Simple Remote Water Flow Velocity Current Meter 1. flow range of differnent kinds 2. cheap with high quality
LS20B Portable Remote Simple Reading Water Current Meter with carrying case
Introduction
LS20B propeller Current Meter had passed the technical appraisement of the Ministry of Water Resources of the People's Republic of China in 1986 and its performance had reached international advanced level of similar products. This product was awarded the Third Prize of Science and Technology Progress by the Ministry of Water Resources of the People's Republic of China in 1988 and was honored as China state level new product in 1990. In 1993, it participated in the international Current Meter test which was organized by United States Geological Survey (USGS) and its superb performance was well praised by American experts when compared with world famous brands such as America Price AA,Germany OttC-3,Britain Valeport BFM002 and so on.
Application
LS20B type propeller Current Meter is a kind of large-range hydrological Current Meter, which is applicable to measure high, medium, and low flow rate of rivers, lakes, channels, reservoirs and so on. It can also be used for measuring high speed or ultrahigh speed flow rate in pressure pipe of power station and some scientific experiment.
Main Technical Parameter
Speed Range: 0.05~15m/s
Propeller Tactical Diameter: 120mm
Propeller Water Power Pitch: 200mm
Output Signal Frequency: 2 signal/rotate
Verification Formula Relative Error: V≥VK, < 1.5%; V<VK, < ±5%
LS20A Propeller Current Meter
Main Technical Parameter
Propeller Structure: Spiral curve double-vane, levorotation, PC plastic
Propeller Tactical Diameter D: 120mm
Propeller Water Power Pitch b: 200mm
Instrument Run-up Speed: V0≤0.04m/s
Verification Curve Critical Speed Vk: About 0.13m/s ( straight line formula origin)
Flow Rate Measuring Range V: 0.05~15m/s
Signal Part Structure: Magnetic steel-reed switch electronic switch
Each Signal Rotate: 20 rotates
Verification Curve Relative Error E: V≥Vk, E<±1.5; V<Vk, E<±3%
Swith Contact Capacity: Current ≤50mA, Voltage≤6V
Reed Switch Operating Life: 70 million times
Instrument Continuous Working Time: 2 hours (suspend load sediment concentration ≤50kg/m³,flow rate≤8m/s, depth≤10m)
Flow Condition: Depth Range: 0.2~50m
Water Temperature: 0~40°C
Suspend Load Sediment Concentration: ≤100kg/m³
Salinity: ≤2g/L
LB70 Spinning Cup Type Current Meter
Introduction
LB70 spinning cup type Current Meter is a universal type meter in river hydrology test to measure mean flow rate of scheduled testing point in rivers, lakes, reservoirs, channels and so on. Section flow can be calculated by each point flow rate and average of all sections.
Main Technical Parameter
Cup Structure: Six evenly divided thin-wall taper cup (1 type: plastic cup; 2 type: stainless steel cup)
Cup Tactical Diameter D: 130mm
Instrument Run-up Speed: V0≤0.06m/s
Flow Rate Measuring Range V: 0.10~4.0m/s
Verification Curve Relative Error E: V≥0.20m/s, E<±1.5%; V<0.2m/s, E<±5%
Swith Contact Capacity: Current ≤50mA, Voltage≤6V
Each Signal Rotates: 20 rotates/signal(LB70-A)
5 rotates/signal (LB70-D)
Signal Sending Part Structure: Magnetic reed pipe electronic switch
Swith Contact Capacity: Current≤50mA Voltage≤6V
Reed Pipe Operating Life: 70 million times
Instrument Continuous Working Time: 2 hours ( suspend load sediment concentration
≤0.5kg/m³, flow rate≤1m/s)
Instrument Installation: Hydrology cableway lead fish- head installation;
Measured hydrological winch boat-suspension installation;
Muddy water-measuring bar installation
Measuring Bar Specification: Diameter 20mm×length 3m, can be uninstalled into 3 parts
Flow Condition: Water Depth Range: 0.10~100m
Water Temperature: 0~40°C
Suspend Load Sediment Concentration: ≤5kg/m³
Salinity: ≤2g/L
Floater: No or few
LS25-1 Propeller Current Meter
Main Technical Parameter
Measuring Range: 0.06~5.0 m/s
Working Depth: >0.2m
Number of Signal: 20 rotates/signal
Application: Measure mean flow rate of scheduled testing point in rivers, lakes, reservoirs, channels and so on.
Full Set Instruments: The host of flow meter should be assembled with CG28 type measuring bar, flow meter and signal wire.
LS25-1A Propeller Current Meter
Main Technical Parameter
Measuring Range: 0.06~5.0 m/s
Working Depth: >0.2m
Number of Signal: 1 rotates/signal
Application: Measure mean flow rate of scheduled testing point in rivers, lakes, reservoirs, channels and so on.
Full Set Instruments: The host of flow meter should be assembled with CG28 type measuring bar, flow meter and signal wire.
LS25 -3A Propeller Current Meter
Main Technical Parameter
Measuring Range: 0.04~10.0m/s
Number of Signal: 20 rotates/signal
Features: Large range, can be used in high, medium or low speed
Application: Measure mean flow rate of scheduled testing point in rivers, lakes, reservoirs, channels and so on.
Full Set Instruments: Host of flow meter, CG20 type measuring bar, measuring instrument, and transmission line
LS25 -3B Propeller Current Meter
Main Technical Parameter
Measuring Range: 0.04~10.0m/s
Number of Signal: 1 rotates/signal
Features: Large range, can be used in high, medium or low speed
Application: Measure mean flow rate of scheduled testing point in rivers, lakes, reservoirs, channels and so on.
Full Set Instruments: Host of flow meter, CG20 type measuring bar, measuring instrument, and transmission line
LS25-3C/LS25-3C2 Propeller Current Meter
Main Technical Parameter
Measuring Range: 0.04~10.0 m/s
Working Depth: >0.2m
Number of Signal: 1 rotates/4 signals
Application: Measure mean flow rate of scheduled testing point in rivers, lakes, reservoirs, channels and so on.
Full Set Instruments: The host of flow meter should be assembled with CG28 type measuring bar, flow meter and signal wire.
LS10/LS10A Propeller Current Meter
Main Technical Parameter
Measuring Range: 0.10~4.0m/s
Working Depth: >0.1m
Number of Signal: 1rotates/signal or 20 rotates/signal
Features: small size and convenient to carry
Application: Flow measurement of general rivers and lakes; Especially used to measure flow rate of environmental protection, mine, field irrigation and water resources investigation
Full Set Instruments: Host of flow meter, CG16 type measuring bar, measuring instrument, and signal line
LS68 Spinning Cup Type Current Meter
Main Technical Parameter
Measuring Range: 0.20~3.5m/s
Working Depth: >0.2m
Number of Signal: 5 rotates/signal
Application: Few floaters and low flow rate condition
Full Set Instruments: The host of flow meter should be assembled with measuring instrument, steel wire rope and signal line.
LS78 Spinning Cup Type Current Meter
Main Technical Parameter
Measuring Range: 0.20~0.50m/s
Working Depth: >0.2m
Number of Signal: 1 rotates/signal
Application: Measure bottom flow rate of rivers, lakes and reservoirs, especially applicable to deep water of low flow rate
Full Set Instruments: The host of flow meter should be assembled with measuring instrument, steel wire rope and signal line.
LS45/LS45-2 Spinning Cup Type Current Meter
Main Technical Parameter
Measuring Range: 0.015~3.50m/s
Working Depth: 0.05~3m
Number of Signal: 1 rotates/4 signals
Features: Clear and reliable signal, sand-proof and convenient instrument, easy installation
Application: Measure flow of channel irrigation, environment sewage and hydraulic laboratory
Full Set Instruments: The host of flow meter, CG12 type measuring bar, HR measuring instrument, and signal line
Microcomputer Interface: LS45-2
Product Details
Portable Remote/Simple Reading Water Current Meter with carrying case
