Envision™ Landfill Gas Analyzer 865 West Liberty, Suite 220, Medina, Ohio 06/19/2014
Page |2 1 INTRODUCTION ..................................................................................................................................................................... 4 2 THE ENVISION® SYSTEM ........................................................................................................................................................ 4 3 SAFETY ................................................................................................................................
Page |3 6.13 7 THE ENVISION® GAS ANALYZER CONFIGURATION EDITOR SOFTWARE (GAC).................................................................... 112 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 8 EXITING THE GAS ANALYZER SOFTWARE..................................................................................................................................... 111 LOADING THE APPLICATION..............................................................................................................
Page |4 1 Introduction Elkins Earthworks® would like to welcome you to the Envision® gas analyzer system. The Envision® gas analyzer, designed by Elkins Earthworks® is manufactured here in the United States. The equipment was designed for the field technician as well as project managers. The Envision® gas analyzer is a two part system, the sensor unit (the Envision®) and the handheld PC (the Trimble®).
Page |5 The Envision® (Gas Analyzer Unit) The Envision® gas analyzer houses the gas and pressure sensors. The gas analyzer utilizes infrared sensors to measure CH4 and CO2. The Envision® uses an electrochemical cell to measure O2 concentration and an accurate thermistor temperature probe to measure wellhead gas temperatures. Data generated by the Envision® gas analyzer is relayed to the Trimble® via Bluetooth or serial cable several times per second.
Page |6 Sample Ports The Envision® gas analyzer has four (4) ports located on the front of the unit. From the right to the left: Calibrate/Static/Sample port – This port is used to calibrate the unit with calibration gas, to measure static wellhead pressure, and to sample for gas quality. Impact Port – This port is used to generate a differential pressure for calculating flow. Do not connect pressurized calibration gasses to this port.
Page |7 and safety protocols as appropriate must be used when using the instrument. All vents on the meter are designed to exhaust to the atmosphere. Since landfill gas contains methane, no smoking is permitted while using the instrument. Calibration gases must be handled with utmost care and with adequate ventilation.
Page |8 5 Trimble® Handheld Computer Preparation The Trimble handheld computer is the prime driver for the Envision® gas analyzer. The Trimble handheld computer, provided with the Envision® gas analyzer package, has already been prepared for field use. A screen protector has already been applied to your Trimble unit. An extra screen protector has been included in the packaging. The operational software for the Envision® Gas Analyzer has been installed at the factory.
Page |9 Parameter Battery Power External Power Backlight* Never turns off Never turns off Backlight Brightness 100% 100% Keypad on Time 1 minute 1 minute Keypad Brightness 100% 100% Hibernation** Never Never * If the user changes the backlight setting the Envision® will lose Bluetooth connection when the unit enters and recovers from the backlight being powered on and off. The unit will regain Bluetooth connection almost instantly.
P a g e | 10 Changing Backlight Settings If the user would like to change these settings then follow the steps below: 1) Turn on the Trimble handheld computer by pressing the green power button on the handheld computer keypad.
P a g e | 11 3) Tap “Settings” 4) Next tap “System”
P a g e | 12 5) Next tap “Backlight” 6) On the “Battery Power” and “External Power” screens, uncheck the “Turn off backlight if device is not used for” box.
P a g e | 13 7) Tap on the Brightness tab at the bottom of the screen. 8) Increase the brightness to 100% 9) At the bottom of the “Brightness” screen select “Power” in the adjust power setting to conserve power.
P a g e | 14 10) Select the “Advanced” tab then uncheck the box “Turn off device if not used for”. This will keep the unit from going into hibernation. If the Trimble handheld computer goes into hibernation it will lose connection with the Envision® gas analyzer. 11) Exit by tapping the “OK” button twice. 5.4 Enable Bluetooth® The primary way to connect with the Envision® gas analyzer is via Bluetooth® connection. The unit ships from the factory with the Bluetooth enabled.
P a g e | 15 Next, on the Wireless Manager Screen tap the Bluetooth button and the Bluetooth will activate.
P a g e | 16 5.5 Enable GPS The Envision® gas analyzer system software is designed to utilize GPS to locate monitoring points. Units that are purchased with the GPS option require no setup to enable the GPS feature. The software developed for the Envision® gas analyzer automatically turns the GPS on and off when needed. Do not change any of the GPS settings in the Trimble handheld computer. The Trimble handheld computer has been shipped with default settings.
P a g e | 17 3) Verify GPS program port is set to COM 3 4) GPS Hardware Port is set to COM2 and BAUD rate 9600
P a g e | 18 5) Verify that this box is checked too.
P a g e | 19 6 Envision® Gas Analyzer Application The” Elkins Gas Analyzer” program is the software developed to run the Envision® gas analyzer. To activate the Gas Analyzer program follow the steps below: 1) Click Start in the upper left hand corner of the screen and tap the “Elkins Gas Analyzer” button in the drop down menu.
P a g e | 20 6.1 Software Screen Properties The detail below illustrates the main features common to each screen of the Elkins Gas Analyzer Program. 6.2 “Login Screen” - Logging to the Elkins Gas Analyzer Software Once the Elkins Gas Analyzer program is started from the “Start Menu” the “Login Menu” will appear. This screen is intended to allow the user to login to the Elkins Gas Analyzer program.
P a g e | 21 1) Select the Desired ID set and the name of the Technician who will be using the Envision® gas analyzer from the drop down menu located at the center of the “Login Menu” screen. ID sets may be added to this drop down menu by utilizing the “Elkins Earthworks® Configuration Editor” software that may be installed on your personal computer.
P a g e | 22 2) Verify that the date and time is correct as displayed on the login screen 3) If date and/or time is incorrect then tap the “Set Time/Date” button 4) The “Set Time/Date” screen will appear and you may then adjust to the correct date and/or time
P a g e | 23 5) Tap the “Set” button when the date and time have been corrected. This will return the user to the Login Screen. 6) If the user name and time are now correct then tap the “Login” button at the bottom of the screen 6.3 Connecting to and Disconnecting from the Envision® Gas Analyzer 6.3.1 Connecting to the Envision® Gas Analyzer The user can connect to the Envision® gas analyzer in one of two ways, by Bluetooth or serial connection. 6.3.
P a g e | 24 2) Turn on the Envision® gas analyzer by pressing the power button on the front of the Envision® gas analyzer 3) The Envision® gas analyzer will maintain a solid green light next to the power button 4) Next press the Bluetooth® button on the face of the Envision® gas analyzer. The blue light on the Envision® gas analyzer will blink now that it is discoverable and can allow the Trimble handheld computer to find it.
P a g e | 25 6) The Trimble handheld computer screen will display “Searching…” above the “Meters” box and will change to “Select Meter to connect” once the Envision® gas analyzer is discovered. 7) The Envision® gas analyzer should be displayed in the box titled “Meters”.
P a g e | 26
P a g e | 27 8) Select the desired analyzer by tapping the Envision® Meter ID and then tapping “Connect” 9) Once the connection is made the words “Connected to ….” will be displayed in green above the “Meters” screen. The blinking blue light on the Envision® gas analyzer will stop blinking and will now show solid blue. The connection symbol in the yellow header box on the Trimble handheld computer screen will now be multicolored indicating a connection with the Envision® gas analyzer.
P a g e | 28 10) Once connected, tap the “Main Menu” button on the lower right hand corner of the screen. 6.3.3 Serial Connection (if desired) If the user has problems with the Bluetooth link or desires to make a direct wired connection to the Envision® gas analyzer, the user may use a standard RS232 Serial cable connection. This connection requires the RS232 boot on the bottom of the Trimble handheld computer.
P a g e | 29 6.3.
P a g e | 30 2) Tap the “Disconnect” button 6.4 Main Menu The “Main Menu” is the user’s access point for all of the features included in the Elkins Gas Analyzer software. On this screen the user may select any one of the functions indicated on the buttons or the user may return to the “Select Meter” screen by tapping the “Select Meter” button in the lower left corner of the touch screen. The following sections will walk the user through each of the functions indicated on the “Main Menu” screen. 6.
P a g e | 31 Each gas sensor should be calibrated with a zero gas and then a span gas. The order in which the gas sensors are calibrated is not important but the zero point of each gas must be calibrated before the span of that gas can be calibrated. It is also recommended that when one gas sensor is calibrated that all sensors should be calibrated for zero and span.
P a g e | 32 6.5.1 Zero Gas Calibration Before a span gas can be calibrated the zero gas calibration must be performed. 1) Tap the “Zero” button of the gas that is to be calibrated.
P a g e | 33 2) The user now has the ability to scan the barcode on the calibration cylinder. Tap the “Scan Barcode” button and aim the scanner laser at the barcode on the calibration gas cylinder being utilized. The barcode number will automatically populate the “Calibration Gas Cylinder #” text box. The user can manually type in the bottle lot# using the numeric keypad on the Trimble or the user may proceed without entering a cylinder number. This data will be recorded in the calibration .
P a g e | 34 4) Tap the “Start Calibration” button. This action will turn on the sample pump and will change the Trimble handheld computer display.
P a g e | 35 5) For the first 20 seconds the “Calibration Status” will display “Initializing Gas Sensor”. The “Calibrate” and “Restore Factory Calibration” buttons will stay inactive during the sensor warm-up phase. If your meter has received a firmware update as of 9/1/2013 the sensors will always stay on, no longer requiring the 20 second initialization. However, the O2 sensor does not require a warm-up time and therefore never needs to go through the Initializing gas sensor countdown.
P a g e | 36 6) The “Calibration Value” located in the middle of the touch screen should be 0.00%.
P a g e | 37 7) Once the sensors are initiated and warmed up the “Current Value” will fluctuate. When the “Current Value” is less than 1% the Calibration status will display “Ready to Calibrate”. “Ready to Calibrate” does not mean that the sensor has stabilized but that the unit is within the 1% tolerance allowed when zeroing. Tap the “Calibrate” button once the current value has stabilized. a.
P a g e | 38 b. If the “Current Value” is greater than 1% then the Trimble handheld computer will display the following message “Verify calibration gas value and/or restore factory calibration”. The user may restore the factory calibration by taping the “Restore Factory Calibration” button on the “Calibration … Zero” screen. The user should then try to recalibrate. If the unit will not calibrate then the user should contact technical support at Elkins Earthworks® at 330-725-7766.
P a g e | 39 8) The pump will continue to run and the sensors will continue to monitor until the user returns to the “Calibration” menu by taping the “Calibration” button in the lower right hand corner of the touch screen.
P a g e | 40 9) Now that the Trimble handheld computer has returned to the “Calibration Menu” the user will notice that the parameter that has been calibrated is now highlighted in green. 10) The user may now select the next gas to calibrate.
P a g e | 41 6.5.2 Span Gas Calibration Once the Zero point has been calibrated for the desired gas, a calibration can then be performed on the span gas. 1) On the “Calibration Menu” tap the “Span” button of the gas that is to be calibrated. This will take the user to the “Calibration … Span” screen 2) On this screen there are two preset calibration gas values and one text box that the user can type in a user defined calibration gas value using the touch screen keyboard or numeric keypad.
P a g e | 42 3) If the user types in a span gas value, he must first type in the desired gas quality then tap the “User Defined” button. Once the user taps “User Defined” or either one of the two predetermined gas qualities, the screen will then change to the “Calibration … Span” screen. 4) The user now has the ability to scan the barcode on the calibration cylinder. Tap the “Scan Barcode” button and aim the scanner laser at the barcode on the calibration gas cylinder being utilized.
P a g e | 43 6) Tap the “Start Calibration” button. This action will turn on the sample pump and will change the display. 7) For the first 20 seconds the “Calibration Status” will display “Initializing Gas Sensor” and will count down 20 seconds. The “Calibrate” and “Restore Factory Calibration” buttons will stay inactive during the sensor warm-up phase. When calibrating the O2 the user will not need to go through the Initializing Gas Sensor countdown.
P a g e | 44 8) The “Calibration Value” located in the middle of the touch screen should be the same as the gas quality that is being used for calibration and will not fluctuate. 9) Once the sensors are initiated and warmed up the “Current Value” will fluctuate. When the “Current Value” is between 0% and 20% (relative) of the calibration gas value the Calibration status will display “Ready to Calibrate”. Tap the “Calibrate” button once the current value has stabilized. a.
P a g e | 45 b. If the “Current Value” is greater than 20% (relative) of the calibration gas value, then the Trimble handheld computer will display the following message “Verify calibration gas value and/or restore factory calibration”. The user may restore the factory calibration by taping the “Restore Factory Calibration” button on the “Calibration … Span” screen. The user should then try to recalibrate. c.
P a g e | 46 10) Now that the Trimble handheld computer has returned to the “Calibration Menu” the user will notice that the parameter that has been calibrated is now highlighted in green. 11) The user may now select the next gas to calibrate 6.5.3 Pressure Sensor Calibration The Envision® gas analyzer has 5 internal pressure sensors. These sensors should be field calibrated at the beginning and periodically during the monitoring event.
P a g e | 47 2) On the “Pressure Calibration” screen allow the pressures in the 5 pressure blocks to stabilize. 3) Ensure that the sample fittings are disconnected from the wellhead and shielded from wind 4) Tap the “Zero Transducers” button on the lower center part of the touch screen.
P a g e | 48 5) The values in the green pressure boxes should now read 0.00” H2O. Due to the high sensitivity of the sensors the values may still fluctuate but they should be close to the target value.
P a g e | 49 6) The user may also enter the current Barometric pressure by tapping the up and down arrows next to the Barometric Pressure. This will be used in the flow calculations generated by the unit. 7) The user may also restore the factory calibration by tapping the “Restore Factory Calibration” button.
P a g e | 50 8) Tap the “Calibration” button on the lower right of the screen to return to the main “Calibration” screen. The pressure sensor calibration menu is also accessible from the pressure measurement screen in the analyze portion of the software. On the read “Pressures” screen tap the “Calibrate Sensors” button. This action will take you to the pressure sensor calibration screen that was just described in the previous section.
P a g e | 51 Follow the same pressure calibration procedure as detailed in the previous section then tap the Analyze button in the lower right corner of the screen. Warning: Never apply vacuums greater than -200”H20 or pressure greater than +200”H2O to any of the pressure sensors during calibration or measurement activities. These extreme pressures can damage the pressure sensors within the Envision® gas analyzer.
P a g e | 52 6.5.4 Storing a Calibration File Once all of the calibration gases have been calibrated the user can select the option to “Store Calibration File”. This feature will generate a .csv file with all of the calibration information generated during the calibration activity. If the user has failed to calibrate all of the parameters a warning screen will appear and will indicate “Not all calibrated”.
P a g e | 53 File” button again the unit will store a “Calibration File” but will place NA in the fields that were not calibrated. Elkins Earthworks® recommends that each parameter be calibrated at least once during each monitoring event. Once the “Store Calibration File” button is selected the Trimble handheld computer will store the calibration file in the Trimble handheld computer in File Explorer: my documents/Elkins Earthworks/calibration.
P a g e | 54 6.6 Analyze The Analyze feature of the Envision® software allows the user to measure and record gas qualities, associated pressures and comments for selected monitoring points. To enter the “Analyze” portion of the software go to the main menu and tap the “Analyze” button. The Trimble handheld computer will automatically progress to the “Select ID” screen. 6.6.
P a g e | 55 6.6.1.1 Manually Select ID On the “Select ID” screen you may manually select the monitoring point by following the instructions below: 1) Use the scroll text boxes labeled “Site” and “ID” to locate the monitoring point that is to be monitored.
P a g e | 56 2) If the “Site” or “ID” is not stored in the ID list, the user can manually create a Site and/or ID within the “Well ID Maintenance” feature accessible via the “Well ID Maintenance” button at the bottom of the “Select ID” screen. Instructions on how to Use the “Well ID Maintenance” function can be found in 6.10.1 “Well ID Maintenance”.
P a g e | 57 3) Once the correct ID is selected the user should tap the “Purge” button. The sample pump will turn on and the button will turn green. The timer will count down 90 seconds or until the O2 percent in the meter is at least 18% then the pump will turn off. The purge cycle may end if either the Envision® meter detects that the sample train is clear of methane or the user taps the “Purge” button again.
P a g e | 58 4) Once the purge is complete keep your sample trains disconnected and shielded from the wind then tap the “Zero Pressures” button. The user can also decide to skip the “Zero Pressures” feature and tap the “Analyze” button on the bottom right corner of the screen. 5) Once the pressures have been calibrated tap the “Analyze” button in the lower right corner of the “Pressure Calibration” screen.
P a g e | 59 6.6.1.2 GPS Selection of ID If the user desires to locate the monitoring point via GPS then follow the instructions detailed below: 1) Stand at the location to be monitored – The first connection may take several 4 minutes for the GPS to lock after the Nomad is first turned on. Each location after this should be instantaneous. 2) Tap the GPS button on the Trimble handheld computer’s touch screen.
P a g e | 60 3) On the “Select ID” screen tap the “Barcode” button on the Trimble handheld computer touch screen and aim the laser scanner at the barcode 4) A status message will be displayed above the “Site” that will indicate “Scanning Barcode”
P a g e | 61 5) Once the barcode has been verified the status will change to “Site/ID selected by Barcode” 6) The Trimble handheld computer will automatically populate the “Site” and “ID” text box with the correct monitoring point. 7) If the barcode does not find a monitoring point then the status will change to “Failed to find Barcode/GPS match”. If the ID is known, the user can manually select the Site and ID then tap the “Well ID Maintenance” button to mark the barcode for that location.
P a g e | 62 6.6.2.1 Analyze Screen buttons 6.6.2.1.1 Pump This button activates the sample pump located within the Envision® gas analyzer. The button is red when the pump is off and green when activated. The default on time for the pump is 600 seconds. To activate the pump tap the “Pump” button once. The sensor will then go through a 20 second warm-up before actual gas values will appear. The pump may be turned off by tapping the “Pump” button again.
P a g e | 63 6.6.2.1.2 Read Pressures The Envision® unit measures Available, Applied, and Differential pressures. In order to view and record these pressures the user must go to the “Read Pressures” screen.
P a g e | 64 This button takes the Trimble handheld computer to the “Pressures” screen.
P a g e | 65 6.6.2.1.3 Previous Data If the user desires to view data previously recorded on the Trimble handheld computer then the Previous Data button should be tapped.
P a g e | 66 This button will take the Trimble handheld computer to the “View History” screen. The “View History” screen will display any historical well data for the selected ID located in the site’s current month output file located on the Trimble handheld computer. To return to the “Analyze” screen tap the Analyze button in the bottom left hand corner of the screen.
P a g e | 67 6.6.2.1.4 Browse File The “Browse File” button will take the Trimble handheld computer to the File Explorer. This will allow you to search for previously stored .csv (comma separated variable) files for viewing. Applications are available for the Trimble handheld computer that will allow the user to view .csv files. To return to the “Analyze” screen tap the X in the upper right hand corner of the screen.
P a g e | 68 6.6.2.1.5 Lock Readings The “Lock Readings” button is designed to lock the gas values and to turn off the pump. This feature locks the readings so if you decide to come back to this screen your readings will not change. This feature does not actually “Store” the gas qualities into the .csv file. After the “Lock readings” button is tapped the button will change to “readings saved”. The values are now locked. The values can be unlocked by tapping the pump button.
P a g e | 69 6.6.2.1.6 Next ID This button will allow you to select another ID without having to proceed through the entire sample procedure. However this will not store any of the data that you have gathered for the current ID. 6.6.2.1.7 Main Menu This button will exit the user from “Analyze” and take the user back to the “Main Menu”. However this will not store any of the data that you have gathered for the current ID.
P a g e | 70 6.6.2.2 Gas Quality and Gas Quality Ratios The Envision® gas analyzer measures concentrations of three gases: CH4, CO2 and O2. The balance gas is calculated by subtracting the total of these three gas qualities from 100%. 6.6.2.2.1 Gas Qualities CH4 - Methane CH4 is measured via an internal Infrared sensor. The measurement range of the sensor is 0-100% CH4. CH4 – LEL (lower Explosive Limit) By tapping the CH4 box the Trimble handheld computer will display the CH4 LEL%.
P a g e | 71 6.6.2.2.2 Gas Ratios Balance/ O2 Results near “4” indicate a direct air leak into the sample train, sample fitting or wellhead. User should be familiar with interpreting the range of ratios for Balance/ O2. Information is available within the SWANA Landfill Gas O&M Manual available at www.swana.org. CH4/ CO2 Ratio lower than 1.1 may indicate potential for stressed conditions on a landfill gas well.
P a g e | 72 6.6.2.3 Color Definitions The Elkins Gas Analyzer software has been programmed to help the user make tuning decisions by using acceptable ranges which have been set up using the Configuration Editor software. When the gas sensor is in the acceptable range the gas quality text box will turn from red to green. The color key can be displayed by touching the gas quality text box. Tap “OK” to close the color key.
P a g e | 73 The software is also programmed to detect when the gas sensors have stabilized. When the gas sensor has stabilized the gas quality text box will turn from clear to green. The color key can be displayed by touching the sensor title. Tap “OK” to close the color key. The user may progress to the next screen by pressing the “Read Pressures” button. The user may also elect to go back to the main menu by tapping the “Main Menu” button. 6.
P a g e | 74 Differential -5 to +5 -30 to +30 When initially entering the “Pressures” screen from the “Analyze” screen the user will notice that the Initial pressures are visible. When the pressure sensors are in the acceptable programmed range, as programmed by the user in the Configuration Editor, the pressure text box will turn from red to green. The color key can be displayed by touching the gas quality text box. Tap “OK” to close the color key.
P a g e | 75 When the user is satisfied with the Initial pressures they may tap the Lock Initial button to lock in the initial pressures. Once the lock initial pressure button is tapped the “Adjusted” pressures will appear and will start fluctuating.
P a g e | 76 Once the user makes an adjustment and the sensors have stabilized the user can tap the “Lock Adjusted” button. The button will then change to “Unlock Adjusted”. If the “Unlock Adjusted” button is pushed it will unlock the adjusted values allowing them to fluctuate. The user may now lock the value again. Failure to lock the values will result in the adjusted values not being stored in the output file. The user may also access the pressure sensor calibrate screen from this screen.
P a g e | 77 If the user has defined this monitoring point as “User Defined” then the user may type in a flow device for both the Initial and Adjusted flows. Use the “Comments” button to progress to the next screen or tap the “Analyze” button to go back to the “Analyze” screen.
P a g e | 78 6.8 Comments The comments screen is accessed from the “Pressures” screen. The “Comments” screen is designed to give the user several opportunities to comment on the sample point. The user may check boxes from a group of populated comments. These comments are populated by the use of the Configuration Editor as described in section 7.
P a g e | 79 The open text boxes can be populated by tapping on the text box and tapping the keyboard symbol to open the touch screen keyboard. The user may then type in any comment that is needed. Once the user is done making comments they may progress to the next screen by tapping the “View Data” button. The user may also return to the Pressures Screen by tapping the “Pressures” button.
P a g e | 80 6.9 View and Store Data The “View Data” screen is intended to let the user view all of the data collected for this ID. If the user is satisfied with the data viewed on this screen, then the user can tap the “Store” button to save the data in the .csv file. If the user is not satisfied with the results then the user may tap the “Analyze” button to go back and take the reading again.
P a g e | 81 Once the store button is tapped the data is stored in a .csv file on the Trimble handheld computer. The data may be accessed by either pressing “View Files” on the Main Menu or “Browse File” on the Analyze screen. The files are located in the directory as shown below.
P a g e | 82 6.10 Utilities The “Utilities” menu is accessible from the main menu. The “Utilities” menu contains the information needed to assist in keeping the user informed about the status of the Envision® gas analyzer.
P a g e | 83 6.10.1 Well ID Maintenance The “Well ID Maintenance” feature of the utility menu is intended to allow the user to create or delete ID’s while in the field. Tapping the “Well ID Maintenance” button will take the user to the “Well ID Maintenance Screen”.
P a g e | 84 6.10.1.1 Create New Site The Well ID maintenance screen will allow the user to make a new site for the existing ID set installed in the Trimble handheld computer. 1) Tap the text box between the “New Site” and “New ID”.
P a g e | 85 2) Open the touch screen keyboard by tapping the key board Icon at the bottom of the touch screen.
P a g e | 86 4) Tap the “New Site” button 5) The new site name will now appear in the “Site” text box and a default ID will be generated 6) Tap the keyboard key to close the touch screen keyboard.
P a g e | 87 7) The new Site is now stored in the ID set located on the Trimble handheld computer. 6.10.1.2 Create New ID The Well ID maintenance screen will allow the user to make a new site for the existing ID set installed in the Trimble handheld computer.
P a g e | 88 2) Open the touch screen keyboard by tapping the key board Icon at the bottom of the touch screen.
P a g e | 89 5) Select the Wellhead Type. If the user desires to manually type in a flow at the selected point each time then the user may select user input. 6) Select the appropriate wellhead “Pipe” size (When applicable).
P a g e | 90 7) Select the appropriate “Plate” if using an orifice plate. If there is no orifice plate then do not worry about the “Plate” size. 8) Once all of the parameters are correct tap the “New ID” button 9) The new ID name will now appear in the “ID” text box.
P a g e | 91 10) The new ID is now located on the Trimble handheld computer. 11) If the user is at the monitoring point, the GPS location or Well Barcode may now be recorded by using the mark feature.
P a g e | 92 13) Tap the GPS button to mark the GPS coordinates or tap the Barcode button to mark the Barcode 14) Once the GPS location or Barcode has been recorded then a comment will appear at the top of the screen “Site/ID marked by GPS” or “Site/ID marked by Barcode”. If the location failed to mark then the message will read “GPS data not valid” or “Failed to find Barcode”. 15) The new ID is now updated and located on the Trimble handheld computer.
P a g e | 93 6.10.1.3 Delete Site The software on the Trimble handheld computer will let the user delete a site from the configuration file loaded on the Trimble handheld. Deleting the site will NOT delete any data stored in the .csv data files. CAUTION: Deleting a site will also delete all the wells associated with it.
P a g e | 94 3) Tap the “Clear Site” button 4) The “Confirm Clear Site” message will appear. If the user is sure that they wish to delete that site then they can tap the “OK” button. If the user does not want to delete this site then tap “Cancel”.
P a g e | 95 5) The user may now return to the Analyze or Utilities menu by tapping the “Analyze” or “Utilities” button at the bottom of the touch screen. 6.10.1.4 Delete ID The software on the Trimble handheld computer will let the user delete an ID from the ID set loaded on the Trimble handheld. Deleting the ID will NOT delete any data stored in the .csv data files.
P a g e | 96 3) Tap the “Clear ID” button 4) The “Remove ID from Site in Configuration file” message will appear. If the user is sure that they wish to delete that ID then they can tap the “OK” button. If the user does not want to delete this ID then tap “Cancel”. 5) The user may now return to the Analyze or Utilities menu by tapping the “Analyze” or “Utilities” button at the bottom of the touch screen.
P a g e | 97 6.10.1.5 Mark Location If the user is at the monitoring point, the GPS location or Well Barcode may now be recorded by using the mark feature. This feature is located in the “Well ID Maintenance” section of the program and may be accessed from the Utilities screen or the “Select ID” screen. 1. 2. Using the dropdown menu for site and ID, select the ID that is to be marked.
P a g e | 98 3. Tap the GPS button to mark the GPS coordinates or tap the Barcode button to mark the Barcode 4. Once the GPS location or Barcode has been recorded then a comment will appear at the top of the screen “Sit/ID marked by GPS” or “Site/ID marked by Barcode”.
P a g e | 99 5. The ID is now updated and located on the Trimble handheld computer. 6.10.1.6 Search location If the user is uncertain about the name of an ID that they want to modify then the user can use the search mode on the “Well ID Maintenance” screen. 1) If the users ID set contains stored GPS coordinates and/or Barcode information then the user may use the search method to populate the Site and ID that they currently located at.
P a g e | 100 3) The user may then select if the search will be performed by the use of the GPS or the Barcode. The user must tap one of the options. 4) The software will then automatically populate the Site and ID with the correct information. The message “Site/ID selected by GPS” or “Site selected by Barcode” will appear.
P a g e | 101 5) The user may now perform any ID maintenance desired. 6.10.2 View Missed Well Report The View Missing Well Report was designed so that the user may determine if there are any monitoring points that have not been measured during the current month. The software compares the site monitoring points stored in the configuration file to the data that has been stored in the current months .csv file.
P a g e | 102 The user may return to the Main Menu or the Utilities screen by tapping one of the buttons at the bottom of the touch screen. 6.10.3 Meter Status The meter status screen is accessible from the Utilities screen. This screen is intended to provide critical operational information to the user. This screen is accessible from the utilities screen.
P a g e | 103 The “Meter Status” screen gives the user useful information about the status of the Envision® meter. Battery time remaining – Indicates approximately how much time the Envision® has until the battery needs charged. Meter Temperature – This displays the internal temperature of the Envision® gas analyzer. O2 cell replacement – The date indicated is the date the O2 cell was installed.
P a g e | 104 6.10.4 License Manager The Elkins Gas Analyzer software will not run unless a license is activated. Licenses not yet activated will appear as “Unlicensed Options”. Once activated, licenses will show as “Licensed Options”. To activate your Elkins Gas Analyzer package, complete the following steps. 1. Select “License Manager” in the “Utilities” screen.
P a g e | 105 2. Enter your license key in the designated area. 3. Once the license key is entered click “Activate Options”.
P a g e | 106 6.10.5 Set Options The purpose of the set options screen is to allow the user to determine specific data reporting parameters. 1. Click “Set Options” on the “Utilities” page. 2. Select Fahrenheit or Celsius for sample point temperature measurement.
P a g e | 107 3. Set the decimal gas measurement precision to tenth or hundredths.
P a g e | 108 6.10.6 Restore All Factory Cal 1. Tapping “Restore all Factory Cal” will restore the calibration values from its last factory service. If a sensor has drifted significantly, a message indicating such may appear when the restore all factory cal button is pressed. If restoring factory calibration would adversely affect the ability of the user to calibrate the unit, the user will be notified and allowed to cancel the operation.
P a g e | 109 6.11 Stored Data Return to the Elkins Gas Analyzer Main Menu and then click on “View Files”. A file explorer window will open to the directories used by the gas analyzer. The user can then locate the files that contain historical data from past monitoring events.
P a g e | 110 6.12 O&M Manual Return again to the Main Menu, and then click on “View Manual”. The O&M manual button will take the user directly to an HTML or PDF version of the O&M manual. The blue texts are hyperlinks to the relevant sections of the manual. Tapping on the blue text will take the user directly to that section of the manual.
P a g e | 111 6.13 Exiting the Gas Analyzer Software To exit the program, return to the Main Menu through the buttons on the bottom of the screen. You may then click “Exit Program”, then “OK” to close the Elkins Gas Analyzer.
P a g e | 112 7 The Envision® Gas Analyzer Configuration Editor Software (GAC) The Trimble handheld computer software can utilize an ID set made by the user on a desktop or laptop computer. The configuration editor software is provided by Elkins Earthworks® and is included on the flash drive with your original purchase. This software allows the user to create, modify and merge data sets. The instructions below describe the process of generating a new ID set to import into the Trimble handheld unit. 7.
P a g e | 113 7.3 Add a Site, Technician, Valve Adjustment, Well Condition and/or Well Repair 1) Click on the “Edit Tables” tab and select the desired category to add to.
P a g e | 114 2) A text box will open for the user to enter a new item within the selected category. 3) Click inside the text box, type in the new item, then tap the “Add” button. 4) To delete an item, highlight the item and click on the “Delete” button.
P a g e | 115 7.4 Add a monitoring point Click on the “Add Row” button on the upper left corner of the screen. A row must be selected where the new one is to appear.
P a g e | 116 Select the “Site”. If the user needs to make a new site then the “Add Site” button can be used to make a new site. Next tap the “Add Well” button on the right side of the screen.
P a g e | 117 Click inside the text box and type in the name of the new well. The text in the box that the user just entered will stay once the ID is added. This is done so that the user does not have to retype the common characters to each new well. To delete a well, select the well and click the delete button.
P a g e | 118 Once the well names have been loaded, the user may now configure each well. Click on the well that is to be configured. The user may now select the wellhead type, wellhead size, and orifice plate size. If the user desires to type in the flow in the field they may use the User defined type under “Well Designation”.
P a g e | 119 The user may now set acceptable ranges for use with the Trimble user interface. The user may do this by clicking in the appropriate box and typing in the desired values. When a measurement is within these ranges it will turn green on the Trimble handheld. Otherwise it will turn red. Once the well is configured the user should click on the “Update” button to save the changes and to return to the main screen.
P a g e | 120 7.5 Cloning wells To make it easier for the user to enter multiple wells that have the same configuration, the software was designed with a copy feature. Highlight the well to clone and tap the “Copy Row” button.
P a g e | 121 Once the “Copy Row” button from the top of the screen is selected the Well Entry list will open. Type (or cut and paste) a list of desired names for the new wells to be added, hitting the Enter key after each name. Select done when finished and new ID’s will populate into the ID set with the same well configuration settings as the originally highlighted well.
P a g e | 122 .
P a g e | 123 7.6 Delete Wells The user may delete a well from the ID set by highlighting the Well and clicking on the “Delete Row(s)” button.
P a g e | 124 The user may also delete multiple rows at the same time by holding the CTRL key and clicking the desired rows.
P a g e | 125 7.7 Combining wells from another ID set The Gas Analyzer Configuration Editor will let the user find a second ID set and combine selected wells into the new ID set. Click on the File tab, then the “Append” button.
P a g e | 126 Browse for the second ID set which contains the well ID’s that the user desires to add to the new ID set. Check the ID’s that should be imported into the new ID set and then click on Import.
P a g e | 127 7.8 Save File The user must click on the save button to save the changes that have been made to the ID set. The user may use the “Save As” button to specify a custom name for the file. The program ensures that the file name has the proper “.xml” extension.
P a g e | 128 7.9 ID set stored location on PC The ID set file is located in the c:/My Documents/Elkins Earthworks/Configuration directory. The user may have multiple ID set files referencing multiple sites that the instrument is used on. 7.
P a g e | 129 4) Select the file that contains the ID set that you want to manage and click on the “Copy File” button.
P a g e | 130 5) The selected ID set will then populate into the Configuration Editor. 6) Make any desired changes to the selected ID set.
P a g e | 131 7) After all changes have been made the user should send updated ID set back to the handheld.
P a g e | 132 8) Updated ID set will be sent to mobile device and changes to the ID set will be viewable once Elkins Earthworks® Gas Analyzer program on the handheld has been exited and restarted.
P a g e | 133 7.11 Importing GEM Configuration Files In order to import a GEM file, the user must find the location of an existing GEM .xml file on their hard drive. Press the import button and browse to the GEM file location. Note: Information imported into the Configuration Editor will be limited to well ID names and well configuration settings.
P a g e | 134 7.12 Print Preview The “Print Preview” button allows the user to view the entire ID set and all of the configurations set for those wells. The user may print the ID set from this feature.
P a g e | 135 8 Connecting the Trimble Handheld Computer to a PC 8.1 Windows Mobile Device Center Windows computers utilize Windows Mobile Device Center to connect and synchronize with mobile devices.
P a g e | 136 3) First click on Mobile Device Settings then “Set up your device”. 4) Check the items that you want to synchronize each time you connect to the Trimble. Then click on “Next”. We recommend not selecting any boxes since this will slow your synchronize time. Do not select the Files box as that may lead to contamination of the field data.
P a g e | 137 5) Name the Trimble
P a g e | 138 6) The Nomad will then Sync with the PC
P a g e | 139 8.2 Windows XP Machines 8.2.1 Download Active sync 1) Visit the following website: http://www.microsoft.com/windowsmobile/enus/downloads/eulas/eula_activesync45_1033.
P a g e | 140 5) The Synchronizing Wizard will open during the first connection. Click next. 6) Enter the name of what you want to call the Trimble that is being connected a. Synchronization wizard will now open. Select the tasks that you wish to synchronize each time the Trimble is connected. We recommend not selecting any boxes since this will slow you synchronize time. Do not select the Files box as that may lead to contamination of the field data.
P a g e | 141 7) Allow wireless connections option screen. Make sure the check box for “Allow wireless connections” is unchecked. Click on next. 8) The connection wizard will now store the user’s settings once the “Finish” button is clicked.
P a g e | 142 9) ActiveSync will now open and sync with the Trimble. The Trimble will now perform this function each time it is connected to the user’s PC.
P a g e | 143 11) Once the Nomad has synchronized, the files in the desktop folder are now exactly what is on the Trimble. The user may now disconnect the Trimble. 12) By selecting the desktop folder the user can view and modify any of the contents.
P a g e | 144 8.3 Transferring Files 8.3.1 Directory Structure The files associated with the gas analyzer program may be found on the Trimble handheld at C:\My Documents\Elkins Earthworks. This directory contains the following 3 directories: 1) Calibration Directory – Where two types of calibration files are stored. A new .csv file is generated each time the user performs a field calibration. These files may be used to verify that a field calibration was performed on a certain date and time. The .
P a g e | 145 3) Field Data Directory – This is where all the .csv field data files reside. A new file is generated each day and each month that a measurement is taken. These files may be opened with Excel. If the encryption option is enabled, .enc encrypted files are also present.
P a g e | 146 8.3.2 Copy Files from PC to Trimble 1) Right click on the file and click copy. 2) Open ”File Management” from Windows Mobile Device Center.
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P a g e | 148 3) Follow the path shown to the proper folder on the Trimble. Right click in an empty space and click paste. 4) If a file with the same name already exists, then a warning message may appear.
P a g e | 149 5) The file will now load onto the Trimble. 8.3.3 Copy File from Trimble to PC If an ID set is modified in the field with the Trimble unit then the user will want to place the modified file back onto the PC unit for backup and potential modification by the “Configuration Editor” software. 1) Synchronize the Trimble with the PC 2) Open ”File Management” from Windows Mobile Device Center.
P a g e | 150 3) Open the Nomad’s “Configuration” folder which can be found by following the path shown. Right click and copy the ID set file.
P a g e | 151 5) Click paste. If an ID set file with the same name already exists, then a warning message will appear. If you are sure you want to replace the file then click on “Copy and Replace” 6) The file is now located on the user’s computer.
P a g e | 152 9 Errors and Troubleshooting 9.1 Envision® Error Conditions: Error conditions from meter are presented by a blinking red “!” next to the connect icon in the header of each screen. The description of the error will appear in the “Meter Status” screen under error conditions. The following are error conditions that may be displayed: 1) “Component Failure -Error #1” a. Explanation - The battery gauge is displaying erroneous battery data, as a result of a charging chip failure.
P a g e | 153 a. Explanation- Oxygen sensor is out of spec. Potentially bad sensor. b. Solution – Restore factory calibration on O2 sensor and recalibrate. If recalibration does not solve the error then power down Envision® unit and reconnect to the Trimble handheld computer. If this does not correct the problem call technical support at Elkins Earthworks® 330-725-7766. 9) “Low Flow Rate” a. Explanation- Low Flow from clogged or pinched sample train. b.
P a g e | 154 a. Explanation- Bluetooth connection has been disrupted either due to interference or user has walked out of range from the Envision® gas analyzer. b. Solution – Walk back within range of the Envision® gas meter and let the Bluetooth attempt to reconnect. If this does not solve the problem then power down Envision® unit, return the Elkins Gas Analyzer software to the “Select Meter” screen on the Trimble. Reboot the Envision® unit and try to connect to the Envision® gas analyzer.
P a g e | 155 10 Envision® Maintenance 10.1 Factory Maintenance The Envision® gas analyzer should be returned to the factory at a minimum once per year for inspection and factory calibration. 10.2 Field Maintenance The Envision® gas monitor has two internal filters. Over time these filters may clog or become fowled and may need to be changed. In order to change the filters, locate the aluminum door on the back of the Envision® gas analyzer under the protective black boot.
P a g e | 156 The user may now remove and replace the filters by turning the Luer filter fittings. Make sure the seal is still in place and re-attach the filter door. Replacement Luer filters may be purchased from Elkins Earthworks®.
P a g e | 157 11 Warranty 11.1 Envision® Warranty Elkins Earthworks®, LLC warrants its products to be free from defects in workmanship. This warranty shall be fulfilled by Elkins Earthworks® repairing or replacing its products, as necessary, to cure any such defect, which is reported to Elkins Earthworks® within 12 months of the ship date. All warranty work will be done at Elkins Earthworks®.
P a g e | 158 Software/Firmware Extended Limited Warranty. Commencing on the Software/Firmware Extended Limited Warranty Commencement Date and during the Software/Firmware Extended Limited Warranty Term set forth on the Signature Page, Trimble Navigation Limited warrants that the Trimble Navigation Software and Firmware Products will substantially conform to the published specifications provided it is used with the Trimble products, computer products, and operating system for which it was designed.
P a g e | 159 12 Problems and Potential Solutions 12.
P a g e | 160 13 Envision® Specifications Operation Range Unit Minimum Maximum Envision® -4° F 122° F Comments Heater unit option for low temperatures Gas Sensors Gas Sensors Range CH4 0 - 100% Infra-red cell CO2 0 - 100% Infra-red cell O2 0 - 22% Electrochemical Comments Gas Sensor Accuracy Range CH4 CO2 O2 0-5% ±0.3% ±0.3% ±0.25% 5-30% ±1.0% ±1.0% ±<1% (Max O2 = 22%) 30 - 100% ±<2.0% ±<2.0% NA Resolution 0.01% 0.01% 0.
P a g e | 161 Pressure Sensors Range Static (-)5 H2O to 5" H2O (-)130" H2O to 130" H2O Accuracy 0.1375 +/- 2% of reading Resolution 0.001 0.01 T90 <1 ms <10 ms Accuracy 0.1375 +/- 2% of reading Resolution 0.001 0.01 T90 <1 ms <10 ms Accuracy NA +/- 2% of reading Resolution NA 0.01 T90 NA <10 ms Comments According to sensor manufacture specs.
P a g e | 162 Battery Life (NiMH) Temperature (°F) 77 50 32 14 -4 Life (hours) 13.8 13.1 10.5 6.6 2.
P a g e | 163 14 Contact information Service and Sales: 865 West Liberty, Suite 220 Medina, Ohio 44256 Phone: 330-725-7766 Fax: 330-725-7799
