Vaisala HPP272, User Manual, Page: 5 / 66

List of Figures
Figure 1 HPP272 Probe Parts...........................................................................................7
Figure 2 Effect of H
2
O and H
2
O
2
on relative saturation (RS) and
relative humidity (RH).....................................................................................10
Figure 3 Operating principle of PEROXCAP measurement................................... 15
Figure 4 Example behavior of H
2
O
2
concentration, relative
saturation (RS), and relative humidity (RH) in a
vaporized H
2
O
2
bio-decontamination cycle (non-
condensing conditions)...................................................................................17
Figure 5 Example: RS behavior in different temperatures when
H
2
O
2
concentration (500 ppm) and H
2
O concentration
(8850 ppm) are constant............................................................................... 18
Figure 6 Decontaminated space with different temperatures and
RS levels (H
2
O
2
and H
2
O concentration evenly distributed)................ 19
Figure 7 Probe M12/5 Pins..............................................................................................22
Figure 8 Wiring Example for Connecting HPP272 to a PLC in
Analog Mode..................................................................................................... 23
Figure 9 Pins on the M12 male connector.................................................................. 24
Figure 10 Connecting Probe to Insight.........................................................................28
Figure 11 Attaching Probes to Indigo............................................................................ 31
Figure 12 Enabling and Accessing Indigo's Wireless Configuration
Interface..............................................................................................................32
Figure 13 Indigo Login View............................................................................................ 33
Figure 14 HPP272 Dimensions........................................................................................ 43
List of Figures
3