Optidew Sensor - Michell Instruments Optidew User Manual

Optidew User's Manual

1.2. Optidew Sensor

The new Optidew sensor is available with either a single or dual stage thermoelectric cooler and
with a choice of sensor head materials making it suitable for use in air/inert gases or in corrosive
environments. The following tables show the capabilities of each sensor type:
Approximate
maximum depression
at ambient
Maximum operating
temperature
Maximum
Recommended
Sensor Temperature
for FAST
Sensor temperature
at 23°C ambient
For more detailed information on the performance of the sensor across its whole operating
temperature range, see below. All versions are rated for use at pressure up to 2500 kPag (362
psig).
2
Single Stage
Dual Stage Sensor
Sensor
60 °C
90 °C
21 °C
Lowest Measurable Dew Point
-25 °C
Harsh Environment
70 °C
90 °C
30 °C
-40 °C
97551 Issue 4.1, October 2019
Sensor
70 °C
120 °C
30 °C
-40 °C