In-situ Level TROLL 400, Operator'S Manual, Page: 37 / 85

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Field Deployment
Program the Instrument
In order to set up a log or download data, you must connect the instrument to a computer running Win-Situ 5 software or to a
mobile device with the VuSitu app. See page 52.
Position the Instrument
Place the instrument at the desired depth. Position the instrument below the lowest anticipated water level, but not so low
that the pressure sensor range might be exceeded at the highest anticipated water level. Refer to the tables below to
determine usable depth.
A BaroTROLL Instrument can be deployed with a non-vented instrument to compensate
level data for changes in atmospheric pressure. Make sure the clocks on both instruments
are synchronized, and install the BaroTROLL in a location that will never be submerged in
water.
See page 41.
Range Effective Range Usable Depth
PSIA PSIA kPA Meters Feet
30 15.5 106.9 11 35
100 85.5 589.5 60 197
300 285.5 1968 200 658
500 485.5 3347 341 1120
1000 985.5 6795 693 2273
* Effective range for psia sensors is limited by an estimated 14.5 PSI
atmospheric pressure at sea level.
Non-Vented Level TROLL Instrument
Range Usable Depth
PSIG kPA Meters Feet
5 34.5 3.5 11.5
15 103.4 11 35
30 206.8 21 69
Vented Level TROLL Instrument