Seiwa SW RP05 User manual

SW RP05

Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . ….. . . ….. . . . . . 3
Specifications . . . . . . . . . . . . . . . . . ….. . . . …. . . . . . 4
Installation . . . . . . . . . . . . . . . . . . . . ….. . . . . …. . . . .5
Operation . . . . . . . . . . . . . . . . . . . . . . ….. . . . …. . . . .7
Key Functions . . . . . . . . . . . . . . . . . . . . …. …. . . . . . 7
Turning Alarms O /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 MEA 0183 or External Alarm Output . . . . 9
MEA 0183 Sentence . . . . . . . . . . . . . . . . …….. . . . 10
otes 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 MEA 0183 serial data as a standard $SDDPT
(Depth below the transducer) sentence. If not required, the
MEA 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
eel 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 O /OFF icons
5 levels of backlighting
External and internal O /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. ew information is
automatically saved to non-volatile memory.
Turning Alarms O /OFF
Press the key 1/2 second to turn alarms O . 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 O /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 MEA 0183 or External Alarm Output:
The MEA 0183 serial data line can be programmed to
function as an external alarm output
To toggle the data line between MEA 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.
MEA 0183 Sentence:
The SW RP05 outputs serial data of depth in MEA 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
otes 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 MEA repeater