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Geokon GK-405 User manual

QUICK START GUIDE |Model GK-405 Vibrating Wire Readout
FPC-2 Handheld
Field PC (NAUTIZ X8)
Remote Module
(Dock)
Single Sensor
Connector
Load Cell
Connector
Carrying Strap
Power On (Bluetooth®
Connectivity Indicator)
®
 The GEOKON
®Model GK-405 Vibrating Wire Readout and FPC-2 Handheld Field PC (NAUTIZ X8) placed in dock.
01. Switch on the Field PC by depressing the power
button (lower right).
02. If the Field PC was not in sleep mode (or
hibernating), it may take more than 60 seconds to
power-up. When the Windows®Mobile main screen
appears, the Field PC’s Programs and Settings can
be accessed by tapping (with the Field PC’s stylus)
01. Plug the flying leads into the 10-pin connector
marked “Sensor” on the side of the Remote
Module (red box). Connect the flying leads color for
color to the leads on the sensor. Or, if the sensor
has a 10-pin mating connector, connect it directly to
the 10-pin “Sensor” connector.
02. Press the “POWER ON” button on the Remote
Module. The blue light (Bluetooth wireless
Connectivity Indicator) will start blinking.
03. On the Field PC, tap the .
Launch the GK-405 application by tapping on the
“GK-405 VW Readout” icon.
04. After a few seconds, the Bluetooth wireless
Connectivity Indicator should show a steady blue
light indicating that a connection has been made
between the Field PC and the Remote Module.
05. When the “Live Reading” screen appears, set
the “Display Mode” to “ B .”
06. The screen should now be displaying the digits
reading of the vibrating wire sensor.
07. If this is an unpressurized (for piezometers) “Zero”
reading, record this in a field book. Or, if you want
to store readings electronically in the Handheld,
follow the instructions below—but after Step 20
select “Menu” then “Store Zero Reading Value.”
To store readings in the Field PC and for the display to
read in engineering units, a sensor configuration must
first be created that represents the vibrating wire sensor
to be read. This sensor configuration contains informa-
tion that can identify the piezometer (or load cell, strain
gage, etc.) as well as parameters that allow the GK-405
to produce readouts in engineering units. These parame-
ters include: gage factor, zero reading, units, etc. A new
configuration needs to be created for each sensor to be
read or to store data for. Sensor configurations are stored
in “Projects” so that sensors may be grouped by project
name, customer, or job site.
To begin the process of creating a sensor configuration,
tap the “View” menu from the “Live Readings” screen
and select “Sensor Selection Screen.” If no “Project”
exists, in the Project Explorer pane, tap and hold the
Workspace icon (looks like a folder) and from the menu
that pops up, select “Add Project.” Enter a project name
and a description (optional) then tap “Menu” and “Save
Settings.” To add a sensor configuration, tap and hold the
Project where the sensor is to be added then tap “A d d
Sensor.” Sensor configuration requires more informa-
tion than Project configuration; the steps at right further
describe the process:
Configuring the Readout for Engineering Units
Powering Up the Field PC
Reading Single Sensors
the menu at the top of the main screen. If,
during a pause in operation, the Field PC’s screen
goes dark, simply press the power button again. The
“Power” settings of the Field PC can be accessed
from the System Settings menu by tapping
then “Settings,” then the “System” tab and finally
“Power.”
01. Enter the sensor identifying name/number along
with any description.
02. Select the sensor model number, i.e., 45xx, from
the drop-down menu.
03. Tap the arrow to reach the next page.
04. Select “Linear” (If selecting “Polynomial,” see
Section 4.2 of the GK-405 User Manual for more
information regarding polynomial conversion and
entering coefficients).
05. From the “Output Calculation” dropdown menu,
select “G(R1-R0).”
06. Set the zero reading equal to the initial Regression
Zero shown on the calibration sheet. Alternatively,
when an actual zero reading has been taken, set
this parameter to the actual value.
07. Set the “Gage Factor” equal to the Gage Factor
given on the calibration sheet. The Gage Factor may
be a negative number.
08. Leave “Gage Offset” at zero.
09. Tap the arrow to reach the next page.
10. From the “Measurement” dropdown menu, select
“PRESSURE” (or whatever measurement type that
corresponds to the sensor being read).
11. From the “Input Units” dropdown menu, select
units equal to the gage factor units.
12. Select the desired output units that will show on
the display.
13. Tap the arrow to reach the next page.
14. If Temperature Correction is not desired, set the
“Sensor Correction” to “Disabled” then skip to
step 17. To temperature correct the sensor output,
set the “Sensor Correction” to “Enabled.”
15. Set the initial temperature at installation.
16. Set the Thermal Factor from the calibration sheet.
1 7. Select “Menu” and “Save Settings.”
18. Select “Applications,” then select “Live Readings.”
19. Select “With Selected Sensor” (the sensor just
created).
20. The Live Readings screen will be displayed
and the readings should now be in the selected
engineer units.
21. To store data, tap the “Store” icon on the screen.
The readings will be stored under that particular
sensor file, the one created in Steps 1-17.
Please Note:
If at any time the Bluetooth wireless connection is lost, it
can be restored by first pressing “POWER ON” (on the
Remote Module). Then tap the “Applications” menu,
tap “Remote Connect with…” and finally, tap “COM 5.”
Where multiple sensors are in use and readings are
required in engineering units, from the “Sensor
Selection Screen,” select the proper sensor configura-
tion corresponding to the sensor currently connected to
the Remote Module.
From the “Live Readings” screen, the Bluetooth wire-
less connection can be closed by tapping “Menu” then
tapping “Close GK-405.”
For further instructions on how to access the stored data
see the GK-405 User’s Manual.
Configuring the Readout for Engineering Units (Continued)
The GEOKON®logo and word mark are registered trademarks with the United States Patent and Trademark Office. GEOKON maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice.
The Bluetooth®word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by GEOKON is under license. Other trademarks and trade names are those of their respective owners.
Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
Reading load cells is very similar to reading other sensors
with the major difference being that the load cell has a
separate connector on the Remote Module labeled “Load
Cell.” Use this connector when connecting to a load cell
with the standard “Mux”cable (p/n 8032-5) or if 10-pin
Bendix connector has been factory installed on the load
cell cable end.
When reading a load cell comprised of multiple sensors,
the value for each sensor can be seen by selecting the
“Sensor Index” from the dropdown menu. The “Sensor
Index” defaults to “Avg” (average) on power-up.
When defining a Sensor Configuration for a load cell,
the Sensor Type will be “49xx” and the gage factor is
taken from the calibration report that is included with
each load cell.
Another difference when configuring a load cell versus
a piezometer is that the “Measurement” type should
be set for “LOAD” and the input units set to the units
the cell was calibrated for. Output units can be set for
whatever is desired.
Please Note: Model 3000 resistance load cells can-
not be read with the GK-405. Use the GEOKON Model
GK-502 for this type of load cell.
When done taking measurements, the unit is powered
down by first closing the GK-405 application. If in “Live
Readings” this is accomplished by tapping on “Menu”
then “Close GK-405.” If in the “Sensor Selection”
screen, tap on the “File” menu and then “Close GK-405.”
In either of the above cases, the Remote Module will
power down and the program will exit.
A quick push of the “Power” button on the FPC-2, sends
it to sleep mode where it draws very little current. This is
the recommended mode when more measurements are
to be made the same day.
A full power-down sequence is recommended at the end
of each day. This is accomplished by pressing and hold-
ing the FPC-2 “Power” button until a menu is displayed.
Select “Power Off” from this menu.
Powering Down
Reading Load Cells
©2016 GEOKON, INCORPORATED. All Rights Reserved | Doc. Rev. B.1, 06/16
GEOKON, INCORPORATED
48 Spencer Street
Lebanon, NH 03766• USA
phone: 1• 603• 448•1562
email: info@geokon.com
web: www.geokon.com
GEOKON is an
ISO 9001:2008
registered company
®

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