NET MONITORING SYSTEM
Simrad PI32
Net monitoring system
for trawls and purse seines
ALWAYS AT THE FOREFRONT OF TECHNOLOGY
Simrad PI32 monitoring system for purse seine
and trawl nets
The Simrad PS30 Sensor is designed to withstand
the extreme forces the sensor encounters when
shooting and hauling a net.
Full control from setting to catch
Easy to operate
illuminated
keypad
Depth
Descent/ascent speed
By pressing
the WIN key
you can select
between 4 preselected display
modes either
manually or
automatically
Waterproof cabinet
front in polycarbonate and die
cast aluminum
casing with watertight connectors.
The cabinet can
be flush or bracket
mounted.
With a Simrad PI32 system you can get information about the
net’s depth, water temperature, bottom contact, net damage and
catch volume to suit your need for information. The signals from
the sensors are picked up by the hull mounted hydrophone or
from an over the side towed
hydrophone. The information
is displayed in large digits or
easy to understand graphics
on a compact display unit.
A shock absorbing, abrasive
resistant polyurethane is used
for moulding the Simrad PS30 sensor body. To further enhance
strength and avoid pit corrosion, the Simrad PS30 sensor
uses high-grade titanium for all metal parts. Titanium
is stronger than steel and does not corrode.
To increase visibility in subdued lighting, the
Simrad PS30 sensor is colored HyperYellow.
Echosounder - With a triducer installed,
the PI32 becomes a full function Simrad
EQ32 dual frequency color echosounder.
Temperature - Display with an alarm
function, set for increasing or decreasing
temperature.Temperature versus time can
be shown graphically on the display.
Navigation - A dedicated display
for position, heading and speed from an
external GPS navigator.
Robust, intelligent
and visible
Accurate purse seining with Simrad PI32...
Purse seining
NMEA INTERFACES
EXTERNAL ALARM
HYDROPHONE
OPTION:
TRANSDUCER
DEPTH
TEMPERATURE
SPEED
Purse seining with two depth sensors and
temperature sensor with depth indications
and sink rate in meter/minute. The water
temperature is indicated in the blue area.
Numeric graphic display with depth indications
and sink rate in meter/minute. The ground line
is passing through a thermo cline.
Danish seining with two depth sensors and a
bottom sensor. The net opening is eight meters.
Bottom contact or
not is indicated
on screen and with
an audio alarm.
Danish seining
The Simrad PI32 Net Monitoring system receives information
from up to three sensors at the same time. Any three of the depth,
temperature or the bottom contact sensors can be used at the
same time. The system uses a hull mounted- or over the side
hydrophone. The net’s depth, water temperature and the important
bottom contact information are displayed in large digits or in easy
to understand graphics on the compact display.
The Simrad PI32 is designed with different codes to avoid
interference between vessels operating close together. The small
size, quick update rate, long battery life and its long-range
capability, allows the Simrad PI32 Net Monitoring system to
be installed on any size net, from a small sardine net to a large
tuna net.The Simrad PI32 interfaces to the latest professional
Simrad echosounders and sonars.
A
Pelagic trawling
Three catch indicators are in use. Sensor 1 and
2 are triggered indicated in red. Sensor 3 is still
not activated.
Bottom trawling
Trawl system with depth, bottom and catch sensor.
The depth is 52.3 meters, the bottom sensor
indicates no bottom contact and the footrope has
been off bottom for 7 minutes. The catch sensor
has been activated for 19 minutes.
Effective trawling with Simrad PI32...
Simrad PI32 gives a new dimension to trawling where
new sensor design, combined with new signal processing
technology can achieve more efficient trawling.
You can choose from the variety of sensors to build the
trawl system that will give you the information required.
The PI32 catch sensor will indicate when a pre-determined
tonnage of fish is caught in the cod end. The bottom contact
sensor for trawlers is extremely important to help keep the
trawl on the bottom, to avoid fish escaping under the rollers.
For a pelagic trawl, the new bottom sensor will sound an
alarm when the foot rope is too close to the bottom.
The Simrad PS30 Sensor is designed to withstand
the extreme forces and the rough environment around
the rollers on a bottom trawl.
Pelagic system with depth, bottom and catch sensor.
The depth is 28 meters, no bottom contact and
the catch sensor is not triggered. The headrope is
indicated on the echosounder recording and the
trawl height is entered manually.
Flexible solution for your type of fishing
PURSE SEINING DANISH SEINING BOTTOM TRAWLING PELAGIC TRAWLING
• Depth sensor
• Bottom contact sensor
• Temperature sensor
• Depth sensor
• Bottom contact sensor
• Depth sensor
• Bottom contact sensor
• Rip sensor
• Catch sensor
• Depth sensor
• Bottom contact sensor
• Temperature sensor
• Rip sensor
• Catch sensor
• The depth sensor tells you the
right moment to start pursing,
helps you to purse at the right
speed, helps you avoid lifting
the net above the fish, measures
the sink rate and detects if the
net has stopped sinking.
• The bottom sensor prevents
you from hitting the bottom
and tearing the net, and helps
you catch fish close to the bottom.
• The temperature sensor reads
the water temperature and
detects when a thermo-cline
is passed.
• Watch the net sink towards
the bottom with the depth
sensor.
• Signals the right moment
to start hauling by watching
the depth and bottom sensor.
• Avoid lifting the net above
the bottom with a bottom
contact sensor.
• By using two depth sensors
you can accurately measure
the net opening.
• Watch the net sink towards
the bottom and adjust vessel
speed for maximum sink speed
using the depth sensor.
• By using two depth sensors,
the trawl opening will be accurately measured.
• The bottom sensor immediatly
alarms when the footrope lifts off
the bottom, letting the fish escape
under the footrope.
• The catch sensor alarms and
indicates when the trawl is
filled and ready to be hauled.
• The temperature sensor
prevents fishing in the wrong
temperature layer.
• The rip sensor tells you if
the trawl is damaged allowing
fish to escape.
• Watch the net sink using the
depth sensor and adjust the trawl
depth to where the fish are.
• By using two depth sensors,
the trawl opening will be accurately measured.
• The bottom sensor immediatly
alarms when the footrope is
too close to the bottom and helps
you to avoid tearing the net.
• The catch sensor alarms when
the trawl is filled and ready to
be hauled .
• The temperature sensor
prevents fishing in the wrong
temperature layer.
• The rip sensor tells you if
the trawl is damaged allowing
fish to escape.
The bottom contact sensor is
mounted on the ground line
of a purse seine. By adjusting
the length of the rope to the
weight you can set when the
bottom contact sensor should
give an alarm.
A pelagic trawl close to the
bottom. The length of the
sense chain determines how
close to the bottom the footrope
is allowed before you get a
bottom contact alarm.
A typical mounting of a bottom contact sensor on a trawl. The length
of the sense chain determines how far off the bottom the footrope should
be allowed before the alarm sounds.
The quick update rate gives an
immediate alarm when the net lifts off the bottom.
ROCKHOPPER
SENSE CHAIN
GROUND WEIGHT
STAY
Installed on the footrope on the bottom of a trawl, the bottom sensor will
immediatly indicate when the footrope is lifting off the bottom, letting the fish
gathered in the trawl opening escape under the trawl net. For a purse seine net
or a pelagic trawl, the bottom sensor will give an alarm when the bottom of
the net is within a preset distance from the bottom. The bottom sensor has an
easy to understand operation and is easy to rig on the net.
Note: Patent pending on bottom contact sensor system
SIMRAD MARKETING - 5.000 11.01
ALWAYS AT THE FOREFRONT OF TECHNOLOGY
Technical Specifications
The PI32 System units:
• Electronic unit with color LCD Display
• Hull mounted or portable hydrophone
• Up to 3 Sensors
• Battery charger
Simrad PI32
Power supply: 10 – 32 V DC
Power drain: 15 – 18 Watts
Environment:
0 to +50ºC,Waterproof (USC 46 CFR and IP 55)
Dimensions:
144x252x70 mm/1,5 kg (5,8x10x2,8"/3 Lbs)
Display: 5,5-inch 320x240 pixels TFT, power backlight
Interfacing:
1 port in/out NMEA 0183, 1 port in NMEA0183
Sensor receiver and display section
Frequency band:
43,5 – 49,5 kHz, multi - channel DSP - receiver.
Channels: 3 / 30
Numeric display:
3 sections, easy to read digital sensor data display
Graphic display:
Historic plot and digits showing actual sensor
data and net behaviour
Surface sea water temperature display
1)
:
Easy to read digital display with historic plot.
Status display:
Displaying sensor data, status and diagnostic tools
Alarms:
Both graphic and sound alarm for max or
min sensor data and surface temperature values.
Navigation section
2)
Position display: Ships position, speed,course and depth
Navigation display:Navigation highway with waypoints
and cross track error
Echosounder section
3)
Frequency: 50/200 kHz, user selectable
Output power: 500 W RMS
Depth range:
Up to 350 m at 200 kHz and 800 m at 50 kHz
Pulse length: 50 kHz:1 ms, 200 kHz: 0,25 – or 1 ms
Alarms: Fish, max and min depth
Zoom mode: Bottom and VRM expansion
Split screen: Depth and A – scope.Depth and
bottom expansion, depth and VRM expansion
Event marker: At current ping
Scroll speed: Adjustable or freeze
Signal threshold: User selectable on/off
Fish detection: White line discrimination
Surface sea water temp.:Transducer
1)
or NMEA
Ships speed through water:Transducer
4)
or NMEA
PS30 Sensor
Housing:
Shock absorbing and abrasive resistant Polyurethane
Corrosion resistance:
All metal parts made of high grade Titanium
to eliminate corrosion
Visibility:
Hyper yellow colored to maximise visibility
when submerged in sea water
Powe r: Rechargeable batteries, normal charge
Range:
~ 6 –700 meters, purse seine application
~ 1500 m, trawl application
Programming:
Field programmable functions and channel selection
Operational depth: 600 m
Dimensions: 245x172x123 mm
Weight in air/water: ~ 4.2/1.4 kg
Depth sensor
Measuring range D300: 0 – 290 m
Measuring range D600: 0 – 580 m
Accuracy: ± 0.25% of full scale
Update rate: ~ 4.5 sec
Operational life between charging: ~ 30 hours
Temperature sensor
Range: - 5oC to + 30oC (23oF to 86oF)
Accuracy: ±0.25
o
C (± 0.45oF)
Operational life between charging: ~ 30 hours
Bottom contact sensor
Monitoring physical bottom contact
of the foot rope
Adjustable measuring range
Update rate, field programmable:
Fast, Normal or Slow
Operational life between charging:
~ 60 hours
5)
Catch sensor / Rip sensor
Monitoring catch in the cod end
or rip in the net
Adjustable sensitivity
Update rate, field programmable:
Fast, Normal or Slow
Operational life between charging:
~ 2 – 3 weeks
6)
Hull mounted Hydrophone
Beam width, purse seine application:
90º horizontal, 30 º vertical
Beam width, trawl and Danish seine
application:
50º horizontal, 30 º vertical
Hydrophone cable: 25 m, diameter 6 mm
terminated with 7 pins female connector
Portable hydrophone
Omni directional (purse application)
or directional (trawl)
Hydrophone cable:
Strain resistant, 60 m length on cable reel
Battery charger
Input voltage: 220 or 110 V AC, 24 VDC
Charging: Constant current, 60 mA
Options
Remote display: DE30
Echosounder transducer
Stuffing tube, plastic
Stuffing tube, bronze
1) Requires an optional echosounder transducer
with temperature sensor
2) Requires an external GPS navigator
3) Requires an optional echosounder transducer
4) Requires an optional triducer
(depth, temperature and speed)
5) Update rate: Normal
6) Update rate: Slow
Note: Specifications subject to change without notice.
PI32 Control Unit
PS30 Sensor
PI30 Hydrophone
www.simrad.com
172 mm (6.7”)
252 mm (10”)
70 mm (2.8”)
123 mm (4.7”)
245 mm (9.5”)
144 mm (5.8”)
134 mm (5.2”)
110 mm (4.4 ”)
140 mm (5.6 ”)
74 mm
(2.9”)
72 mm (2.8”) 50 mm (2” )
75 mm (3 ”)
45 mm
(1.8 ”)
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