Continuous level measurement for liquids
The device is independent of the dielectric constant (DC) as of a liquid conductivity of 100 µS/cm and allows measurement of various liquids without the need for recalibration.
• Process connections: Flanges and threads
• Process pressure: Vacuum to +100 bar (+1450 psi)
• Measuring range: 0.1 to 4.0 m (0.3 to 13 ft)
• Temperature: –80 to +200 °C (–112 to +392 °F)
• International explosion protection certificates, overfill prevention WHG, SIL, hygienic certificates, marine approvals
• Use also in safety systems requiring functional safety to SIL2 in accordance with IEC 61508
• Reliable and universal application thanks to a wide range of certificates and approvals
• No calibration necessary (factory preconfiguration). No calibration necessary for media with a conductivity of 100 µS/cm and higher
• Material in contact with the process made of corrosion-resistant material, FDAlisted materials
• Menu-guided local configuration via plain text display (optional)
• Two-stage overvoltage protection
Parameter | Details |
Product Name | Liquicap FMI51 |
Measuring Principle | Capacitance / RF admittance (fully insulated rod probe) |
Application | Continuous level & interface measurement for liquids; ideal for buildup-prone media, high viscosity, high temperature/pressure |
Probe Type | Fully insulated rigid rod (PTFE/PFA insulated) |
Measuring Range | 0.1 … 4.0 m (0.3 … 13 ft) |
Accuracy / Repeatability | ±0.1% of span |
Process Temperature | -80 … +200 °C (-112 … +392 °F) |
Process Pressure | Vacuum … 100 bar (Vacuum … 1450 psi) |
Medium Conductivity | ≥ 100 µS/cm (dielectric constant independent) |
Process Connection | Thread (G/NPT 1½", 2"), Flange, Tri-Clamp (hygienic) |
Wetted Materials | Probe: 316L SS + PTFE / PFA insulation Seal: Viton, EPDM |
Electronics | FEM51 (2-wire AC / 2-wire DC options) |
Supply Voltage | • AC: 19 … 253 VAC• DC: 11.4 … 35 VDC |
Output Signal | 4–20 mA HART (2-wire) |
Power Consumption | < 1.0 W |
Load (DC) | Max. 600 Ω |
Response Time | ≤ 0.5 s |
Housing | Aluminum (standard), 316L SS (option) |
Protection Class | IP66 / IP67 / NEMA 4X |
Ambient Temperature | -40 … +80 °C (-40 … +176 °F) |
Certifications & Approvals | ATEX, IECEx, FM, CSA, SIL 2 (IEC 61508), WHG, 3A, EHEDG, FDA, Marine |
Key Features | • Insensitive to product buildup• No recalibration (≥100 µS/cm)• Insensitive to dielectric constant• High temp/pressure rated |
Packaging: Original box
![]()
Esito (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
We can offer rosemount, Endress+Hauser, yokogawa, Siemens, ABB,Fisher,Koso, Samson, Abzil, NELES,UE etc, Brands.
![]()
![]()
![]()
Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information
Q: What is the delivery time?
A:The products in stock will be shipped after receiving the payment, and the products that need to be ordered are subject to the factory time.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing.
Q: How about the payment terms?
A:You can choose T/T.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.
Q:After sales and warranty?
A: We provide one year warranty lifetime technical support services.
MaoGu Building Weicheng District, Weifang City, Shandong Province,China
Copyright © 2025 Esito (weifang) Automation Equipment Co., Ltd. All Rights Reserved. Powered by HiCheng