Simrad PI BOTTOM CONTACT - DATASHEET REV A Manuel utilisateur

CATCH MONITORING

PI Bottom Contact sensor

MAXIMIZING YOUR PERFORMANCE AT SEA

www.simrad.com

Best at the bottom!

With patented technology and awardwinning design, Simrad

provides you full control of the actions that take place at the

bottom. Mounted on a bottom trawl, pelagic trawl or purse seine,

this sensor will provide the important information when you need

it!

The Bottom Contact sensor mounted on a bottom trawl will let you

know once the trawl lifts a few centimeters above the bottom. You

can then immediatley perform the necessary adjustments, and you

will not loose any catch.

On a purse seine you will be

notiﬁed once the seine reaches

the bottom, and you can thus

ﬁsh even on a rough bottom.

On a pleqgic trawl, the sensor

will notify you once you get

near the bottom.

Applications

(855-165189 / Rev.A / April 2005)

The Bottom Contact sensor will let you

know immediately if your gear touches

the bottom.

• Bottow trawl: If your trawl lifts off the bottom,

this may cause ﬁsh to escape, and hence reduce the

catch. This sensor will detect this, and allow you to

trim your equipment for perfect balance.

• Pelagic trawl: On a pelagic trawl, this sensor

proves very useful when the trawl moves

downwards. It will let you know immediately if the

footrope touches bottom.

• Purse seine: When you work with a purse seine,

you need to know when the seine reaches the

bottom. This sensor will let you know. once it

happens.

• Danish seine: Used on a Danish seine, the sensor

will let you know when the net has a stable bottom

contact, and when it is time to haul.

• Scientiﬁc research: During scientiﬁc surveys,

an exact deﬁnition of towed distance with proper

ground gear contact is an essential parameter

in bottom trawl swept area estimates of ﬁsh

Speciﬁcations

PI Systems: PI32, PI44 or PI54

Update rates:

• Fast: Every 3,2 second (approx.)

• Normal: Every 5,3 second (approx.)

• Slow: Every 33 second (approx.)

Default update rate: Normal

Lifetime between each recharge:

• Fast update rate: 26 hours

• Normal update rate: 40 hours

• Slow update rate: 175 hours

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

Physical properties:

• Length: 246 mm

• Width: 171 mm

• Thickness: 123 mm

• Weight in air: 4,6 kg (w/o chain & ground weight)

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: +47 33 03 40 00

Facsimile: +47 33 04 29 87

MAXIMIZING YOUR PERFORMANCE AT SEA

www.simrad.com

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