Seiwa SW RP05 Operating Instructions Manual

SW RP05

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . ….. . . ….. . . . . . 3

Specifications . . . . . . . . . . . . . . . . . ….. . . . …. . . . . . 4

Installation . . . . . . . . . . . . . . . . . . . . ….. . . . . …. . . . .5

Operation . . . . . . . . . . . . . . . . . . . . . . ….. . . . …. . . . .7

Key Functions . . . . . . . . . . . . . . . . . . . . …. …. . . . . . 7

Turning Alarms ON/OFF . . . . . . . . . . . . . …. . . . . . . 7

Backlight Intensity . . . . . . . . . . . . . . . . . . . …… . . . . 7

Selecting Feet, Meters, Fathoms . . . . . . . . ……. . . . . 7

Setting Shallow Alarm . . . . . . . . ……….……. . . . . . 8

Setting Deep Alarm . . . . . . . . . . . . …….………….. . 8

Setting Anchor Drag Alarm . . . . . . . . . ……....... . . . . 8

Setting Keel Offset . . . . . . . . . . ………. . . . . . …. . . . 9

Setting Display Damping . . . . . . . …. . . . . . . . . …. . . 9

Selecting NMEA 0183 or External Alarm Output . . . . 9

NMEA 0183 Sentence . . . . . . . . . . . . . . . . …….. . . . 10

Notes and Warnings . . . . . . . . . . . . . ……………. . . . 11

Other Seiwa Products . . . . . . . ……… . . . . . . . . 12

Introduction

The SW RP05 is a compact digital depth gauge. The SW RP05 uses
Digital Signal Processing (DSP) to reliably display water depth
from 1.2 to 1000 feet (0.3 to 365 Metres). Depth can be
displayed in feet, metres or fathoms. Variable display damping
is provided.
The SW RP05 has programmable shallow, deep and anchor drag
alarms built-in and can display the depth in feet, metres or
fathoms. A keel offset from -20.0 to +20.0 feet can be entered
so the SW RP05 shows the depth below the surface, below the keel
or below the transducer. Under 20 feet, Meters or Fathoms,
the depth is displayed in tenths.
The SW RP05 outputs NMEA 0183 serial data as a standard $SDDPT
(Depth below the transducer) sentence. If not required, the
NMEA 0183 data line can be programmed as an external alarm
output.
A separate backlight control wire turns the backlights on and
off. Five levels of backlighting (including OFF) can be
selected and all set-up, calibration constants and alarm values
are saved to non-volatile memory.
The SW RP05 works with a 120kHz depth transducer and both
through-hull and transom mount transducers are available.

Specifications

Power supply: 9.50 to 16.00 VDC, .037 amps nominal
Operating temperature: 32 to 122 F° ( 0 to 50 C°)
Size: 4.3" x 4.3” x 3.5” deep (110 x 110 x 89 mm deep).

Depth range: 1.2 to 1000 feet ( 0.3 to 365 Metres)
Resolution: 0.1 Feet, Meters or Fathoms below 20.0, full digits above 20
Keel offset adjust range: -20.0 to +20.0 feet
Alarms: Shallow depth alarm

Deep depth alarm
Anchor drag alarm
Display: 4 digit LCD
Feet, Metres and Fathoms icons
Alarm ON/OFF icons
5 levels of backlighting
External and internal ON/OFF control for backlights
Variable display damping

NMEA 0183 Out: $SDDPT, Depth below transducer

Installation

Before starting the installation, please read this entire section
first. Finger tighten the screws that mount the instrument
bracket - It is not necessary or recommended to use tools.

• Drill a 2-1/8" (55mm) mounting hole where you desire to

mount the instrument (Figure 1).

• Connect the various wires from Cable 1 and Cable 2 as

shown in Figures 2 and Figure 3.

• Carefully check all your wiring against figures 2 and 3 and

then mount the instrument in the hole. Use only finger
tension to tighten the bracket hold-down nuts.

Operation

Key Functions

The , , and keys are used to select what to display, set

backlight levels, turn alarms on/off, set alarms values, set/
change keel offset and display damping. New information is
automatically saved to non-volatile memory.

Turning Alarms ON/OFF

Press the key 1/2 second to turn alarms ON. The alarm icon
will light. Press the key 1/2 second to turn the alarms and

alarm icon OFF.

Backlight Intensity

Press the key 1/2 second to adjust the backlight level for
night viewing. Each time you press the key 1/2 second, the

level will get brighter 1, 2, 3, 4, OFF, 1, 2, ... etc. The blue
backlight ON/OFF control wire in cable #2 must be switched
to +12/24V for the backlights to work.

Selecting Feet, Metres or Fathoms:
While viewing the depth display quick press both the and

keys simultaneously. Each time you do this, the units will switch.

Setting Shallow Alarm:

Press and hold the key for ten (10) seconds until you hear

a long beep. The Shallow Depth Alarm value will be displayed.

Use the and keys to set the desired alarm value. Press the

key to save the shallow alarm value to memory.

Setting Deep Alarm:

Press and hold the key for ten (10) seconds. You will hear

a beep and the Deep Depth Alarm alarm value will be

displayed. Use the and keys to set the desired alarm
value. Press the key to save the deep depth alarm value

to memory.

Setting Anchor Drag Alarm:
After anchoring, set the shallow alarm a few feet more shallow
than the actual displayed depth. Similarly set the deep alarm
a few feet deeper than the actual displayed depth. Make
allowances for local tidal changes to prevent false alarms.

Setting Keel Offset:
While viewing Depth, press the and keys for ten (10) second

until you hear a long beep. The keel offset will be displayed. Use
the and keys to change the value and press the key to

save your entry. The keel offset will be added to the displayed
value of the depth. A negative keel offset is used to enable the
T91.05 to display depth below the keel or transducer. A positive
keel offset enables you to display actual water depth when the
transducer is placed below the surface level by up to 20 feet.

Setting Display Damping:

While viewing Depth press and hold the , and keys for

ten (10) seconds until you hear a long beep. The display damping

value is shown. Use the and keys to change the value and
press the key to save your entry. A larger value of damping

will slow down the flickering of the displayed digits but result in
a slower response to depth changes. The display damping limits
are 5 to 20 with 10 being the default value.

Selecting NMEA 0183 or External Alarm Output:
The NMEA 0183 serial data line can be programmed to
function as an external alarm output
To toggle the data line between NMEA 0183 and External

Alarm Output, press and hold down both the and keys

for 10 seconds (until you hear a long beep). The display will
briefly show "dAtA" / or "E-AL" to show you which mode is
selected. The new output mode is automatically saved to
memory. A 5V signal (10 mA Max.) is output whenever an
alarm condition exists and the alarms are enabled.

NMEA 0183 Sentence:
The SW RP05 outputs serial data of depth in NMEA 0183 format.
The sentence is output in the following format:

Depth: $SDDPT,xxx.x,yyy.y*CS
xxx.x = Depth in Metres yyy.y = Keel offset in Metres
*CS = Check Sum

Notes and Warnings:
a) The displayed depth should be used as a guide and cannot
always be relied on to be correct. Surface clutter, schools of
fish, air bubbles under the transducer caused by other boats,
thermoclines and high speed operation of your boat can cause
the depthsounder to mis-read.
b) A display of " - - - - " means the unit has not acquired or
is no longer able to track the bottom.

Other Seiwa Products

lIs possible to connect to SW RP05, to all the Seiwa multifunction chartplotters and use it for take the

deep value. Another equipment it's the:

 SW RP03 NMEA repeater