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Fluorimeters Hydrocarbon Detection Sensors Acoustic Sonar Test Projectors Hydrophones Towed Vehicles FerryBox Calibration Rental |
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The CTG Marine Deck Unit interfaces between the computer and the instruments. It supplies the power to the instrument suite and converts the RS422 output from the instruments to the RS232 format required by the PC. The CTG Marine Deck Unit case may be rack mounted or stand alone by removing the mounting lugs. The case is not spray proof so it must be sited within a deck house environment. Having
a 72 VDC output it is specifically designed with sufficient voltage
overhead to operate on most multi-core oceanographic cables up to 1000
metres long when providing 1A to the sub-sea instrumentation.The
CTG Marine Deck Unit is typically used in real time deployments of
towed vehicle based systems, ie, Nn-Shuttle
and AQUAshuttle
III and profiling packages. However it can also be used in the
laboratory during sensor calibrations etc. The appropriate
interface unit to instrument cable is required. |
For use with:
Options: |
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Specification: |
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Supply input |
110/240V Selectable |
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Power consumption |
130Watts |
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Fuse rating |
2 Amp fast blow |
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Size |
440W (19" rack mounting) x 352 D x 88 H equivalent of 2U |
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Weight |
6kg |
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Instrumentation Power |
72V DC @1.6A |
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Communication |
RS232 |
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Environmental Conditions: |
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Operating Temp range |
0oC-50oC |
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Maximum relative humidity |
80% for temps up to 31oC; 50% relative humidity at 40oC |
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Mains supply voltage fluctuation |
+10% |
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The Portable Interface Unit converts the RS422 communications protocol of the subsea instruments (required to enable communications over long cables) to RS232 for interfacing to a host PC running AQUAsoft. Having a low voltage output (16VDC) the PIU is not designed to withstand large voltage drops experienced when deploying instruments on long cables. It is used with short cable lengths (typically 3m). A mains powered adapter (110-240 VAC) allows recharging of the internal battery whilst simultaneously powering the instrument. The appropriate interface unit to instrument cable is required. This unit is not designed to provide power during deployment. |
For use with:
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Specification: |
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Power in from an external power supply |
18V DC; 2A(F) fuse rated |
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Power out to sensor from external PSU |
15 to 16V DC |
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Power out to sensor from internal battery |
10.8 to 12V DC, 1A(F) fuse rated |
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Battery Charge Voltage Fast charge |
14.8.DC |
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Battery Charge Voltage Trickle charge |
13.8V DC |
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Case Dimensions |
297 x 210 x 60mm |
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Weight with one battery |
2.3Kg |
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Weight with two batteries |
3.1Kg |
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Safety Standard |
BS EN 61010-1: 1993 |
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Max sea cable length to sensor |
3m |
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Re-chargeable Battery |
Yuasa NPT2.1-12, RS 597-813, 1.5A(F) inline fuse rated |
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Communications to and from PC |
RS232 |
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Communications to and from sensor |
RS422 |
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RS 232 Connector |
23 way D Type socket |
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DC Volts in Connector |
2.1mm Jack socket |
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Sea Cable Connector |
MIL-C-5015 with sealing cap |
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Single PC Configuration |
Dual PC Configuration |
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Typically used with CTG instruments where a single PC is required for vehicle control and data display. An integrated deck unit, mounted in a 19" instrumentation rack 17u high. Comprising:
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Typically used with complex sensor suites where a dual PC is required for vehicle control and data display. An integrated deck unit, mounted in a 19" instrumentation rack 24u high. Comprising:
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