User manual FURUNO MF-220 OPERATORS MANUAL

[. . . ] A heater can melt the equipment's power cord, which can cause fire or electrical shock. Use of a wrong fuse can result in damage to the equipment. MF-220 LH-3010 CAUTION Do not use the equipment for other than its intended purpose. Use of the equipment for other than its intended purpose may result in damage to the equipment or cause bodlily injury. Observe the following compass safe distances to prevent interference to a magnetic compass: Standard compass Steering compass 1. 55 m 2. 15 m 1. 00 m 1. 40 m i TABLE OF CONTENTS FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Before mounting any horn, you should test it with the HAIL feature with the horn in the desired location to check for suitability of mounting location. Connect horns to the Loud Hailer with cable type DPYC-1. 5 or equivalent. (See page 6 for how to fabricate this cable. ) Be sure the cable is suitable for all-weather use. The terminating point on the terminal is either FWD or AFT depending on the location of the speaker. Burglar alarm (local supply) The unit can function as a burglar alarm by connecting an external alarm sensor (local supply) to the ALRM terminals. When the sensor connected to the ALRM terminal becomes shorted and the alarm function is active, the yelp signal is released at maximum volume through both hailer horns. 77 Shield 8 Drain wire fabrication L* 15 7 Solder Drain wire 15 10 = 10. 1 mm 3 Armor Twist and cut 5 * Length long enough to reach ground terminal. Armor Sheath Shield Conductor S = 0. 75 mm 2 = 1. 11 mm TTYCS-1 Sectional view Vinyl tape Fabrication of cable TTYCS-1 7 1. What this means is that the heat sink ground is floating and will not ground batteries if they are connected to the ship's chassis. Use a stereo plug when connecting a 4 ohm speaker to the external speaker plug. Connect it as shown in the illustration below. Do not use for battery use for ship's earth only Stereo plug 2. Do not connect any of the output connectors on the rear panel to the ship's ground. SP outputs are floating and must not be connected to either battery or the rear panel. Release the PTT switch and the Loud Hailer will switch to the listening mode, using the speaker(s) as microphone(s). After speaking, press the [Hail Select] key to return to the standby mode. 13 2. OPERATION 2. 10 Sounding Warning Signals Your Loud Hailer has eight different warning signals: two manual and six automatic. The two manual signals, YELP and MAN, are designed to be sounded at each press of the PTT switch on the microphone. The six automatic signals are sounded when the [FUNC] key is operated. Only the horn speakers sound warning signals and the volume is automatically set to maximum when sounding warning signals. Description of warning signals Manual warning signals MAN: Signal for passing. The lengths and timing of the horn blasts are controlled by pressing the PTT switch on the microphone. YELP: Yelp type emergency siren. 500 Hz 250 Hz 1s Yelp signal Automatic warning signals UNWY: Warning signal for power-driven vessels underway. One 5-second blast at 120 second interval intervals. 5s 120 s Underway signal 14 2. OPERATION SAIL: Warning signal for sailboats, tug boats and tow boats underway. One 3-second blast, followed by one 2-second interval, one 1-second blast, one 2-second interval and one 1-second blast. Repeated every 120 seconds. 1s 2s 2s 3s 1s 120 s Sailing signal TOW: Warning signal for vessels under tow. [. . . ] Press and hold down the [Upper Signal Select] key until the YELP indicator flashes. Note that you may light the MAN indicator (with the [Lower Signal Select] key) instead of the YELP indicator. Press the [FUNC] key until the ALL, FWD, AFT and BOTH indicators light. After approximately five minutes, the ALL, FWD, AFT and BOTH indicators go off. [. . . ]