Simrad PI REMOTE, PI SPREAD QUICK REFERENCE GUIDE

CATCH MONITORING

PI Spread and Remote sensors

M A X I M I Z I N G Y O U R P E R F O R M A N C E A T S E A

www.simrad.com

Check the trawl doors!

This dynamic duo tells you the exact

distance between the trawl doors.

Used on bottom and pelagic trawls the

Spread and Remote sensors provide

crucial information about your trawl

behaviour. On a twin trawl, simply add

a Remote sensor and you have both

openings covered!

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12

S3 [m]

69.5

Applications

(855-165198 / Rev.A / April 2005)

Specifications

PI Systems: PI32, PI44 or PI54

Update rates:

• Fast: Every 5,5 second (approx.)

• Normal: Every 14 second (approx.)

• Slow: Every 34 second (approx.)

Default update rate: Fast

Lifetime between each recharge:

• Fast update rate: 45 hours

• Normal update rate: 100 hours

• Slow update rate: 150 hours

Communication frequency range: 43,5 to 49,5 kHz

Accuracy: 0,2 %

Maximum range: 350 meters

Physical properties (Spread/Remote):

• Length: 298 / 248 mm

• Width: 149 / 121 mm

• Thickness: 120 / 98 mm

• Weight in water: 2,7 / 1,3 kg

• Weight in air: 5,7 / 2,9 kg

Charging time with PI Charger:

• To 70% capacity: 1 hour

• To 100% capacity: 4 hours

Charging time with PS Charger:

• To 100% capacity: 16 hours

Specifications can be altered without prior notification.

Simrad Horten AS

Strandpromenaden 50
P.O.Box 111
NO-3191 Horten

Norway
Telephone: [phone]
Facsimile: [phone]

M A X I M I Z I N G Y O U R P E R F O R M A N C E A T S E A

www.simrad.com

These two sensors always work in pairs.

They are used to monitor the physical

distance between the trawl doors during

bottom and pelagic trawling.

Use a Spread sensor on the port door and a

Remote sensor on the starboard door. Both sensors

are normally mounted in special adapters, but you

may also attached them to the wing-end or warp

using snap hooks or rope.

The Spread sensor communicates with the Remote

sensor using a special transverse communication link.

By means of this link it measures the excact distance

(maximum 350 meters) between the two sensors.

The information is is transmitted to the vessel by the

Spread sensor.

As you already know, correct door spread is

important in order to obtain the correct sweep-angle,

as this ensures optimal trawl performance. Door

behavior and stability during shooting and towing is

also monitored by these sensors. Many regard this

pair of sensors one of the most important sensors to

obtain efficient trawling.