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© Valeport Limited
2
SPECIFICATIONS
2.1
ACOUSTIC
State of the art signal processing technology provides stable, repeatable readings while
allowing the range to be extended to unrivalled distances for a 500kHz altimeter.
Type:
Range:
Resolution:
Beam Angle:
2.2
PRESSURE
The optional pressure sensor fitted to the Altimeter is a temperature compensated piezo-
resistive sensor, which delivers the performance previously only available from a resonant
quartz sensor at a more cost-effective price.
Type:
Range:
Accuracy:
Resolution:
2.3
DATA ACQUISITION
Sampling:
Data Rate:
2.4
COMMUNICATIONS
RS485 is enabled by grounding a pin in the communications lead, See section 6
Digital Output:
Protocol:
Formats:
Analogue output:
2.5
POWER REQUIREMENTS
Input:
9 - 28vDC (isolated power supply)
Power:
<125 mA @ 12V
2.6
PHYSICAL
Housing:
Size:
Weight:
Connector:
VA500 Altimeter Manual
500 kHz broadband transducer
0.1m – 100m
1mm
±3
Temperature compensated piezo-resistive
10, 30, 100, 300 or 600 Bar
±0.01% FS
0.001% FS
Continuous or data on demand (by serial command/TTL trigger).
1, 2, 4 Hz
RS232 & RS485 fitted as standard
4800 to 115200 baud, (8,1,N)
Valeport NMEA / Tritech / Kongsberg / $SDDBT NMEA
0-5/10V fitted as standard
Titanium (6000m rated)
48mm max Ø
43mm main body Ø
215mm length (including connector)
248mm length with pressure fitted
0.95 kg (air)/ ~0.7 kg (in water)
Subconn MCBH10F (titanium)
Page 4
0430831e_VA500_Altimeter_Manual
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