VRAE: User Manual - Eco Environmental
Contents
1. Peak and Minimum Clear All Data e Change Datalog Period e Select Data Type e View Datalog e Enable Disable Datalog Choose Y to accept or N to move on MODE to escape Change Monitor Setup Change Site ID e Change User ID e Change Alarm Mode e Change User Mode v Program Y Display v Text Change Monitor Setup e Change Real Time Clock e Change Backlight Mode e Change Password e Change Pump Speed e Change Averaging Method e Set Temperature Unit C or F Choose Y to accept or N to move on MODE to escape Change Sensor Configuration e Change LEL VOL Sensor Type e Enable Disable Sensor e Change Dilution Ratio e Change LEL VOL Gas Selection Choose Y to accept or N to move on MODE to escape VRAE Power Off _e Hold Mode Key for full 5 seconds e Audible alarm will beep and display will read Power down in 5 seconds e Plug 12 VDC charger into VRAE charge port when not in use VRAE Smart Charging TOX2 TOX3 Start Battery OXY discharge e NIMH does not need deep discharge e Full charge can take up to 10 hours e With the smart charging circuitry removing the charger is not necessary VRAE Trickle Charging TOX2 TOX3 OXY e Turning off and on power to charger will reset charge to high and may burn out battery if done repeatedly VRAE Alkal2. TWA OXY e Time Weighted Average is the accumulated dose in pom hours since the VRAE was turned on divided by 8 hours e TWA only is calculated for toxics e TWA alarm beeps once per second e Tap MODE key to proceed to next screen W Es This screen is deleted in Text Mode Battery Voltage Display TOX2 TOX3 Battery 5 1V Shut off at 4 1V e VRAE shuts down when battery voltage drops below 4 2 volts e Normal full charge Is over 4 8 volts e Tap MODE key to proceed to next screen OXY This screen is deleted in Text Mode Date Time Run Time Temp Display TOX TOX2 TOXS Feb 15 01 12 00 ON 01 22 75 F pe e Date Time of day e Accumulated time in hours and minutes since the VRAE was turned on e Temperature in Centigrade or Fahrenheit operating range 20 to 45 C 4 to 1132 e Tap MODE key to proceed This screen is deleted in Text Mode Datalog Mode Display TOX2 TOX3 Start Datalog OXY Manual logs if Y key is pushed now Automatic this screen is deleted and it logs data when as soon as the VRAE turns on ocheduled logs data at a preset date amp time Periodic start and stop datalogging daily based on preset time This screen is deleted in Text Mode Datalog Mode Display TOX1 TOX2 TOX3 0 0 0 0 LEL 0 L 20 9 OXY e A small L displayed in the left center of the screen indicates datalogging Is active e W
3. Use MODE to select sensor Single Sensor Calibration Attach calibration gas regulator to calibration gas cylinder e Attach calibration hose to VRAE and make sure It is tight e Turn on cal gas Pre soak slow sensors e With cursor on the appropriate sensor press Y key e Follow instructions on screen e Repeat if necessary for other gases e Disconnect regulator Single Sensor Pre Soak e Standard Cal time is 60 sec except for ClO2 which Is 150 sec e Some slow sensors require pre equilibration Response Total Pre exposure Time t Cal Time Time for 1 min To seconds Cal Time 20 20 0a ao Nie 1 5 CO H2S SO2 NO NO2 02 LEL VOL Calibration e Modify Span Value Y Allows you to change the calibration gas values to use other cal gases Y Do not change if you are using the RAE Systems cal gas supplied with your meter e Change LEL VOL Span Gas v Allows you to change the calibration gas which by default is methane Y Do not change if you are using the RAE Systems cal gas supplied Change Alarm Limits _e Change High alarm limit Y 3 Beeps per second High e Change Low alarm limit v 2 Beeps per second Low e Change STEL alarm limit v 1 Beep per second STEL e Change TWA alarm limit v 1 Beep per second TWA Choose Y to accept or N to move on MODE to escape di View or Change Datalog Reset
4. VRAE Using the VRAE Personal Multigas Monitor Firmware v 2 00D dl Training Agenda e VRAE features e Turning on the VRAE e Recommended Daily Start up Procedure e User displays e Alarm modes e Programming displays e Calibration VRAE Features Sensors e Oxygen 0 30 Combustibles Dual Range Y 0 100 by Volume Y 0 100 of LEL Toxic gas sensors Select up to four from CO H2S SO2 NO NO Cle CIO2 HCN NH3 PH3 LEL O 3 Toxics or LEL 4 Toxics CIO requires retrofit Teflon tubing insidi VRAE Features Reliability Extremely rugged for extensive field use Weather proof case Temperature range of 4 F to 113 F 20 C to 45 C 4 Way power NIMH Alkaline or run continuously on 110 VAC and 12 VDC Runs 10 hours continuously RFI protection against radio interference Intrinsically safe Class Division Groups A B C D gt LEL Over Range Protection VRAE Features Rugged Boot Teflon Probe Belt Clip VRAE Features Rugged Case Buzzer amp Display s Exhaust E ae Charging Port Serial Em o a a Port S YSTEMS VRAE Features Simple Faceplate Alarm LED Light Sensor e Three buttons on a sealed membrane faceplate v Y clears tests alarms v N turns on manual backlight for 90 seconds Y ON MODE a VRAE Features Internal Pump Makes remote sampling easy Sample draw over 200 feet
5. and it will shut down in 20 30 minutes e Quickly complete confined space entry and charge VRAE or install alkaline battery VRAE Alarms Memory Full TOX2 TOX3 0 0 0 0 0 MEM 20 9 PP e A flashing MEN display along with a 1 beep second audible tactile visual alarm indicates that the datalog memory Is full e Clear datalog in View or Change Datalog TOX1 Getting Into Programming e Hold MODE and N keys for 5 sec to get in Programming Mode e If VRAE asks a question v Answer Y or N e o Accept or Escape v Use MODE Key v repeatedly pushing the MODE key will always eventually return user to main display Programming Menus Calibrate Monitor e Change Alarm Limits e View or Change Datalog e Change Monitor Setup e Change Sensor Configuration e Choose Y to accept or N to move on Calibrate Monitor Fresh Air Calibration v Make sure air is clean e VOL Zero Calibration e Multiple Sensor Calibration e Single Sensor Calibration e Modify Span Gas Value e Change LEL VOL Span Gas Y Choose Y to accept or N to move on MODE to escape Fresh Air Calibration TOX2 TOX3 Fresh Alr Calib a e At Fresh Air Calibration press Y key e Zeros all sensors including LEL but not VOL and sets O2 to 20 9 e Press Y key to continue VOL Zero Calibration TOX2 TOX3 Zero ca
6. arm will only clear after 15 minutes in clean air or if the turned off TOX1 VRAE Alarms TWA TOX2 TOX3 O TIWA 0 LEL 0 20 Q OXY e TWA display along with a 1 beep second audible visual alarm indicates indicates that SO2 sensor has exceeded the TWA alarm setpoint 2 ppm default e This alarm will only clear after moving to clean air and then turning off the VRAE TOX1 TOX TOX2 TOX3 Alarms LEL OFF 0 0 0 OFF 20 9 77 OFF display along with a 3 beeps second audible visual alarm indicates that LEL sensor has been exposed to too much gas and has shut off to protect the sensor Move the meter to clean air and press the Y key to reset TOX Alarms NEG TOX2 TOX3 O NEG O LEL 0 20 9 OXY NEG display along with a 1 beep second audible visual alarm indicates indicates that SO2 sensor has drifted negative below zero because the sensor was zeroed in an area containing SO2 VRAE Alarms Pump TOX2 TOX3 O 0 0 0 El 0 Pump 20 9 e Pump display along with 3 beep audible alarm indicates that pump has stopped due to line clog e Pump alarm is a latching alarm e Clear line filter and press Y el to clear alarm and restart pump TOX1 VRAE Alarms Low Battery TOX TOX2 TOX3 0 0 0 0 mn O Bat 20 9 e A flashing Bat display along with a 1 beep alarm every 10 seconds indicates that the battery voltage has dropped below 4 35 V
7. ensor ID w OK STEL TWA Battery Time Date Temp Start Datalog Will not show LEL Gas If no datalogging Pump Speed option or US LEL VOL INC PC Comm 1tantaneous Reading Main Display TOX1 TOX2 TOX3 0 0 0 0 OK 20 9 PP e In text mode OK is displayed if there is no alarm nstantaneous Reading Main Display TOX TOX2 TOX3 LEL e CO Carbon Monoxide sensor e SO2 Sulfur Dioxide sensor e H2S Hydrogen Sulfide sensor e LEL Combustible gas sensor e OXY Oxygen sensor e Tap MODE key to proceed RKA This screen is deleted in Text Mode Peak Reading Display TOX2 TOX3 34 084 6 PEAK 20 9 PP Holds Highest reading since VRAE was turned on or Peak cleared Tap MODE key to proceed to next screen This screen is deleted in Text Mode Minimum Reading Display TOX2 TOX3 0 0 0 0 0 MIN 13 5 P e Holds Lowest reading since VRAE was turned on or Min cleared e Tap MODE key to proceed to next screet TOX Ha This screen is deleted in Text Mode STEL Display TOX2 TOX3 0 0 0 0 LEL STE OXY e Short Term Exposure Limit average for the past 15 minutes e Displays until VRAE has been on for 15 minutes e STEL only is calculated for toxics STEL alarm beeps once a second Tap MODE key to proceed Wip 5 7 TOX This screen is deleted in Text Mode TWA Display TOX TOX2 TOX3 0 0 0 0 LEL
8. horizontally and 90 feet vertically Moisture and dust trap for added protection Pump stall feature when moisture Is detected or when pump is blocked the pump will shut off protecting the VRAE from potential damage 500 cc min at High flow 25 less at Low flow Default is high VRAE vs QRAE Plus e Stronger Pump 500 vs 350 cc min Firmware amp tubing for CIO2 Sensor Better firmware for VOL Sensor Up to 4 Toxic Gas Sensors vs 3 Different form factor Higher price VRAE Start up Turning On Unplug VRAE from charger Hold MODE Key to turn on Alarm will beep once Watch display screen for messages such as Y Sensors installed their warranty expiration Y Alarm limits Y Last calibration date v User Alarm Datalog modes e Warm up will take approximately 90 secon VRAE Start up Warnings TOX2 TOX3 Incorrect Year Check Clock e f this screen appears during the start up just acknowledge it with the Y key and follow the procedure for setting the clock e The battery has gone dead and the VRAE has detected a mismatch between the date code on the sensors and its internal cloc j OXY VRAE Start up Warnings TOX2 TOX3 O2 Installed Warranty Expired e This is a warning screen As long as the sensor calibrates properly It is valid to continue using it Acknowledge by pressing the Y key to continue warm up e To ensure prope
9. ill datalog 16 000 points 53 hrs of data e Tmax Points Sensors Sample Period 16 000 5 60 192k secs 53 hours e Entering programming pauses datalogging This screen is deleted in Text Mode LEL Units Display TOX2 TOX3 LEL OXY Methane e Target Gas for LEL displayed here VRAE is currently measuring LEL in units of methane e Correction Factor can only be changed in programming mode e Tap MODE key to proceed F to next screen WI Fa This screen is deleted in Text Mode Pump Speed Display TOX2 TOX3 Pump Speed TOX1 OXY e Low speed flow rate 300 400 cc min e High speed flow rate 400 500 cc min e Tap MODE key to proceed to next screen This screen is deleted in Text Mode LEL VOL Display TOX2 TOX3 LEL VOL OXY LEL Display LEL e VOL Display VOL e Auto Ranging Display Auto e In Auto Mode after nee 100 LEL to re enter LEL readings Tap MODE key to proceed Communicate with PC Display TOX2 TOX3 Communicate with PC a e f Y key is pushed then VRAE will display Monitor will Pause OK e If Y key is pushed again the VRAE will display Ready until it receives a signal from the computer or the MODE ey IS pressed a e Tap MODE key to proceed U 7 Communicate with PC Display TOX TOX2 TOX3 Ready LEL OXY e When the VRAE
10. ine Adapter Accepts 4 AA alkaline batteries Provides 10 hours of operation Make sure that cable runs in groove between batteries or it wont fit When reattaching VRAE lid seat it first at back by batteries then push the front down p gt 2 rm des OS UA Tar a TAr i Ree M A Permi TT MARA ATA MoO Y WM EP A S YSTEMS Questions
11. is in this communication standby mode it stops monitoring gas concentrations and stops datalogging e Datalogging must be manually restarted when exiting unless automatic ataloge f is N use gt VRAE Alarm Signals e The VRAE will provide audible and visual alarms to alert users to unsafe states e lt is extremely important to note that during the following conditions the alarm signals are disabled Y When entering the Communicate with PC standby mode Y When entering the Calibrate Monitor menu Y When viewing data in the View or Change Datalog menu VRAE Alarms High TOX2 TOX3 O High 0 0 20 9 e High display along with 3 beeps second audible visible alarm and flashing display backlight indicates that TOX2 sensor SO2 has exceeded high alarm setpoint 10 pom default set point for SO2 e Press Y key to clear if latching alarm LEL VRAE Alarms Low TOX2 TOX3 0 0 0 LELI O Low 9 e Low display along with 2 beeps second audible visual alarm and flashing display backlight indicates that Oxygen sensor has gone into low alarm less than 19 5 Oxygen default e Press Y key to clear if latching alarr TOX1 VRAE Alarms STEL TOX2 TOX3 O SIEL O LEL 0 20 9 OXY e STEL display along with a 1 beep second audible visual alarm indicates indicates that SO2 sensor has exceeded STEL alarm setpoint 5 ppm default e This al
12. l done Reading Oo r e At VOL Zero Calibration press Y key Only shown in VOL or Auto LEL VOL Mode Apply VOL zero gas often pure N2 Zero s only VOL sensor does not affect O2 e Successful zero cal appears as screen ak e Press Y key to continue gt Multiple Sensor Calibration TOX2 TOX3 BO LEL OK e At Multiple Sensor Calibration press Y key e For CO H S LEL mixed gas calibration the next screen should appear as above TOX1 Multiple Sensor Calibration TOX2 TOX3 Apply Mixed Gas OXY e Press Y key to display this screen e Attach calibration gas regulator to mixed gas cylinder and attach calibration hose to VRAE e Turn on calibration gas e Follow instructions on screen Multiple Sensor Calibration TOX2 TOX3 No Gas Flow LEL OXY TOX e f you get this screen check for gas flow the VRAE will not perform span calibrations unless It senses calibration gas Multiple Sensor Calibration TOX2 TOX3 Apply gas or hit any key to start aa e ry again after you have verified that the gas is correct and It is flowing properly e Follow instructions on screen e Disconnect regulator from gas cylinder when complete calibration Single Sensor Calibration TOX2 TOX3 e Toxic sensors can be calibrated individually If necessary e At Single Sensor Calibration press Y Key e
13. r operation RAE Systems recommends replacing sensors atthe enc of their warranty period gz OXY VRAE Start up Check Sensor Zero TOX1 TOX2 TOXS 0 0 0 LEL 0 20 9 OXY After 90 sec warm up the VRAE should display readings for all of the installed sensors e If there is no alarm and the sensor readings are within limits then the VRAE is ready for use VRAE Start up Check Sensor Zero TOX1 TOX2 TOXS 0 0 3 20 6 21 2 If any reading Is outside these limits walt a few minutes then check again v If readings are in limits use the unit v If readings are still outside these limits perform Fresh air calibration VRAE Start up Pump Alarm TOX2 TOX3 0 0 0 O El 0 Pump 20 9 Every time the VRAE Is used It is important to check pump flow Block the filter on the pump inlet Reset pump alarm by pressing the Y key e If pump does not go into alarm check for loose cracked filter or service E pump Dy ELA TOX1 3 Display Modes e Program Mode 12 screens and programmability for most advanced users e Display Mode 12 screens no programmability e Text Mode 3 screens and has password to get into programming default Program 12 sensor ID PEAK MIN STEL TWA Battery Time Date Temp start Datalog LEL Gas Pump Speed LEL VOL PC Comm Comparison of Display Modes Display 12 Text 3 sensor ID Battery PEAK PC Comm MIN s
Download Pdf Manuals
Related Search