Benthowave Instrument Inc.

BENTHOWAVE INSTRUMENT INC. Acoustic Transducer & System 

Underwater Pingers

Underwater BeaconsPinger and TransponderPingers and TranspondersPingers and Transponders

BII-8060    Underwater Pingers

BII-8061 and BII-8062 are 25 to 40kHz broadband acoustic transmitters for use in communication, beaconing (pingers), pilot sound source and artificial acoustic target. These components are ready for you to implement underwater communication and develop the unique and proprietary pingers.

Beacons Additional Devices, not included in BII-8060 series. Features
BII-8061 DC power supply, signal generator. flexible, reusable and reconfigurable pingers.
BII-8062 DC power supply. customized pingers, customized BII-4000 embedded inside.

Installation Features
Thru-hole Mounting easy installation on underwater devices (Robots, AUVs, UUVs, Mooring, Towed Fish, Gliders, etc...)
Bolt Fastening Mounting  easy installation on supportive fixtures and makes the on-boat field use/setup easy, quick and simple.
Free-hanging dipped beaconing configuration and makes the on-boat field use/setup easy, quick and simple.
Application Features Related Products
Pingers & Transponders
Communication & Positioning
Pilot Sound Sources
Artificial Acoustic Target
Omni Directivity
Analog/Digital Communication
Single DC Supply, Low Power Mode
BII-4000 Signal Generation


DC Supply Voltage: +19 VDC
Input Signal Level: 2 Vpp (BII-8061 ONLY)
Operating Frequency: 15 kHz to 45 kHz
Duty Cycle of Pulse Input Signal: 5%
Digital Signal of Shut Down: 0 VDC to Vcc
Warning: Operating BII-8060 series with parameters exceeding ABSOLUTE MAXIMUM RATINGS shall destroy the devices permanently.
BII-8060 BII-8061 (pinger application) BII-8062 (pinger application)
Frequency: 25 to 40 kHz 25 to 40 kHz
Acoustic Output: 180 ± 2 dB re μPa @1m 180 ± 2 dB re μPa @1m
Signal Type: Pulse/Burst SINE, Chirp/FM, FSK and PSK, etc. Pulse/Burst SINE, Chirp/FM, FSK, etc.
Built-in Signal Generator: No BII-4000 Series Signal Generator, Built-in, Customized.
Suggested Pulse Length: ≤ 100 mS ≤ 100 mS, Specify when ordering with BII-4000 Series.
Duty Cycle: ≤ 1% ≤ 1%, Specify when ordering with BII-4000 Series.
Suggested Pulse Repetition: ≤ 2 pulse/second ≤ 2 pulse/second, Specify when ordering with BII-4000 Series.
Signal Level: ≤ 1Vpp N/A
Input Impedance: 60 kΩ N/A
Weight in Air: 0.87 kg 0.9 kg
Dimensions: Diameter: 48mm, Length: 120mm Diameter: 48/60mm, Length: 140mm
Current (Quiescent): Shut down: 10 μA
Operating: 100 mA
Shut down: 1 mA
Operating: 101 mA
Power Supply Vcc: +8 to +18 VDC
Suggested DC Supply:
(Not Included)
Two 9V Alkaline/Lithium Batteries; Marine/Automobile Battery; Fixed DC Linear Power Supply; Not Included.
DO NOT use variable power supply whose maximum supply voltage is higher than the above rated voltage.
DO NOT use switching mode DC power supply.
Depth Rating: 300m
Shut-down Control: Specify when ordering
1. Manual Shutdown (default)
    Open: Operating
    Short to Common: Shut down
    Switch, relay, optocoupler etc. can also be used for "connecting" and "disconnecting", and voltage protection
    rating of these "switch" devices must be greater than power supply voltage level.

2. Digital Output
    TTL/CMOS Compatible: Logic Low: 0 to 0.8V; Logic High: 3.5 to Vcc (Vcc: Power Supply Voltage).
    Logic High: Operating
    Logic Low: Shut Down
    Voltage protection rating of Digital Output must be greater than power supply voltage level.
Mounting Options: 1. Default: Free Hanging (FH)
2. Thru-hole Mounting with Single O-ring (THSO)
3. Thru-hole Mounting with Double O-ring (THDO)
4. Bolt Fastening Mounting (Stainless Steel): (BFMSS)
5. End-face Mounting:  (EFM)
6. Thru-hole Mounting + Free Hanging (THMFH)
Click Transducer and Hydrophone Mounting for more detailed information on mounting/installation.
Cables Shielded cable
Default: 10m cable
Custom length: up to 100m
Connectors: 1. Default: Wire Leads
2. Underwater Mateable Connector
3. MIL-5015 Style
4. Custom
BII-8061 Wiring      
Signal Type Wire Leads Underwater Connector MIL-5015 Connector
Power Supply, +VDC Red Pin 3 Pin C
Power Supply, Common Black Pin 1 Pin A
Signal White Pin 2 Pin B
Shut Down Green/Blue Pin 4 Pin D
Grounding Shielded Pin 1 Pin A
BII-8062 Wiring      
Signal Type Wire Leads Underwater Connector MIL-5015 Connector
Power Supply, +VDC Red Pin 3 Pin C
Power Supply, Common Black Pin 1 Pin A
N/A N/A Pin 2 Not Used Pin B Not Used
Shut Down Green Pin 4 Pin D
Grounding Shield Pin 1 Pin A
BII-8060 Troubleshooting
Issue No Sound Generation
Possible Reasons 1. Shut-down wire is short to common, shield or digital low.
2. After shutting down, shut-down wire is not away/off common fast enough. or, rise edge from digital low to high is not sharp enough.
Solutions Connect shut-down wire to common, then move away as fast as possible, or improve the rise edge of digital low to high.

Typical Components of BII-8061 and BII-8062

Underwater PingersUnderwater Pingers

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