Airmar Technology Corporation P79 User Manual

offered by Busse-Yachtshop.com - page 1
SECTION 1
Introduction
35 Meadowbrook Drive, Milford, New Hampshire 03055-4613 USA
Tel (603) 673-9570 • Fax (603) 673-4624 • e-mail: sales@airmar.com
AIRMAR
TECHNOLOGY CORPORATION
m 52
2000 #17-1205
P79 Adjustable
120 kHz, 200 kHz, 235 kHz, 50/200 kHz Dual Frequency
Patent Pending
Specifications
• Excellent high-speed performance to 60+ knots (69+ MPH) when mounted
well aft
• No thru-hull penetration
• Housing material is a chemically resistant, high impact, plastic alloy
• Design has shielded piezoceramic element for noise free echo
sounder display
• Superior acoustic sensitivity when using large PZT piezoceramics
• Standard Cable length: 1m (3.4’) pigtail with in-line connector off of
transducer; 6 m (22’) extension cable
• Weight: .9 kg ( 2 lb.)
Options
• Epoxy kit #33-156
• Protective base cap, which is especially useful for boat builders
Applications
• Fiberglass hulls
• Not suitable for wood hulls
• Planing hull powerboats
• Aluminum hulls less than 1/8" thick
New • IN-HULL MOUNT • Adjustable
Easily adjusts to any deadrise angle up to 22°
Transmits sound waves directly at the bottom so strong echoes are reflected
back to the transducer
Can be removed in seconds for servicing or storage
Only the base piece is bonded to the hull. There is no adhesive layer
under the transducer face to absorb sound energy
Simplifies in-hull installation
Note: See page m 1 for footnotes.
PERFORMANCE DATA
Frequency
1
– Airmar Piezoceramic Designator
2
120 kHz – C 200 kHz – G 235 kHz – D 50/200 kHz – A
Element Material
3
/Diameter (mm)
PZT/51 BT/51 BT/51 PZT/44
Beam Width at –3 dB
12° 8° 7° 45° 11°
Q (fr/∆ f @ –3 dB)
4
11 34 16 24 30
Rated RMS Power (W)
600 600 600 600 600
Voltage Responses: Transmit/Receive
5
(dB)
162/–179 167/–183 169/–185 153/–173 164/–182
Figure of Merit (Insertion Loss)
6
(dB)
–19 –17 –16 –33 –20
Unbalanced Impedance
7
:Resistance, Rp (ohm)
Capacitance, C p (pF)
350 320 370 250 350
2,460 2,710 2,440 3,870 1,900
Series Impedance [R – jX]
8
(ohm)
250 – j160 150 – j160 130 – j180 230 – j170 210 – j170
Acoustic Window Material
LPE
13
LPU
13
LPU
13
LPU
13

Airmar Technology Corporation P79 Specifications

General

Frequency	50/200 kHz
Beamwidth	45°/12°
Power	600 W
Mounting Style	In-hull
Beamwidth 50kHz	45°
Power Handling	600 W
Cable Length	10 m
Depth Capability	Up to 800 ft
Depth Rating	1000m
Operating Temperature	-5°C to +40°C

Summary

Specifications

High-Speed Performance

Excellent high-speed performance up to 60+ knots (69+ MPH) when mounted well aft.

No Thru-Hull Penetration

Unit does not require any holes drilled through the hull, simplifying installation.

Durable Housing Material

Constructed from a chemically resistant, high impact, plastic alloy for longevity.

Shielded Piezoceramic Element

Design features a shielded element for noise-free echo sounder display.

Superior Acoustic Sensitivity

Utilizes large PZT piezoceramics for enhanced acoustic performance.

Standard Cable Length

Includes a 1m (3.4') pigtail with in-line connector and a 6m (22') extension cable.

Weight

The unit weighs 9 kg (2 lb.).

Options

Epoxy Kit

Optional epoxy kit available for installation (Part #33-156).

Protective Base Cap

A protective cap for the base, especially useful for boat builders.

Applications

Fiberglass Hulls

Suitable for installation in fiberglass hulls.

Planing Hull Powerboats

Designed for use with planing hull powerboats.

Aluminum Hulls

Applicable to aluminum hulls with a thickness less than 1/8".

Installation Steps

Select Location and Measure Deadrise

Choose installation spot, measure deadrise angle, and mark a guideline on the hull.

Adhere Base and Mount Transducer

Attach base to hull, align transducer with locking ring, and secure with screws.

Lubricate and Seat Transducer

Lubricate O-ring, slide onto assembly, add liquid to base, and seat transducer firmly.