A portable dewpoint hygrometer which offers quick and reliable spotcheck measurements of dewpoint and trace moisture content for industrial applications. This robust and lightweight instrument features an intuitive menu structure and advanced features which will enable the user to perform measurements in the toughest of environments, quicker and easier than ever before.
The robust housing not only contains the moisture sensor, desiccant chamber and gas sample ports but also incorporates the signal conditioning circuitry, memory management and a full colour graphics LCD. The on-board rechargeable lithium-ion battery, when fully charged, provides over 150 hours of continuous operation.
The unit operates with the following ten language options: English, German, French, Spanish,Portuguese, Russian, Italian, Chinese, Japanese and Korean. Powerful microelectronics provide automatic calibration with real time data logging graphical formats for the capture and display of up to 300,000 data points with USB and Bluetooth interfaces for PC communication and printing.
Desiccant Dry-Down Technology Keeping the sensor dry between tests ensures that the SDHmini is ready to carry out rapid spot checks. The unique design of the desiccant head achieves this by surrounding the sensor with desiccant, keeping the sensor dry.
The head is then lifted for sampling, exposing the sensor to the sample gas. Between tests, the sensor is not allowed to come into contact with ambient air. The chamber is designed so that the void space and chamber wall surfaces are purged with sample gas before exposure of the sensor, giving faster, more accurate and reliable results.
Automatic Calibration The most important and unique feature of the SHAW system is the automatic calibration facility. Each SHAW sensor is precisely manufactured to saturate with water vapour at its design maximum. Hence, when the sensor is exposed to moisture above its maximum operating range, it will rapidly come into equilibrium and cease to respond to any further increase in moisture. This forms the basis of automatic calibration (AutoCal).
The SHAW sensor can be checked by simply exposing it to any atmosphere which is wetter than the operating range of the sensor (usually room air is sufficient) by raising the desiccant chamber and performing the AutoCal feature on the instrument. The sensor is now set up with the instrument and ready for use.
AutoCal can be carried out in-situ and without the need for any special equipment or skilled personnel. The net result is reduced downtime, minimal calibration costs and immediate verification of the system.
Features:
Automatic Calibration (AutoCal)
Desiccant dry down assembly for high speed measurements
User selectable engineering units - °C, °F, ppm(v), ppm(w), g/m3, lbs/MMscf
Accuracy of ±2 °C (±3.6 °F)
Full colour graphics LCD display, with secondary display
10 language options
Various measurement ranges available from -100 °C to +20°C dewpoint
Rechargeable battery - over 150 hours of continuous operation on full charge
Advanced data logging and download to PC
USB charging/connection to PC interface
Bluetooth connection/printing
Robust and durable enclosure, designed for use in the toughest environments
Truly portable and lightweight: less than 1.75 kg (3.8 lbs)
Calibration Certificate traceable to National & International