AMS Instrumentation and Calibration presents the MDM300 portable dew-point hygrometer from Michell designed for spot checks of moisture in hospital environments to ensure safety of surgical air and reduce risk of infection.
Designed to take high-speed measurements of moisture in compressed air systems for surgical instruments and breathing air in spot checks, MDM300 portable dew-point hygrometers ensure safety in hospitals.
Compressed air is used throughout hospitals for breathing air and instrument air. It is important to keep moisture levels low in compressed air systems to avoid corrosion as well as reduce the risk of bacterial growth. Bacteria can easily grow in water vapour in compressed air lines, from where they may be released into the air to either grow on surfaces or be inhaled and possibly cause infection. The warm conditions of a hospital provide suitable conditions for bacteria to thrive if not kept clean and dry.
It is therefore vital to keep the compressed air at a dew point of less than -46°C to remove the risk of bacterial growth. The MDM300 portable hygrometer ensures that the moisture level in the compressed air is at, or below, this dew-point temperature by enabling spot checks to be made at critical points in the system.
Key features and benefits of Michell MDM300 portable hygrometers:
- Capable of taking measurements on breathing air or surgical air at line pressure with a simple sampling kit – the Medical Air kit
- Allows the portable unit to connect directly to the bulkhead system with a standard 3/8” NGS probe
- No waiting time between measurements, even to very low dew points, allowing a large number of spot checks to be carried out each day
- Easy to use instrument with an intuitive interface that needs minimum training
- Gives ±1°C accuracy down to -60°C dew point for increased confidence in the safety of the compressed air
- Undergoes a 13-point calibration over 10 days before leaving the factory
- Calibration certificates traceable to the National Physical Laboratory (NPL) for the UK, or National Institute of Standards and Technology (NIST) for the USA for reassurance of accuracy
- Accredited calibrations to ISO 17025 also available