VHF band humidity sensor for measurement in liquids and solids MWM 230 PCE Instruments

Product description:

• This device allows the measurement of moisture in sand, peat and starch (conveyor belts).
• It is insensitive to heterogeneous inclusions of the materials to be measured.
• It does not require a large number of values to achieve a very low absolute maximum error, only 10 to 15 values are sufficient.
• It consists of a cylindrical head, equipped with a G1 ½" thread.
  • It has two welded rod sensors that establish contact with the material.
• It can work in line with vapours up to +90 °C (maximum +250 °C).
• Made of stainless steel, highly resistant to corrosion.
• Delivery includes:
  • 1 Humidity sensor PCE-MWM 230.
  • 1 Configuration software.
  • 2 x 5 m connection cables.
  • Instruction manual.

Technical data:

• Range 0 to 100 %.
• Maximum permissible error (absolute) Δ = 0.02 +0.025-W.
• Temperature range from 0 to +90 °C.
• Working temperature range from 0 to +115 °C.
• Temperature range in wood drying installations from 0 to +250 °C.
• Features continuous operation.
• Measuring rate from 0.3 to 1.5 s.
• Power supply 24 (18 to 36) V DC.
• Current consumption 200 mA.
• Warm-up (start-up) time of 30 min.
• Outputs type RS-485 Modbus RTU, 4-20 mA:
  • RS-485 with maximum cable length of 1000 m.
  • 4-20 mA with maximum cable length of 100 m.
• Power consumption <0.1 W.
• Digital input 24 V DC.
• Sensor length 500 to 1000 mm or Ø 15 to 30 mm (depending on type of use).
• Protection class IP 54.
• Weight 5 kg.
• For each humidity range H there is a specific deviation D (see table in the second picture).