Olythe SAS
240 rue Louis de Broglie,
13100 Aix-en-Provence, FRANCE
+33 (0)4 42 52 62 39
contact@olythe.com
240 rue Louis de Broglie,
13100 Aix-en-Provence, FRANCE
+33 (0)4 42 52 62 39
contact@olythe.com
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©2013-2023 Olythe SAS
Technical specifications
Acetone detection
| Units of measurement | ppm |
| Measurement range | From 0 to 100 ppm |
| Measurement accuracy (max error) Conditions: |
± 5 ppm |
| Sampling period | 125 ms |
| Response time | 1s (τ=63%), at a flow rate of 1L/min |
Sampling characteristics
| Air inlet | Minimal relative pressure at measuring cell inlet port: 0.3 millibars Maximal relative pressure at measuring cell inlet port: 10 millibars |
| Flow rate range | From 0,1 to 1,5 L/min |
| Humidity | < 100% relative humidity (RH), not condensing |
Environnemental conditions
| Operating conditions | From 0°C to 50°C |
| Storage | From -10°C to 70°C |
| Typical starting time at 23°C |
5 minutes (30 minutes at full spec) |
Electrical characteristics
| Supply voltage | 3,7 VDC min – 5,5 VDC max |
| Input current | 1,5 A max |
| Communication interface | RS232 protocol x3 Pico-SPOX MOLEX connector (2, 3 and 5 contacts) |
Package information
| Dimensions | 125 x 30 x 22 mm |
| Weight | 1,5 A max |
| Fixing parts2 | 2 tapped holes for M3 fixing |
Sensor architecture
Mechanical drawings
Applications
Acetone in breath monitoring
Along with acetylacetic acid and beta-hydroxybutyric acid, acetone is one of the ketone bodies found in the blood and urine. We all produce a small amount of ketone, which is then eliminated through the respiratory tract and urine. Due to its high vapour pressure, acetone crosses the membrane barrier and enters the pulmonary alveoli and airways. It is therfore found in breath. Several conditions can cause high acetone levels. For example, when the body is in a state of ketosis due to glucose deprivation, or in the case of diabetic ketoacidosis due to insulin deficiency. Monitoring the concentration of acetone in exhaled air can therefore be a major help in the diagnosis or monitoring of certain diseases or metabolic disorders.