for pricing on this product.
Functional-safety-certified vibrating fork level detector — same fork-resonance core as the 2130 with full IEC 61508 SIL 2 (single) / SIL 3 (redundant) certification for safety-instrumented systems. Best for overfill prevention, dry-pump protection, and other safety-critical applications where the underlying detection technology must carry an independent third-party safety certification. HART or two-channel digital output with diagnostic coverage.
The Rosemount 2140 SIL Vibrating Fork Level Detector 2140 is manufactured by Rosemount. Valley Instrument Service is an authorized Rosemount dealer offering full sales support, NIST-traceable calibration, and expert technical assistance.
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Contact Us or Call (661) 327-8681Configure Your Rosemount 2140 Vibrating Fork Liquid Level Detector
Premium vibrating-fork liquid level switch with HART communication and electronic self-diagnostics. Successor to the 2120 with extended self-checking, switchable HART 5/HART 7, and SIL 2 capability. Used for high/low-level alarms, overfill prevention, and pump dry-run protection across hydrocarbon and water-based applications.
Required Specifications
10 of 10 selected- Profile:
- AStandard monitoring and control application
- Housing Material:
- AAluminum Alloy ASTM B85 A360.0
- Conduit Entry / Cable Threads:
- 11/2 inch NPTprice on request
- Operating Temperature:
- MMid-Range: -40° to 356° F (-40° to 180° C)
- Materials of Construction: Process Connection / Fork:
- HAlloy C (UNS N10002), Alloy C-276 (UNS N10276), solid+$1,090.48
- Process Connection Size:
- 93/4-in. / 19 mmprice on request
- Process Connection Type:
- BBSPT (R) thread
- Fork Length:
- A0000Standard length 1.7 inches (44 mm)
- Surface Finish:
- 1Standard surface finish
- Certifications:
- NANo Hazardous Locations certifications
Rosemount is configurator-heavy and quote-only. Valley Instrument verifies option compatibility, lead time, and pricing before confirming your order.
Related Products
2110 Vibrating Fork Level Switch
Compact, low-cost vibrating fork level switch — point-level detection for liquids using fork vibration frequency change when wet vs dry. Single direct-load relay output (DPCO or PNP/NPN), no moving parts, no calibration, immune to flow turbulence and aerated/foaming liquids that defeat float and capacitance switches. Best for high/low alarms, pump dry-run protection, and overfill prevention on storage tanks. Common process connections (NPT, BSP, Tri-Clamp, flanged) and fork extensions to 4 m. The workhorse Rosemount level switch for general-process duty.
2120 Vibrating Fork Level Switch
Mid-tier vibrating fork level switch — same fork-resonance principle as the 2110, with expanded electronics options. Choose direct-load relay, 8/16 mA load-driven output for two-state PLC inputs, NAMUR-namur compatibility, or remote-electronics housing. Magnetic test point lets technicians verify operation without process intervention. Used where the 2110's basic relay isn't sufficient — load-driven inputs, harsh ambient, hazardous-area installations.
2130 HART Vibrating Fork Level Switch
HART-enabled vibrating fork level switch — same proven fork-resonance technology as the 2110/2120, with two-wire 4-20 mA + HART communication for remote configuration, diagnostics, and trending of fork frequency. Continuously reports fork health (build-up detection, corrosion warning) so a maintenance team can replace before the switch fails. Best for plants with HART-aware asset-management systems (AMS, FieldComm).
2160 Wireless Vibrating Fork Level Switch
WirelessHART-powered vibrating fork level switch — same proven fork-resonance technology as the 2110/2120 family but with battery-powered WirelessHART radio in place of wired output. Eliminates cable and conduit runs for remote level monitoring on tanks far from the control room. 7+ year battery life under typical update rates. Pairs with an Emerson Wireless 1410S Gateway for the WirelessHART network backhaul. Common application: tank-farm overfill alarms where wired installation is cost-prohibitive.