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 NPT
- 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 mm
- 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.