Valeport BFM 108 MkIII Current Meter – Available for rental, hire and ex-rental purchase from Ashtead Technology.
A direct reading, vector averaging current meter with surface readout unit and 200m cable. The unit can also be operated via a short lead, over an ROV umbilical. The Model has been developed to meet the needs of oceanographers, hydrographers and surveyors. Speed and Direction sensors are fitted as standard, with optional Conductivity, Temperature and Depth sensors.
Data Acquisition - The vector average is based on a 5 second period during which impeller counts are measured and a single mass compass reading is made, and the vector average is built up over the averaging period set. Averaging period is any multiple of 5 seconds, up to a maximum of 30 minutes. For the optional parameters, the sample is taken at the end of each sample period, and averaged over the averaging period. Real time display is updated at the end of each averaging period.
|Type||Impeller [0.27m pitch x 125mm ø]|
|Range||0.03 to 5.0 m/s|
|Accuracy||<0.15m/s, ±0.004m/s or >0.15m/s, ±1.5% reading|
|Type||Flux gate compass [± 25º gimbal]|
|Range||-5 to 35ºC|
|Range||0.1 to 60mS/cm|
|Accuracy||± 0.05 ms/cm|
|Range||100, 200, 500 or 1000 dBar|
|Accuracy||± 0.1% FS|
|RS232||Standard, up to 100m cable direct to PC|
|Digital Current Loop||Standard fit, used by 8008 CDU, this is a 2 wire method suitable for real time communications over cable lengths up to 3000m (requires an ad|
|Software||Supplied with Valeport's own Windows based DataLog software, which allows the user to set up intrument sampling regime and display data.|
|CONTROL DISPLAY UNIT||Used in real time with Valeport's 8008 Control Dsiplay Unit (CDU). This features an LCD grpahics display of all parameters and allows full s|
|Power||8 x 1.5v "C" cells (also powers instrument)|
|Protection||IP67 (10 secs @ 0.3m)|
|External||10 - 18vDC, <1W. May be taken from 8008 CDU|
|Materials||Titanium & Acetal|
|Unit||76mmÿ x 880mm||3ÿ x 34.6""||11kg||24.2lbs|
|CDU||244 x 193 x 94mm||13.5 x 7.6 x 3.7",2kg "||4.4lbs|
|Shipping||950 x 430 x 480mm (inc 50m cable and CDU)||37.4 x 17" x 18.9""||40kg||88.2lbs|