LANDTEC GEM5000 Plus Landfill Gas Analyze User Guide
- June 11, 2024
- LANDTEC
Table of Contents
LANDTEC GEM5000 Plus Landfill Gas Analyze
Product Manual:
A copy of the GEM-instrument manual can be found at http://www.landtecna.com
Troubleshooting
If you are having trouble with your instrument please refer to one of the following sections specific to your instrument:
- GEM5000 Series of Instruments
- GEM2xxx Series of Instruments (Includes GEM-2000, GEM-2000 Plus, GEM2Nav, GEM2Nav Plus)
- Problems common to both the GEM5000 and GEM2xxx series of instruments
GEM5000series troubleshooting
Symptom: LSGAM Starts but does not connect
The USB cable may not be plugged in to either the computer or to the instrument. The USB
Cable driver may not be installed.
a. Cable Verification (open device manager… Start Run DEVMGMT. MSC)
b. Expand the Ports Com & LPT section
-
Plug in or remove the USB cable from either the instrument or the computer.
You should see a port named “LANDTEC USB Serial Port (COM xx)” appear and disappear as the cable is plugged in and then removed. “xx” represents the actual COM port number assigned to your instrument. Note: Each 5000 instrument will have a different port number for a given computer. -
If the port does NOT appear then ensure the instrument is in “LEGACY” mode by pressing the
Menu Key on the instrument, then pressing device options. Within device options choose information. On the information scree press the
Left-Softkey to toggle the communications mode between ‘GA5K’ and ‘LEGACY’ until it shows ‘LEGACY’. -
If the USB Cable driver has been installed AND you do not have any data in the instrument you can attempt a “hard power off” of the instrument by pressing and holding the power key for approximately 25 seconds until the RED led illuminates above the power button. After restarting the instrument, you will be prompted to enter the date and time. The instrument will be in GA5K mode and will not communicate. It must be reset through the “device settings” menu
Device Information Screen and set to “LEGACY” mode.
c. On the instrument
-
Try switching between GM5K & Legacy mode. Then close and re-open LSGAM
Now ensure the instrument is in the main reading screen. Restart LSGAM and attempt a connection to the instrument.
As an alternative to using the USB cable, a Bluetooth connection can be made to the instrument. Please refer to the Instrument Manual for more specifics on using Bluetooth.
GEM2xxx series troubleshooting
Symptom: LSGAM Starts but does not connect
The USB Cable driver may not be installed or the cable is not connected to the instrument.
d. Cable Verification (open device manager… StartRunDEVMGMT.MSC)
e. Expand the Ports Com & LPT section
i. Plug in or remove the USB cable. You should see a USB Serial port (com x)
appear and disappear as the cable is plugged in and then removed. -
If not, Please see Step 1 above
If the USB Cable driver has been installed AND you do not have any data in the instrument you can attempt a cold start of the instrument.
Warning: A cold start of the instrument will do the following to your instrument:
- Erase ALL ID’s from the instrument
- Erase All Readings from the instrument
- Erase All comments from the instrument
- Erase All Field Calibration information from the instrument
- Reset the instrument clock to a default time
To perform the cold start of the instrument. Turn on the instrument, press and hold the number 1 screen after you see the logo appear. Wait about 1 second, release the number 1 key. The instrument will prompt you for a passcode. Enter in 12345 followed by the enter key. Once complete, you will have an option 1 for Cold Start. Press 1 and then enter to confirm the cold start of the instrument.
Now ensure the instrument is in the main reading screen. Restart LSGAM and attempt a connection to the instrument.
Problems common to both the GEM5000 and GEM2xxx series of instruments
Symptom: LSGAM does not retain saved information.
If you create or edit an ID, project, route, or comment and save the project,
LSGAM will indicate that the information is saved. You then close LSGAM and
open LSGAM and discover that the newly created information or edit does not
show or shows the old information prior to being edited.
This behavior is caused due to security settings on the data files used by LSGAM. Network administrators, Local administrators, and the original person who installed LSGAM will not encounter this behavior but other users of the computer will encounter the behavior because they only have “read” and “execute” permission rather than “change” permission to the folders holding the data.
Solution: Login to the computer as a user with Administrative Permissions.
Reset permissions on the
LSGAM data folders to allow all users of the computer the ability to have
“full control” permission on the directory containing LSGAM data.
For Windows XP, the data is stored in the directory c:\documents and settings\all users\application data\LANDTEC
For Windows 7 & 8 the data is stored in the directory c:\programdata\LANDTEC
This example shows the changes for Windows 7 & 8 & 10.
Windows Key ( ) + R will open the RUN box. Type in the appropriate location depending upon your operating system into the Open line and click OK.
Click OK. The explorer window should open and show you the LANDTEC folder.
Right click on the LANDTEC folder and choose Properties. On the Properties
window, select the Security tab and then highlight Users. Now look to see if
the Users have a check mark beneath the Allow column for the permissions of
“Full control” or “Modify”. If there is NO check mark for Allow click the Edit
button.
Then click the Apply followed by the OK button. The LANDTEC Properties window
will then refresh showing dark check marks for “Full Control”, “Modify”, and
“Write” permissions. Click OK to complete resetting the permissions.
Restart LSGAM and test that changes are now being saved.
Symptom: LSGAM is connects to instrumentin the office but not in the
field.
The serial communications driver used by Java is probably missing from the
Java installation. This often occurs if installing Java directly from the java
website. A copy of the driver is automatically used from
LANDTEC’s website when you are connected to the internet so the problem is
masked when an internet connection is present. Refer to step 2b above for
obtaining the driver and copying it to your computer.
Symptom: LSGAM Starts but an unknown error has occurred.
Most likely the temporary internet files which Java uses for the program are
corrupted on your computer. Clear the files using the steps below and then use
the link from Step 3 above.
Clear Java cache by going to control panel Java General (tab) Temporary
Internet files
Note: from control panel you may need to switch your view to “Detail
View” or “Small Icons” view to see the actual icon for Java.
Click on settings button
Click on Delete Files Button
Click OK
Click OK again
Click OK again to close the Java windows. Now return to step 3 above.
Symptom: Java update gives Unable to Launch Application.
http://www.landtecna.com/lsgam/lsgam60.jnlp
Click details
This is because Java security principals beginning with Version 7 Update 51
require permissions to be
different.
A work around to this is as follows:
Open control panel
Open Java
Click on the security Tab
Click on the Edit Site List
Click on the ADD button
Under location, type in
http://www.landtecna.com
Click on the Add button
Click on Continue
The list of locations will reappear
Click OK. You’ll be returned to the Java Control Panel Security Tab.
Verify that you see http://www.landtecna.com in the Exception Site List. If
you do click OK Relaunch LSGAM by going to
http://www.landtecna.com/lsgam/lsgam60.jnlp
the application should start
without throwing an exception as it previously did
