Vaisala GMP231 - Manual (Page 15)

Chapter 2 ___________________________________________________________ Product Overview
VAISALA ________________________________________________________________________ 13
Basic Features and Options
- CO
2
measurement range 0 ... 20 %CO
2
.
- Temperature durability in standby mode up to 195 °C (383 °F). See
section Thermal Management on page 20.
- Vaisala CARBOCAP
®
CO
2
sensor with excellent long-term stability.
See sections Operating Principle of CO
2
Measurement on page 15 and
Specifications on page 85.
- Measurement compensated for effects of pressure, temperature, and
background gas. Pressure compensation based on integrated pressure
sensor. See section Environmental Compensation on page 17.
- Heating to avoid condensation on optical elements.
- Analog output: one current output channel (0 ... 20 mA or 4 ... 20 mA).
- Digital output:
- I
2
C.
- RS-485 (non-isolated) with Vaisala Industrial Protocol.