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Process Control Instruments, Field Devices and Industrial Automation
PRODUCTS & SERVICES is a provider of process control instruments and field devices for Oil & Gas, Industrial Machinery, Pipelines, Custody Transfer, Tank Gauging, Waste Processing, Water Treatment Plants, Burner Management Systems and Incinerators, Conveyor Control, Food & Beverage, Motor, Pump & Compressor Control, Wireless Telemetry, Data Logging, Real-Time Process Data to Web.

We are an online distribution channel of genuine manufactured instruments such as

  • Flow Transmitters, Indicators, Sensors and Switches.
  • Pressure Switches, Indicators and Transmitters.
  • Level Switches, Indicators and Transmitters.
  • Temperature Elements, Switches and Transmitters.
  • Mass Flow Meters.
  • Density Meters.
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EH Soliwave FQR56 Microwave barrier emitter for non-contact point level detection in bulk solids. Up to 100m measurement range. Suitable as level limit switch. ATEX, CSA and IECEx Approvals.

Part# with Options:        FQR56-AAAAAVEA1
Price with Options:        Please Email us your request for quote   


(1) Approval for EH FQR56 & FQR56
Power Supply
(2) Power Supply for EH FQR56, FDR56 & FTR20
(3) Housing for EH FQR56
Electrical Connection
(4) Electrical Connection for EH FQR56, FDR56 & FTR20
Process Connection
(5) Process Connection for EH FQR56 & FDR56
Window Transmission
(6) Window Transmission for EH FQR56 & FDR56

  Availability 2 Weeks  ]


The Soliwave microwave barrier uses a contact-free procedure for detection. It can be installed in contai- ners, conduits, shafts or on free fall shafts. It is possible to take a measurement through non-metallic container materials from the outside.

Suitable as level limit switch for controlling and counting all types of bulk solids or piece goods (such as bags or boxes). Typical bulk solids include:

  • Wood chips, wood dust or flour
  • Plaster, cement, ash
  • Paper or cardboard shred
  • Gravel, sand
  • Dried powders in general

The FQR56 emitter and FDR56 transceiver are compact transmitters with integrated power unit, and the transceiver has an additional integrated switching amplifier, which ena- bles easy electrical installation onsite.

The microwave barrier has an optional analog output (4 20 mA current output) for analysis of build-up, fouling etc. This allows, for example, the progress of fouling to be evaluated from "uncontaminated" to "contaminated" (the limits can be configured individually).

Your benefits
  • Flush-mounted installation, non-contact installation possible
  • Easy installation using R 11⁄2 or 11⁄2 NPT thread or suitable installation brackets
  • Electronics housing can be rotated by 360, allowing orientation into optimum position after installation
  • Mechanical robustness
    • No wear
    • Process-wetted ceramic sensor diaphragm (optional)
    • Long service life
    • Maintenance-free
  • Indication of the signal strength on the transceiver
  • Adjustable sensitivity
  • Direct connection of the supply voltage (emitter and transceiver separately or together)
  • Mechanically compatible to FQR50/FDR50 microwave barrier, existing process connections can continue to be used; likewise, accessories such as adapter flanges, installation brackets and sight glasses can still be used.
  • Conforms to ATEX, CSA and IECEx
Measuring principle

The FQR56 emitter puts out the microwave signal via an integrated horn antenna. The FDR56 transceiver directly opposite detects this signal and generates the selected output signal (relay, solid-state relay or 4 - 20 mA current output).

The range of the path is influenced by the different types of materials. The attenuation of the microwaves here depends on the electric characteristics of the attenuating material. Materials with the capacity to con- duct electricity, such as metals, reflect the waves, while other materials with lower conductivity only weaken them or are even penetrated. The attenuation of

The complete measuring system for limit detection consists of an FQR56 emitter and a FDR56 transceiver.

Measuring Principle Microwave barrier
Characteristic / Application Transmitter
Non-contact point level detection and flow monitoring
Detecting, counting and positioning of objects
Monitoring of material transfer points
Detection and analysis of deposits and contamination

Non-contact installation (transmission window) or front-flush installation (contact)
Specialities Measurement range: max. 100 m
Supply / Communication 85 ... 253VAC
20 ... 30 VDC/ 20 ... 60 VAC
Ambient temperature -40 C...+70 C
(-40 F...+158 F)
Process temperature Non-contact installation: any
Within installation:
-40 C...+70 C (-40 F...+158 F)
With HT-Adapter:
up to +450 C (+842 F)
Process pressure absolute / max. overpressure limit Non-contact installation: any
Within installation:
0.5 bar...6.8 bar (7.2 psi...99 psi) abs.
With HD-Adapter:
up to +21 bar (+305 psi) abs.
Min. density of medium Solid weight: > 10 g/l
Main wetted parts Non-contact installation:
no wetted parts
Within installation:
316Ti or Aluminium;
PTFE or Ceramic
Process connection 1-1/2" R, 1-1/2" G, 1-1/2" NPT
Process connection hygienic Non-contact installation
Certificates / Approvals ATEX, CSA C/US, IEC Ex
Design approvals EN10204-3.1
Options Sight glass
High temperature adapter
High pressure adapter
Installation bracket
FAR50, FAR51, FAR52, FAR53, FAR54, FAR55
Components Transceiver: FDR56
Application limits Solid weight: < 10 g/l

    FDR56-AA1AAAVEA1 EH Soliwave FDR56 Microwave barrier receiver for non-contact point level detection in bulk solids. Up to 100m measurement range. Suitable as level limit switch. ATEX, CSA and IECEx Approvals...

    FTR325-B1A1 EH Nivotester FTR325 Microwave Barrier Switch amplifier for Soliwave FQR50/FDR50. 1 channel. Relay and DPDT communication. Rail Mounting. SPDT level and SPST alarm/level outputs. ATEX and IECEx Approvals...

B2B Checkout Options: Designated Carrier and Tax-Exempt purchase
Payment Options: Credit Card, Credit Card Over the Phone, PAYPAL, Wire Transfer, Check and Money Order

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EH Solimotion FTR20 Microwave non-contact flow indicator for monitoring transport processes for bulk solids. R 1 1/2 or NPT 1 1/2 Process Connection. ATEX, CSA and IECEx Approvals.




EH Soliwave FDR56 Microwave barrier receiver for non-contact point level detection in bulk solids. Up to 100m measurement range. Suitable as level limit switch. ATEX, CSA and IECEx Approvals.



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