JFE-680

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Adjusting Receiver Sensitivity Select the step from 0 to 30. Pressing the (GAIN) + key increases sensitivity. Pressing the (GAIN) – key decreases sensitivity. If the receiver sensitivity is set too high, noise will also be displayed on the screen, making it difficult to distinguish the seabed. The seabed color should be orange, red or color between orange and red. Adjust the sensitivity to an appropriate value by monitoring the image being plotted on the screen. (See figure below) Increase sensitivity Good Decrease sensitivity Automatic Gain In the Automatic gain mode, the sensitivity is automatically adjusted. Press and hold both the (GAIN) + and – keys for three seconds. Once Automatic gain mode is selected, the text “GAIN:AUTO” will appear on the screen and LONG will be selected at STC function. The Automatic range mode is cancelled by pressing the (GAIN) + or – key. Note: 1. The Automatic gain mode can be set by a dedicated menu function. 2. Default setting of the automatic gain is 10 in the steps 0 to 20. 4. Operation 12
Selecting Display Mode Pressing the MODE key choose the display mode among STANDARD, HISTORY, and DOCKING. [Single frequency] Each press of the MODE key brings up the display mode as follows, “Standard mode, History mode, Docking mode.” [Dual frequency] Each press of the MODE key brings up the display mode as follows, “Single frequency standard mode (primary), Single frequency standard mode (secondary), Dual frequency standard mode, Single frequency history mode (primary), Single frequency history mode (secondary), Docking mode.” Adjusting Screen Visibility Use the Day/Night Vision to enhance the visibility of the screen depending in the surrounding light condition. Select day1, day2, night1, or night2. Note: The color be set by a dedicated menu function. Canceling the Buzzer Press the ACK key to cancel the depth alarm buzzer. 4. Operation 13
Page 1 and 2: JFE-680 Echo Sounder INSTRUCTION MA
Page 3 and 4: General Information Thank you for p
Page 5 and 6: Before You Begin Symbols Used In Th
Page 7 and 8: Do not damage, break or modify the
Page 9 and 10: Do not turn on the equipment's powe
Page 11 and 12: Contents General Information ......
Page 13 and 14: 1. Introduction 1.1 Function The JF
Page 15 and 16: 1.4 Construction Equipment Outline
Page 17 and 18: 1.5 System Configuration 1. Introdu
Page 19 and 20: 3. Display 3.1 Standard mode (dual
Page 21 and 22: 3.3 Docking mode 3. Display 9
Page 23: Setting Depth Range Each time you p
Page 27 and 28: Menu Tree 2 4. Operation 15
Page 29 and 30: Display Settings DISPLAY SCROLL SPE
Page 31 and 32: Initial Settings INITIAL MEMORY INT
Page 33 and 34: Setting Format for Depth Data Outpu
Page 35 and 36: Setting Output System Signal SYSTEM
Page 37 and 38: Panel Circuit Operation Check KEY U
Page 39 and 40: 5.3 Master Reset Executing Standard
Page 41 and 42: (3) Close the paper cover by pressi
Page 43 and 44: (1) Replacing Main Power Supply Fus
Page 45 and 46: 7. Installation When installing the
Page 47 and 48: Wall-Mounted Equipment Figure 3-2 7
Page 49 and 50: NKF-345 7. Installation 37
Page 51 and 52: 7.3 Connecting Components Notes: 1.
Page 53 and 54: 9. After-sales Service 9.1 When Req
Page 55 and 56: 11. Specifications Display 10.4 inc
Page 57 and 58: Actual Pictures Seabed Zero line DI
Page 59 and 60: Abrupt-Sloped Seabed Sidelobe False
Page 61 and 62: 7ZPNB0043 电子信息产品

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