In-Situ Win-Situ 4 / Pocket-Situ 4 Operators Manual - Manual (Page 32)

32 WIN-SITU 4.0 USER’S GUIDE
0031510 rev. 003 11/04
5 PRESSURE SETUP
In-Situ’s MiniTROLL measures two parameters: pressure (water level) and
temperature. The Multi-Parameter TROLL 9000, when equipped with an
optional pressure sensor, also measures pressure. Options in the
Parameter Wizard let you tell the software exactly how you want to display
pressure measurements—as raw pressure head above the sensor, as
depth, or as water level with a reference.
ZEROING A GAUGED PRESSURE SENSOR
The following procedure may be used, with caution, to “zero” the offset of
a gauged pressure sensor to correct for electronic drift. The drifted offset
is visible when the sensor is in air and reading other than zero.
It is recommended you do not zero the offset if it is outside the specified
accuracy of your pressure sensor. For additional information on pressure
sensor accuracy, electronic drift, and factory recalibration, refer to the
miniTROLL Operator’s Manual and/or the Multi-Parameter TROLL 9000
Operator’s Manual.