Ben Meadows: 113051
Wand extends from 4-1/2’ to 19-1/2’. Propeller is on 8” boom which swivels 120° for reaching up into lateral conduits. A 3’ adjustable table depth probe is supplied. Shipped in two pieces; one weighs 2 lbs., the other 7 lbs. Includes the 3000 series indicator.
A portable, reliable means of measuring open stream velocities in the range of 0.1 to 25 feet per second or 0.03 to 7.5 meters per second (selectable). Measurements can be read in feet or meters on your choice of two digital readout indicator models, both with better than 1% accuracy. Each meter includes a meter indicator, shoulder strap and snap ring, and PVC shipping/storage tube for the sensor. 2100 Series includes a 9V battery, and the 3000 series includes four AA batteries. Sensor The sensor uses a 2˝ propeller which rotates a fiber-optic bundle to create a signal from a photodiode to a photosensitive transistor. This signal is transferred via cable to the indicator where velocity is displayed. Resolution of the display is to hundredths. The propeller is swivel mounted for easy storage. A quick-disconnect, waterproof cable connection is located at the indicator. The electronics of the sensors are permanently encapsulated in epoxy resin and housed in chemically inert acetal-resin fittings. All sensor parts are replaceable and are available separately. Sensor wands are aluminum alloy with stainless steel fasteners. Propeller is glass impregnated nylon and all other plastic sensor parts are acetal-resin (Delrin or Celcon). Model 2100 Indicator Accommodates all types of open stream flows. Three selectable, pre-set display update times allow up to 90 seconds of averaging. In extremely turbulent flows, otherwise unreadable data is electronically averaged and can be used without interpolation. Features a dial-style control and self-calibration to check accuracy of instrument while in the field. A compartment in the back of the indicator houses the battery and has space for one spare. Liquid crystal display features one line with 0.7˝H digits. Model 3000 Indicator A datalogging version of the 2100, the 3000 records depths, width, velocities and angles along with time and date of measurements. It figures the “Q” and can upload all information in spreadsheet-acceptable format to your PC via RS232. Simple file transfer software and a DB9 serial connection cable are provided. Choose from 1 to 999 seconds of averaging. Velocities can be a single averaged measurement or the accumulated average of as many measurements as desired. As many as 1,000 “stations” in 1 to 100 stream cross-sections can be acquired and stored in memory. Use the convenient keypad to input angles of velocity other than perpendicular to the stream cross-section. Simple, accurate calibration is possible in the field. Two-line, 16-character LCD prompts user through all operations. Compatible with all Swoffer instruments. Indicator Construction Weatherproof indicator cases are vacuum-formed ABS plastic with a clear acrylic lens over the LCD and measure just 6˝ x 4˝ x 2˝. The electronics of the indicators are sealed against moisture.
- English Scales.
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