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11
Chapter 1: Instructions for Use and Installaton
The Spirometry Source
1.2 LAYOUT OF CONTROLS, PILOT LIGHTS AND
CONNECTORS
1
2
6
7
8
9
3
4
5
1- On/off button
2- Graphic LCD display
3- Turbine transducer
4- USB connection
5- RS·232
series connection
6- Specifications plate
7- Lithium
battery (CR1632)
8- Firmware loading
switch
9- Main batteries
(2xAA 1.5V)