Zero Instrument LS20B portable current meter is developed for the specific measurement of the flow rate for the hydrometric station, factories and mines, environment-protection monitoring station, irrigation and drainage on the farmland and hydrogeology survey, etc.
LS20B intelligent current meter can be equipped with the new sensor of the flow rate rotating propeller. The sensor is developed by advanced technology at the end of 2004. The helical angle, thread pitch, craftsmanship, and materials are all been redesigned., the initial velocity ≤5cm/s. Indicators like initial velocity, measurement range, linearity, concentricity, Calibration coefficients, and mean-variance are been greatly improved. The measurement range of the flow velocity: 1~700cm/s and that of sampling time: 1~99 seconds.
The device is simple and convenient, energy-saving, stable, and reliable. It possesses complete functions and high automaticity in accordance with the national measurement standard of the open channels. Equipped with a rotating propeller that can endure 80 ℃， it is a new portable current meter by Zero Instrument in China.
I: technical requirement of the device.
KN
Velocity measurement formula：V ＝ ——————— ＋ C(m/s)(automatic calculation)
T
Serial number： 、K 、C
Range of the velocity measurement：0.05-15.00 m/s (8.00m/s is also attainable)
Error in current measurement：≤1.5%
Display screen：4×16 liquid crystal display
Measurement mode： Dipstick location measurement
Temperature range：－20℃- 60℃
Power supply: DC8.4V Li-ion rechargeable battery, continuous operation of above 40 hours after complete charge.
