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Underwater Monitoring

Underwater Monitoring – Hydrophone
HydophoneAdvances in explosives technology and underwater blasting have allowed explosives engineers to extend blast design limits while minimizing the impact to sensitive structures and delicate underwater environments. Coupled with increased worldwide regulatory requirements, this has resulted in an associated increase in the need to monitor transient overpressure in water.

In order to obtain accurate overpressure information in water you need to have the right tools. Instantel® Minimate Pro4™ or Minimate Pro6™ tomonitor, in conjunction with the high-pressure Instantel Hydrophone (8 to 500 psi) sensor is the system of choice for underwater monitoring. Sample rate is always a concern, because damaging high-pressure waves are often of very short duration; the peak pressure can be missed when monitoring using a conventional sample rate (1,024 Hz). Instantel provides extended sample rates up to 65,000 Hz, so you can be more confident in the data you record.

Contact your Instantel Dealer for more information and assistance in selecting the monitoring unit and sensors that best meet your monitoring application requirements.



Recommended Products for Underwater Monitoring:

  • Minimate Pro6
  • Minimate Pro4

Minimate Pro6 Highlights

Key Features Ethernet® interface when connected directly to the unit (Auto Call Home is not supported over the Ethernet)
Auto Call Home™ remote monitoring function
Cast aluminum case
Water resistant to IPC67 – submerse to 30 cm (1 ft.) for 24 hours
Compliant to CE Class B - Meets or exceeds RF and EMI requirements
Sensor Check for automatic error checking
View Minimate Pro6 with 2 Geophones

View Minimate Pro6 with Microphone and Geophone
6 Channels Microphone and Triaxial Geophone or two Triaxial Geophones
Available Memory 7,100 plus events
Record Modes Manual, Continuous, Histogram, Instantel Histogram Combo, and VDV - Vibration Dose Value (optional)
Available Sample Rates 512 to 65,536 S/s per channel
Unit Dimensions 254 X 117 X 108 mm (10.0 X 4.6 X 4.25 in)
Unit Weight 2.27 kg (5 lbs)
User Interface 10 domed tactile keys
Product Rank Premium

Minimate Pro4 Highlights

Key Features Ethernet® interface when connected directly to the unit
(Auto Call Home is not supported over the Ethernet)
Auto Call Home™ remote monitoring function
Cast aluminum case
Water resistant to IPC67 – submerse to 30 cm (1 ft.) for 24 hours
Compliant to CE Class B - Meets or exceeds RF and EMI requirements
Sensor Check for automatic error checking
View Minimate Pro4
4 Channels Microphone and Triaxial Geophone
Available Memory 8,000 plus events
Record Modes Manual, Continuous, Histogram, Instantel Histogram Combo, and VDV - Vibration Dose Value (optional)
Available Sample Rates 512 to 65,536 S/s per channel
Unit Dimensions 254 X 117 X 108 mm (10.0 X 4.6 X 4.25 in)
Unit Weight 2.27 kg (5 lbs)
User Interface 10 domed tactile keys
Product Rank Premium

Minimate Plus Highlights

Key Features Most versatile monitor available
Auto Call Home™ remote monitoring function
Wide variety of sensors – microphones, geophones, accelerometers, and hydrophones
View Minimate Plus

View Minimate Plus with Flex
4 Channels Microphone and Triaxial Geophone
8 Channels Two Microphones and two Triaxial Geophones or 8 independent channels
Available Memory 300 events
Record Modes Manual, Single-shot, Continuous, Histogram, and Instantel® Histogram Combo
Available Sample Rates 1,024 S/s to 16,384 S/s per channel, selectable up to 65,536 S/s for 8 channels
Unit Dimensions 81 X 91 X 160 mm (3.2 X 3.6 X 6.3 in)
Unit Weight 1.4kg (3lbs)
User Interface 8 domed tactile keys
Product Rank Mid-range
309 Legget Drive, Ottawa, Ontario, Canada, K2K 3A3