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Endress+Hauser FTM50-AGG2A4A32AA Liquiphant M vibrating fork level switch. 4-20mA HART, G1½" PN40, 316L wetted parts, -40 to 150°C, SIL 2/3, for liquid point level.
Product Overview
The Endress+Hauser FTM50-AGG2A4A32AA is a vibrating fork (tuning fork) level switch from the Liquiphant M FTM50 series, designed for point level detection of liquids (presence/absence) in tanks, pipes, and sumps. It features a G1½" PN40 process connection, 316L stainless steel wetted parts, and a 4-20mA HART output with integrated diagnostics. The fork frequency shifts when covered by liquid, triggering a solid-state relay and analog signal — unaffected by turbulence, foam, bubbles, or dielectric changes down to εᵣ > 1.5. This variant is SIL 2/3 certified and suitable for safety-relevant alarm/shutdown loops.
G 1½" (BSP Parallel) Female Thread, PN 40 (ISO 228-1)
Fork Length (Immersion)
~67 mm (standard FTM50 short fork — verify from full code)
Wetted Parts Material
316L (1.4404) Stainless Steel
Housing Material
Aluminum (Painted) or Stainless Steel (optional)
Process Temperature Range
-40 … +150 °C
Process Pressure Range
-1 … +64 bar (PN 40 @ 20°C, derated with T)
Medium Density (Min.)
≥ 0.5 g/cm³ (typical for fork — consult datasheet for viscous media)
Protection Rating
IP66 / IP67, NEMA 4X (with proper cable gland)
Approvals / Area
ATEX, IECEx (Ex d / Ex e versions available), FM, CSA, WHG (overfill prevention)
Key Features
Fork Physics — Immune to Process Noise: Vibration damping only occurs when both tines are covered by liquid — ignores foam, bubbles, turbulence, and dielectric changes (εᵣ > 1.5).
No Calibration Required: Factory-tuned — install and wire; no sensitivity adjustment or teach-in needed.
SIL 2/3 Capable: Suitable for Safety Instrumented Functions (SIF) in overfill or dry-run protection loops.
HART Diagnostic Feedback: 4-20mA HART signal reports switch state, fork frequency, and device health to DCS/AMS for predictive maintenance.
Applications
Overfill / Low-Level Alarms: High-level alarm in storage tanks, day tanks, and IBCs.
Pump Protection: Dry-run detection in suction lines and pump sumps (low-level cut-out).
Interface / Emulsion Detection: Where media density difference is sufficient (liquid vs. gas or light/heavy liquid interface — limited application).
Hazardous Area Service: With appropriate Ex certification — suitable for chemical, petrochemical, and pharmaceutical tank farms.
Note: For smaller process connections (G¾", G1", flange) or high-temperature/high-pressure versions, see other FTM50 variants. For bulk solid (powder/granule) vibrating forks, use the Soliphant FTM20/21 series. The exact fork length, housing type (Al vs. SS), and Ex approval are defined by the full 10-character suffix — the model shown represents a typical G1½" PN40, 316L, HART-output Liquiphant M.
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Agent,Importer,Trading Company
Year Established:
2012
Total Annual:
2000000-3000000
Employee Number:
>50
Ecer Certification：
Verified Supplier
A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,Pe... A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,Pe...
