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Underwater Strain Transducer:
Compatible with PDI Connection Cable (dry connectors)
Waterproof to 100 meters for 1 week
Effective Gage Length: 76 mm standard
Size: 140 x 38 x 15 mm
Material: Aluminum frame, waterproof coating
Circuit: Full Wheatstone bridge
Cable: Custom length twisted shield pair 24 gauge
Nominal Sensitivity: 500 µε/mV/V
Strain Range: Nominally 3,000 µε (functional to 8,000 µε)
Shock Range: Nominally 5,000 g
Temperature Range: -40° (dry) to 120°C operating
Attachment Method: Bolts to pile
Connector standard PDI twist-lock connector for use with PDA (dry connectors)

Underwater Piezo Electric Transducer:
Compatible with PDI Connection Cable (dry connectors)
Encapsulated and waterproof to at least 50 meters for at least 1 month
Waterproof to 100 meters for 2 weeks
Mounting: Custom aluminum block (25 x 25 x 25 mm)
Material: Aluminum block, filled with waterproof material
Circuit: Piezo Electric Accelerometer
Cable: Custom length twisted shield pair 24 gauge
Sensitivity: Nominally 1.0 mV/g with 10 VDC bias voltage input
Range: 5,000 g (Limit 10,000 g)
Frequency Range: 0.25 to 7000 Hz (resonant freq: > 40 kHz)
Temperature Range: -40° (dry) to 120°C operating
Time Constant: Nominally >1s
Attachment Method: Bolts to pile
Connector is standard PDI twist-lock connector for use with PDA (dry connectors)

PDI Underwater Piezoresistive Accelerometer:
Model K:
Compatible with wired connection for used with PDA
model PAX or 8G Mounting: Inside custom aluminum
block (45 x 25 x 30 mm) Waterproof to 100 meters for 2
weeks
Connector: standard PDI twist-lock for use with PDA
(dry connector) Circuit: Piezoresistive bridge
Cable: Shielded, custom length
Sensitivity: Nominally 0.07 mV/g with 6.4 V.D.C. input Range: 10,000 g (Limit 20,000 g)
Frequency Range: DC to 4.5kHz
Temperature Range: -12° (dry) to 55°C
operating Attachment Method: Bolts to pile

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