Hi,
We also use ZH-L16C. What was the deco requirement on 3m and the total deco time for this dive? What gases did you use?
You can find the used a and b constants for N2 and He here: https://code.heinrichsweikamp.com/publi ... rc/decom.c
Regards,
Matthias
Search found 4413 matches
- Tuesday 18. June 2024, 14:53
- Forum: OSTC 4 and OSTC 5
- Topic: OSTC4 Vs Shearwater Perdix 2 Real world diferences
- Replies: 10
- Views: 46879
- Monday 10. June 2024, 20:12
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: OSTC Plus Saftey Stop wird nicht angezeigt
- Replies: 4
- Views: 7211
Re: OSTC Plus Saftey Stop wird nicht angezeigt
Dann mache mal einen Reset der Einstellungen aus dem Reset Menü. Es lassen sich die div. Schwellwerte der Sicherheitsstopp-Mimik per PC-Software oder App verstellen. Irgendwas wird nicht so eingestellt sein, wie es sein soll.
Das der Sicherheitsstopp in der Software funktioniert, können wir ...
Das der Sicherheitsstopp in der Software funktioniert, können wir ...
- Friday 7. June 2024, 16:35
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: OSTC Plus Saftey Stop wird nicht angezeigt
- Replies: 4
- Views: 7211
Re: OSTC Plus Saftey Stop wird nicht angezeigt
Der Sicherheitsstopp in hwOS (Der Firmware für alle "kleinen" OSTC) funktioniert folgendermaßen:
- Der Tauchgang muss tiefer als 10m gewesen sein und länger als 1min gedauert haben
- Beim Auftauchen darf in 10m Tiefe keine Deko-Verpflichtung vorhanden sein
- Ein Countdown von 3min wird dann ...
- Der Tauchgang muss tiefer als 10m gewesen sein und länger als 1min gedauert haben
- Beim Auftauchen darf in 10m Tiefe keine Deko-Verpflichtung vorhanden sein
- Ein Countdown von 3min wird dann ...
- Sunday 2. June 2024, 15:34
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: OTSC Sport did not start with 3.7 volt rechargeable battery
- Replies: 3
- Views: 6178
Re: OTSC Sport did not start with 3.7 volt rechargeable battery
I also think that the battery does not make contact. If a 1,5V battery works, a 3,6V battery will work, too. Anything between 0,9 and 4,2V is fine for the OSTC sport.
regards,
Matthias
regards,
Matthias
- Friday 17. May 2024, 17:00
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Firmware update
- Replies: 2
- Views: 7961
Re: Firmware update
Wähle die hwos_sport_fw_10-78_DE.hex aus und drücke den "Pfeil hoch" -> Dann wird diese Version installiert.
Gruß,
Matthias
Gruß,
Matthias
- Wednesday 8. May 2024, 16:08
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: OSTC Plus Bluetooth Pairing problem - Android
- Replies: 18
- Views: 29037
Re: OSTC Plus Bluetooth Pairing problem - Android
Hi,
With older OSTC2, the Bluetooth reset from the FAQ is still valid. OSTC with the newer Bluetooth Chipset (approx since the year 2020), the Bluetooth Reset from the menu does the same as the Bluetooth-Reset procedure from the FAQ.
Try both. But if Windows can connect to your OSTC nominally, it ...
With older OSTC2, the Bluetooth reset from the FAQ is still valid. OSTC with the newer Bluetooth Chipset (approx since the year 2020), the Bluetooth Reset from the menu does the same as the Bluetooth-Reset procedure from the FAQ.
Try both. But if Windows can connect to your OSTC nominally, it ...
- Monday 29. April 2024, 12:45
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: hwOS TECH: New Firmware 3.21
- Replies: 8
- Views: 74346
Re: hwOS TECH: New Firmware 3.21
Continue here: viewtopic.php?t=22518
- Monday 29. April 2024, 12:45
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: hwOS TECH: New Firmware 3.22
- Replies: 8
- Views: 23196
hwOS TECH: New Firmware 3.22
Hello,
ENGLISH:
The new hwOS tech (for OSTC3, OSTC plus, OSTC+, cR, OSTC 2 and OSTC sport (mod. 19)) firmware 3.22 is now available for download:
https://heinrichsweikamp.com/service/firmwares
[3.22]
MD5: 9a86e4c2452b55a4dc9a043fbfa1ca71
FIX: minor fix of 12h time update in dive mode
NEW: Add ...
ENGLISH:
The new hwOS tech (for OSTC3, OSTC plus, OSTC+, cR, OSTC 2 and OSTC sport (mod. 19)) firmware 3.22 is now available for download:
https://heinrichsweikamp.com/service/firmwares
[3.22]
MD5: 9a86e4c2452b55a4dc9a043fbfa1ca71
FIX: minor fix of 12h time update in dive mode
NEW: Add ...
- Tuesday 23. April 2024, 08:33
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: hwOS TECH: New Firmware 3.21
- Replies: 8
- Views: 74346
Re: hwOS TECH: New Firmware 3.21
Hi,
The 3.22 will be published in the next days.
Regards,
Matthias
The 3.22 will be published in the next days.
Regards,
Matthias
- Monday 22. April 2024, 13:22
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Compass - bearing
- Replies: 2
- Views: 20531
Re: Compass - bearing
Hi,
The bearing is shown with this green marker in the dive mode. Red is the counter course (+180°)
The small numbers you mention is the stopwatch which replaces the temperature when the compass is shown.
The bearing is not shown as figures in the dive mode.
regards,
Matthias
The bearing is shown with this green marker in the dive mode. Red is the counter course (+180°)
The small numbers you mention is the stopwatch which replaces the temperature when the compass is shown.
The bearing is not shown as figures in the dive mode.
regards,
Matthias
- Tuesday 16. April 2024, 08:51
- Forum: OSTC 4 and OSTC 5
- Topic: Middle button does not work anymore
- Replies: 3
- Views: 15925
Re: Middle button does not work anymore
Hi,
The magnet reset in the OSTC 4 does the same as removing the battery and re-inserting it. This will not adjust the buttons.
We're in contact with Christoph already and will take care of this.
Matthias
The magnet reset in the OSTC 4 does the same as removing the battery and re-inserting it. This will not adjust the buttons.
We're in contact with Christoph already and will take care of this.
Matthias
- Tuesday 2. April 2024, 19:18
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: Cannot connect 2C and 2N to windows 11 laptop
- Replies: 11
- Views: 55942
- Tuesday 2. April 2024, 18:24
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: OSTC 2N button doesn't work
- Replies: 4
- Views: 21144
Re: OSTC 2N button doesn't work
and we replaced the buttons in this OSTC 2N...
- Tuesday 2. April 2024, 18:21
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Feature request: safety stop depth adjustment
- Replies: 1
- Views: 17846
Re: Feature request: safety stop depth adjustment
Hi,
You can configure this with HWOS Config or Subsurface.
https://www.angermayr.eu/index.php/de/s ... ostc-tools
You posted this in the wrong forum, we'll move this thread now.
Regards,
Matthias
You can configure this with HWOS Config or Subsurface.
https://www.angermayr.eu/index.php/de/s ... ostc-tools
You posted this in the wrong forum, we'll move this thread now.
Regards,
Matthias
- Thursday 14. March 2024, 18:16
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: hwOS Sport: New Firmware 10.77
- Replies: 1
- Views: 20502
hwOS Sport: New Firmware 10.77
Hello,
The new hwOS sport firmware 10.77 is now available for download:
https://heinrichsweikamp.com/service/firmwares
The following changes have been applied:
[10.77]
NEW: Descent counter for Apnoe mode
NEW: Dedicated surface customview #11 for Desat-Time, No-Fly and CNS
FIX: NDL was shown in ...
The new hwOS sport firmware 10.77 is now available for download:
https://heinrichsweikamp.com/service/firmwares
The following changes have been applied:
[10.77]
NEW: Descent counter for Apnoe mode
NEW: Dedicated surface customview #11 for Desat-Time, No-Fly and CNS
FIX: NDL was shown in ...
- Tuesday 12. March 2024, 13:10
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Uhrzeit
- Replies: 4
- Views: 6667
Re: Uhrzeit
Hallo,
Noch einfacher geht leider nicht. Ohne Strom läuft die Uhr halt nicht weiter und der OSTC stellt auf die letzte volle Stunde vor dem Stromverlust zurück. So stimmt es immerhin einigermaßen, wenn Du es vergisst einzustellen.
Gruß,
Matthias
Noch einfacher geht leider nicht. Ohne Strom läuft die Uhr halt nicht weiter und der OSTC stellt auf die letzte volle Stunde vor dem Stromverlust zurück. So stimmt es immerhin einigermaßen, wenn Du es vergisst einzustellen.
Gruß,
Matthias
- Monday 11. March 2024, 17:22
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Uhrzeit
- Replies: 4
- Views: 6667
Re: Uhrzeit
Per Smartphone koppeln, dann ist Datum/Uhrzeit stellen ein Klick (iPhone: zwei Klicks).
Gruß,
Matthias
Gruß,
Matthias
- Monday 26. February 2024, 16:31
- Forum: OSTC Mk.2, 2N and 2C (Sold between 2007 and 2014)
- Topic: Cannot connect 2C and 2N to windows 11 laptop
- Replies: 11
- Views: 55942
Re: Cannot connect 2C and 2N to windows 11 laptop
The old Mk.2, 2N and 2C OSTC used USB-UART Chips from FTDI (And yes, we used genuine ones from reliable suppliers ;-) - These are still 100% supported from Windows 11 and FTDI provides updates for these regularly https://ftdichip.com/drivers/
Usually, Windows 11 will download these automatically ...
Usually, Windows 11 will download these automatically ...
- Wednesday 14. February 2024, 10:30
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: New registered user? Please read.
- Replies: 0
- Views: 38748
New registered user? Please read.
DEUTSCH:
Aufgrund anhaltender, automatisierter SPAM Angriffe auf dieses Forum haben wir die Regelung zur Freischaltung neuer Benutzer geändert. Ihr habt Euch kürzlich registriert und könnt dennoch hier nicht posten? Bitte neu registrieren. Wir haben alle inaktiven Accounts am 7.3.2025 gelöscht ...
Aufgrund anhaltender, automatisierter SPAM Angriffe auf dieses Forum haben wir die Regelung zur Freischaltung neuer Benutzer geändert. Ihr habt Euch kürzlich registriert und könnt dennoch hier nicht posten? Bitte neu registrieren. Wir haben alle inaktiven Accounts am 7.3.2025 gelöscht ...
- Saturday 3. February 2024, 17:59
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: Letzter TG
- Replies: 2
- Views: 5126
Re: Letzter TG
Hallo David,
Die Daten für den "letzten TG" werden beim OSTC nicht aus dem Logbuch gelesen, sondern nach dem Tauchgang separat im RAM abgelegt. Ein "reboot", Firmware-Update oder Batteriewechsel setzen diese Werte ebenfalls zurück (Die Zeit "Letzter TG" startet neu, alles andere ist auf 0).
Im ...
Die Daten für den "letzten TG" werden beim OSTC nicht aus dem Logbuch gelesen, sondern nach dem Tauchgang separat im RAM abgelegt. Ein "reboot", Firmware-Update oder Batteriewechsel setzen diese Werte ebenfalls zurück (Die Zeit "Letzter TG" startet neu, alles andere ist auf 0).
Im ...
- Saturday 3. February 2024, 14:39
- Forum: OSTC+, OSTC3, cR, sport and OSTC 2 (Mod. 2015 and later)
- Topic: V10.76 does not update
- Replies: 1
- Views: 4655
Re: V10.76 does not update
Hi,
maybe you can contact us directly with some more information? info@heinrichsweikamp.com - from here, this error description makes it hard to solve this quickly.
Regards,
Matthias
maybe you can contact us directly with some more information? info@heinrichsweikamp.com - from here, this error description makes it hard to solve this quickly.
Regards,
Matthias
- Monday 15. January 2024, 18:52
- Forum: OSTC 4 and OSTC 5
- Topic: boot 2024
- Replies: 0
- Views: 29593
boot 2024
Ab dem 20. Januar läuft wieder die "boot" in Düsseldorf. Ihr findet uns am Stand A04 in der Halle 12 und wir freuen uns, dass sich wieder einige OSTC user (Und solche, die es werden wollen) einfinden werden 

- Monday 15. January 2024, 18:05
- Forum: OSTC 4 and OSTC 5
- Topic: Backplate screw size
- Replies: 3
- Views: 29601
Re: Backplate screw size
Then it's M3x4.
And you have a really old OSTC 4
email us at info@heinrichsweikamp.com - we ship screws and O-Rings for free.
Regards,
Matthias
And you have a really old OSTC 4

email us at info@heinrichsweikamp.com - we ship screws and O-Rings for free.
Regards,
Matthias
- Friday 12. January 2024, 16:15
- Forum: OSTC 4 and OSTC 5
- Topic: Backplate screw size
- Replies: 3
- Views: 29601
Re: Backplate screw size
4 screws M3x4 - for very old units it's 2 M3x4 and 2 M3x6
Regards,
Matthias
Regards,
Matthias
- Tuesday 2. January 2024, 08:47
- Forum: OSTC 4 and OSTC 5
- Topic: hwOS4: New Firmware 1.6.5 with RTE 3.20
- Replies: 13
- Views: 284974
Re: hwOS4: New Firmware 1.6.5 with RTE 3.20
Nice computer but this power supply is poorly solved. Computer charging lasts 40 hours. And now it turns out that you have to do it once a month.
Hi,
An empty OSTC4 takes about 5-6hours to recharge. This is checked with every OSTC4 we ship.
There are some things you can check:
- Power supply ...