Technical Data
CompareContinuous / Solids
| Measuring Principle | Electromechanical |
| Characteristic / Application | Electromechanical level measurement in bins or silos with dusty, fine-grained or coarse grained bulk solids |
| Specialities | Switch to indicate need of maintenance (predictive maintenance) |
| Supply / Communication | 90... 253V, 50/60Hz 20 - 28 VDC |
| Accuracy | +/- 2.5 cm (0.98") |
| Ambient temperature | -40°C ... +60°C (-40°F...140°F) |
| Process temperature | -20°C ... +150°C (-4°F...302°F) |
| Process pressure / max. overpressure limit | 0.8 ... 1.1 bar abs. (11.6psi ...15.95psi abs.) |
| Main wetted parts | Aluminium, Steel, Stainless steel |
| Process connection | Flange DN100 PN16 / 4" |
| Blocking distance | Top: 500 mm (20") |
| Max. measurement distance | 42 m (138 ft) |
| Communication | 0/4...20 mA |
| Certificates / Approvals | ATEX |
The Silopilot FMM20 is an economical level measuring instrument for measuring dusty, fine or coarse granular solids in box-type silos or bins, or for measuring liquids in tanks.
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Advantages
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Level measurement unaffected by product characteristics, up to 32m
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Accuracy: ±2.5cm or ±1 pulse
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Process temperature up to 150°C
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One-piece transmitter with 0/4-20mA current output and an additional freely programmable signal output (e.g. counter pulse).
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Convenient menu-guided operation via a four-line text display.
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Complete electronic digital minimum fail-safe mode, so that no moving parts enter the silo outlet and the conveying unit is not affected.
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Power supply 90~253VAC (wide-range voltage supply unit) and 24 VDC, depending on the selected version.
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Application areas
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The Silopilot T FMM20 is an electromechanical level measuring system for light granular solids such as wheat, plastic granules and powders. Based on weight sensing, it measures the level in coal bunkers or silos containing dust, fine or coarse granular solids.
Spare Parts & Accessories 156
156 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 71031648 | *** Wiper Cable Spare PartUsage: FMM20. | Details |
| 71031647 | *** Wiper Cable Spare PartUsage: FMM20. | Details |
| 52028080 | Connector 70°C FMM20/FMM50Usage: FMM20, FMM50. | Details |
| 52028081 | Wiper, cable, spare partsUsage: FMM20, FMM50. | Details |
| 71031701 | FMM20 15 m tape measureUsage: FMM20. | Details |
| 71031702 | measuring tapeUsage: FMM20. | Details |
| 71031703 | *** 15 m measuring wireUsage: FMM20. | Details |
| 71031704 | *** measuring cableUsage: FMM20. | Details |
| 71033494 | *** Counterweight Mounting AccessoryUsage: FMM20. | Details |
| 71033495 | *** Counterweight Mounting AccessoryUsage: FMM20. | Details |
| 52028085 | Bellows max 150/230 °C, FMM20/FMM50Usage: FMM20, FMM50. | Details |
| 52028084 | Bellows max 70°C, FMM20/FMM50Usage: FMM20, FMM50. | Details |
| 71031631 | Wiper beltUsage: FMM20. | Details |
| 71031632 | Wiper beltUsage: FMM20. | Details |
| 71031629 | Wiper beltUsage: FMM20. | Details |
| 71031630 | Wiper beltUsage: FMM20. | Details |
| 71031623 | Wiper beltUsage: FMM20. | Details |
| 71031624 | Wiper beltUsage: FMM20. | Details |
| 71031621 | Wiper beltUsage: FMM20. | Details |
| 71031622 | Wiper beltUsage: FMM20. | Details |
Configurator / Comparison
Accessories / Spare parts
Source:Endress+Hauserpublic information from the website
Manuals & Documents 4
All documents for this modelCase Studies
Municipal Wastewater Treatment · rotary — Application Case
Customer Profile
The typical setting in Municipal Wastewater Treatment is the inlet, biological and outlet stages of a municipal plant. The measuring point is rotary; the focus is rotating-paddle high and low level detection in silos.
Key Difficulties
Conditions are high solids and corrosive fractions, with large diurnal flow swings and, on top of that, effluent parameters drift and probes foul with sludge and biofilm, which a standard configuration cannot handle for long. The design therefore starts with choosing paddle and bearing type by bulk density, particle size and temperature.
Implementation
The scope ran through the level range: level solution matched to the actual tank and silo geometry. Technically it hinges on choosing paddle and bearing type by bulk density, particle size and temperature, and on these requirements: stable compliance with Grade 1A discharge limits and online data reporting.
Customer Benefit
In practice this means maintenance-free in dusty duty, with timely blockage alarms, which cut the workload on the site maintenance team.
Food & Beverage · rotary — Application Case
Project Background
The project covers dosing, pasteurising, filling and CIP stages. The work centres on rotary and the core task is rotating-paddle high and low level detection in silos.
Operating Challenges
The medium and duty are characterised by syrups, dairy and beverages that scale easily, under strict hygienic requirements, and frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. So rotary cannot be specified generically — it calls for choosing paddle and bearing type by bulk density, particle size and temperature.
Solution
The Ainstru engineering team worked through the level range: level solution matched to the actual tank and silo geometry. The configuration involves choosing paddle and bearing type by bulk density, particle size and temperature, with these requirements in view: food-safety and hygienic design per 3-A / EHEDG.
Results
Since start-up the system has run steadily; the practical result is maintenance-free in dusty duty, with timely blockage alarms.
Chemical & Pharmaceutical · rotary — Application Case
Project Overview
The site is reactors, metering vessels and finished-product tanks. The customer wanted rotary properly configured on the existing plant, with the aim of rotating-paddle high and low level detection in silos.
Technical Challenges
What actually causes trouble is highly corrosive media with solvents and crystallisation, partly in explosive atmospheres, and corrosion plus Ex protection shortens instrument life and makes downtime costly. All of this means the rotary configuration has to involve choosing paddle and bearing type by bulk density, particle size and temperature.
Configuration
Supply and installation were organised through the level range: level solution matched to the actual tank and silo geometry. On site this meant choosing paddle and bearing type by bulk density, particle size and temperature, checked line by line against: Ex certification and GMP traceability of records.
Performance
After commissioning the outcome is maintenance-free in dusty duty, with timely blockage alarms, and the readings are now used for process tuning.
Power & Energy · rotary — Application Case
Site Conditions
This is a Power & Energy customer whose plant is at boiler feedwater, turbine condensate and FGD/DeNOx systems. The main task was rotating-paddle high and low level detection in silos.
The Problem
The difficulty lies in high temperature and pressure with both steam and saline water; at the same time drift under high temperature and pressure, with very costly unplanned outages. Specification therefore means choosing paddle and bearing type by bulk density, particle size and temperature.
What We Did
We took a level range approach — level solution matched to the actual tank and silo geometry. Delivery was built around choosing paddle and bearing type by bulk density, particle size and temperature, with point-by-point checks on: compliance with power-industry codes and unit availability targets.
Operating Outcome
In service the system performs as intended — maintenance-free in dusty duty, with timely blockage alarms, with routine maintenance falling noticeably.
