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Configuration options & accessories --
5T or
5P
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SBE 5T |
SBE 5P |
DESCRIPTION
The pump module is a compact unit consisting of a centrifugal pump head and a long-life, brushless, DC, ball-bearing motor. The pump impeller and electric drive motor are coupled magnetically through the housing, providing high reliability by eliminating moving seals. The 5T has a 10,500-meter (34,400-ft) titanium housing; the 5P has a 600-meter (1960-ft) plastic housing. The operational characteristics of the 5T and 5P are identical.
APPLICATIONS
The pump is a primary component in the SBE 9plus CTD and SBE 25 SEALOGGER CTD. It is also used as optional equipment on SBE 16plus V2, 16plus-IM V2, and 19plus V2 SEACAT CTDs. The pump flushes water through the conductivity cell at a constant rate, independent of the CTD's motion, improving dynamic performance. The pump may also be suitable for custom applications, where pressure heads are less than 300 cm of water and flow rates are less than 100 ml/sec.
CONFIGURATION
The pump is configured by selecting standard or low voltage, and one of several motor speed options. Speed options of 1300, 2000, or 3000 rpm have been established to meet flow rate requirements for Sea-Bird applications. Other speeds can be set by adjusting a potentiometer.
OPERATION
Motor speed and pumping rate remain nearly constant over the entire input voltage range (less than 1% change in speed for a 1-volt change in supply voltage). The unrestricted flow rate with no head is approximately 100 ml/second at 2000 rpm. Flow changes are nearly linear with changes in speed. With unlimited power supply current, turn-on surge is approximately 1.8 Amps (maximum), which drops to steady state in approximately 0.25 seconds. If power supply current is limited to approximately 200 milliAmps, the motor comes up to speed in approximately 0.30 seconds. A series diode is installed in the input power line to prevent damage if wires are accidentally reversed. Pumping rates and motor current for various applications are shown below.
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SBE 5T
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SBE 5P |
SPECIFICATIONS
Input Voltage:
Standard input range (#3 winding; 1300 - 3000 rpm) : 10 - 18 VDC
Low input range (#3 or #5 winding; 1300, 2000 rpm only) : 6 - 16 VDC
Weight:
SBE 5T -- 0.7 kg (1.5 lbs) in air,
0.3 kg (0.7 lbs) in water
SBE 5P -- 0.5 kg (1.0 lb) in air; 0.1 kg (0.2 lbs) in water
| Description | Click Thumbnail to View | |
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Voltage vs. Current Draw |
#5 Winding, Low Voltage |
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#3 Winding, Standard Voltage, 1300 & 2000 RPM (2000 RPM version typical for SBE 16plus V2, 16plus-IM V2, or 19plus V2 with pumped auxiliary sensors) |
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#3 Winding, Standard Voltage, 3000 RPM (typical for SBE 9plus) |
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| Pump Speed |
Pump Speed Setting vs. Flow Rate |
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Pump Speed Setting vs. Pressure |
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ADDITIONAL INFORMATION / LINKS:
Documentation -- manual, photos, technical papers, application notes, etc.
Sales Information -- options, accessories, cables, mount kits, spares, etc.
Links to Other Instruments of Interest
Specifications are subject to change without notice.
Sea-Bird Home Phone: (+1) 425-643-9866 Fax: (+1) 425-643-9954 E-mail: seabird@seabird.com
