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CORRECTING FOR BAROMETRIC PRESSURE
As shown in Fig. 3, the Rugged TROLL 100 and 200 instruments
measure all pressure forces detected by their absolute pressure
sensors. These forces include barometric (also called atmospheric)
pressure and the pressure of the water above the sensor. As a
result, logged data will show the effects of changes in barometric
pressure. These effects can be removed manually (see the technical
note “Manual Barometric Correction” in the Technical Resources
section of the In-Situ website). To automatically remove barometric
pressure effects, use Win-Situ Baro Merge software to post correct
non-vented water level data.
Using Baro Merge Software
You will need:
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Win-Situ Baro Merge and Win-Situ 5 installed on a desktop/
laptop PC
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One or more Rugged TROLL logs in your Win-Situ working
directory
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A Rugged BaroTROLL log in your Win-Situ working directory
covering the time period of the Rugged TROLL log(s) to be
corrected
1. Launch Baro Merge from the desktop shortcut or the
Win-Situ 5 Tools menu.
2. In the main window, select “Use a BaroTROLL file” for the
compensation method (Fig. 4).
TIP:
Information on the other two compensation methods may be
found in Baro Merge Help (press F1 in Baro Merge).
Fig 4. Baro Merge options with BaroTROLL file method selected
3. Click
to select a Rugged BaroTROLL log file. (Baro
Merge displays these automatically by site when they are in
the proper location.)
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Click the plus sign to expand the site and display the logs.
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Check
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the Rugged BaroTROLL file you want to use, then
click OK
.
4. The main window returns to the screen with the Rugged
BaroTROLL log file displayed (Fig. 4). Click Next
to
continue.
5. Baro Merge reads and displays the values in the Rugged
BaroTROLL log. Edit the values if necessary, or click Next
to continue.
TIP:
For details on adding or editing values and time stamps in the table,
see Baro Merge Help (search for “Manual Entry”) .
6. Now choose the Rugged TROLL log file(s) you intend to
correct (shown automatically when in the proper location).
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You may check
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as many files as you like. For best results
the time stamps in the Rugged BaroTROLL log and the
Rugged TROLL log(s) should overlap. (Baro Merge will use
the first and last barometric values for Rugged TROLL data
points beyond the barometric data time stamps.)
7. Click OK
. The barometric compensation is applied.
When processing is complete, click OK again.
8. Click
to close Baro Merge.
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The compensated log files may be viewed or exported from
the Data tab in Win-Situ. The original Rugged TROLL log file
is not changed. A corrected log file with the same name and
path is created with the file extension “–BaroMerge.wsl.”
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For more information, refer to the Win-Situ Baro Merge
technical note at www.in-situ.com.
Warranty Provisions
In-Situ Inc. warrants the Rugged TROLL 100 and 200 and Rugged
BaroTROLL for one (1) year, from the factory ship date, against defects
in materials and workmanship under normal operating conditions.
Complete warranty provisions are posted on our web site (www.
in-situ.com).
How to Contact Us
Technical Support:
800 446 7488, option 3
(Toll-free 24 hours a day in the U.S. and Canada)
Mailing/Shipping Address:
In-Situ Inc.
221 East Lincoln Ave.
Fort Collins, CO 80524
U.S.A.
Phone:
970 498 1500
Fax:
970 498 1598
Internet:
www.in-situ.com
Email:
To Obtain Repair Service (U.S.A.)
If you suspect that your Rugged TROLL 100/200 or Rugged
BaroTROLL is malfunctioning and repair is re quired, you can help
assure efficient servicing by following these guidelines:
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Call or email In-Situ Technical Support ([email protected]).
Have the equipment with you when you call.
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Be prepared to describe the problem, including how the
instrument was being used and the conditions noted at the time
of the malfunction.
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If Technical Support determines that service is needed, they
will ask that you download and complete a Return Materials
Authorization form available on the In-Situ website under
Contact/Returns for Service.
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Clean the instrument and/or cable. Decontaminate thoroughly if it
has been used in a toxic or hazardous environment.
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Carefully pack the instrument and/or cable in a suitable shipping box.
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Mark the RMA number clearly on the outside of the box with a
marker or label.
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Send the package, shipping prepaid, to ATTN: RMA #XXXXX, at the
address above.
The warranty does not cover damage during transit. We recom mend
the customer insure all shipments. Warranty repairs will be shipped
back prepaid.
Outside the U.S.A.
Contact your international In-Situ distributor for repair and service
information.
