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Gaswechsel im Logbuch
Posted by: scubatinoo ()
Date: November 02, 2016 10:03AM

Hallihallo

Mal wieder eine Frage meinerseits :-)

Ich lese die Logbuchdaten mit Subsurface aus. Jetzt ist mir aufgefallen, dass bei "Jojo-Tauchgängen" (z.B. bei Arbeiten am Hafengeschirr) immer beim Abtauchen ein Gaswechsel angezeigt wird. Bei "sauberen" Tauchgängen hingegen wird alles so angezeigt wie es soll...

Was wird da ins Logbuch des OSTC geschrieben, dass Subsurface meint es handelt sich um einen Gaswechsel? Es gibt ja zwei Möglichkeiten: Der OSTC schreibt was falsches ins Logbuch oder Subsurface interpretiert die erhaltenen Daten falsch...

Vielen Dank, wenn ihr der Sache kurz nachgehen könnt.

regards,
scubatinoo

><((((º> OSTC 2N 3705 <º)))><

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Re: Gaswechsel im Logbuch
Posted by: heinrichsweikamp ()
Date: November 02, 2016 11:30AM

Kannst Du den mitsprechenden TG mal posten (Idealerweise als .dive Datei von den "OSTC Tools" )?

Gruß,
Matthias

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Re: Gaswechsel im Logbuch
Posted by: scubatinoo ()
Date: November 02, 2016 02:27PM

Dummerweise habe ich bei den jüngsten Tauchgängen die "Gaswechsel" bereits gelöscht... Habe erst im Nachhinein gemerkt dass es eine gewisse Regelmässigkeit gibt... Habe aber noch einen älteren Tauchgang gefunden- siehe Screenshot. Und eine weitere Regelmässigkeit entdeckt: Bei den Tauchgängen handelt es sich um TG's, welche von Subsurface zusammengefügt werden. Du bekommst also 2 Stk. dive Dateien von mir... :-) Gut möglich also, dass Subsurface da selber was durcheinander bringt.

regards,
scubatinoo

><((((º> OSTC 2N 3705 <º)))><

Attachments: snip_20161102132312.png (64.1 KB)   00147_23-07-2015_005m_011min.dive (1.5 KB)   00148_23-07-2015_005m_013min.dive (1.7 KB)  
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Re: Gaswechsel im Logbuch
Posted by: heinrichsweikamp ()
Date: November 02, 2016 03:59PM

Schau mal hier in die Details:

Filename: 00147_23-07-2015_005m_011min.dive

DiveNumber: 147
Date of dive: 23.07.2015
Time at begin of dive: 12:26:21
Time at end of dive: 12:43:00
Maximum depth (mbar): 468
Maximum depth (bar): 0,468
Divetime: 11min 35sec

Selected Gas at begin of dive (1): 21/0
Gas 1: Air
Gas 2: EAN50
Gas 3: Oxygen
Gas 4: Air
Gas 5: Air
Gas 6: Air
Active gases at end of dive (1) Air

Minimum water temperature: 21,8
Maximum water temperature from profile:23,5
Minimum water temperature from profile:22
Surface air pressure (mBar): 977
Salinity: 1
Desaturation time after dive (min): 33
Maximum CNS (%): 0

Average depth: 357 mbar
Total divetime: 999 sec
Gradient Factor Low: 15%
Gradient Factor High: 85%
Decotype: ZH-L16-GF OC
Last decostep is at 3m.

Firmware version: 303
LogBookProfileVersion: 33
Battery voltage in mV after dive: 4,076
2 Full hours of use (Active modes) since last full charge.

Sampling rate (sec): 10
Sampling divisor temperature: 6 information size 2
Sampling divisor deco/NDL: 6 information size 2
Sampling divisor gradientfactor: 6 information size 1
Sampling divisor ppO2 sensors: 0 information size 3
Sampling divisor decoplan: 0 information size 15
Sampling divisor CNS: 12 information size 1

Profile data

Number of ProfileEntries: 99

Entry   Time   Depth   mBar , Additional Info
    1 0:00:10   3,22m    316 
    2 0:00:20   3,31m    325 
    3 0:00:30   3,32m    326 
    4 0:00:40   3,45m    338 
    5 0:00:50   3,28m    322 
    6 0:01:00   3,20m    314 , Temperature 231, Non Deko Limit 240min, Gradient factor 0
    7 0:01:10   3,25m    319 
    8 0:01:20   3,44m    337 
    9 0:01:30   3,95m    387 
   10 0:01:40   3,74m    367 
   11 0:01:50   3,51m    344 
   12 0:02:00   3,87m    380 , Temperature 226, Non Deko Limit 240min, Gradient factor 0, CNS 0
   13 0:02:10   4,08m    400 
   14 0:02:20   4,06m    398 
   15 0:02:30   4,05m    397 
   16 0:02:40   4,07m    399 
   17 0:02:50   3,98m    390 
   18 0:03:00   4,20m    412 , Temperature 222, Non Deko Limit 240min, Gradient factor 0
   19 0:03:10   3,90m    382 
   20 0:03:20   3,21m    315 
   21 0:03:30   3,07m    301 
   22 0:03:40   2,50m    245 
   23 0:03:50   3,10m    304 
   24 0:04:00   3,32m    326 , Temperature 231, Non Deko Limit 240min, Gradient factor 0, CNS 0
   25 0:04:10   3,44m    337 
   26 0:04:20   3,55m    348 
   27 0:04:30   3,60m    353 
   28 0:04:40   3,07m    301 
   29 0:04:50   2,85m    279 
   30 0:05:00   3,44m    337 , Temperature 229, Non Deko Limit 240min, Gradient factor 0
   31 0:05:10   3,37m    330 
   32 0:05:20   3,46m    339 
   33 0:05:30   4,03m    395 
   34 0:05:40   3,75m    368 
   35 0:05:50   4,23m    415 
   36 0:06:00   4,14m    406 , Temperature 222, Non Deko Limit 240min, Gradient factor 0, CNS 0
   37 0:06:10   4,26m    418 
   38 0:06:20   3,94m    386 
   39 0:06:30   3,84m    377 
   40 0:06:40   4,09m    401 
   41 0:06:50   4,07m    399 
   42 0:07:00   3,84m    377 , Temperature 220, Non Deko Limit 240min, Gradient factor 0
   43 0:07:10   3,41m    334 
   44 0:07:20   3,46m    339 
   45 0:07:30   3,43m    336 
   46 0:07:40   3,29m    323 
   47 0:07:50   3,47m    340 
   48 0:08:00   3,85m    378 , Temperature 221, Non Deko Limit 240min, Gradient factor 0, CNS 0
   49 0:08:10   3,74m    367 
   50 0:08:20   3,17m    311 
   51 0:08:30   1,88m    184 
   52 0:08:40   0,49m     48 
   53 0:08:50   0,43m     42 
   54 0:09:00   0,47m     46 , Temperature 230, Non Deko Limit 240min, Gradient factor 0
   55 0:09:10   0,44m     43 
   56 0:09:20   0,42m     41 
   57 0:09:30   0,41m     40 
   58 0:09:40   0,53m     52 
   59 0:09:50   1,97m    193 
   60 0:10:00   3,10m    304 , Temperature 233, Non Deko Limit 240min, Gradient factor 0, CNS 0
   61 0:10:10   3,25m    319 
   62 0:10:20   3,70m    363 
   63 0:10:30   3,63m    356 
   64 0:10:40   3,54m    347 
   65 0:10:50   3,62m    355 
   66 0:11:00   3,78m    371 , Temperature 224, Non Deko Limit 240min, Gradient factor 0
   67 0:11:10   3,87m    380 
   68 0:11:20   3,93m    385 
   69 0:11:30   4,11m    403 
   70 0:11:40   4,32m    424 
   71 0:11:50   4,41m    432 
   72 0:12:00   4,33m    425 , Temperature 220, Non Deko Limit 240min, Gradient factor 0, CNS 0
   73 0:12:10   4,55m    446 
   74 0:12:20   4,42m    433 
   75 0:12:30   2,99m    293 
   76 0:12:40   0,20m     20 
   77 0:12:50   0,36m     35 
   78 0:13:00   0,30m     29 , Temperature 229, Non Deko Limit 240min, Gradient factor 0
   79 0:13:10   0,22m     22 
   80 0:13:20   0,25m     25 
   81 0:13:30   0,05m      5 
   82 0:13:40   0,31m     30 
   83 0:13:50   0,38m     37 
   84 0:14:00   0,34m     33 , Temperature 233, Non Deko Limit 240min, Gradient factor 0, CNS 0
   85 0:14:10   0,32m     31 
   86 0:14:20   0,23m     23 
   87 0:14:30   0,28m     27 
   88 0:14:40   0,08m      8 
   89 0:14:50   0,08m      8 
   90 0:15:00   0,27m     26 , Temperature 235, Non Deko Limit 240min, Gradient factor 0
   91 0:15:10   0,04m      4 
   92 0:15:20   0,07m      7 
   93 0:15:30   0,00m      0 
   94 0:15:40   0,02m      2 
   95 0:15:50   0,04m      4 
   96 0:16:00   0,01m      1 , Temperature 234, Non Deko Limit 240min, Gradient factor 0, CNS 0
   97 0:16:10   0,04m      4 
   98 0:16:20   0,04m      4 
   99 0:16:30   0,01m      1

und der 2. TG

Filename: 00148_23-07-2015_005m_013min.dive

DiveNumber: 148
Date of dive: 23.07.2015
Time at begin of dive: 12:46:14
Time at end of dive: 13:07:00
Maximum depth (mbar): 453
Maximum depth (bar): 0,453
Divetime: 13min 1sec

Selected Gas at begin of dive (1): 21/0
Gas 1: Air
Gas 2: EAN50
Gas 3: Oxygen
Gas 4: Air
Gas 5: Air
Gas 6: Air
Active gases at end of dive (1) Air

Minimum water temperature: 22
Maximum water temperature from profile:23,7
Minimum water temperature from profile:22,1
Surface air pressure (mBar): 977
Salinity: 1
Desaturation time after dive (min): 69
Maximum CNS (%): 0

Average depth: 343 mbar
Total divetime: 1246 sec
Gradient Factor Low: 15%
Gradient Factor High: 85%
Decotype: ZH-L16-GF OC
Last decostep is at 3m.

Firmware version: 303
LogBookProfileVersion: 33
Battery voltage in mV after dive: 4,047
3 Full hours of use (Active modes) since last full charge.

Sampling rate (sec): 10
Sampling divisor temperature: 6 information size 2
Sampling divisor deco/NDL: 6 information size 2
Sampling divisor gradientfactor: 6 information size 1
Sampling divisor ppO2 sensors: 0 information size 3
Sampling divisor decoplan: 0 information size 15
Sampling divisor CNS: 12 information size 1

Profile data

Number of ProfileEntries: 124

Entry   Time   Depth   mBar , Additional Info
    1 0:00:10   1,96m    192 
    2 0:00:20   2,29m    225 
    3 0:00:30   3,19m    313 
    4 0:00:40   3,48m    341 
    5 0:00:50   3,57m    350 
    6 0:01:00   3,59m    352 , Temperature 229, Non Deko Limit 240min, Gradient factor 0
    7 0:01:10   3,55m    348 
    8 0:01:20   3,53m    346 
    9 0:01:30   3,39m    332 
   10 0:01:40   3,39m    332 
   11 0:01:50   3,66m    359 
   12 0:02:00   3,26m    320 , Temperature 230, Non Deko Limit 240min, Gradient factor 0, CNS 0
   13 0:02:10   2,97m    291 
   14 0:02:20   3,03m    297 
   15 0:02:30   3,51m    344 
   16 0:02:40   3,71m    364 
   17 0:02:50   3,37m    330 
   18 0:03:00   3,47m    340 , Temperature 228, Non Deko Limit 240min, Gradient factor 0
   19 0:03:10   2,53m    248 
   20 0:03:20   0,79m     77 
   21 0:03:30   0,46m     45 
   22 0:03:40   0,54m     53 
   23 0:03:50   1,62m    159 
   24 0:04:00   2,48m    243 , Temperature 234, Non Deko Limit 240min, Gradient factor 0, CNS 0
   25 0:04:10   3,39m    332 
   26 0:04:20   3,67m    360 
   27 0:04:30   3,58m    351 
   28 0:04:40   3,43m    336 
   29 0:04:50   3,59m    352 
   30 0:05:00   3,64m    357 , Temperature 228, Non Deko Limit 240min, Gradient factor 0
   31 0:05:10   3,61m    354 
   32 0:05:20   1,66m    163 
   33 0:05:30   0,47m     46 
   34 0:05:40   0,44m     43 
   35 0:05:50   0,39m     38 
   36 0:06:00   0,65m     64 , Temperature 234, Non Deko Limit 240min, Gradient factor 0, CNS 0
   37 0:06:10   2,68m    263 
   38 0:06:20   3,61m    354 
   39 0:06:30   3,56m    349 
   40 0:06:40   3,73m    366 
   41 0:06:50   3,92m    384 
   42 0:07:00   4,49m    440 , Temperature 223, Non Deko Limit 240min, Gradient factor 0
   43 0:07:10   4,48m    439 
   44 0:07:20   4,46m    437 
   45 0:07:30   3,92m    384 
   46 0:07:40   3,89m    381 
   47 0:07:50   4,25m    417 
   48 0:08:00   3,35m    329 , Temperature 222, Non Deko Limit 240min, Gradient factor 0, CNS 0
   49 0:08:10   3,40m    333 
   50 0:08:20   3,52m    345 
   51 0:08:30   4,02m    394 
   52 0:08:40   4,30m    422 
   53 0:08:50   3,42m    335 
   54 0:09:00   3,70m    363 , Temperature 226, Non Deko Limit 240min, Gradient factor 0
   55 0:09:10   3,38m    331 
   56 0:09:20   3,80m    373 
   57 0:09:30   3,84m    377 
   58 0:09:40   3,93m    385 
   59 0:09:50   4,03m    395 
   60 0:10:00   3,95m    387 , Temperature 221, Non Deko Limit 240min, Gradient factor 0, CNS 0
   61 0:10:10   4,31m    423 
   62 0:10:20   4,19m    411 
   63 0:10:30   4,04m    396 
   64 0:10:40   3,73m    366 
   65 0:10:50   4,00m    392 
   66 0:11:00   3,98m    390 , Temperature 222, Non Deko Limit 240min, Gradient factor 0
   67 0:11:10   4,03m    395 
   68 0:11:20   3,78m    371 
   69 0:11:30   4,05m    397 
   70 0:11:40   4,04m    396 
   71 0:11:50   4,05m    397 
   72 0:12:00   4,02m    394 , Temperature 223, Non Deko Limit 240min, Gradient factor 0, CNS 0
   73 0:12:10   3,99m    391 
   74 0:12:20   3,76m    369 
   75 0:12:30   3,92m    384 
   76 0:12:40   3,90m    382 
   77 0:12:50   3,66m    359 
   78 0:13:00   2,76m    271 , Temperature 223, Non Deko Limit 240min, Gradient factor 0
   79 0:13:10   0,69m     68 
   80 0:13:20   0,27m     26 
   81 0:13:30   0,24m     24 
   82 0:13:40   0,17m     17 
   83 0:13:50   0,21m     21 
   84 0:14:00   0,13m     13 , Temperature 233, Non Deko Limit 240min, Gradient factor 0, CNS 0
   85 0:14:10   0,10m     10 
   86 0:14:20   0,40m     39 
   87 0:14:30   0,12m     12 
   88 0:14:40   0,07m      7 
   89 0:14:50   0,16m     16 
   90 0:15:00   0,23m     23 , Temperature 235, Non Deko Limit 240min, Gradient factor 0
   91 0:15:10   0,17m     17 
   92 0:15:20   0,30m     29 
   93 0:15:30   0,27m     26 
   94 0:15:40   0,25m     25 
   95 0:15:50   0,12m     12 
   96 0:16:00   1,10m    108 , Temperature 235, Non Deko Limit 240min, Gradient factor 0, CNS 0
   97 0:16:10   2,11m    207 
   98 0:16:20   3,03m    297 
   99 0:16:30   2,99m    293 
  100 0:16:40   1,41m    138 
  101 0:16:50   0,29m     28 
  102 0:17:00   0,32m     31 , Temperature 236, Non Deko Limit 240min, Gradient factor 0
  103 0:17:10   0,37m     36 
  104 0:17:20   0,00m      0 
  105 0:17:30   0,06m      6 
  106 0:17:40   0,15m     15 
  107 0:17:50   0,14m     14 
  108 0:18:00   0,07m      7 , Temperature 236, Non Deko Limit 240min, Gradient factor 0, CNS 0
  109 0:18:10   0,15m     15 
  110 0:18:20   0,04m      4 
  111 0:18:30   0,04m      4 
  112 0:18:40   0,22m     22 
  113 0:18:50   0,00m      0 
  114 0:19:00   0,00m      0 , Temperature 237, Non Deko Limit 240min, Gradient factor 0
  115 0:19:10   0,04m      4 
  116 0:19:20   0,11m     11 
  117 0:19:30   0,12m     12 
  118 0:19:40   0,19m     19 
  119 0:19:50   0,01m      1 
  120 0:20:00   0,14m     14 , Temperature 237, Non Deko Limit 240min, Gradient factor 0, CNS 0
  121 0:20:10   0,02m      2 
  122 0:20:20   0,30m     29 
  123 0:20:30   0,01m      1 
  124 0:20:40   0,13m     13

Ich würde sagen das ist eine Subsurface "Funktion".

Gruß,
Matthias

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Re: Gaswechsel im Logbuch
Posted by: TnT ()
Date: November 02, 2016 04:23PM

Libdivecomputer reports a gaschange on the first sample to indicate the initial gas mix. So if you join two dives in subsurface, that switch is probably the initial mix of the second half. If you join two dives with the same initial mix (e.g. Air), then the switch is basically a no-op (e.g. air to air).

--
libdivecomputer developer
[www.libdivecomputer.org]

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Re: Gaswechsel im Logbuch
Posted by: scubatinoo ()
Date: November 02, 2016 05:56PM

Hm... Now i see a difference:

Selected Gas at begin of dive (1): 21/0
...
Active gases at end of dive (1) Air

Although "21/0" and "Air" are the same, they are not? What happens if we change
"21/0" (begin of dive) to "Air" or "Air" (end of dive) to "21/0" so that the two values are same-same in text and meaning?

The difference in text could explain why Subsurface thinks that i had a gas change, from "Air" to "21/0"...

regards,
scubatinoo

><((((º> OSTC 2N 3705 <º)))><

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Re: Gaswechsel im Logbuch
Posted by: Rob ()
Date: November 03, 2016 09:41AM

scubatinoo,

die 21/0 stammen von OSTCTools, das ist ein Formatierungsfehler in der Anzeige.
Wichtig ist hier das
Selected Gas at begin of dive (1): 21/0
Active gases at end of dive (1) Air

das bedeutet das zu begin und ende Gas 1 selektiert war.

Viele Grüße
Rob

Home of OSTC Tools: [ostctools.angermayr.eu]
Home: [www.angermayr.eu]
email: ostctools@angermayr.eu

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Re: Gaswechsel im Logbuch
Posted by: scubatinoo ()
Date: November 03, 2016 07:03PM

Danke Rob, für die Aufklärung smileys with beer

regards,
scubatinoo

><((((º> OSTC 2N 3705 <º)))><

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