Kahn Optidew Bench Top, User Manual

Page: 11 / 88

Optidew User’s Manual
2 October 2019
INTRODUCTION
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:
Single Stage
Standard Sensor
Dual Stage
Standard Sensor
Harsh
Environment
Sensor
Approximate
maximum
depression at
ambient
108°F/60°C 126°F/70°C 126°F/70°C
Maximum operating
temperature
194°F/90°C 194°F/90°C 248°F/120°C
Lowest Measurable Dewpoint
Sensor temperature
at 23°C ambient
-13°F/-25°C -40°F/-40°C -40°F/-40°C
For more detailed information on the performance of the sensor across its whole
operating temperature range, see section 4.5.
All versions are rated for use at pressure up to 362 psig (2500 kPag).