GEM
™
2000
GAS ANALYZER & EXTRACTION MONITOR
OPERATION
MANUAL
For Sales & Service Contact
2650 E. 40th Ave. • Denver, CO 80205
Phone 303-320-4764 • Fax 303-322-7242
1-800-833-7958
www.geotechenv.com
Страница 1: ...GEM 2000 GAS ANALYZER EXTRACTION MONITOR OPERATION MANUAL For Sales Service Contact 2650 E 40th Ave Denver CO 80205 Phone 303 320 4764 Fax 303 322 7242 1 800 833 7958 www geotechenv com...
Страница 2: ...ublisher Making copies of any part of this book for any purpose other than your own personal use is a violation of United States copyright laws LANDTEC GEM and DataField are registered with the U S Pa...
Страница 3: ...FIELD CALIBRATION 7 3 6 1 Zero Channels 8 3 6 2 Span Channels 8 3 6 3 Factory Settings 8 3 6 4 Last Field Cal 8 3 7 MODE OF OPERATION 8 4 TAKING PROBE READINGS GA MODE 9 4 1 PRELIMINARY CHECKS 9 4 2...
Страница 4: ...ion 43 7 3 2 Controlling by Wellhead Vacuum 43 7 3 3 Controlling by Gas Composition 43 7 3 4 Controlling by Flow Rate 43 7 4 WELL FIELD MONITORING 44 7 5 TYPICAL FIELD READINGS 44 7 6 ABBREVIATED FIEL...
Страница 5: ...until turning the pressure relief valve equalizes internal pressure When shipping a GEM 2000 back to CES LANDTEC for calibration or service always ship it in the original packaging to protect unit fro...
Страница 6: ...2000 Front View Back View Sample Inlet or Static Pressure Port Exhaust Port RS232 Communication Socket Charger Socket Particulate Filter Housing Impact Pressure Port Left Side View Charger Socket RS2...
Страница 7: ...e CES LANDTEC logo being displayed and the self test will commence When switching the instrument off the On Off button must be held down for approximately 15 seconds at which point a clean air purge w...
Страница 8: ...c The most likely reason for the errors is either an incorrect user calibration or sensor failure If an incorrect user calibration has caused the warning it should be correctable by way of returning t...
Страница 9: ...ing Complete indicator is flashing 2 7 Read Gas Levels Screen GA mode of operation The read gas levels screen is also considered the normal operation screen and all operations are carried out from thi...
Страница 10: ...n be performed using the relevant gas and concentration prior to sampling with a gas pod 2 9 Cold Start THIS FUNCTION SHOULD BE USED ONLY AS A LAST RESORT For Gas Calibration Error Massages confirm th...
Страница 11: ...he company logo will be displayed for a few seconds and the read gas levels screen will be displayed This will initiate a 30 second countdown to the next sample being taken unless the operator stops t...
Страница 12: ...Channels Spanning Channels should be carried out prior to use or when the ambient operating temperature changes greater than 20 degrees Selected from the Field Calibration Calibration Menu allows the...
Страница 13: ...ble shock damage Do not place the analyzer against anything hot e g gas extraction pipe car body or in an unattended car during the summer This may cause erroneous readings When moving around a site p...
Страница 14: ...as a prompt to store the reading 7 Upon storing the reading any pre programmed questions will be displayed for response This may require a numeric alphanumeric selectable comment or exclusive comment...
Страница 15: ...GEM 2000 UL certification and is therefore certified for use under the same conditions as the instrument 4 6 Cross Gas Effects 4 6 1 Methane Carbon Dioxide and Oxygen The Methane reading is filtered t...
Страница 16: ...o two years It is recommended that Gas Pods be field calibrated at regular intervals 4 7 Memory The instrument s memory is volatile It is maintained by a battery back up system which will maintain the...
Страница 17: ...car body or in an unattended car during the summer This may cause erroneous readings When moving around a site protect the instrument from strong direct sunlight heavy rain or wind chill Strong direct...
Страница 18: ...y be performed prior to connecting the sample tubes to the well head by selecting 1 MENU and highlighting ZERO TRANSDUCERS This eliminates the need to disconnect and re connect the sample tubes on the...
Страница 19: ...s are Pentium III 500 MHz microprocessor or equal 64 MB RAM 120 MB of free hard disk space CDROM drive Mouse or pointer system Standard keyboard Installed printer 6 1 Installing DataField CS Be sure y...
Страница 20: ...up screen hasn t appeared open a file browser ex right click on the Start button on your desktop and choose open and navigate to your CD ROM drive Double click on the Autorun exe 6 2 Establishing Comm...
Страница 21: ...rument Click OK and DataField CS will automatically search for the instrument This may take a few minutes When the instrument is found and the communication is established the software will display a...
Страница 22: ...Comments Site Questions Clear Memory Instrument Settings and Resource Links Clicking on any one of the buttons will take the user to that functionality of the application 6 4 Close the program Clickin...
Страница 23: ...4 Site Questions DataField CS supports a total of five site questions that are answered by the technician and saved to the ID data 5 Clear Memory Allows the deletion if selective IDs readings comments...
Страница 24: ...a comment click on the comment to highlight the comment and press the Delete key on the computer keyboard to remove the highlighted comment It is always suggested to save the comment file because of...
Страница 25: ...aded IDs in the instrument to be downloaded for modification such as increasing the pump run time or adding additional comments to a specific ID CAUTION Loading IDs from an instrument can be a dangero...
Страница 26: ...ow device used with the well Accu Flo wellhead Pitot tube or orifice plate user input may also be selected If Pitot tube or orifice plate is selected the inside pipe diameter and orifice diameter must...
Страница 27: ...en seen below If additional IDs need to be entered simply click on Add ID and enter the data as before Once all the IDs have been entered click Save File button to save the ID data to a file or Send t...
Страница 28: ...click on Load from Instrument if the IDs to be edited reside in the instrument Once the IDs have been opened the ID Editor screen will appear as shown below To select an ID for editing click on the ID...
Страница 29: ...save the edited data to disk or click on Send to Instrument to append the IDs to the IDs in the instrument Note IDs are only appended to the unit It is strongly recommended to erase clear IDs from un...
Страница 30: ...erify each deletion Clicking No will delete all the selected IDs Clicking Yes will prompt on the deletion of each ID in the selection In this case the deletion of some IDs in the selection can be canc...
Страница 31: ...re sequence an ID data set click on the ID button to open the ID editor Load the ID data set from a file or download the data set from the instrument Click on the Re sequence button to open the scree...
Страница 32: ...the new data set to a file on disk or click on Send to Instrument to upload the new data to the instrument Note It is suggested to clear ID information from the instrument prior to uploading the re s...
Страница 33: ...ge 29 6 6 6 Readings The Readings screen provides the capability to download upload view save data to a file and delete individual or multiple readings from a data set Click on the Readings button to...
Страница 34: ...ce e g hard drive CD etc Once the file has been opened or data downloaded from the instrument the readings can be either stored online only with the online version or saved to a file only with the off...
Страница 35: ...ons can be either alphanumeric numeric select comment the technician selects the comment from a list of ten answers or exclusive comments the technician may select only ONE exclusive question from a l...
Страница 36: ...nd Unit of Measurement fields appear for this type of question Answer format refers to the number of digits and decimal places required for the answer Unit of Measurement refers to inches feet yards e...
Страница 37: ...GEM 2000 and be sure it is in the read gas screen Click on Select Comments and the list of comments from the instrument will open in the window for selection Ten comments may be selected from the list...
Страница 38: ...downloaded from the instrument Ten exclusive comments may be selected however only ONE may be chosen by the operator to become an Exclusive Comment When all the desired questions have been entered cli...
Страница 39: ...nd download the current instrument settings Once the current settings have been obtained the following screen will open There are six different Menu Cards under instrument settings Each card provides...
Страница 40: ...GEM 2000 Operation Manual Page 36 instrument Turn off the alarm by clicking off the check mark next to the gas Click on Update Alarm Levels to send the new settings to the instrument...
Страница 41: ...gging screen In this screen enter the Logging ID this may be any alphanumeric combination of eight characters Enter the interval between readings in minutes and pump run time in seconds Click on Updat...
Страница 42: ...readings screen Unchecking the last feature will disable LEL display in both GA and GEM modes of operation The Low Flow Warning setting controls the point at which the pump is shut off due to low flow...
Страница 43: ...mputer time and date settings by clicking on the Click to Retrieve the Computer s Time and Date button Manual setting of the time and date may be accomplished by clicking on the Update Instrument Time...
Страница 44: ...technical support team Note EXTREME CAUTION should be taken if changing the Units of Measurement All data from the instrument should be downloaded and stored in both the GEM and the GA modes before up...
Страница 45: ...age 41 6 7 2 Resource Links Clicking on the Resource Links button on the main screen will display the Resources and Links screen By clicking on the supplied link the user is taken directly to the www...
Страница 46: ...ever be assumed and estimated using a subtraction basis as the balance gas Hence the measurement of Carbon Dioxide is an intermediary step Because Carbon Dioxide levels may fluctuate depending on the...
Страница 47: ...ygen and Nitrogen is desirable It is also necessary to check other gas parameters such as Carbon Monoxide to fully evaluate the condition of the well field Reliance on this information can lead to imp...
Страница 48: ...landfill reduced the pore space in the area no longer producing may become filled with landfill gas equilibrating moving in from an unaffected producing area This leaves the impression that more gas c...
Страница 49: ...ns of subsurface fires cracks and fissures liquid ponding condensate leachate weeping from side slopes surface emissions and hot spots and liquid surging and blockage in the gas collection system Fiel...
Страница 50: ...ess There may be obvious conditions when this is not appropriate such as when first opening up a well or when serious over pull is recognized Every effort should be made to make adjustments and operat...
Страница 51: ...and recovery equipment Avoid well over pull and maintain of a healthy anaerobic state within the landfill Optimize LFG recovery for energy recovery purposes Control nuisance landfill gas odors Prevent...
Страница 52: ...ead inset for cracks replace O ring on insert Field calibrate Oxygen channel Unit will not download readings or an error occurs while downloading Verify that the communications software is the right v...
Страница 53: ...type Rechargeable Nickel Metal Hydride battery pack containing six 4AH cells Not user replaceable Lithium Manganese battery for data retention Battery life Typical use 10 hours from fully charged con...
Страница 54: ...isplayed in Inches of Mercury 5 9 35 4 Hg Not corrected for sea level Atmospheric pressure accuracy 5 mbar approximately Case seal IP65 9 7 Optional Gas Pods Typical Accuracy Subject to User calibrati...
