Vaisala GMP231 - Manual (Page 14)

User's Guide _______________________________________________________________________
12 ___________________________________________________________________ M211501EN-C
CHAPTER 2
PRODUCT OVERVIEW
This chapter introduces the GMP231 probe and its features.
Introduction to GMP231
The Vaisala CARBOCAP® Carbon Dioxide Probe GMP231 is designed
for incubator manufacturers requiring accurate and reliable carbon
dioxide measurements and sterilization durability at high temperatures.
The GMP231 probe is based on Vaisala’s patented CARBOCAP
®
technology and a new type of infra-red light source. The probe can
remain in place during high-temperature sterilization cycles that heat the
chamber interior to 180 °C. Special design of the probe enables easy
installation through the incubator wall and ensures that the sensor optics
and electronics are separated and thermally insulated.
Sensor performance is optimized at 5 %CO
2
measurement. GMP231 also
has an internal pressure sensor, which allows compensation of the
measurement according to ambient pressure. Since dust and most
chemicals do not affect the measurement, and the effect of water vapor
can be compensated for, GMP231 is accurate and stable at CO
2
incubator
conditions.
1403-144
Figure 1 GMP231 Installed Through a Chamber Wall (Example)