Changes between Version 2 and Version 3 of LidarGasRefill


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Timestamp:
Jul 18, 2016, 4:46:01 PM (9 years ago)
Author:
oliver
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  • LidarGasRefill

    v2 v3  
    11= Gas Refill Instructions 
     2 
     3== Instructions 
     4  1. Open a browser an enter the IP address of the LIDAR you wish to monitor. 
     5     You'll also need the username and password for accessing the [wiki:LidarHttpServer LIDAR's web interface].  
     6  2. '''Do not change any values which are not present in this manual. This can affect LIDAR work or damage the instrument.'''  
     7  3. '''Please follow this instruction first without doing actual gas refill! 
     8     Find specific menus, controls and boxes which are described in this manual and make familiar with them.'''  
     9 
     10=== 4. Check for Laser pulses from last gas refill 
     11  1. From //System Menu// select //Monitor & Control// 
     12  2. At the bottom of page select monitorlog.txt from Internal storage box [#fig-14 (Fig. 14)] 
     13  3. You will see text with Time from last gas refill //(TimeFLG)// in seconds 
     14     and pulses from last gas refill //(LSRPulseFLG)// [#fig-15 (Fig. 15)] 
     15  4. Refill must be taken after 1E6 laser pulses, each month (2.6E6 seconds) 
     16     or if laser energy drops below 1500uJ (can be read from [#fig-4 Laser box] in //Monitor & Control//) 
     17  5. Counters will reset after each successful gas refill procedure (manual 
     18     reset is possible using the RESET button near the Reset counters in 
     19     Lidar work mode box in //System Setting// [#fig-1 (Fig 1.)] 
     20 
     21=== 5. Preparation for gas refill 
     22  1. From //System Menu// select //System Settings// [#fig-1 (Fig. 1)] 
     23  2. In Lidar work mode box [#fig-4 (Fig 4)] you will see 4 modes of operation 
     24     //(Standby, Continuous, Distance, Mixed)// with additional gas refill procedures 
     25  3. In Lidar work mode box select //Standby//, press //Change//. 
     26     In pop-up box press //OK// (leave “Prevent this page from creating additional dialog” unchecked) 
     27  4. From //System Menu// select //Monitor & Control// 
     28  5. Check the status of Laser and Gas refill system [#fig-2 (Fig. 2)] or [#fig-4 (Fig. 4)]. 
     29     The normal //Laser Pressure// is from 600 to 700 kPa, //Laser Temperature// 
     30     must be below 45(50)^([#note-1 1])^. Status messages: all are Ready and Cyl. Closed. 
     31 
     32=== 6. Starting gas refill 
     33  1. From //System Menu// select //System Settings// 
     34  2. In Lidar work mode box select //Refill laser*//, press //Change//. 
     35     In pop-up box press //OK// (leave “Prevent this page from creating additional dialog” unchecked) [#fig-3 (Fig. 3)] 
     36  3. From //System Menu// select //Monitor & Control// 
     37 
     38==== Following gas refill 
     39Now follow the information from Laser and Gas refill system boxes [#fig-4 (Fig. 4)] to [#fig-13 (Fig. 13)] 
     40  1. __Message: On start__ shows 30 seconds countdown timer 
     41  2. __Message: Vacuum.__ The Valves checkbox-es will start to toggle. 
     42     '''Do not check Enable checkbox! Do not check manually any of valve 
     43     checkbox-es (this includes Main, Fill, Air, Vac, Hel, Purge, Cyl). 
     44     This can permanently damage the laser! ''' 
     45  3. __Message: Prepump.__ Old gas is sucked out of laser. You can follow for laser gas pressure in Laser box 
     46  4. __Message: Pump.__ When the laser pressure decreases below 120kPa gas 
     47     refill system will continue to pump uninterrupted the remaining gas 
     48     out for another 180 seconds. 
     49  5. __Message: Cyl. working.__ Gas cylinder motor will start to open the 
     50     internal gas cylinder valve. 
     51  6. __Message: Cyl. open or Fill.__ When cylinder in completely open, the 
     52     Cylinder pressure (in Gas refill box) will indicate high pressure 
     53     before the pressure regulator (above 10000kPa). 
     54  7. __Message: Fill.__ Will indicate that gas refill system started to fill 
     55     laser with fresh gas from cylinder. The laser pressure will increase 
     56  8. __Message: Cyl. Close.__ The cylinder valve starts closing when laser pressure reaches 600kPa 
     57  9. __Message: Reductor.__ The gas refill system will stabilize pressure in pressure regulator and laser 
     58  10. __Message: Stopped.__ The gas refill is finished successfully. 
     59     The pressure values in laser and cylinder will be around 650kPa and 500kPa. 
     60 
     61=== 7. Finishing the gas refill 
     62  1. Check the pressure values of Laser and Cylinder^([#note-2 2])^ Normal rages are around 650kPa and 500kPa. 
     63  2. From //System Menu// select //System Settings// 
     64  3. In Lidar work mode box select //Mixed//, press //Change//. 
     65     In pop-up box press //OK// (leave “Prevent this page from creating additional dialog” unchecked) 
     66  4. The lidar will begin to operate 
     67  5. From //System Menu// select //Data view// 
     68  6. Wait for 5 to 10 seconds for the plot with signal to update. 
     69     An example of water spectrum with Raman scattering line is shown in [#fig-16 (Fig. 16)]. 
     70 
     71=== 8. Troubleshooting 
     72In any case of emergency STOP lidar operation and contact with our service team 
     73using is[at]ldi-innovation[dot]eu email. Try to provide as many information as 
     74possible with screenshots of web user interface. 
     75 
    276 
    377== Figures 
    … …  
    61135 
    62136 
     137== Footnotes 
     138=== 1 #note-1 
     13945(50) – The first number shows LIDAR internal ambient air temperature and the 
     140number in brackets () shows the temperature of electronics. Values are in '''degrees 
     141Celsius'''. Both numbers must be below 50. The laser will automatically shutdown 
     142when internal ambient air temperature rises above 45 degrees Celsius! 
     143 
     144=== 2 #note-2 
     145The LIDAR pressure in gas refill system box shows the ambient pressure inside the LIDAR hull. This value is not critical. 
     146