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Section 3 Control System
301. Control platform
1. For the surveillance and control of the submersible a control platform is to be provided which shall be equipped with indicators displaying all essential information about the vehicle, its internal con- ditions and the operating states of the ancillary systems and with all the regulating and control de- vices needed to operate the submersible including its wireless, TV and communications equipment.
2. The grouping and arrangement at the control platform of the instruments for the surveillance, con- trol and operation of the submersible shall conform to the principles of safety technology and ergonomics.
3. No units or equipment liable to impede the surveillance or control of the submersible may be in- stalled in the area of the control platform.
302. Control platform equipment
1. For each of the functions to be performed on the control platform of the submersible the following indicating instruments are to be provided as applicable:
2. Navigation and speed indicators
(1) Navigational radarscope
(2) Position indicator system (GPS, Decca, etc.)
(3) Internal communication system, External communication system
(4) TV camera
(5) Gyro compass
(6) Navigating and signal lamp monitor
(7) Obstruction signalling device (sonar unit)
(8) 2 depth indicators which work independently of each other and are not connected to the same pressure hull penetration. The scales of the depth indicators are to extend at least 20 % beyond
the maximum permissible diving depth. The instruments shall give readings accurate
maximum diving depth and shall not be significantly affected by pressure variations indicator is sufficient on one-man submersibles attached by hawser
(9) Heeling and trim angle indicator
(10) Speed and distance indicator
(11) Thrust line indicator for propeller drives
(12) Steering gear monitor
(13) Rudder angle indicators (vertical and horizontal rudders)
(14) Indicator showing speed and direction of rotation of main driving propeller
(15) Level indicators for reserve-buoyancy and trimming tanks
(16) Position indicators for mechanical trimming devices
(17) Chronometer. (independent with the vehicle's power supply)
3. Vehicle atmosphere
The indicators and alarms are specified in Ch 14 for monitoring the vehicle atmosphere.
to 1 % at One depth
4. Electrical equipment
(1) Insulation monitor display
(2) Battery charging/discharge current
(3) Battery voltage
(4) Battery capacity indicator
(5) Current consumption indicators of propeller motors
(6) Power supply/distribution indicators
5. Other indicators
(1) Pressure
gauge for all compressed-air receivers
(2) Pressure gauge for all oxygen storage tanks
(3) Pressure gauges for hydraulic systems.
(4) Combined alarms for machinery monitoring systems
(5) Leakage indicator for all monitored spaces
(6) Fire alarm display panel (on autonomous submersible)
(7) Safety and signalling system monitors
303. Control equipment
1. The control platform of the submersible is to be equipped to control at least the following:
(1) Pressure, temperature and humidity of the vehicle atmosphere plus the oxygen metering and air renewal rates
(2) Operation of propulsion plant
(3) Operation of the vertical and horizontal steering gears
(4) Blowing of diving and reserve-buoyancy tanks
(5) Operation of trimming and ballast systems
(6) Operation of freeing systems
(7) Operation of electricity supply
(8) Operation of ancillary systems, e.g. hydraulic units, manipulators etc.
2. After indication, control function should, wherever possible and expedient, be indicated by synoptic displays on suitable dead-front circuit diagrams on the control console or switchboard.