Overview surface mode:

Overview dive mode:

Short manual for OSTC:

Display in surface mode

Turn-on procedure:

• Manual turn-on: Keep both buttons on hold for two seconds
• Automatic turn-on: The OSTC switches itself on after 5 seconds (at the latest) in about 2,5 m water depth

Turn-off procedure:

The OSTC switches automatically into sleep mode after 240 s in surface mode (CF #3 in s)

Menu:

	Press Set/Menu, confirm with Enter
Logbook:
	Chronologically lists all dives in the profile memory (the most recent dive carries the number 1) Select dive with Set/Menu. Enter shows all details of the selected dive on a new page Available information: date/time at the end of the dive, max. depth, dive time, min. temperature, air pressure before the dive in mbar, max. allowed altitude in m directly after the dive, profile Back to the list with Set/Menu
Gas Setup:
	Up to five gases can be configured (default is gas #1) Select with Set/Menu, increase single values with Enter Display of the current selection under "Current" Reset the gas to compressed air with "Default"
Set Time:
	Manual setting of date and time Increase current value with Enter, select next one with Set/Menu. Seconds will be set to 0 after the last setting ("Set Year"), and the time will be shown for 5 seconds
Reset all:
	Selection has to be confirmed with Enter for 10s, then gases, Custom Functions and decompression data will be reset to their standard values. Logbook and time will not be deleted.
Custom Functions:
	32 custom functions are individually configurable; custom functions (CF) are parameters that influence the running of the program Select the action with Set/Menu, confirm or change with Enter "+/-": increase or decrease value of the CF? "1/10": choose size of a step "Default": Resets CF to default values; the information in brackets shows whether it concerns a 8Bit number (0-255) or a 15Bit number (0-32767) "Current": applies the operation in question (e.g. "+10") to the current value   CF0: water depth in cm for the automatic switch into dive mode CF1: water depth in cm for the automatic switch out of dive mode CF2: delay in s for end of dive mode CF3: timeout in s for menus and surface mode CF4: hold time in s for pre-menu display CF5: threshold in m/min for display of vertical velocity CF6: absolute pressure in mbar for switch-on from sleep mode CF7: max. "allowed" air pressure in mbar for air pressure compensation in sleep mode CF8: threshold in % for display of the gradient factor for decompression calculation CF9: Threshold in % (O2-Mix) for display of current gas in divemode CF10: timeout in s for menus in divemode CF11: factor in % for saturation processes * CF12: factor in % for desaturation processes * CF13: Ratio in % for NoFly-Time according to desaturation time CF14: Treshold in % for optical gradient factor alarm CF15: Treshold in % for acustic gradient factor alarm CF16: estimated distance to decostop in 0.1m steps CF17: Lower treshold in 0.01Bar for ppO2 warning * CF18: Upper treshold in 0.01Bar for ppO2 warning * CF19: Upper treshold in 0.01Bar for ppO2 display in dive mode * CF20: depth sampling rate in seconds for Profile storage CF21: sampling_divisor_temperature (For details see PDF file "Protocol description" in Downloads) CF22: sampling_divisor_decodata (For details see PDF file "Protocol description" in Downloads) CF23: sampling_divisor_tankdata (For details see PDF file "Protocol description" in Downloads) CF24: sampling_divisor_ppo2_sensors (For details see PDF file "Protocol description" in Downloads) CF25: sampling_divisor_nyu1 (Not used yet) (For details see PDF file "Protocol description" in Downloads) CF26: sampling_divisor_nyu2 (Not used yet) (For details see PDF file "Protocol description" in Downloads) * Critical custom functions! If value is not set to default a warning will be displayed!

Dive mode:

	Display in dive mode
	Menu in dive mode