Mesin Pengolahan Air
Alat Ukur Kecepatan Air Valeport Model 106 Lightweight Current Meter
Specifications
The Model 106 Current Meter is a light weight, cost effective impeller current meter, designed for real time current measurement or short to medium term autonomous deployments. Titanium construction ensures durability, and the optional temperature and pressure sensors increase the versatility of the instrument. Ideal for use in rivers and coastal applications, or from small boats, the Model 106 is simple to use with either the Windows based PC software supplied, or an optional dedicated display unit. Sensor Speed Type High Impact Styrene Impeller Size 125 mm diameter by 270 mm pitch Range 0.03 to 5 m/s Accuracy ±1.5 % of reading above 0.15 m/s ±0.004 m/s below 0.15 m/s Direction Type Flux gate compass Range 0 to 360° Accuracy ± 2.5° Resolution 0.5° Temperature Type Thermistor Range -5 to 35°C Accuracy ± 0.2°C Resolution 0.01°C Pressure Type Strain Gauge Transducer Range 50, 100, 200 or 500 dBar Accuracy ± 0.2 % Range. Resolution 0.025 % Range Data Acquisition The current meter works on a basic 1 second cycle, during which the impeller counts are taken and a single compass heading reading is made. From this, East and North velocity vectors are calculated, which are then summed over the averaging period. The additional parameters of temperature and pressure ( if fitted ) are sampled once every sample period, and averaged over the averaging period. Data Recovery Direct to PC via communications port. Maximum RS232 data rate of 19200 baud. Switching On/Off The meters are switched on and off through software control, either by the DataLog™ software or by using the Model 8008 CDU. However, for autonomous, self recording operation the 106 is supplied with a subconn switch cap which fits in place of a direct cable connection. The Model 106 may be used with a dedicated display unit for real time operations allowing instrument setup and data display. Size 244 x 193 x 94 mm, 2 kg Protection IP67 ( 10 secs @ 0.3 m ) Memory 512 Kbyte Solid State Memory. Each parameter record uses 2 bytes. As an example, this gives a duration of over 1 week with full parameter sampling every 10 seconds, or 220 days with sampling every 5 minutes. Power Internal 1 x D cell. 1.5v alkaline cell gives approximately 30 days at 10 second sample rate, or 56 days at 5 minute sample rate. 3.6v Lithium cell gives approximately 90 days at 10 second sample rate, or 180 days at 5 minute sample rate. External For external supply, 12-20v DC is required. Power can also be taken from the Model 8008 CDU. Communications Fitted with Subconn MCBH10F ( Brass ) RS232 to PC over cable lengths up to 200 m. Digital Current Loop to Model 8008 CDU, or to PC over longer cable lengths ( requires additional adaptor ). Physical Instrument Materials Titanium, acetal and ABS plastic Size 640 mm x 50 mm Ø, ( tail 133 mm wide x 270 mm high ) Weight 3 kg ( air ), 2 kg ( water ) Depth Rating 500 m Shipping Model 106 Size 84 x 42 x 39 cm Model 106 Weight 17 kg 50 m Cable Size 42 x 33 x 49 cm 50 m Cable Weight 11 kg Software System is supplied with DataLog TM Windows based PC software, for instrument setup, data extraction and display of tabular and graphical data plots. DataLog is license free. Ordering 0106001SC Model 106 Self Recording/Direct Reading unit, fitted with speed and direction sensors. Supplied with Communications lead ( 3 m Y lead ), switch cap, set of tools, operating manual, software and system transit case. 0106003SC As 0106001SC plus Temperature option 0106004SCXX As 0106001SC plus Depth option 0106005SCXX As 0106001SC plus Temperature & Depth option ( XX denotes pressure transducer range ) 0105005SC Control Display Unit set, comprising deck lead and Model 8008 CDU.
