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Scott Scout Manual - Enviro

1. A the remotely sampled environment and the sample line tubing while establishing the first line of protection for the Scout against moisture and particulates being drawn from the remote environment K J This protection is provided by a special replaceable filter located in the top area of the probe near the outlet Always check the probe prior to use Unscrew the top section of the probe and examine the filter for any contamination if found change out the filter Also make sure that moisture has not been trapped in the probe if so completely drain and dry it out before use 4 5 2 Sample Tubing The tubing ID should be no greater than 3 10 Tubing length should not be longer than necessary as sample lag time to the instrument P N 087 0019 Rev C Scout Portable Gas Monitor will be unnecessarily long Lag time could prove to be extremely important if a high gas condition is encountered and escape procedures are to be implemented As a general rule most sensors require the time for drawing an atmospheric sample to the instrument to be Integral Pump one 1 second per foot of sample line Hand Aspirator one 1 ft per squeeze cycle However each sensor has a characteristic response time for its target gas This sensor response time must also be considered when calculating the total time required for the remote sample to reach the instrument and provide a stable gas co
2. connector pins are located Clean the detector element in a GC grade methanol in a ultrasonic cleaner After cleaning carefully reinstall the detector element back into the PID sensor Reinstall cap and filter Test the Scout PID for zero stability and reclean if necessary Figure 10 Figure 11 75 September 2009 Cleaning the PID Sensor Lamp Figure 13 Remove Detector Element as in previous steps Remove lamp by pushing its tail through the hole in the bottom of the sensor by using a plastic rod or wooded Q Tip Handle Figure 12 Figure 12 Re install the Lamp into the sensor Make sure that the lamp s metallized pads Figure 14 are aligned against the excitation flaps Figure 15 inside the lamp s cavity and it is seated all the way into the lamp Grasp the lamp by the cylindrical glass body Figure cavity 13 and clean window by rubbing it against the polishing pad supplied with Tool Lamp Cleaning Kit Use circular motion and try to keep the window surface flat in relation to the pad Five seconds Figure 14 of rubbing will be enough in most cases Another indication of cleaning completeness is that you have used approximately 1 6th of the pad s surface during this procedure WINDOW PIN 087 0019 Rev C 76 September 2009 EXCITATION IHULE ED pano Reinstall the Cap and Filter Assembly by pushing it down on the sensor housing uniformly until it snaps into place Make
3. 34 September 2009 4 9 Combustible Leak Detection Mode All Scouts are capable of using the combustible leak detection mode This feature must be enabled in the General Display or Technical Display Menus When this feature is enabled you will be able to use the Scout in conjunction with the pump and remote sampling system to find low concentration gas leaks The combustible sensor requires oxygen to operate properly When a normal Oxygen level of 20 9 decreases to below 10 and the Combustible gas alarm is not activated a potentially combustible hazard still could exist When the oxygen is below JAKI 10 the combustible sensor can no longer be relied To find the source of a leak place your probe in upon to indicate that a combustible gas is present suspected leak locations and move the probe slowly until the highest concentration is located The Scout shows the LEL in the upper left corner of the Leak Bars screen An audible Geiger counter tick rate indicates the gas concentration The lower left Function Button cycles the tick volume through TICK 0 off TICK 1 The above screen denotes that a dangerous gela E Mene Joel condition may exist as the LEL gas concentration is Note Some sensor noise will be present and reading unknown up to 150 ppm with clean air is not uncommon Note The backlight normally is disabled in leak detection mode to reduce the sensor noise The upper left Function But
4. BE SAFE Any alarm or any indication on the instrument screen denoting the presence of a combustible gas or vapor a lack or enrichment of oxygen or the presence of a toxic gas or gases requires the user to follow all company established safety procedures CALIBRATION IS CRITICAL Calibration should be performed using a self determined schedule that takes into account instrument use and environment conditions Additionally the Scout should always be re calibrated after exposure to high concentrations of combustible gases or vapors or toxic gases PIN 087 0019 Rev C WATCH OUT FOR ALARMS AND OUT OF RANGE CONDITIONS Operators should be aware of conditions where the concentration of the gas is outside the detectable range of the instrument See Section 3 3 for additional details 10 September 2009 Operator Alerts amp Messages Knowing how the Scout alerts operators to environmental and or instrument conditions is critical to safety 3 1 Gas Warnings and Alarms When a gas alarm condition occurs the Scout will notify the user in one of several ways depending on the type of alarm or message the instrument has encountered WARNING Beeping tone and LED flashing once per 2 seconds ALARM Whooping and LED strobing twice per second P N 087 0019 Rev C IMPORTANT The Scout s alarm levels and features are configurable by the user The Scout comes configured from the factory with WARN and ALA
5. P N 087 0019 Rev C September 2009 Contents Contents Getting Started 1 1 Unpacking 1 2 Storage 1 3 Operational Environment 1 4 Registration Powering Your Scout 2 1 Alkaline Battery Pack 2 2 Lithium lon Battery Pack 2 3 Inductive Battery Charger Rules of Operation Operator Alerts amp Messages 3 1 Gas Warnings and Alarms 3 2 Low Battery 3 3 Over Range Conditions 3 4 Negative Gas Readings 3 5 Remote Sampling Mode Leak Test 3 6 Low Flow Alarm 3 7 Shutter Error 3 8 Sensor Marginal P N 087 0019 Rev C CO O RINI ODO ODO OO O WwW O ok ENEN N gt 12 12 13 14 14 3 9 Replace Sensor Operation 4 1 Scouts Modes of Operation 4 2 Instrument Turn ON Turn OFF 4 2 1 Turning On the Instrument 4 2 2 Turning OFF the Instrument 4 3 Functional Test 4 3 1 Zero Calibration amp Oxygen Span Calibration 4 3 2 Gas Bump Test 4 4 Instrument Calibration 4 4 1 Zero Calibration amp Oxygen Span Calibration 4 4 2 Gas Calibration Preparation 4 5 Remote Sampling 4 5 1 The Sample Probe 4 5 2 Sample Tubing 4 5 3 Sample Draw Hand Aspirator 4 5 4 Integral Sample Pump 14 15 15 18 18 19 20 20 21 23 24 24 27 28 28 29 29 September 2009 4 5 5 Remote Sampling Procedure 4 5 6 Low Flow Alarm 4 6 STEL TWA 29 31 32 4 6 1 What are STEL and TWA Values 32 4 6 2 Displaying STEL and TWAAlarms 32 4 6 3 About STEL Alarms 4 6 4 About TWA Alarms 4 7
6. be vacated immediately to avoid overexposure to Toxic gases which could result in a serious injury or death 4 hour exposure of 75 ppm 4 hour exposure of 100 ppm 4 hours x 75 ppm 4 hours x 100 ppm 8 hours 88 ppm STEL Calculation Example Instrument turned on 9 minutes ago with a 5 minute exposure at 25 ppm and 4 7 Ai F CO F t a 4 minute exposure at 10 ppm Ir Free Calture For Air Free CO Measurement the instrument must 5 minutes x 25 ppm 4 minutes x 10 ppm 6 be used in the remote sampling mode minutes x 0 ppm 15 minutes 11 ppm The Scout can provide air free CO measurements AIr Free values rather than as measured values 4 6 4 About TWA Alarms indicate the actual Carbon Monoxide content of the A time weighted average or TWA is the maximum combustion product as it occurs before dilution in the average exposure for a worker calculated for an 8 surrounding air hour workday The Scout can be configured to automatically calculate and display Carbon Monoxide concentrations as Air Free CO readings when the CAUTION CAUTION proper conditions exist This mode of monitoring automatically displays Air Free CO on the Normal Gas Display screen To display Air Free CO When a TWA alarm is activated the area should be vacated immediately to avoid over exposure to i Toxic gases which could result in a serious injury Carbon Monoxide and Oxygen aay ust or death be installed in the instrument Air Fr
7. CO and H2S Figure 9 Cal Before Lates Cal Date 03Dec d Reserve 117 Status Passed Tatar P N 087 0019 Rev C Scout Portable Gas Monitor PID Sensor Calibration Calibrate the combustible and toxic sensor prior to calibration of the PID sensor Use the lower right button when in the calibration screen to select only the PID sensor Apply 100 ppm Isobutylene when the VOCi sensor is selected After calibration you will note a CO reading due to the CO sensors cross sensitivity to Isobutylene Wait until the CO reading drops to zero before using the Scout to monitor for gases Other gases and concentrations can be selected by beginning the calibration process on the PID sensor and then press the lower right button The SELECT CAL GAS screen will be displayed By pressing the lower right button when the VOCi sensor is selected the sensor will toggle between select and Isobutylene When the Select is displayed the Scout should be calibrated with the gas currently selected as the target VOC When the selected VOC is the calibration gas VOC s will be displayed during calibration rather than VOCi Version 4 Scouts now display the oxygen readings during calibration This ensures the proper percentage of oxygen is present for combustible 12 September 2009 calibration and the operator notes that the oxygen sensor is not being calibrated the oxygen sensor is calibrated during the fresh air zero process In
8. I R i S Slave Docking Cradle I R i S Scout PC Software Flue Gas Probe Particulate Filters for 12 probe Qty 100 Hydrophobic filter for 12 probe 12 probe w hydrophobic filter particulate filter amp butyrate plastic tube 12 probe w hydrophobic filter particulate filter amp stainless steel tube 100 particulate filters for 12 probe 30 Barholing Probe Brass Tube 30 Barholing Probe Polycarbonate Tube 10 Flue Gas Probe Probe Scrubber Attachment NOX Probe Scrubber Attachment Activtd Mii September 2009 Sensors 096 2522 096 2523 O2 Sensor Oxygen CO Sensor Carbon Monoxide Misc Parts amp Accessories continued 096 2524 096 2525 096 2526 096 2527 096 2528 096 2529 H2S Sensor Hydrogen Sulfide Cl Sensor Chlorine NH3 Sensor Ammonia SO2 Sensor Sulfur Dioxide Value2 TM Carbon Monoxide Hydrogen Sulfide PH3 Sensor Phosphine Sensors continued 096 2530 096 2531 096 2532 096 2533 096 2534 096 2535 096 2549 CIO2 Sensor Chlorine Dioxide HCN Sensor Hydrogen Cyanide NO2 Sensor Nitrogen Dioxide NO Sensor Nitrogen Oxide Combustible Sensor for Scout Dummy Sensor Plug use in all un used sensor locations Combustible Dual Range Sensor LEL amp Gas P N 087 0019 Rev C 66 September 2009 Service and Repair Scott Health amp Safety 4320 Goldmine Road Monroe NC 28110 For service or replacement parts Phone 1 800 247 7
9. If desired individual users may be identified by name initials or any desired code using a function available to the Setup User When a named or coded user is defined in the setup they also have defined access privileges identical to General User Technical User or Setup User Log in and log out times of individual users are recorded in the instrument data log Each user has an individually assigned password if desired See Section 6 1 for login directions The following list shows the displays available Any of the displays can be enabled or disabled for General or Technical setup Users separately via Setup Gas Readings Main Display in this manual which includes large digits a battery icon showing charge status and text indicating special condition factory default enabled P N 087 0019 Rev C Zoom into Alarm Very large digits for one gas in alarm Zero and Cal Access to routine calibration factory default enabled Hold Peaks Large digits showing maximum readings for each gas and minimum oxygen below 20 9 with Reset Live with Peaks Current readings and maximum readings in tabular layout with Reset Live STEL TWA Current readings and accumulated averages in tabular layout enabled for Technical User by factory default Leak Bars Graphic display of very small changes in combustible concentration enabled for Technical User by factory default s m s BD JA SS See Scout A
10. TWA and ceiling limits The MASTER MENU has been modified to include VOC Selection Figure 5 The Calibration Figure 6 History screen will allow the user to review the last To start s download 10 calibrations This will allow the user the ability to insert Scout in a review Reserve number to determine if sensors Charging stand or could be poisoned or damaged rear I link A Malala Lo A P e MASTER MENU 7 hiet E Note If you should ever need a record of an event SetuP va i an IR Board can be installed at any time and the Alarm Setpointg record may be downloaded Event Log et STEL TUR A REMOTE SAMPLING X Internal Pumet Yes Remote Gas AlarmiYes Figure 7 Remote STEL TWA Yes ation no Figure 5 i Set Flow The Event Log screen will now let a user easily determine if an IR Board 096 2509 is installed for downloading By selecting Event Log Download P N 087 0019 Rev C 71 September 2009 By selecting MASTER MENU Calibration History you will now see the following screen i ar ie LIBRATION AGE GA RESERUE gd a days 130 Figure 8 f UOC A days Cal O 9 days Cal Hz S 9 days Cal Meth 9 days Cal So SE SE By selecting an individual sensor and then pressing the lower right button you will now be able to view the last 10 calibrations Figure 9 for each sensor Note The VALUE2 combination CO H2S sensor will store 4 calibrations for
11. X m Zero Next P N 087 0019 Rev C CAUTION CAUTION This procedure should never be performed if the atmosphere being monitored is not free from combustible and or toxic gases That condition would program calibration errors into the instrument Before Test Gas is applied to the instrument a Zero Calibration should be performed Zero is inhibited if the displayed reading is greater than half the alarm set point for the sensor When sensor zero is inhibited a warning screen directs the user to zero the sensors in clear air only If the user verifies that the air is fresh by pressing the upper left Function Button the automatic zero procedure executes Otherwise the instrument returns to normal operation Note Scouts with software versions below 3 2 2 do not apply the inhibit during the first minute of operation 20 September 2009 1 Press the lower left Function Button to start the automatic Zero calibration procedure The following screen will display Zero Calibration Please wait while Sensors Zero 2 When the Zero Calibration has been completed the Main Display screen will automatically be displayed A warning display will indicate the problem if any sensor fails to zero correctly After acknowledgement the gas reading for a failing sensor alternates slowly between dark and light 4 3 2 Gas Bump Test The gas bump test exposes the instrument to a known concentration of gas
12. and perform the Leak Test per Steps 1 through 5 of the Bump Test Procedure Section 4 2 2 From the Main Display screen press the lower right Function Button Next The following screen will display 4 Cal Escape X 5 Zero Next Press the upper left function button Cal to initiate the gas calibration procedure The following screen will display If calibration gas P N 087 0019 Rev C is other than the values shown are to be used refer to the Scout Advanced Users section for a description of how to change the calibration gas values for auto calibration The shaded area on the screens denotes a flashing display APPLY GAS Exit Gas Concen Status CO 50 ppm Apply H2S 25 ppm Apply COMB 50 LEL Apply With the calibration gas cylinder and tubing all connected turn on the regulator to begin the flow of gas to the instrument After gas has been flowing for several seconds the screen will change to the following display denoting that the gas has been detected and calibration is to begin 24 September 2009 DETECTING 7 Exit Gas Concen Status CO 50 ppm Sensed H2S 25 ppm Sensed COMB 50 LEL Sensed After several seconds the screen will again change to the following display showing values for each of the gases applied These values will be based upon the last calibration of the Instrument CALIBRATING Ex
13. cylinder 2AL 34L Chlorine 5 ppm gas cylinder 2AL 34 L also used for Chlorine Dioxide calibrations Nitrogen Dioxide 5 ppm gas cylinder 2AL 34L Nitric Oxide 30ppm gas cylinder 2AL 34 L P N 087 0019 Rev C 077 0351 077 0352 077 0353 077 0354 077 0355 077 0356 077 0357 077 0358 077 0367 077 0371 077 0372 077 1239 096 2545 077 0018 077 0254 O2 LEL CO H2S gas mixture cylinder 2AL 34L O2 LEL CO H2S gas mixture cylinder BAL 58L O2 LEL CO gas mixture cylinder 2AL 34L O2 LEL CO gas mixture cylinder 6D 103L O2 LEL H2S gas mixture cylinder 2AL 34L O2 LEL H2S gas mixture cylinder 8AL 58L Methane 7HP 34L gas cylinder 32 LEL 1 62 v v 50 Propane equivalent Methane gas cylinder 6D 103 L 32 LEL 1 62 v v 50 Propane equivalent 99 9 Methane gas cylinder 7HP 34L 25 LEL Pentane 19 O2 balance Nitrogen gas cylinder 6D 103L 25 LEL Pentane 19 02 50 PPM CO balance Nitrogen gas cylinder 6D 103L Phosphine 1ppm gas cylinder 2AL 34 L High Concentration Combustibles Calibration factory Scout calibration for v v Methane applications 2AL 8AL 6D 5 regulator w gauge 2AL 8AL 6D 1LPM Regulator w gauge 63 September 2009 Calibration Accessories continued 077 0342 077 0343 077 1238 077 1268 077 1271 096 2506 10 096 2506 11 096 2506 12 096 2506 13 096 2506 14 096 2506 15 096 2506 16 096 2506 17 096 2506 18 2AL 8AL 6D Demand Flow Regu
14. inlet port and automatically turns on the pump if so equipped Instruments Equipped with Pump The following screen will come on indicating a leak test requirement The leak test is performed to ensure the pump is operating correctly P N 087 0019 Rev C Leak Test BLOCK PROBE INLET Block the inlet port COMPLETELY by connecting the other end of the Tygon tubing to the instrument inlet port with the regulator valve shut off The Leak Test Passed screen will display as long as the cylinder regulator remains connected and blocking off flow Performing Leak Test The example shows the standard accessory probe with tubing being blocked by the user s thumb September 2009 6 10 Open the Regulator valve to start the gas flow to the instrument Note that the display indicates the gases being delivered to the instrument The screen indicates the applied gas concentration which may be either increasing or decreasing depending on the sensor When each sensor passes through the Alarm set point an alarm sounds and flashes The gas concentration display flashes to indicate an Alarm condition After the Gas displays have stabilized they must all be noted to establish if they fall within the 10 criteria If any display falls outside the 10 criteria a full calibration must be performed See Instrument Calibration Section 4 4 Remove the Tygon tubing from the instrument inle
15. list available at log in 49 DATE amp TIME Setup Menu Accept displayed date and time or adjust as needed Year Month Day Hour Minute Accept Year of century 3 letter abbreviation 24 hour format Activate any highlighted item then enter each Accept all items when bottom line highlighted INSTRUMENT PARAMS Parameters Menu Latching Alarms Alarm Quiet Confidence Chirp Backlight Secnds Display Contrast more Params TWA Period Cal Period Min Span Reserve Date Format Temp unit Temperature Choose Latching or Non Latching Alarms 0 to 99 seconds after acknowledging or Silent alarms Alternately switch chirp On Off Set 5 to 99 seconds or On continuously Set for optimum display appearance Brings up the following screen with more options Number of hours to accumulate toxic exposure 0 to 99 days Margin above limit for calibration failure to warn user 20 is the default Choose yyMmmdd yy mm dd or dd mm yy Choose Celsius Fahrenheit Shows interior temperature within 10 degrees F 50 REMOTE SAMPLING Paramters Menu Internal Pump Remote Gas Alarm Remote STEL TWA Set Flow flow meter Liquid Sense Choose Yes No pump operation Choose Yes No audible alarms with closed shutter Yes No exposure accumulation with closed shutter Set pump flow rate using a filter stack and flow meter Low Med Hi sensitivity to sudden flow res
16. sensor when one known VOC is present and that VOC is selected The Scout will allow the user to choose the target gas by CAS number or name The Scout will display Figure 1 whatever information is highlighted by the user Name CAS number abbreviation or formula that is selected when the user exits the screen UOC SELECT Exit Alrm 5TEL TlJA FPem CF sobutyulene Figure 3 P N 087 0019 Rev C Scout Portable Gas Monitor VOC alarms and calibration gas are selected from the VOC parameters menu This screen can be accessed when the user is in the setup mode Refer to the Scout Advanced Users Section of this manual on how to enter this user level This allows the user to set the alarm setpoints per your organizations alarm levels The settings you are modifying are for the selected VOC In Figure 3 the alarm setpoints for Isobutylene are being adjusted If alarms are turned off you will periodically see the screen in Figure 4 display to let you know no alarm setpoint is programmed and that no VOC alarm will occur ML RS X dlarm Level Uff PPri Warning Lvliorf PEM STEL Alarm Off PEN TWA Alarmi OFf PFM Lal ke i A FPM 1 70 September 2009 Scout Portable Gas Monitor The alarm setpoints are based on information from events you will see the following screen if an IR recognized organizations like NIOSH and ACGIH Board is installed Annually these organizations will develop new STEL s
17. to test to see if it measures the gas within 10 of the actual gas concentration An instrument that fails this test should be calibrated P N 087 0019 Rev C Components Required A Calibration Gas Ensure cylinders contain the appropriate gas mixtures for the instrument s sensors As an example if the instrument is configured for Oxygen H2S CO and Combustible operation a suitable mixture is 19 Oxygen 25 ppm Hydrogen Sulfide 50 ppm Carbon Monoxide 1 62 Methane 32 LEL Balance Nitrogen Be sure the expiration date on the gas cylinder has not exceeded B 2 ft of 3 16 ID Tygon Tubing C Regulator providing a flow rate of 0 5 liter minute All the above components are available in kit form Refer to the Accessories Section for a complete listing of calibration and test gas available for the Scout 21 September 2009 Bump Test Procedure 1 2 Thread the Regulator Pressure gauge to the calibration gas cylinder by turning it clockwise until hand tight If the instrument is equipped with a pump a demand flow regulator may be used if desired If it is not equipped with a pump use a 0 5 lpm regulator Check the cylinder pressure Do Not Use if the pressure is low Change the cylinder if reguired Connect the Tygon Tubing to the Regulator outlet Close the Intellishutter by pushing the shutter slide forward towards the display This exposes the probe and calibration
18. 257 Fax 704 296 3370 email service scotthealthsafety com 8 30 AM to 5 00 PM EST P N 087 0019 Rev C 67 September 2009 PIN 087 0019 Rev C 68 September 2009 Addendum 1 PHOTO IONIZATION DETECTOR PID FOR VOLATILE ORGANIC COMPOUNDS VOC THIS ADDENUM IS FOR SOFTWARE VERSION 4 0 0 AND HIGHER SUPPORTING THE PID SENSOR SERIAL NUMBERS gt 10 000 Turning the Scout On Press any button Figure 1 and hold while the instrument displays HOLD release when the instrument shows RELEASE and the instrument will then power up if batteries are installed Turning the Scout Off Press the two lower buttons simultaneously and the Shut off Scout screen will appear Press the upper left button to turn off the Scout To make the PID controls much easier you can press either left button to call up the VOC SELECT Menu Figure 2 PIN 087 0019 Rev C From the VOC SELECT menu the user can turn the PID sensor off easily when it is not needed thus extending the PID bulb life Turning the PID sensor off will enhance instrument run time between battery recharging and replacement 69 September 2009 The other feature of the PID SELECT menu is to select the VOC you want to monitor Be aware that the PID is cross sensitive to most VOC gases If several gases are present the sensor will add the response of all gases together and display the sensors responce as the target gas The PID is the perfect
19. 500 ml minute flow regulator be tween the gas supply and the instrument 4 2 3 Use a manually controlled supply with an overflow tee 4 2 3 1 An EXHAUST HOOD IS ESSEN TIAL FOR SAFETY when using this method 4 2 3 2 Connect 3 16 inch I D tubing to at least two barbs of a tee fitting 4 2 3 3 Connect one of the lengths of tub ing to the gas source 4 2 3 4 Connect another length of tubing from the tee to a flow meter such 53 as a Rotameter Make sure any flow adjustment on the flow meter is fully open to minimize backpressure 4 2 3 5 While blocking the third branch of the tee adjust the flow rate to at least 800 ml minute but no more than 1 liter per minute 4 2 3 6 Move the tubing from the flow meter to the pump inlet The shutter must be closed first 5 Calibrate the instrument 5 1 92 slej 5 4 5 5 5 6 5 7 Prepare the sensor and calibration gas as in the preceding steps Close the Scout shutter Connect the gas supply After a few seconds the CALIBRATE COMB GAS display will show a gas reading which corresponds to what would have been dis played as a measurement After several more seconds usually less than two minutes the CALIBRATE COMB GAS display will indicate that calibration is done and gas should be removed Disconnect the gas supply Connect a short length 3 to 12 inches of tub ing to the pump inlet so the instrument can draw fresh air instead of reci
20. Air Free CO Feature 4 8 Dual Range Combustibles Sensor 4 9 Combustible Leak Detection Mode Maintenance 5 0 General Maintenance 5 1 Sensor Replacement 5 1 1 Sensor Replacement Procedure 5 2 Pump Installation 5 3 Pump By Pass Scout Advanced Users Section 6 0 Navigating Scout Menus 6 1 Scout Login 6 2 Scout Menu Flow Diagram 6 3 Scout Menu Item Descriptions 6 4 Gas by volume Calibration P N 087 0019 Rev C 32 33 33 34 35 37 37 37 37 38 39 41 42 43 44 47 93 6 5 Scout Troubleshooting 59 Appendices 57 Appendix 1 Technical Specifications 58 Appendix 2 Gas Interferences 61 Appendix 3 Combustible K Factors 862 Parts List 63 Service and Repair 67 Addendum 1 PID Sensor 69 September 2009 Getting Started CAUTION CAUTION BEFORE THE INSTRUMENT IS PUT INTO SERVICE IT MUST BE CALIBRATED WITH APPROPRIATE CALIBRATION GASES 1 1 Unpacking All Scout Instruments are packaged individually with Sensors and appropriate Battery Pack installed Accessories are packaged separately Carefully open each box and remove the items Identify all items as shown in Figure 2 and reference your Order and Packing List for completeness Examine for external damage If any is found or if any item is missing notify Scott Health amp Safety Customer Service immediately at P N 087 0019 Rev C 4320 Goldmine Road Monroe NC 28110 USA Phone 1 800 634 4046 8 30 AM to 5 PM EST Email inf
21. Parameters Display Contrast 30 Delete events log Show Live w Peaks 5th Gas Parameters Hide Live STEL TWA Hide Leak Bars REMOTE MORE A a SAMPLING PARAMETERS Al Setpoint TECHNICAL Internal Pump Yes TWA Period Power on Real Re gt t DISPLAYS Remote Gas Alarms Yes Cal Period 0 Days Show Gas Readings Remote STEL TWA Yes Mini Span Reserve 20 ause Hide Zoom into Alarm Set Flow flow meter Date Format Show Zero and Cal Liquid Sense Low Temp Unit SAUERATION Show Zero and Cal MENU Hold Peaks sz Zero Calibration Show Live w Peaks E RAVE BE Span Calibration Hide Live STEL TWA Hi PARAMETERS Calibration History Hide Leak Bars Hi Warning 23 5 Lo Alarm 19 5 TEE NEU Add User Lo Warning 19 5 Edit User Sensor Enabled Delete User Zero Calibration LOCATIONS SKBAMETERS Add Location Alarm Level 25 i Delete Location Warning Level 25 STEL Alarm 35 DATE 8 TIME Cal Gas Conctr 50 oe Sensor Enabled H2S PARAMETERS Alarm Level 10 i Warning Level 10 M F D m STELAlarm 15 Alarm 15 e A U OW lag ra TWA Alarm 10 Cal Gas Conctr 25 Sensor Enabled COMB PARAMETERS Alarm Level 10 Warning Level 10 Cal Gas Conctr 32 Cal Gas Methane LEL Enabled Gas Disabled Cal Gas September 2009 12 Press the Lower right arrow button to record the new Cal Gas nn ppm setting The highlight of Cal Gas nn ppm will reappear PIN 087 0019 Rev C 46 6 3 Scout Menu Item Descriptions MASTER MENU Setu
22. RM levels set to the same value Operators should always verify the WARN and ALARM setpoints before operating the instrument Factory Default Alarm Set points for typical sensors shown are Oxygen Low Alarm 19 5 Oxygen High Alarm 23 5 Hydrogen Sulfide Alarm 10 ppm Carbon Monoxide Alarm 35 ppm Combustible Gas Alarm 10 LEL 3 2 Low Battery A low battery condition will be indicated when less than 5 of full charge remains After acknowledgment by the operator the instrument will 11 September 2009 continue to audibly remind the operator with a group 20 a Li 02 of three short beeps every few seconds Battery will be exhausted in about 1 hour 3 4 Negative Gas Readings Some sensors respond to gases other than those they are designed to measure interferents 3 3 Over Range Conditions Interfering gases can potentially cause a negative The Scout indicates an over range gas concentration reading or zero drift Any significant negative by flashing If the instrument is equipped with reading will produce ANO indication a dual range combustible sensor parti 096 2549 which causes the display to blink slowly after and the instrument is in sample draw mode shutter acknowledgement If a negative reading occurs In closed when an over range LEL concentration clean air the instrument should be zeroed is detected the Scout will show the then automatically range from LEL to Gas See Se
23. active cancel the adjustment and revert 1 If the highlighted item is another menu switch to it 2 Activate an adjustable highlighted item Highlighting disappears while the item is adjustable by Upper Left and Lower Left 3 Enter the adjusted value for the activated item 4 Some menu items are set by choosing from a sequence of values Pressing Lower Right immediately applies the next available selection for the highlighted item Choose the next available display screen Lower Right Right Arrow or Enter Revert to the menu where the display was activated or enter gas measurement 42 SCOUT DISPLAY Upper Left Upper Right Lower Left Lower Right SCOUT FUNCTION BUTTONS 6 1 Scout Login Advanced menu operated features of the Scout are accessible only to Technical and Setup users Review Section 4 1 for a description of the three levels of access to Scout At power on the previous user of the Scout is automatically logged in By default that user is General To log in as a different user press and hold the Lower Left and Upper Right buttons together The following screen should appear Li LOGIN amp INFO X Calibrate in O days Battery 61 02 Mar 09 15 10 68 F User General Location Any E Next m Press the upper left button two times to move the high lighted cursor to the User General line Press the lower right button Next The followi
24. aks are found Remove your finger from the end of the probe and the aspirator bulb will inflate m Check the probe prior to use Unscrew the top section of the probe and examine the filter for any contamination if found change out the filter Also make sure that moisture has not been trapped in the probe if so completely drain and dry it out before use o Begin sampling The probe should be held ina vertical position if a liguid could be encountered P N 087 0019 Rev C CAUTION CAUTION Gas concentration displays are only meaningful as long as the aspirator bulb is repeatedly squeezed Recommend PEAK Display mode be used when using a hand aspirator as readings will oscillate as bulb repeatedly inflates deflates 4 5 6 Low Flow Alarm If the instrument is equipped with an integral pump a Low Flow alarm may occur if the probe or sample line becomes plugged for any reason The following display and alarms will be activated Check line for kinks water or other obstructions If a gas alarm is active when the low flow condition occurs the lower left corner of the Main Display will show Low Flow as an added alarm Low Flow Alarm Pump shut off by blockage Filter OK CLEAR BLOCKAGE Restart Pump mm 31 September 2009 4 6 STEL TWA 4 6 1 What are STEL and TWA Values Standards have been developed by various agencies to protect workers from overexposure to hazardous atmospheres Gas conc
25. ckel Plating 7 1 2 x 2 5 8 x 4 19 cm x 6 6 cm x 10 cm 24 oz 7 Kg Alkaline version with batteries Three 3 C cell Battery Pack or LI lon Battery Pack 40 F to 122 F 40 C to 50 C Note LCD will darken below 0 F See sensor operating temperature limits 90 hours typical w o pump at 72 F 24 hours typical with continuous pump operation at 72 F Pump Flow Rate Max Hose Length Max Draw Vacuum Alarm Flow Rate 500 ml min 100 ft with 3 16 I D tubing 12 Water Column 400 ml min Hydrogen Sulfide Sensor Specifications Range Response Time Operating Temp Humidity Storage Temp O to 100 ppm T90 lt 30 sec 4 0 F to 122 F 20 C to 50 C 15 to 90 RH Non Condensing 32 F to 68 F 0 to 20 C Sensor Cross Sensitivity Carbon Monoxide at 300 ppm lt 2 ppm Sulfur Dioxide 5 ppm approx 1 ppm Nitric Oxide 35 ppm lt 1 ppm Hydrogen 10 000 ppm lt 10 ppm Nitrogen Dioxide 5 ppm approx 1 ppm 58 September 2009 Carbon Monoxide Sensor Specifications Oxygen Sensor Specifications Range 0 to 500 ppm Range 0 0 to 25 0 Response Time 190 lt 25 seconds Response Time 195 15 seconds Operating Temp 4 to 122 F 20 to 450 C Operating Temp 4 to 6122 F Humidity 15 to 90 RH Non 20 to 50 C condensing Humidity 0 to 99 RH Non condensing Storage Temp 32 to 68 F Storage Temp 32 to 68 F O
26. cted gases For example if either methane or propane may be present and the desired alarm is 25 LEL calibrate the instrument with methane and set the alarm level at 25 x 0 65 16 LEL For best accuracy use the same calibration gas as will be detected in use Using the COMB PARAMETERS menu select the appropriate calibration gas name and set the corresponding concentration Known Gas Present K factor n Butane 0 6 Methanol 1 04 Ethane 0 8 Hydrogen 1 1 Methane 1 Propane 0 65 n Pentane 0 5 n Hexane 0 45 n Octane 0 4 Ethanol 0 8 Isopropanol 0 69 Acetone 0 7 Ammonia 1 3 Toluene 0 35 Gasoline 0 6 Isobutanol 0 53 Xylene 0 49 Styrene 0 46 62 September 2009 Parts List Batteries Backups Chargers amp Power Supplies 096 2540 096 2560 096 2581 096 2582 Li lon Battery Pack No Charger Alkaline Battery Pack 90 264V AC IRiS Charger Kit includes IriS charger and plug in cable 12V DC IriS Car Charger Kit includes IriS charger and plug in cable Calibration Accessories 068 0015 077 0021 077 0272 077 0273 077 0276 077 0277 077 0278 077 0279 077 0280 077 0346 FEP Lined Flexible Clear Tubing 3 16 ID Clear Flexible Tygon Tubing Hydrogen Sulfide 25ppm gas cylinder 2AL 34L Carbon Monoxide 50ppm gas cylinder 7HP 34L Sulfur Dioxide 10ppm gas cylinder 2AL 34 L Ammonia 25ppm gas cylinder 2AL 34L Hydrogen Cyanide 10ppm gas
27. ction 4 8 for additional information on dual range 3 5 Remote Sampling Mode combustible sensors Acknowiedge mu The following flashing display indicates an Over Leak Test Range combustibles condition The pulsating audible Whenever the remote sampling mode of operation alarm is energized as well as the flashing LED is started the instrument will start the internal pump and prompt the user to perform a leak test by blocking the probe inlet When the leak testis P N 087 0019 Rev C 12 a BE f al OESE See OA A A E M m nm me PA NANA eptem ber 2009 successful the instrument will prompt the user to unblock the probe Removing the blockage will change the display to show measurements of remotely sampled gas If a gas alarms during this leak test the test will terminate Cycle the shutter to initiate a test of the inlet tubing Leak Test BLOCK PROBE INLET Leak Test Passed UNBLOCK PROBE 3 6 Low Flow Alarm Blockages caused by kinked tubing water saturated filters or pump failure can cause a LOW FLOW ma A ELE nn mu Mm Mm A M ER sg JIN I A AOF ANNAD gt mus ga FING ZE 15 mi JU by E DAN i FAN Ti WVO I V wy IAW V VI Scout Portable Gas Monito condition and prevent a gas from reaching the sensor so that accurate detection can take place Scouts equipped with an integral pump automatically detect LOW FLOW conditions sound and flash an alarm and display the following
28. d These Battery Packs can hold their electrical potential for long periods of time however the following is recommended before the Instrument is put into operation With the Scout s display facing away from you remove the battery pack from the instrument by pushing the battery release to the right while sliding out the battery pack Turn the battery pack upside down and identify the latch on the front center of the cover plate CAUTION Push the latch in towards the back of Battery Pack while grasping the exposed corners of the cover The Battery Pack should not be removed from the plate Raise and remove the cover plate to expose instrument for more than 30 minutes the three C Cell Batteries PIN 087 0019 Rev C 7 September 2009 Leaving the batteries in place rotate each battery in turn to locate the expiration date of each cell If the 2 2 Lithium lon Battery Pack date listed indicates at least one year until expiration The Lithium lon Battery Pack is shipped with a then replace the cover plate which will snap into partial charge that will operate the instrument for a place sealing the Battery Pack Replace the pack few hours It requires a minimum of four 4 hours The instrument is now ready to Turn On charging time for full operating time 2 3 Inductive Battery Charger CAUTION The Scout uses an Inductive Charging System that I USE ONLY APPROVED BATTERIES requires no connections between the inst
29. de gas cylinder regulator amp tubing 64 September 2009 Misc Parts amp Accessories 074 0366 077 0311 096 2515 096 2583 062 0007 062 0008 076 0104 076 0105 077 0308 077 0309 077 0314 077 0315 077 0316 077 0318 077 0322 077 0323 087 0019 093 0315 093 0316 096 2510 096 2513 096 2516 Scout Case Bottom Molded Cary Case Scout Case Top includes LCD lens rubber buttons amp visual alarm light pipes Pelican Case Scout Quick Reference Card Scout Programmer s Guide Torxs Screws Screws Retains sensor cover Rubber Scout protective boot Scout Leather Holster Pump Bypass for instruments without pumps Scout IR Transceiver Data cable connects IRIS charger to PC Scout Acoustic Earphone Filters Internal Barb fitting on internal filter Scout Manual 8 Relay DIO Card I R i S Cradle to DIO Board Control Cable I R i S pump w quick connect Datalogging PC Board rubber sensor manifold filter assy P N 087 0019 Rev C 096 2517 096 2536 096 2566 096 2584 096 2860 096 2861 096 2873 096 2874 099 0010 Probes 0051 2516 077 0298 077 0317 093 0148 093 0241 093 0241 096 2551 096 2552 096 2553 096 2862 1 096 2862 2 Sensor cover shutter assembly Lens assembly includes upper portion of case Computer System I R i S Hand Aspirator with 10 ft clear flexible Tygon tubing Dilution Valve Assembly R i S Complete System Multi Cradle Docking 8 Cal System
30. dvanced Users Section of this guide for additional information 17 September 2009 4 2 Instrument Turn ON Turn OFF At power on the instrument maintains the user that was active at shut down However if the instrument was shut down with Setup User access it reverts to General User to prevent accidental changes to the instrument configuration 4 2 1 Turning On the Instrument To turn the Instrument On press and hold any of the four Function Buttons The instrument will sound multiple beeps while the two 2 Alarm LED s alternately flash The first screen will display Scout f Scout W 1 2 1 SH XAXXX intakang aiiis co Calibrate in O days Usar General User General Cabbrate m U days Version V indicates the revision level of the software operating in the instrument Serial Number should match the number printed on the bottom label It identifies the instrument in data logs and for Scott Instruments Customer Service P N 087 0019 Rev C Initializing After a few seconds the Initializing screen replaces the Version SN screen The Initializing screen stays in place while the sensors stabilize Separating the instrument from its battery pack for more than a half hour storing the instrument at a very low temperature installing a new sensor or rarely a sensor failure may result in the initializing screen persisting more than a few seconds The display shows which sensor is causing the delay After
31. ealthsafety com Printed inthe USA
32. ee must P N 087 0019 Rev C 33 September 2009 be enabled in the CO parameters configuration in Setup and the following three conditions Must occur e Shutter closed for remote sampling e Oxygen below 16 0 e Carbon Monoxide above 5ppm Air Free measurement of Carbon Monoxide calculates the displayed CO reading by taking into account the amount of excess air and adjusting the as measured ppm value of CO By measuring in the Air Free CO Mode users can check carbon monoxide emissions from gas ovens range top burners and similar devices to check for compliance to US National Standard ANSI Z21 1 The formula used to calculate and display an Air Free CO value is COAFppm 20 9 20 9 02 x CO ppm The following example illustrates the above formula Oxygen level has fallen from 20 9 to 15 Carbon Monoxide has increased from 0 to 10ppm P N 087 0019 Rev C COAFppm 20 9 20 9 15 x 10 20 9 5 9 x 10 3 5 x 10 35 ppm air free 4 8 Dual Range Combustibles sensor If properly equipped the Scout can automatically range from LEL to Gas when detecting combustible gases The dual range feature is only available e with instruments equipped with the dual range combustible gas sensor part 096 2549 an oxygen sensor and an integral pump e when Gas is enabled in the combustible sensor parameters configuration in Setup e when the instrument is in Sample Draw mode shutter closed
33. entration is averaged over an exposure time to assure a safe environment for workers The terms used for the standards that have been set by these agencies are STEL Short Term Exposure Limit and TWA Time Weighted Average Users logged in with Technical User access can view instrument STEL TWA alarm values and reset STEL TWA accumulations via the Master Menu refer to the Scout Advanced Users Section of this guide 4 6 2 Displaying STEL and TWA Alarms By default STEL TWA calculations start when the instrument is turned on and stop at instrument turn off The Scout will alert the user when a STEL or TWA alarm level has been reached P N 087 0019 Rev C ALARM CO STEL 215 ppm If an alarm condition should be encountered the alarm display screen is activated in a flashing mode showing which gas is in alarm and the accumulated average gas concentration Alarm LED s and Audible Alarm will also be energized See the Setup and Programming section for additional STEL and TWA programming and features 4 6 3 About STEL Alarms A short term exposure limit or STEL is the maximum concentration for a continuous exposure time of 15 minutes Each such exposure should be followed by a 60 minute interval without exposure There should not be more than four 4 STEL exposures in an eight 8 hour shift 32 September 2009 CAUTION CAN EION TWA Calculation Example When a STEL alarm is activated the area should
34. enu selection For example to change CO calibration gas concentration 1 Log in as setup user 2 Press the Lower Right Next button to see the MAS TER MENU 3 Press and hold the Upper Left up arrow button to select Setup 4 Press the Lower Right Next button to see the SETUP MENU 5 The Parameters selection is highlighted 6 Press the Lower Right Enter button to see the PA RAMETERS MENU 7 Press the Lower Left down arrow button as needed to select CO Parameters 8 Press the Lower Right Enter button to see the CO PARAMETERS menu 9 Press the Lower Left down arrow button as needed to select Cal Gas nn ppm 10 Press the Lower Right right arrow button to activate the Cal Gas adjustment The highlight of Cal Gas nn ppm will disappear 11 Press or press and hold the Upper Left and Lower Left up and down arrows buttons until the desired cali bration gas concentration appears in the display 44 Scout Portable G Multi Gas Personal Monitor MASTER MENU MENU l Setpoint VENU am sepone ALARM PARAMETERS STEL TWA DISPLAY SCREEN Technical Displays GENERAL a o PARAMETERS Calibration DISPLAYS Remote Sampling Prm Non Latching Alarms Show Gas Reading O2 Parameters Alarm Quiet 15 sec Show Gas Reading EL Date amp Time Hide Zoom into Alarm CO Parameters Confidence Chirp Off Display Events Show Zero and Cal H2S Parameters Backlight Seconds 30 Download Events Hold Peaks COMB
35. eptember 2009 interpreted as meaning a particular sensor will last beyond the warranty period The Oxygen reserve is based on the automatic span calibration of the oxygen sensor to 20 9 Oxygen during the Zero procedure see Section 4 3 1 Reserve information is viewable only during the day the instrument calibration has been performed Since the reserve information is valid only immediately after calibration the data is available only on that day Press the lower right Function Button Done to complete the Calibration procedure This will return to the Main Display screen and show gas readings If residual cal gas above an alarm set point is present the instrument will alarm P N 087 0019 Rev C 4 5 Remote Sampling The Scout provides the capability of monitoring remote atmospheres This is accomplished by drawing a sample from the remote atmosphere by means of a sample line probe 3 16 ID sample line tubing and either a Sample Pump which is mounted internally in the Instrument or an external Hand Aspirator Assembly Most Instruments are shipped with the internal pump installed however the instrument is available without the pump In this case the hand aspirator would be used for remote sampling if required Note An optional Sample Pump Kit is available to upgrade the Scout to an automatic remote sampling instrument 27 September 2009 4 5 1 The Sample Probe The bo probe provides the interface between
36. g section if necessary The sensor may need replacement P N 087 0019 Rev C Acknowledge the Sensor Warning condition by pushing the Lower Right function button This stops the audible and LED alarms Push Lower Right button again if needed to show the Main Display screen as shown 4 2 2 Turning OFF the Instrument To turn the Instrument Off depress the lower left and lower right Function Buttons simultaneously and hold for approximately 3 seconds The following screen will then appear Press the upper left Function Button to complete the turn off sequence Off Escape Shut off Scout Press the upper left button to power off Press the upper right Function Button Escape to revert back to the previous display If the upper left OFF or the upper right Escape function buttons are not pressed the screen will automatically return to the previous display after about 30 seconds 19 September 2009 4 3 Functional Test The functional test helps ensure the Scout is prepared to safely assist in detecting the gases it is equipped to detect The following procedure uses a Scout equipped with four gases hydrogen sulfide oxygen carbon monoxide and combustibles as the example The functional test also confirms alarm activation when the set point for a gas is reached 4 3 1 Zero Calibration and Oxygen Span Calibration Zero Calibration is performed from the following Display screen Cal Escape
37. ill start automatically The sample draw inlet is now exposed to permit connecting the tubing probe to the instrument 29 September 2009 2 Connect the sample tubing and probe and hand aspirator if instrument is not equipped with an integral pump Switching between diffusion and sample draw modes PIN 087 0019 Rev C Attaching sample tubing to sample inlet port 3 When the Scout is placed into Sample Draw mode by sliding the IntelliShutter forward the instrument prompts the user either to perform a LEAK TEST or to use an external pump The leak test must be performed with sampling equipment attached to the instrument inlet port so as to insure that the sampling equipment is free from leaks that may dilute a sample and cause incorrect unsafe gas readings Scout with Pump To conduct the Leak Test place your finger over the end of the probe to test for leaks If no leaks are found the following 30 September 2009 will display The display UNBLOCK PROBE will be flashing If a leak is found the above display will not change until the leak is corrected and a successful leak test is performed Leak Test Leak Test Passed BLOCK PROBE INLET UNBLOCK PROBE Scout with Hand Aspirator To test for leaks squeeze the Aspirator bulb until fully deflated and hold deflated then place your finger over the end of the Probe and release the bulb The bulb will remain deflated if no le
38. interferences to which gas sensors may be exposed however not all chemical compounds which presently exist have been tested and therefore the table does not show nor should it be implied that no additional interferences may occur These selectivity ratios are to be used as guides only They are not to be used as calibration factors The gas species actual cross sensitivities may vary from the values shown Refer to the Operation and Maintenance Manual for calibration instructions lt less than approximately P N 087 0019 Rev C 61 Appendix 3 Scout Combustible K Factors The table lists K factors referenced to methane calibra tion The factors are the typical ratios of the response to the listed gases relative to the response to methane The values are typical but will vary from sensor to sensor and over the lifetime of a given sensor When a gas other than the calibration gas is detected divide the reading by the corresponding factor to estimate the actual gas concentration For example propane may be detected by a Scout cali brated with methane If the reading is 32 LEL 32 LEL Methane indicated 0 65 49 LEL of pro pane estimated Generally if there is a potential for methane in the operating environment the instrument should be cali brated with methane If there also is a potential for other gases in the operating environment the LEL alarm level should be adjusted according to the lowest K factor of the expe
39. it mw Gas Concen Status CO 50 ppm 41 H2S 25 ppm 15 COMB 50 LEL 40 The displayed values indicate any loss of sensitivity for each sensor since the previous calibration These values should be noted as they indicate the accuracy of recent measurements before calibration Large losses in sensitivity indicate that the frequency of calibration needs to be increased P N 087 0019 Rev C After calibration is complete several seconds to a few minutes depending on sensors the screen will change to the following display REMOVE GAS Exit mu Gas Concen Status CO 50 ppm Weak H2S 25 ppm Passed COMB 50 LEL Failed The Remove Gas display will indicate the status of the sensor as shown above At this point in the calibration procedure the sensitivity of each sensor has automatically been matched to the calibration gas concentration applied Specific error messages as shown below will be displayed if a sensor s does not pass the Calibration procedure If a sensor fails calibration do not use the instrument 25 September 2009 Follow the remaining steps to complete the calibration procedure then reference the Maintenance and Troubleshooting Sections of this Manual The most common reason for calibration failure is a mismatch between the calibration gas configuration shown in the calibration screens and the gas actually applied Make sure the gas source matches the co
40. lator 7HP Demand Flow Regulator 7HP 5 regulator w gauge 7HP 5 bullet 2AL 8AL 6D 5 bullet LEL CO H2S 02 2AL 34L Calibration Kit w 5 LPM Regulator No Knob LEL CO H2S 02 8AL 58L Calibration Kit w 5 LPM Regulator No Knob LEL CO O2 7HP 34L Calibration Kit w 5 LPM Bullet Regulator No Knob or Gauge LEL CO O2 6D 103L Calibration Kit w 5 LPM Regulator No Knob LEL H2S O2 2AL 34L Calibration Kit w 5 LPM Regulator No Knob LEL H2S 02 8AL 58L Calibration Kit w 5 LPM Regulator No Knob LEL CO H2S 02 2AL 34L Calibration Kit w o LPM Regulator LEL O2 CO H2S 8AL 58L Calibration Kit w o LPM Regulator LEL O2 CO 7HP 34L Calibration Kit w o LPM Regulator P N 087 0019 Rev C 096 2506 19 096 2506 20 096 2506 21 096 2506 22 096 2506 23 096 2506 24 096 2506 25 096 2506 26 096 2506 27 LEL CO O2 6D 103L Calibration Kit w o LPM Regulator LEL H2S O02 2AL 34L Calibration Kit w o LPM Regulator LEL O2 H2S 8AL 58L Calibration Kit w o LPM Regulator LEL O2 CO H2S 2AL 34L Calibration Kit w Demand Flow Regulator LEL CO H2S O02 8AL 58L Calibration Kit w Demand Flow Regulator LEL CO O2 7HP 34L Calibration Kit w Demand Flow Regulator LEL CO O2 6D 103L Calibration Kit w Demand Flow Regulator LEL H2S O02 2AL 34L Calibration Kit w Demand Flow Regulator LEL O2 H2S 8AL 58L Calibration Kit w Demand Flow Regulator Note All Calibration Kits inclu
41. n is outside the 10 limit calibration should be performed IF CONDITIONS DO NOT PERMIT DAILY TESTING TO VERIFY CALIBRATION LESS FREQUENT VERIFICATION MAY BE APPROPRIATE IF THE FOLLOWING CRITERIAARE MET a During a period of initial use of at least 10 days in the intended atmosphere calibration is verified daily to be sure there is nothing in the atmosphere which is poisoning the sensor s The period of initial use must be of sufficient duration to ensure that the sensors are exposed P N 087 0019 Rev C to all conditions which may have an adverse effect on the sensors b Ifthe test demonstrates that it is not necessary to make adjustments then the time interval between checks may be lengthened but should not exceed thirty days c The history of the instrument since last verification can be determined by assigning one instrument to one worker or by establishing a user tracking system such as an equipment use log USE IT CORRECTLY Do not use the Scout to detect mixtures other than combustible gases or vapors or toxic gases in air or inert atmospheres September 2009 AVOID POISONING COMBUSTIBLE SENSORS Operation of catalytic type combustible gas sensors may be seriously affected by silicones free halogens halogenated hydrocarbons and metallic oxides present in the ambient air being monitored If the presence of any of these substances is suspected increased frequency of calibration verification is recommended
42. ncentration display 28 September 2009 4 5 3 Sample Draw Hand Aspirator The Hand Aspirator consists of a rubber squeeze bulb a 12 length of neoprene hose and 10 feet of sample line tubing To pull a sample the squeeze bulb must be deflated then allowed to inflate thus pulling a sample into the sample line For the standard accessory squeeze bulb each squeeze and release can fill about a foot of tubing FE nT Ste The aspirator would only be used if the Scout is purchased without a Sample Pump or in the event of a pump failure see the Troubleshooting Section The aspirator is connected to the sample draw port IMPORTANT An instrument must be equipped either with an integral sample pump or with a pump by pass tube part 077 0314 P N 087 0019 Rev C 4 5 4 Integral Sample Pump The Scout can be equipped with an internal plug in pump that will pull an atmospheric sample from up to 100 ft away The sample flow rate is set for 0 5 liters minute The Scout monitors the sample flow rate and provides an alarm if the flow rate can not be sustained by the pump A replaceable internal filter is provided at the pump inlet for additional moisture and particulate protection 4 5 5 Remote Sampling Procedure 1 To enter sample draw mode close the IntelliShutter by simultaneously pressing the shutter slide buttons and pushing forward If the instrument is equipped with an integral pump the pump w
43. nfiguration that it has not expired and that the connections are correct Weak Denotes that the sensor Calibrated but should be considered for replacement The sensor may not pass the next calibration The Weak sensor threshold is determined by the programmable Minimum Span Reserve value selected Not Zeroed Denotes that the Zero Calibration procedure was not completed successfully for the specific sensor Failed The sensor should be replaced Even though it may show the correct reading it is likely to lose its remaining sensitivity rapidly and unpredictably See the Maintenance and Troubleshooting Sections P N 087 0019 Rev C 8 9 10 NoMix Denotes that this sensor must be calibrated with a single gas cylinder a mixture cannot be used Turn the gas flow off and remove the Tygon tubing from the inlet port Open the Intellishutter The pump will automatically shut off for instruments so equipped Press the upper right Function Button Exit to move to the next screen GAS PREVIOUS CAL Reserve CO 0 days 98 H2S 0 days 102 COMB 0 days 129 The above screen indicates the remaining sensor life determined by comparing the output of the sensor to the minimum value in the smart sensor program software A sensor with reserve less than 20 factory default will be reported as Marginal An indication of greater than 100 is not unusual with a new sensor and is not to be 26 S
44. ng screen will be displayed Press the lower left button two times and press the lower right button labeled Enter 43 Press the Lower Left and Upper Left up and down ar row buttons as needed to select the desired user Then press Lower Right Enter To change from General to Setup press Lower Left twice and Lower Right once The password screen will appear The Upper Left and Lower Left buttons scroll through the alphabet numer als and some special characters The password is case sensitive Upper case letters appear while scrolling up through the alphabet lower case while scrolling down Press the Lower Right button to enter each character of the password Press it again after entering the final letter The factory default password is A To enter it press the Upper Left button once then the Lower Right button twice Assuming you selected the Setup user the LOGIN amp INFO screen will show User Setup This gives you access to all menus including Setup Following the Menu Flow Diagram in Section 6 2 you can make any changes you need in Scout Settings If you power off Scout without logging in a different user the General user will be logged in by default at power on Scout Pc orte ab le vas IVIONITOI 6 2 Scout Menu Flow Diagram To use the menus log in to Scout as described in Sec tion 6 1 The diagram see next page shows the path to reach each m
45. o scotthealthsafety com 1 2 Storage If the Instrument is to be put into storage and not put into service immediately the Batteries or Battery Pack should not be removed from the Instrument 1 3 Operational Environment The Scout is approved to be Intrinsically Safe suitable for operation in Class 1 Division 1 Groups A B C and D hazardous locations 1 4 Registration Register your Scout visit the Scott Instruments web site at www scotthealthsafety com or fill out and mail the enclosed card Registration will enable Scott health amp Saftey to notify you of future software enhancements and or upgrades that may become available September 2009 Scout Portable Gas Monitor Figure 1 Scout Operator Interface Alarm Alarm LED 1 LED 2 Upper Left Upper Right Scroll Up Escape Previous Lower Left 4425 Lower Right Scroll Down jf Next Enter Battery Charge Level Sensor Positions PIN 087 0019 Rev C 4 September 2009 Figure 2 Scout Features Lock and Latch i Battery Release IntelliShutter Port OPEN position ME a Ya Probe and iA Aian T a Tubing LED 2 IntelliShutter must be closed Audible Alarm P N 087 0019 Rev C 5 September 2009 NOTES PIN 087 0019 Rev C 6 September 2009 Powering the Scout 2 1 Alkaline Battery Pack Each Alkaline Battery Pack is shipped with a new complement of three 3 C Cells installe
46. p To configuration menus Alarm Setpoints View summary of alarm settings Event Log To event menu STEL TWA To STEL TWA Menu Calibration To Calibration Menu SETUP MENU master Menu Parameters General Displays Technical Displays Users Locations Date amp Time Select menus to adjust instrument and sensors Show or hide available displays for General users Show or hide available displays for Technical users Add to or edit list of users available to log in Add to or edit list of locations available to record in log Set calendar amp clock for data log amp calibration schedule EVENT LOG MENU master Menu Heading shows how many events were captured and the earliest and latest dates of the events Display events Download events Delete event log View a scrollable list of events abbreviated descriptions Display PC information Access to clear events from memory 47 STEL amp TWA master Menu Alarm Setpoints Reset and Restart Pause or Resume Heading shows when accumulation of reading began Show all toxic gas alarm levels including STEL TWA Clears accumulation and restarts from present time Pause to exclude current conditions from accumulations Zero Calibration Span Calibration Calibration Histry CALIBRATION MENU master Menu Initiate sensor zero process Initiate sensor span process Displa
47. placement and shutter cleaning instructions 5 1 1 Sensor Replacement Procedure 1 Turn instrument power off Removing the battery pack is unnecessary and detrimental 37 September 2009 2 Turn over the Scout s housing and remove the 4 four Phillips Head Screws With the screws removed take off the Scout s shutter assembly 3 Lift the rubber sensor gasket assembly away from the sensor chamber Inspect the sensor filter material located on top of the rubber sensor gasket replace the sensor gasket assembly if dirty or deformed P N 087 0019 Rev C 9 2 Pump Installation Note Do not attempt pump installation without access to pump calibration kit To install a Scout pump begin by following Steps 1 through 3 of Section 5 1 1 then proceed as follows 1 Un plug the sensor two wire connection x Fr 1 5 38 September 2009 2 Carefully remove the pump from the rubber sensor gasket 3 Carefully install the new pump following the preceding steps in reverse order 4 Calibrate the pump flow rate using the Remote Sampling Parameters setup menu as described in the Scout Advanced Users Section 6 3 of this guide x 10 9 3 Pump By Pass 1 Scouts without pumps are supplied with bypass tubes in place P N 087 0019 Rev C 2 Ifa pump were to fail an external pump would operate through the failed pump Futher if a pump fails it s a little more difficult
48. rculating its own exhaust 5 8 Exit the CALIBRATE COMB GAS display and all levels of menus Go back to MASTER MENU Press the Next button to display gas measurements 5 9 Verify sensor recovery 5 9 1 After several seconds the gas measure ment display will indicate 0 Gas 5 9 2 The 0 Gas display will persist for sev eral more seconds before the instrument switches to LEL mode 5 9 3 After the mode switches the display will indicate a residual LEL response 5 9 4 lf you open the shutter before this point the display will indicate LEL Within two minutes the LEL display should fall to or near zero 54 6 5 Scout Troubleshooting SYMPTON Sensor Marginal Order a replacement sensor as long as calibration states weak it is still calibrated After the sensor calibration report fail it should be replaced or disabled to prevent constant warnings Unable to zero sensors When the Scout is turned on you have one minute to zero sensors You can press the upper right button to bypass the sensor initialization to take advantage of the one minute zero You can also go into the advanced menus anytime and zero a sensor If zero continues to fail replace the sensor Calibration failure Check calibration gas expiration date Toxics such as Hydrogen Sulfide and Sulfur Dioxide cylinders will have pressure but concentrations diminish after the expiration date Check the filters in the Sco
49. rs Sensor Failure Sensor current is monitored to determine UV bulb failure A sensor failure alarm indicates the lamp has failed or will fail soon Order a replacement bulb Cold Weather Considerations The PID should not be used at less than 32 F 73 September 2009 VOC Zero Drift The PID is an extremely sensitive sensor Sample system contamination bulb contamination fresh air contamination and detector element contamination can all contribute to drifting and false readings In addition the sensor requires some warm up time to operate to specifications Always suspect the sample system as the first contributor to drift Sample system contamination can be easily determined by removing the sample system open the intellishutter and determine if drift goes away with the sample system Close the shutter and do not install the sample tubing and probe If readings decrease when the sample tubing and probe are removed the parts must be cleaned or replaced and then retest Next suspect the purity of the air supply during calibration Attempt to perform a zero in a new location to see if drift can be eliminated If the instrument PID sensor is still experiencing drift the PID bulb and detector may require cleaning Menu Changes P N 087 0019 Rev C Remove Sampling Menu Leak Test All or once All is the default This setting determines if the leak test is performed each time the shutter is closed or the first
50. rument and If battery replacement is required only the charger The inductive charger will charge the lithium following approved batteries must be used Using ion battery pack while connected to the Instrument batteries other than the approved Batteries will or separated from the instrument This feature allows violate the Intrinsic Safety Approvals the user to keep a spare battery pack continually charged and ready for use Duracell MN1400 SCOUT INSTRUMENT Energizer EN93 E93 or X93 CHARGER STAND Panasonic AM 2PI doy POWER SIPPY Rayovac 814 TO 100 240VAC POWER SOURCE Replace all three 3 batteries with new identical alkaline cells of one of the types listed observing the correct polarity stamped on the battery holder Never mix old batteries with new ones Replace the cover on the pack and the pack on the instrument It is now ready for Turn On See Section 4 2 P N 087 0019 Rev C 8 September 2009 Rules of O It is critical that this or any gas detecto peration used and maintained properly Failure to do so could CAUTION jeopardize the people whose lives depend on its operation PERFORM A DAILY FUNCTIONAL TEST Before each day s use Scott Health amp Safety recommends that sensors be tested using a known concentration of calibration gas The instrument should indicate a gas concentration within 10 of the actual gas listed on the calibration cylinder label When the gas indicatio
51. s Choose Disabled Enabled Choose Disabled Enabled Start to calibrate for 100 methane or natural gas 52 6 4 Gas by Volume Calibration SAFETY FIRST Make sure you have a well ventilat ed work area preferably an explosion proof exhaust hood Prepare the instrument 2 1 After at least five minutes with power on zero the sensors 2 2 Make sure that LEL calibration has been main tained Configure the sensor 3 1 Log in as a setup user 3 2 Navigate to MASTER MENU gt SETUP MENU gt PARAMETERS MENU gt COMB PARAMETERS gt Cal Gas then press the Enter button lower right 3 2 1 NOTE If the combustible sensor is not set up by the factory for Gas mode you can not select the enable or cali brate items If Gas Enabled is not already showing Gas Disabled must be changed to Gas Enabled Select Cal Gas The CALIBRATE COMB GAS display appears when the instrument is 3 2 2 3 2 3 4 ready to calibrate Prepare the calibration gas 4 1 The calibration gas should be 100 concentra tion of the target gas natural gas or methane For good accuracy use the same gas to cali brate as will be measured 4 2 Establish the gas flow rate by one of the follow ing methods 4 2 1 Use a demand flow regulator between the gas supply and the instrument With this regulator the instrument pump controls gas flow just as in the measurement ap plication 4 2 2 Use a
52. screen until proper corrective action is taken Low Flow Alarm Pump shut off by blockage Filter OK CLEAR BLOCKAGE Restat Pump m 13 September 2009 3 7 Shutter Error 3 9 Replace Sensor The following screen will be displayed along with an audible and flashing alarm when the Scout s IntelliShutter is not in the fully OPEN or fully CLOSED position SHUTTER ERROR SHUTTER ALARM Fully open or fully close shutter 3 8 Sensor Marginal The following screen may appear at power up or on completion of calibration or zero When a sensor nears the end of its useful life its response declines If the response is within 20 default limit which may be changed by setup of the minimum response acceptable for reliable calibration this screen appears On acknowledgement the instrument operates normally Sensor Marginal Verify cal gas and recalibrate to confirm Acknowledge gt P N 087 0019 Rev C The following screen may appear at power up or on completion of calibration or zero along with an audible and flashing alarm When a sensor reaches the end of its useful life its response declines If the response is below the minimum response acceptable for reliable calibration this screen appears The screen also appears if a sensor failure is detected The xxx will be replaced by the gas symbol for the affected sensor On acknowledgement the instrument operates normally except that the di
53. splay of the affected sensor reading alternates slowly between normal and complemented contrast inverse video Once per minute the Replace Sensor alarm repeats until corrective action is taken REPLACE xxx SENSOR Verify cal gas and recalibrate to confirm Acknowledge gt 14 September 2009 Q t additional features The Technical User sees the 4 1 Scouts Modes of Opera 7 i MASTER MENU and a different set of gas displays tion The default settings from the factory make five 5 Scout operates in any of three modes providing three levels of access to the features of the instrument 1 General User no password required 2 Technical User password required 3 Setup User password required General User The instruments are supplied from the factory in this default mode The default settings from the factory make only two 2 screens available to the General User 1 Main Display indicates live numeric display of all gas concentrations 2 CAL ZERO Display Other screens can be made available to the General User via Set Up Technical User Logging in as a Technical User under password protection gains access to P N 087 0019 Rev C screens available to the Technical User 1 Main display indicates live numeric display of all gas concentrations 2 CAL ZERO display 3 Hold Peaks display similar to the live numeric display but maintaining the maximum excursions of gas concen
54. sure that the hole in the Cap and Filter Assembly is aligned over the holes in the metallized Detector Element Figure 17 Using tweezers Figure 16 reinstall the metallized Detector Element by pushing it down in the area of the pins with a flat metal object e g the flat side of the tweezers Make sure that the Detector Element sits flush with the top surface of the sensor Figure 17 Figure 16 PIN 087 0019 Rev C 77 September 2009 NOTES PIN 087 0019 Rev C 78 September 2009 NOTES PIN 087 0019 Rev C 79 September 2009 INTRINSICALLY SAFE GAS LEVEL DETECTOR SS F C22 2 No 152 yi Q ANSI ISA 12 13 01 Exia C US 0086 39NO UL EEx ia IIC T3 or EEx ia d IIC T3 d denotes installation of II 2 G combustible sensor CERTIFIED BY UNDERWRITERS LABORATORIES INC ONLY AS TO INTRINSIC SAFETY FOR USE IN HAZARDOUS LOCATIONS CLASS I DIV 1 GROUPS A B C amp D EC TYPE EXAMINATION CERTIFICATE No KEMA 03ATEX1393 COMPLIANCE WITH THE ESSENTIAL HEALTH AND SAFETY REQUIREMENTS HAS BEEN ASSURED BY COM PLIANCE WITH EN50014 1997 EN50018 2000 amp EN 50020 2002 WARNING SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY USE ONLY WITH AP PROVED BATTERIES TEMPERATURE CODE T3 P N 087 0019 Rev C 80 SCOIT Health amp Safety Monroe Corporate Center PO Box 569 Monroe NC 28111 Telephone 1 800 247 7257 FAX 704 291 8330 www scotth
55. t port turn off the gas regulator and open the shutter The Main Display screen is now displayed and the gas readings will return to normal levels PIN 087 0019 Rev C 4 4 Instrument Calibration All sensors Oxygen Toxic or Combustible gas vapor become insensitive to the gases they monitor over a period of time Loss of sensitivity can be caused by normal degradation exposure to high gas concentrations or sensor poisoning To provide the user with a safe reliable and accurate monitoring and alarming instrument the sensors must be exposed to a calibration gas or gases of known concentration for the specific gases the Scout will monitor This procedure will determine the sensors or Instrument usability Calibration Gas concentrations must be selected to be within the monitoring range of the specific sensor for toxic and combustible gases The oxygen sensor zero may be calibrated using nitrogen if needed to verify oxygen exclusion CAUTION CAUTION CAUTION Instrument calibration must only be performed by competent individuals who have read this manual and understand the calibration procedure 23 September 2009 4 4 1 Zero Calibration and Oxygen Span Calibration Refer to Section 4 3 1 4 4 2 Gas Calibration Preparation Components Required Same as Gas Bump Test Refer to Section 4 3 2 Gas Calibration Procedure 1 3 Connect gas regulator and connect tubing to regulator and instrument
56. terpretation of PID Sensor Readings The PID is the ideal sensor when one know VOC is present A PID is not the ideal product to use when the gas you are monitoring for is unknown PID Sensor Operation Turn on the instrument If high accuracy at low readings is expected allow 20 minutes for PID sensor warmup Changing the intellishutter position may require the user to perform a zero Interpretation of Readings The display of the Scout will indicate the individual VOC that the Scout is using as the reference gas If the Scout is in an environment where several VOC s are present the sensor will sum all present VOC s and display a total VOC ppm The Scout cannot be used to determine what VOC is present The VOC must be known prior to using the PIN 087 0019 Rev C Scout The Scout cannot give a true reading when multiple VOC s are present Correction Factors High correction factors in the range means the sensor is relatively insensitive to these gases Be aware the high correction factors will cause a higher amount of zero drift Correction Factors also affect sensor range 2000 ppm is the Scouts quoted range for Isobutylene If a gas has a correction factor of 5 then the range would be 1000 If the correction factor were 2 the range would be 4000 ppm Use a high correction factor above X when alarm setpoints are below Y ppm should be avoided The potential for false alarms do increase with increasing correction facto
57. the initialization period the instrument commences normal operation to monitor gases A count down in the lower right corner shows the maximum seconds remaining for initialization If one or more sensors don t fully stabilize during this time the gas reading may be invalid until the sensor fully recovers from extended separation from the battery pack or until the sensor is recalibrated for zero and span Sensor Warnings If sensor diagnostics indicate a problem one of the screens described in sections 3 7 and 3 8 will appear after initializing Calibrate in X Days Indicates when the calibration should be performed as determined by the user New instruments and new sensors should have an initial calibration by the user before use regardless 18 September 2009 of this display See Scout Advanced Users Section for additional information on setting the calibration reminder display interval User Indicates what user is logged onto the instrument See Scout Advanced Users Section for additional information ppm ww 02 H2S 0 ppm 0 LEL CO Meth Em Normal Mode Screen Four gas Instrument shown CAUTION CAUTION If any sensor doesn t fully stabilize during power up initialization or if a displayed message indicates a sensor problem such as shown above do not use the instrument until the specific sensor problem has been corrected Recalibrate allow additional settling time or see the troubleshootin
58. time the shutter is closed after power is turned on PID Sensor Characteristics Target Gases VOC s 8 other gases with ionization potentials lt 10 6eV Lamp Energy 10 6eV Tso Response Time lt 20 seconds diffusion mode Onboard Filter To remove liquids particles Temperature Range 0 C to 40 C 32 F to 104 F Relative Humidity Range 0 to 90 non condensing 74 September 2009 Cleaning and or replacing the PID Element amp Lamp Tools amp Replacement parts are available from Scott Instruments if needed for the following PID operations Replacement PID Sensor Assembly 096 2960 PID Sensor Tool Lamp Cleaning Kit 096 3062 Replacement Lamp 077 0456 Replacement Detector Element 077 0458 Replacement PID Sensor Cap w Filter 077 0459 Note Use nitrile gloves when handling the Lamp and metallized Detector Element Avoid touching the Lamp Lamp Window and Detector Element with your bare fingers Fingerprints on any of these parts may adversely affect the sensor s operation It is acceptable to hold the lamp by its glass body or by the edges of the window Cleaning the Detector Element To clean the detector element remove the sensor cap and filter from the PID Figure 10 by pushing upwards with your fingernail or the tip of a screwdriver Remove the perforated gold detector element carefully with a fine tipped tweezers Figure 11 by prying under the element s edge where the P N 087 0019 Rev C
59. to 20 C 0 to 20 C Sensor Cross Sensitivity Filtered against H2S 15 ppm lt 0 5 ppm Filtered against SO2 5 ppm approx 0 ppm Combustible Sensor Specifications Nitric Oxide 35 ppm lt 3 ppm Range 0 to 80 LEL Nitrogen Dioxide 5 ppm approx 1 ppm 0 to 100 v v Gas Chlorine 1 ppm approx 0 ppm Response Time 1750 10 seconds Hydrogen 100 ppm lt 40 ppm T90 30 seconds Ethylene 100 ppm lt 50 ppm Operating Temp 40 to 200 C Ethanol 200 ppm approx 0 ppm Humidity 0 to 99 RH Non condensing Storage Temp 32 to 68 F 0 to 20 C P N 087 0019 Rev C 59 September 2009 Accuracy Linearity PIN 087 0019 Rev C LEL 3 of applied gas viv Gas t 10 of applied gas LEL 3 of Full Scale viv Gas 10 of Full Scale 60 September 2009 Appendix 2 Gas Interferences CO H2S CO H2S SO2 NO NO2 CL2 NH3 PH3 Dual Tox Sensor lt 05 1 100 lt 1 0 lt 5 0 0 H2S lt 3 100 100 20 lt 1 8 3 100 S02 0 20 2 lt 1 100 0 0 0 60 20 NO lt 10 lt 2 lt 10 15 lt 1 100 0 0 20 NO2 lt z 20 20 20 25 100 lt 30 100 0 CL2 0 5 5 100 100 50 H2 lt 40 lt 0 2 30 0 lt 0 1 Values shown are in PPM The above table shows known Gas Interferences to a limited number of chemical compounds SCOTT Health amp Safety makes every effort to identify possible gas
60. to replace and recalibrate it than to obtain and install a bypass tube Either action requires a visit to the instrument shop It should never be attemped in the field Pump By Pass Tube part 077 0314 39 September 2009 NOTES PIN 087 0019 Rev C 40 September 2009 Scout Portable Gas Monitor Scout Advanced Users Section P N 087 0019 Rev C 41 6 0 Navigating Scout Menus The four buttons surrounding the display See Figure on next page select the various menus The specific function of each button depends on the legend displayed adjacent to the button indicates the specific function of the button for the active mode The procedures in this manual refer to the buttons as Upper Left Lower Left Upper Right and Lower operating mode of the Scout Generally an arrow or Right Displayed Action 1 Highlight the next higher selection on a menu screen 2 Adjust a selected value upscale when highlighted line has been activated by pressing Lower Right Take the action indicated by the adjacent text Upper Left Up Arrow Left Arrow None Activate back light 1 Highlight the next lower selection on a menu screen 2 Adjust a selected value downscale when highlighted line has been activated by pressing Lower Right Lower Left Down Arrow Left Arrow Upper Right X Esc or Escape Take the action indicated by the adjacent text 1 Revert to the previous screen 2 If an adjustment is
61. ton switches the backlight on and off P N 087 0019 Rev C 35 September 2009 NOTES PIN 087 0019 Rev C 36 September 2009 Maintenance 5 0 General Maintenance Due to unique microprocessor circuitry design and proven reliability of the Scout a set maintenance schedule is not required Only a visual inspection before each days usage of the following Diffusion mode of operation Filter covering the sensors check for dirt contamination and or discoloration This filter is visible in the sensor cavity area located on the top of the instrument behind the display section Remote sampling mode of operation Filter located in the sample probe check for dirt moisture and or discoloration Intellishutter operation check for dirt contamination in the button track and on top of the shutter See the Troubleshooting Section for filter replacement and shutter cleaning instructions P N 087 0019 Rev C 5 1 Sensor Replacement Sensors are typically expected to last up to 2 years Many factors contribute to sensor life such as but not limited to exposure levels operating temperature calibration frequency humidity exposure levels and ppm hours Scott Health amp Safety recommends replacing all sensors at the 2 year period When any or all sensors are replaced it is recommended that the rubber manifold pump inlet filter and the sensor filter be replaced See the Troubleshooting Section for filter re
62. trations 4 STEL TWA display with live gas concentrations plus the timed accumulations 5 MASTER MENU which provides access to additional features such as data logging and STEL TWA control Other screens can be made available to the Technical User via Set Up Setup User Logging in as a Setup User under password protection gains access to the same features as for a Technical User In addition the Setup User can change the instrument configuration 15 September 2009 Scout User Screens Main Display Cal Zero Display Hold Peaks Now Peak P N 087 0019 Rev C Escape X Next ppm J H25 Hold Peaks Now Peak 20 9 O2 20 9 Minimum 17 9 0 ppm CO 0 O ppm H2S 0 O LEL Meth 0 a Reset Next STEL TWA Login amp Info MASTER MENU Technical or Setup Mode only Acumulated Hrs 03 51 Now STEL TWA 20 9 02 0 ppm CO 0 0 0 ppm H2S 0 0 O LEL Meth Next t LOGIN amp INFO X Calibrate in O days Battery 98 02 June 01 12 59 75 F User Setup Location Any y Next m t MASTER MENU X Setup Alarm Setpoints Event Log STEL TWA Calibration 3 Next m 16 September 2009 including alarm thresholds calibration gas concentrations and many others The Setup User can change the displays available to the General User and Technical User
63. trictions O2 PARAMETERS Paramters Menu Example of sensor parameters High Alarm High Warning Low Alarm Low Warning Sensor Zero Calibration Concentration giving immediate alarm response Active if set lower than High Alarm Oxygen depletion level giving immediate alarm response Active if set higher than Low Alarm Select Disabled Enabled Diffusion Disabled Suppress readings Enabled Show gas readings Diffusion Show readings only when shutter is open Activate process to calibrate for zero oxygen using N 51 CO PARAMETERS Paramters Menu Example of toxic sensor parameters Alarm Level Warning Level STEL Alarm TWA Alarm Cal Gas Sensor Concentration giving immediate alarm response Active if set lower than Alarm Level 15 minute average concentration limit 8 hour average concentration limit Set to match calibration gas concentration Select Disabled Enabled Diffusion Air Free Disabled Suppress readings Enabled Show gas readings Diffusion Show readings only when shutter is open Air Free CO only compensate readings lt 16 O2 COMB PARAMETERS Paramters Menu Example of sensor parameters Alarm Level Warning Level Cal Gas Conctr Cal Gas LEL Gas Cal Gas Concentration giving immediate alarm response Active if set lower than Alarm Level Set to match calibration gas concentration Sequentially choose from list of available gas name
64. ut for moisture or dirt Ensure setting in sensor parameters match your calibration Instrument will not turn on Remove battery pack and replace batteries Replace all batteries together one dead battery will quickly kill the other batteries CO has high negative or positive reading If batteries were removed for more than 30 minutes the bias will be lost on the sensor If the batteries are installed the bias will return and the sensor can be zeroed and calibrated This may take hours if the battery was removed for more than 24 hours Leak Test shows unblock flow but message will not go away Check the pump flow rate with a 1 LPM flow meter If the reading is lt 5 LPM the pump should be replaced Sometimes a pumps life can be extended temporarily by reducing the flow slightly in the Remote Sampling gt Set Flow menu Instrument constantly displays 0 days to calibration event after a calibration is performed By default calibration period is set to 0 days To modify this setting go to the Instrument Parameters Menu and Select Cal Period 55 September 2009 NOTES PIN 087 0019 Rev C 56 September 2009 Scout Portable Gas Monitor Appendices P N 087 0019 Rev C 97 September 2009 Appendix 1 Case Material Dimensions Weight Power Source Instrument Temperature Range Battery Life PIN 087 0019 Rev C Technical Specifications ABS Plastic with Ni
65. y calibration status of all sensors PARAMETERS MENU Setup Menu Instrument Params Remote Sampling O2 Parameters CO Parameters COMB Parameters To menu to set instrument properties To menu to adjust pump and related properties To menu to adjust sensor properties e g O2 To adjust sensor properties e g CO e g combustible 48 GENERAL DSPLY Setup Menu Include or exclude displays in General user selections Show Hide Gas Readings Main Gas Display S H Zoom into Alarm Expanded display of a single gas with alarm condition S H Zero and Cal Direct user access to sensor zero and span processes S H Hold Peaks Similar to main gas hold extreme readings until reset S H Live with Peaks Tabular list of current and extreme readings with reset S H Live with STEL TWA Tabular list of current and accumulated readings S H Leak Bars Graphic display of small concentrations of combustible gas including LEL TECH DISPLYS Setup Menu Identical function to General Displays Menu for Technical and setup user USERS MENU Setup Menu Add User Define name password and access level of a new user Edit User Modify password or access level of an existing user Delete User Remove a user from the list of users available at log in LOCATIONS Setup Menu Add Location Define the name of a new location Delete Location Remove a location from the

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