Galltec-Mela logo Humidity measuring technology - high quality

Technical data

Relative Humidity
0...100 % RH
Temperature
-30 ...+80°C
Signal output
0 …1000 Ω linear
100 …138,5 Ω linear
0 …100 Ω linear
0 …200 Ω linear
Supply voltage
15 … 30 V DC / 24 V AC ±10%
15 … 30 V DC / 24 V AC
15 … 30 V DC

(T)FM80 OEM - duct version

OEM duct version with Polyga® measuring element

Features

  • Accuracy: ±2.5 % RH
  • very high accuracy in high humidity
  • washable measurement element
  • with the robust Polyga® humidity measuring element
  • Long-term stability
  • high-grade steel sensor material
  • with resistance output

Typs:
FM80 – Humiditymodule
TFM80 – Humidity-Temperature-Module

TFM80 Module for integration in a wide range of customer-specific standard products.
With resistance output, the module does not require its own power supply.

Universal POLYGA® transmitters demonstrate excellent measuring properties and accuracy in high humidity. They can be adjusted and cleaned in water. Their outstanding durability, reliability and robustness make them the classic choice for applications with extended high humidity.

Remarkably straightforward and durable design
The Polyga® measuring element is a unique hygroscopic fibre that changes its length depending on the humidity. The changes in the length are converted into electrical resistance values that can either be directly measured (passive transmitters) or converted further into standard analogue output signals (active FG80 transmitters).

Waterresistent and maintenance-free
It has unparalleled long-term stability and is 100 % waterproof, which makes it ideal for use in high humidity. In pure ambient air the measurement element is maintenance-free.

Often used in

  • Agriculture & food industry
  • Building construction
  • Cooling & air conditioning
  • Electric control & switchboard cabinets
  • Green house technology
  • HVAC and building automation
  • Museums & archives
  • Offices & public buildings
  • Semi-industrial applications
  • Shipping containers (or refrigerated containers)
  • Storage
  • Warehousing
  • Wind turbines