Plato Meter F43

The Rhosonics Plato Meter F43 is a new generation instrument that can be used in the brewing process for wort extract concentration measurement. This product is suitable for generally all types of beers and provides highly accurate measurements up to 0.01 °Plato with a range up to 40 °Plato and above.

The Plato Meter F43 is the solution for modern breweries who are searching for a user-friendly, all-in-one, reliable, robust, real-time and in-line device to monitor their brewing processes.

Please contact us for more information, or click here to open the Plato Meter F43 brochure.

Features and benefits

The Plato Meter F43 offers:

  • the highest level of accuracy (+/- 0.01 °Plato)
  • a simple configuration and operation
  • a robust and compact all-in-one system
  • durable housing materials for a long lifespan
  • no moving parts, virtually no maintenance
  • an easy in-line installation into pipelines
  • aseptic and bypass-free installation
  • intelligent software for °Plato calculations
  • temperature compensation by Pt100 sensor
  • reproducible measuring results
  • continuous data & system logging
  • communication via HART/4-20 mA or RS232

Installation and applications

The Plato Meter F43 can be installed in the pipe via a VARIVENT™ connection where the sensor is clamped into for direct in-line measurements. The instrument can be used in various stages of the brewing process. Some of the typical applications are stated below.

  1. mash filter outlet pipe
  2. wort boiler circulation pipe
  3. wort cooler outlet pipe

Performance specifications


Ultrasonic sound velocity & Pt100 temperature measurement

Measuring range:

0 - 40 °Plato


Original Gravity, °Plato


Up to 0.01 °Plato or 0.5% of reading

Decay time:

1 to 99 s (adjustable)


Monochrome display with RGB backlight, behind glass cover


Push-buttons, HART, Computer

General specifications

Process conditions


max 16 bar

Temperature range:

0 °C to 110 °C (32 °F to 230 °F)

Wetted materials:

Ceramics Duplex 1.4462

Food Grade Sensor Parts

Electrical specifications

Power supply:

18 … 32 VDC, 8 Watt

Communication & Output:


or Modbus RTU/RS232

Data logging & fault reporting:

Internal memory, via USB memory stick

Cable entries:

3x M16X1.5, cable OD Ø 3-10 mm

Ambient conditions

Ambient temperature:

-20 °C to +65 °C (-4 °F to 149 °F)


< 95% at 40 °C (noncondensing)




Resistant to moderate / high vibration of pumps

Housing dimensions and weight


Approx. 6.4 – 6.8 kg

Housing materials:

Coated stainless steel


304 x 208 x 170 (L x W x H in mm)

Process connection:

VARIVENT™ pipe connection

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