ISA500

The ISA500 utilises sonar technology to determine Altitude.  A broadband composite transducer together with an advanced digital acoustic engine provide the highest level of stability (to 1mm) and range (to 120 meters) available from a 500kHz underwater Altimeter.

With an optional integrated Pitch, Roll and Heading sensor, the ISA500 has the ability to output these values and also automatically compensate for pitch and roll – providing a true altitude reading at all times.

For applications where underwater Altitude, Pitch, Roll and Heading are required; all can be provided from a single device – providing a significant equipment cost saving opportunity.

The ISA500 is provided in a highly robust titanium housing depth rated to 4,000 meters or a Delrin® housing depth rated to 1,000 meters.  Both forward looking and right angled housing variants are available – providing distance measurement from the front or side of the ISA500 housing.

For applications where purely underwater Altitude or Distance measurements are required, the ISA500-L is available. The ISA500-L is based on the ISA500 platform, but is provided without Heading, Pitch, Roll or Temperature readings. A pure Altimeter.

The ISA500-OEM is also available, which offers an un-housed version of the ISA500 for integration into a third party housing or system.

Features
  • 120 Meter Range
  • 1 mm Acoustic Accuracy
  • Provides heading to +/- 1°
  • Pitch and roll readings, provides to 0,2° accuracy
  • Provides temperatures to 0,5° accuracy
  • Multi-Echo output
Applications
  • ROV & AUV Altitude, Heading & Attitude
  • Scour Monitoring
  • Hydro-graphic Survey
  • Touchdown Monitoring
  • Wave Height Measurement
  • Under Ice Measurement
  • Equipment Deployment
  • Motion Reference

Acoustic
Frequency
:
500kHz Standard400 to 600kHz Selectable
Range
:
0.1 to 120m(Maximum range dependant on seabed type)
Resolution
:
1mm
Beam Angle
:
6° conical at 500kHz
Signalling
:
Monotonic
Pulse Length
:
Auto/User Defined
Communications & Power
Digital
:
RS232 & RS485
Protocol
:
4,800 to 115,200 baud
Analogue
:
0 to 5V DC, 0 to 10V DC or 4-20mA
Data
:
Continuous or on demand
Data Rate
:
Up to 10Hz
Input Voltage
:
9 to 36V DC
Power (No Altitude)
:
25mA @ 24V DC
Power (With Altitude)*
:
51mA @ 24V DC
Heading
Accuracy
:
± 1°
Resolution
:
0.1°
Attitude
Pitch
:
± 90°
Roll
:
± 180°
Accuracy
:
0.2°
Resolution
:
0.1°
Temperature
Accuracy
:
0.5°
Resolution
:
0.1°
Physical
Weight (Air / Fresh Water)
:
0.5 / 0.325kg
Depth Rating
:
4,000m
Temperature
:
-10 to 40° operating
-20 to 50° storage
Connector
:
Subconn MCBH8M-SS other options available.
* 100% Tx power, 10Hz update rate.
Specifications subject to change in line with product enhancements.  Rev 2.0