The “Norm” type telegraph has been designed to be used on board of all types of vessels having a remote controlled main engine or pitch propellor. The wheelhouse and engine room telegraphs are manufactured in two sizes: 192x192mm and 144x144mm, in accordance with DIN 43700. The instruments have a stainless steel housing and a non-reflective black finish. A watertight housing is available for wall mounting applications.
The telegraph systems are supplied with potential free contacts for data logging (order recorder) for each command as well as for telegraph alarm, power failure and station on service (if more then one receiver/transmitter is used)
The pointer telegraph is a communication system designed to send orders from the bridge or bridge annexes to the engine room or engine control room. Whenever a new command is being issued, the telegraph alarm will be switched on. In order to mute the alarm, the command must be acknowledged at the selected position by moving the control lever to the position requested. Precision potentiometers are used to transmit the orders. They are controlled by means of an operating lever equipped with either a knob or a cross lever. Servo motors are used for moving the pointers along the scales of the control units.
The system can be switched from telegraph mode to Remote Control (R.C.) mode by means of a single contact. In R.C. mode, the telegraph alarm section is disabled. The wheelhouse unit’s reply pointer is now connected to it’s own command lever. The R.C. mode is used to control the main engine directly from the wheelhouse by means of optional R.C. transmitters. Other possible options are:
The “Pushbutton” type telegraph has a row of up to 12 interlocked pushbuttons, mounted in an black anodized aluminium panel size 96x288mm. Each telegraph has a lamptest pushbutton, all lamps can be replaced from the top by removing an individual lamp cap. The bridge telegraph has a dimmer to control the lamp brightness. The audible alarm is generated by an internal buzzer. For those areas where a higher sound level is required, horns and gongs can be supplied.
The telegraph systems can be supplied with potential free contacts for data logging (order recorder) for each command as well as for telegraph alarm, power failure and station on service (if more then one receiver/transmitter is used). Orders are transmitted and replied by pressing the push-button engraved with the required order. If pressed, it remains locked in that position and automatically releases the push-button of the previous order. When an order is transmitted from the wheelhouse telegraph, the signal lamps inside the corresponding pushbuttons at all locations are flashing and the audible alarms are activated, giving an intermittent signal.