Chapter 2 ___________________________________________________________ Product Overview 
 
VAISALA ________________________________________________________________________ 15 
Transmitter Parts 
 
  1310-038 
Figure 2  Transmitter Parts - Outside 
Locking screw for mounting base (M3×6). 
2
 calibration gas. 
Use a 3 mm inner diameter silicone tube and 0.4 l/min flow. 
Window for display (only in models where the display is visible) 
Locking screw for slide (M3×6). 
2
 level indicator LEDs. Enabled on models with LED option. 
Default settings:
 
-  Green LED (bottom): lit between 0 ... 800 ppm CO
2
. 
-  Yellow LED (middle): lit between 800 ... 1200 ppm CO
2
. 
-  Red LED (top): lit between 1200 ... 5000 ppm CO
2
, 
blinking at > 5000 ppm CO
2
. 
Holes for indicator LEDs (only in models with LED option).