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Fact Sheet (pdf) |
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| Applications | |||||
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MINIpack is a low cost, compact, robust and fully integrated CTD-F sensor suite designed to meet the demands of open ocean, estuarine and fresh water environmental monitoring, incorporating a 24 channel data logger. MINIpack is designed to be a multi-parameter sensor data logger that can be deployed individually or as the core of a larger multi-parameter system. As such, it may be used as a discrete profiling instrument, installed on a data buoy, moored in the ocean or to form the core of a towed undulating vehicle system. It has been designed specifically for easy installation into the Chelsea Technologies Group range of towed vehicles. This compact instrument contains a fluorimeter, conductivity, temperature and depth sensor. These sensors are coupled to a high performance data logger. For real time applications, the MINIpack is provided with a transmission system with the capability of providing power to and acquiring data from up to 16 external sensors (14 differential channels & 2 single ended channels). These may typically include dissolved oxygen, pH, PAR, up & downwelling sensors, fluorimeters & transmissometers. A titanium / acetal housing contains all on-board sensors, processing boards, data transmission or internal batteries. The highly versatile SmartMedia TM is used for pre-programming and storing of measured data. This data is easily extracted by a PC and presents data in ASCII files in engineering units, which are easily processed by propriety software packages. Data may be stored on the internal SmartMediaTM Card (for standalone mode) or transmitted in real-time up the cable using RS422 (RS232 option) format. An interface unit is available to convert RS422 (or RS232) for onward transmission to a PC. A user-friendly Windows based GUI enables error free programming of the internal logger and data extraction.Flow Through Manifold is now available - this is designed to convert the MINIpack from an in-situ CTD-F sensor suite to a flow through version for Ferrybox and process control applications.
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| GENERAL |
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Size: |
114 mm dia. x 200 mm (sensors to end cap) |
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Weight: |
3.25 kg (in air); 1.8kg (in water) |
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Depth rating: |
600m |
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External input: |
18 to 72VDC
(via interface unit) |
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Material: |
Titanium / Acetal |
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DATA TRANSMISSION | |
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Type: |
RS422 (RS232 option) |
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Data rate: |
9600 baud |
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Scan rate: |
1 Hz to 1 sample/day |
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Sample period: |
1 sec to 1 day |
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Sampling interval: |
1 sec to 1 day |
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DATA LOGGER | |
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Capacity: |
16Mbyte Storage Card (SmartMediaTM) |
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No of readings: |
100,000 records of all 24 channels |
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INTERNAL SENSORS | |
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Type |
Range |
Accuracy |
Resolution |
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Conductivity |
Induction Cell |
0-70 mmhos/cm |
0.005 mmhos/cm |
0.001 mmhos/cm |
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Temperature |
Pt resistance |
-2 to +35 oC |
0.003 oC |
0.0005 oC |
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Pressure |
Strain gauge with temp compensation |
0-600dbar |
0.2dbar |
0.01dbar |
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Fluorimeter |
Excitation |
Emission |
Concentration |
Resolution: |
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Chlorophyll-a |
470/30nm |
685/30nm |
0.03-100µg/l |
0.01µg/l |
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Chlorophyll-a |
430/30nm |
685/30nm |
0.03-100µg/l |
0.01µg/l |
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Rhodamine |
470/30nm |
590/45nm |
0.03-100µg/l |
0.01µg/l |
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Amido Rhodamine |
425/30nm |
550/30nm |
0.04-200µg/l |
0.025µg/l |
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Fluorescein |
480/80nm |
530/30nm |
0.03-100µg/l |
0.01µg/l |
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Nephelometer |
470/30nm |
470/30nm |
0.04-100FTU |
0.01FTU |
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Phycoerythrin |
530/30nm |
580/30nm |
0.03-100µg/l |
0.01µg/l |
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Phycocyanin |
590/35nm |
645/35nm |
0.03-100µg/l |
0.01µg/l |
In view of our continual improvement, the designs and specifications of our products may vary from those described.
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