Thermo Fisher Scientific CyberScan PD 300 - Manual (Page 72)

Instruction Manual PD 300
15 ADDENDUM 2: PRESSURE VS ALTITUDE TABLE
Barometric pressure affects DO readings, therefore this meter lets you enter the correct
barometric pressure at your altitude. If you do not have equipment that lets you measure the
exact barometric pressure at your altitude, you can estimate it using the chart below.
If you change the barometric pressure setting from its factory setting (760 mm Hg), the %
saturation calibration value in air will automatically adjust to a value other than 100% (see
“corrected % saturation value” column below). The adjusted value is correct for the new
barometric pressure setting.
See page 37 for information on how to adjust the barometric pressure.
Pressure vs Altitude
ALTITUDE
feet meters
PRESSURE (mm
HG)
CORRECTED %
SATURATION
VALUE
0 (sea level) 0 (sea level) 760 100
500 152.4 746 98.1
1000 304.8 732 96.3
1500 457.2 720 94.7
2000 609.6 707 93.0
2500 762.0 694 91.3
3000 914.4 681 89.6
3500 1066.8 668 87.8
4000 1219.2 656 86.2
4500 1371.6 644 84.6
5000 1524.0 632 83.0
5500 1676.4 621 81.6
6000 1828.8 609 80.0
(1 feet ~ 0.3048 meters)
67