LumaSense Technologies INNOVA 1314i - Manual (Page 145)

Chapter 12
______________________________________________________________________
_____________________________________________________________________________
BE6030-13 1314i Photoacoustic Gas Monitor LumaSense Technologies A/S
Page 145 of 199
12.4 The Basic Calibration Set-up
The general equipment required to perform the calibration is shown
in Fig.12.5. Three different lengths of Teflon tubing are connected to
a “Y”-piece. The tube attached to point 1 is connected to the air-inlet
of the Monitor; the tube attached to point 2 is attached to a gas flow
meter or similar apparatus; and the tube attached to point 3 is at-
tached to the cylinder of gas which is to be used during calibration.
Fig.12.5 General equipment required for a calibration task
Attaching a gas flow meter serves two vital functions (see Fig.12.6):
Fig.12.6 Schematic diagram of a flow meter