Furuno 525STID-MSD, 525ST-MSC, 525ST-MSC7 User Manual

New • THRU-HULL • Depth • Speed • Temperature

B744V, B744VL,SS544V, B66V, B66VL

50 kHz,120 kHz, 120 kHz Dual Beam,

150 kHz, 170 kHz, 200 kHz, 235 kHz, 50/200 kHz Dual Frequency,

50 kHz & 200 kHz Dual Frequency

U.S. Patent No. 4,898,029

U.S. Patent No. 5,186,050 Canadian Patent No. 1,313,775 Australian Patent No. 605,281 Japanese Patent No. 1851014

Airmar TRIDUCER multisensors incorporate a revolutionary self-closing valve to minimize water flow into the boat when the paddlewheel insert is removed. “Gushers” are eliminated with this simple to maintain valve.

Fins provide on either side of the paddlewheel for more accurate speed measurement in cross-flow conditions.

Combined with our fairing, installation is made simple. Made of urethane, the fairing will never swell or rot, and the unique cutting guide allows safer, more accurate cutting with a band saw. High speed fairings are provided with a corrosion resistant bolt to secure the fairing and prevent rotation.

B66V B66VL

SS544V

B744V

The Latest Evolution in TRIDUCER

Multisensor Technology

Self-closing valve...checks water flow when paddlewheel insert is removed New B744V and long stem B744VL offer flush mounting in streamlined fairings

and accommodate ceramics up to 44 mm (1.75") in diameter including the popular 50/200 kHz model

SS544 includes a streamlined fairing and is designed specifically for isolated mounting to steel and aluminum hulls. It accommodates ceramics up to 44 mm (1.75") in diameter

New streamlined fairings for B744V, B744VL, and SS544V provide much improved echosounding at speeds above 20 knots and greatly reduce drag

Versatile B66V and long stem B66VL mounts frequencies varying from 50 kHz to 200 kHz including dual beam 120 kHz and dual element 50 kHz & 200 kHz

Optional paddlewheel-less speed/temperature sensor uses echo correlation technology

Specifications

•Hall-effect device senses paddlewheel rotation

•Unitary paddlewheel bearing assures exact alignment and minimal rotational friction

•Corrosion-proof shaft for long life in saltwater

•Alignment key for easy speed/temperature assembly removal and insertion in difficult access locations

•Replaceable valve assembly

•Polished paddlewheel shaft for quick start up

•Surge and reverse polarity protection

•Shielded cable to minimize noise pick-up and emission

•Designed to meet CE requirements

•Dual O-rings for superior sealing

•Retaining pin and safety chain secures paddlewheel and plug inserts

•Installation requires a 51mm (2") diameter hole

•Fairing is supplied standard with SS544V

•Blanking plug included

•Standard cable length: 10 m (33')

•Weight:

B744V	2.5 kg (5.5 lb.)
B744VL	2.6 kg (6.4 lb.)
SS544V	3.1 kg (6.8 lb..)
B66V	2.7 kg (6.0 lb.)
B66VL	3.1 kg (6.8 lb.)

Options

AIRMAR

TECHNOLOGY CORPORATION

•Two wire speed sensor circuit

•Thermistor or semiconductor temperature sensor

•Urethane fairing

B744V, B744VL: High speed #33-353-01

B66V, B66VL: Standard #33-029

•Pulse division circuitry or other pulse rates

•CS4500 correlation speed/temperature insert

35 Meadowbrook Drive, Milford, New Hampshire 03055-4613 USA Tel [phone] • Fax [phone] • e-mail: [e-mail]

m 12	2000 #17-1205

New • THRU-HULL MOUNT • Depth • Speed • Temperature

Applications

• Fiberglass or wood hulls only

Notes

•Replaces B44, B50, B55, and B56 models

•For Parts and Accessories see pages p2 through p4

Single Connector/

Dual Connector Systems

The piezoceramic element, speed, and temperature circuitry are all within the bronze housing. The removable paddlewheel insert contains no circuitry. The magnetic field sensor to measure speed is mounted in the housing in close proximity to the rotating paddlewheel. A single connector system is generally used when depth, speed, and temperature will be processed in a single instrument or when two instruments are within 1m (40") of each other. When depth and speed/temperature functions will be processed in separate instruments, our cable can be split and two connectors can be applied.

All signals are transmitted via a multi-conductor cable with a high quality thermoplastic rubber jacket for improved resistance to cutting, pinching, and degradation from petroleum distillates. C144 cable is used in single element TRIDUCER multisensors. Dual element multisensors use C145 cable.

Hull Thickness Limits

Model	Minimum			Maximum
B744V with fairing	—			26 mm (1")
without fairing	6 mm (1⁄ ")			72 mm (2	7⁄	")
		4			8
B744VL with fairing	6 mm (1⁄ ")			87 mm (3	3⁄	")
		4			4
without fairing	35 mm (1	3⁄	")	133 mm (5	1⁄		")
		8			4
SS544V with fairing	—			14 mm (1⁄ ")
					2
B66V with fairing	—			25 mm (1”)
without fairing	6 mm (1⁄ ")			70 mm (2	3⁄	")
		4			4
B66VL with fairing	30 mm (1	1⁄	")	87 mm (3	3⁄	")
		8			4
without fairing	70 mm (2	3⁄	")	133 mm (5	1⁄		")
		4			4

Speed

The TRIDUCER multisensor provides accurate speed measurement over the widest boat speed range of any thru-hull paddlewheel transducer.

The combination of a hydrodynamic paddlewheel and paddlewheel cavity, housing and fairing projection through the boundary layer and fins on either side of the paddlewheel gives an unmatched linearity.

		Specifications1
	Speed range2		1–44 knots (1–50 MPH)
	Linearity		Refer to Airmar Technical Data Catalog
	Pulse rate (B744V,B744VL,SS544V)		19,000 ppnm3 (5.7 Hz/knot) with high speed fairing
			21,500 ppnm3 (6.0 Hz/knot) without fairing
	Pulse rate (B66V, B66VL)		21,500 ppnm3 (6.0 Hz/knot) with standard fairing
			21,500 ppnm3 (6.0 Hz/knot) without fairing
	Supply voltage		5–25 VDC
	Supply current: “OFF”		2.3 mA
	“ON”		8 mA at 5 VDC
	Circuitry: standard		3 wire format
	optional		2 wire format
	Unicurve® type thermistor		10,000 ohms

1.Refer to “Sensor Design Fundementals” for more detailed information.

2.Requires correction for non-linearity below 3 knots (3MPH).

3.ppnm = pulses per natical mile.

Temperature

Various temperature sensing devices can be incorporated in the housing including thermistor and semiconductor types. See the “Temperature” section for more detailed information including thermal time constants.

Shielding

Inside the TRIDUCER multisensor housing, shielding is used to eliminate interference between the speed and depth sensors. A shielded cable and separately shielded speed and temperature conductors are used to prevent mutual interference. The bronze housing also functions as a shield. Refer to wiring diagram beginning on p 35 for shielding details.

35 Meadowbrook Drive, Milford, New Hampshire 03055-4613 USA Tel [phone] • Fax [phone] • e-mail: [e-mail]

AIRMAR

TECHNOLOGY CORPORATION

2000 #17-1205	m 13

New • THRU-HULL • Depth • Speed • Temperature

B744V, B744VL		SS544V
High-speed		High-speed
Fairing		Fairing

B744V
B744V top and side view
79 mm		64 mm
[3.13”]		[2.50"]
		134 mm
2”-12 un		[5.27"]
threads		51 mm
		[2.00”]
	140 mm	27 mm
		[1.05"]
	[5.50"]
AIRMAR

TECHNOLOGY CORPORATION

			SS544V
	B744VL top and side view
			SS544V top and side view
		64 mm	79 mm
		[2.50"]	[3.13”]
			79 mm	60 mm
			[3.13”]	[2.38"]
	2”-12 un
	threads
			201 mm
			[7.91"]
	51 mm		2”-12 un	121 mm
		27 mm		[4.77"]
	[2.00”]
		[1.05"]	threads	51 mm
				[2.00”]
	140 mm		130 mm	28 mm
	[5.50"]
			[5.11"]	[1.11"]

35 Meadowbrook Drive, Milford, New Hampshire 03055-4613 USA Tel [phone] • Fax [phone] • e-mail: [e-mail]

m 14	2000 #17-1205