In-Situ TROLL 9500 Operators Manual - Manual (Page 64)

57 TROLL 9500 Operator’s Manual 0095110 rev. 007 01/09
Elevation Pressure
ft m in. Hg mm Hg PSI Bars
-1,000 -304.8 31.02 787.9 15.25 1.051
- 500 -152.4 30.47 773.8 14.94 1.030
0 0 29.92 760.0 14.70 1.013
500 152.4 29.38 746.4 14.43 0.995
1,000 304.8 28.86 732.9 14.18 0.977
1,500 457.2 28.33 719.7 13.90 0.958
2,000 609.6 27.82 706.6 13.67 0.942
2,500 762 27.31 693.8 13.41 0.924
3,000
914.4 26.81 681.1 13.19 0.909
3,500 1066.8 26.32 668.6 12.92 0.891
4,000 1219.2 25.84 656.3 12.70 0.875
4,500 1371.6 25.36 644.2 12.45 0.858
5,000 1524 24.89 632.3 12.23 0.843
5,500
1676.4 24.43 620.6 12.00 0.827
6,000 1828.9 23.98 609.0 11.77 0.811
6,500 1981.2 23.53 597.6 11.56 0.796
7,000 2133.6 23.09 586.4 11.34 0.781
7,500 2286 22.65 575.3 11.12 0.766
8,000 2438 22.22 564.4 10.90 0.751
8,500
2590.8 21.80 553.7 10.70 0.737
9,000 2743.2 21.38 543.2 10.50 0.723
9,500 2895.6 20.98 532.8 10.30 0.710
10,000 3048 20.58 522.6 10.10 0.696
10,500 3200.4 20.18 512.5 9.91 0.692
11,000 3352.8 19.79 502.6 9.73 0.670
11,500 3505.2 19.40 492.8 9.53 0.657
12,000 3657.6 19.03 483.3 9.35 0.644
12,500 3810 18.65 473.8 9.15 0.631
13,000 3962.4 18.29 464.5 8.97 0.618
13,500 4114.8 17.93 455.4 8.81 0.607
14,000 4267.2 17.57 446.4 8.63 0.595
14,500 4419.6 17.22 437.5 8.46 0.583
15,000 4572 16.88 428.8 8.28 0.571
15,500 4724.4 16.54 420.2 8.13 0.560
16,000 4876.8 16.21 411.8 7.96 0.549
16,500 5029.2 15.89 403.5 7.81 0.538
PRESSURE VS. ELEVATION
(based on U.S. Standard Atmosphere)
3. Do one of the following:
s
vented cable, select “Use vented cable.” Go to step 5.
s
surements using non-vented cable, select “Use non-vented
cable or backshell.” Continue to step 4.
s
ments on non-vented cable, select “Use non-vented cable
or backshell” and also check the last box so a reading can be
taken from the barometric pressure sensor while it is available.
4. Supply a barometric pressure value for the software to use in the
absence of vented cable. Choose one of these options:
s
units by clicking the arrow on the list box). This value will be
used each time barometric pressure is required elsewhere in the
software—for example, when calibrating dissolved oxygen.
s
pressure based on the values in the table on this page. Please
note that this fixed value will not be recalculated if the elevation
changes.
5. Click OK to store this information.
SECTION 9: MONITORING BAROMETRIC PRESSURE
bars 29.530 = inches of mercury
psi 2.036 = inches of mercury
atmosphere 101325 = Pascals
psi 6.894757 10
3 = Pascals
bars 14.50337 = psi
Conversions
3
5
4