User's Manual

SECTION 1
Introduction
35 Meadowbrook Drive, Milford, New Hampshire 03055-4613 USA
Tel [phone] • Fax [phone] • e-mail: [e-mail]
AIRMAR
TECHNOLOGY CORPORATION
m 42
2000 #17-1205
P66 with Noise Suppression System
50 kHz, 120 kHz, 200 kHz, 235 kHz,
50/200 kHz Dual Frequency
U.S. Patent No. 4,644,787
U.S. Patent No. 5,606,253
U.S. Patent No. 5,719,824
New •TRANSOM MOUNT • Depth • Speed • Temperature
Specifications
• Hydrodynamic shape provides vertical sound beam orientation on hull deadrise angles up to 30°
• Reversible wedge allows mounting to transom angles from 2° to 22°
• Integral release bracket protects against impact damage, mounts with 3 screws, and provides 12
mm (
1
⁄
2
") of vertical adjustment
• Chemical and impact resistant plastic housing
• Designed to meet CE requirements
• Shielded piezoceramic element for noise free echosounder display
• Paddlewheel assembly easily removed for inspection, cleaning,
and replacement
• Unitary bearings inside paddlewheel hub assure exact alignment
and minimal rotational friction
• Standard cable length: 7.6 m (25')
• Weight: 0.5 kg (1.1 lb.)
Speed Sensor Specifications
• Linearity: Refer to Airmar Technical Data Catalog
• Standard pulse rate: 26,000 pulses per nautical mile (7.25 Hz per knot)
Options
• Speed and/or temperature sensor
• Waterproof molded connector
Applications
• Small, general purpose echosounders/fishfinders
• Outboard, inboard/outboard or jet boats
• Fiberglass, aluminum, wood or inflatable hulls
Accessories and Replacement Parts
• Paddlewheel kit# 33-346-01
•
Features Airmar’s patented Noise Suppression System
Best performing transom mount
Streamlined rounded nose provides excel-
lent echosounding at high boat speed
Unique bracket design allows transducer
removal for storage and transport
70 mm
[2.77”]
99 mm
[3.90”]
135 mm
[5.30”]
P66
P66
Note: See page m 1 for footnotes.
PERFORMANCE DATA
Frequency
1
– Airmar Piezoceramic Designator
2
50 kHz – C 120 kHz – C 200 kHz – G 235kHz – D 50/200 kHz – A
Element Material
3
/Diameter (mm)
PZT/ L/51 PZT/ 51 BT/ 51 BT/ 51 PZT/ 44
Beam Width at –3 dB
44° 13° 8° 7° 45° 11°
Q (fr/∆ f @ –3 dB)
4
15 16 34 16 24 30
Rated RMS Power (W)
600 600 600 600 600 600
Voltage Responses: Transmit/Receive
5
(dB)
156/–176 165/–176 167/–183 169/–185 153/–173 164/–182
Figure of Merit (Insertion Loss)
6
(dB)
–26 -18 –17 –16 –33 –20
Unbalanced Impedance
7
: Resistance, Rp (ohm)
Capacitance, C p (pF)
300 1,910 320 370 250 350
4,970 1,910 2,710 2,440 3,870 1,900
Series Impedance [R – jX]
8
(ohm)
250 – j120 190 – j50 150 – j160 130 – j180 230 – j70 210 – j170
Acoustic Window Material
LPU
13
LPU
13
LPU
13
LPU
13
LPU
13