Furuno GP-1870F, Operator'S Manual

Page: 156 / 209

13. INSTALLATION
13-8
6) Rotate the RotoKey
™
to select [200kHz ECHO OFFSET] and [+20].
7) Rotate the RotoKey
™
to select [50kHz BOTTOM LEVEL] and [-60].
8) Rotate the RotoKey
™
to select [200kHz BOTTOM LEVEL] and [-60].
9) Press the ESC/MENU key three times.
13.3.4 Triducer
DO NOT overtighten screws, to prevent damage to the transducer.
525STID-MSD
The optional triducer 525STID-MSD is designed for thru-hull mounting.
525STID-PWD
The optional transom mount triducer 525STID-PWD can be installed by the thru-hull
method or the inside-hull method.
Pre-test for speed and temperature
Connect the sensor to the instrument and spin the paddlewheel. Check for a speed
reading and the approximate air temperature. If there is no reading, return the sensor
to your place of purchase.
Tools and materials required
• Scissors • Masking tape
• Safety goggles • Dust mask
• Electric drill • Screwdrivers
• Drill bit:
For bracket holes: 4 mm, #23, or 9/64”
For fiberglass hull: chamfer bit (preferred),
6 mm, or 1/4”
For transom hole: 9 mm or 3/4” (optional)
For cable clamp holes: 3 mm or 1/8”
ø79
133
2.00"-12 UN
threads
ø51
7
27 140
Unit: mm
BOW