1735 Water Vapour Transmitter

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1735 Water Vapour Transmitter

In-situ Water Vapour Analysis in High Humidity Applications

Moisture measurement improves product quality and consistency and reduces fuel costs for drying and baking processes.

Novatech has enhanced its range of analysers by adding the 1735 Water Vapour Transmitter and the 1231HWV High Water Vapour Oxygen Probe

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The 1735 transmitter uses the measure of oxygen to calculate the level of water vapour by using the difference between the wet oxygen reading and the dry oxygen reading.

The Novatech zirconia probes incorporate the world’s most rugged zirconia sensors. Now there is a Novatech oxygen probe designed especially for baking and drying ovens.
Used with the 1735 water vapour transmitter, the 1231HWV oxygen probe is capable of reading the oxygen concentration in atmospheres with up to 99.99% water vapour and at temperatures up to 600°C (1,100°F).

The 1735 / 1231HWV water vapour analysis provides rapid payback for processes such as:

  • Drying ovens
  • Baking ovens
  • Paper drying hoods
  • Gypsum and plasterboard dryers
  • Timber drying kilns

The 1735 / 1231HWV water vapour analysis can provide accurate moisture control in atmospheres up to 600°C

Easy to operate, reliable and no regular calibration needed. Select the unit of measure to display and output from:

  • Water Vapour %
  • Dew Point
  • Mixing Ratio
  • Specific Humidity
  • Relative Humidity
  • Absolute Humidity
  • Oxygen

Fast, Accurate and Reliable

The oxygen sensor, which measures water vapour due to oxygen displacement in the oven atmosphere, provides accurate and virtually drift-free measurement for years.
Highly responsive, eg: typically 3 seconds for indirect heated applications.

Controlling humidity

The 1735 / 1231HWV can be used with controllers, including PLC’s, to provide accurate continuous control of the moisture level.

Direct Fired Processes

The 1735 / 1231HWV measures the “wet” oxygen level of the process using an in situ zirconia oxygen probe and can accept a remote signal input (4-20mA) proportional to the dry oxygen level to then calculate the percent water vapour in the process. If this signal is not available from an existing CEMS installation then the 1735 can be supplied with a reference gas sensor as a simple sampling system to determine the “dry” oxygen level in the process.

The 1231HWV oxygen probe and the 1735 transmitter is designed in Australia and manufactured in the Melbourne factory. The sensor embodies the research and development of Australia’s premier research organisation, CSIRO.

The probe can be inserted directly into the oven / dryer therefore eliminating the need for a high-maintenance sampling system.



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