Navman FISH 4100 Installation And Operation Manual

Also see for FISH 4100: User manual

Navman FISH 4100 Installation And Operation Manual Manual pdf 7 page image

FISH 4100 Installation and Operation Manual NAVMAN 7Alarms can be enabled to automatically detect certainconditions, such as the water being too shallow. Thetrigger settings for the alarms can be defined to suitthe boat and individual preferences.The FISH 4100 has four alarms, TOO SHALLOW,TOO DEEP, FISH ALARM and LOW BATTERY.The FISH 4150 has two extra alarms, TEMP VALUEand TEMP RATE.The alarm symbols and beeper cycles for all of thealarms are shown in section 4-1. The FISH ALARMis three short beeps, the TOO SHALLOW ALARM isa rapid continuous beep while all others are a slowercontinuous beep.When an alarm condition is met, then:· the beeper sounds.· the ALARMS menu is displayed on thescreen with the activated alarm(s) flashing.Press any key to acknowledge the alarm, stop theSelect MAIN MENU - HISTORY to display theHISTORY screen.The HISTORY screen displays the most recentechoes on the right of the screen and the oldestechoes on the left. These eventually disappear offthe screen.The vertical bar on the right edge of the screen is thezoom bar. This shows the zoom range. To adjust thezoom range see section 3-4.3-1 ALARMS beeping and remove the ALARMS menu. This doesnot disable the alarm. The symbol will continue toflash until the alarm condition is no longer present.Alarms automatically re-enableThe TOO SHALLOW, TOO DEEP and LOWBATTERY alarms automatically re-enable when thevalue moves outside the alarm trigger setting.The TEMP VALUE alarm automatically re-enableswhen the temperature is more than 0.45°F (0.25°C)above or below the alarm trigger setting.The TEMP RATE alarm automatically re-enableswhen the rate of temperature change falls below thetrigger setting by more than 0.2°F (0.1°C) per minute.Enabling Alarms and Changing TriggerValuesSee section 4-1 for information about enabling alarmsand changing the trigger values.3-2 HISTORY screen operation the boat. This means that the HISTORY screendisplay moves across the screen more quickly thanwhen the boat is travelling in deep water. In deepwater, the echoes take longer to travel between theobjects and the boat, producing a display that movesacross the screen more slowly.Note 1: Different fish symbols can be selected (seesection 4-4).Note 2: The depth of bottom can be adjusted for keeloffset (see section 4-7).RangeRange is the depth of water displayed vertically. TheNAVMAN fishfinder has two range modes, AutoRange and Manual Range:· In Auto Range, the fishfinder adjusts the depthrange automatically so that the bottom is alwaysshown in the lower part of the screen. The useof Auto Range is recommended.· In Manual Range, the fishfinder shows only aselected depth range. In areas of rapidlychanging bottom depth, such as the sea flooraround pinnacles, it can be useful to preventthe screen from rescaling to always show thebottom. If the bottom is deeper than thespecified depth range, it will not be shown onthe display screen.To change the range mode, (see section 3-8).The HISTORY screen does not show a fixed distancetravelled by the boat; rather, it displays what haspassed below the boat during a certain period of time.The actual display depends upon the boat speed andthe depth of the water.As the boat travels through shallow water, the echoeshave less distance to travel between the objects andFish symbolwith depthSelected depth range42.75metres (0 to 150ft)AlarmsBottomZoom bar