Shandong Boke Instrument Co., Ltd
1769283299@qq.com
15666889252
Room 110, 1st Floor, Workshop 3, Oulong Technology Park, No.1 Jinma Road, Yuqing Community, Xincheng Street, Weifang High tech Zone, Shandong Province
1、 Product Introduction
The current velocity and flow meter (referred to as portable current meter) is a universal instrument for measuring the current velocity in hydrometry, which is used to measure the average flow velocity of the time period at the predetermined measuring points in the river, lake, reservoir, channel and other water sections.
This flowmeter complies with relevant national standards such as GB/T 11826-2019 (rotary flowmeter).
This flow meter is widely used in hydrological testing, water conservancy investigation, farmland irrigation, runoff experiments, etc. It can also be applied to monitoring flow velocity or volume in industries such as hydropower, environmental protection, mining, transportation, geology, scientific research institutes, and municipal engineering.
The portable current meter mainly consists of a propeller type current sensor, a current measuring instrument, and a measuring rod. The complete set of instruments is placed in a high-grade aluminum alloy password box. Connect the signal line to measure the flow velocity in each open channel and automatically display the flow velocity.
The instrument has a simple structure, is lightweight and convenient, consumes less power, has complete functions, high degree of automation, and is stable and reliable. It meets the national standard for open channel flow measurement and is equipped with a 60 degree high-temperature propeller. It is currently a new type of portable flow velocity measurement instrument in China.
2、 Technical parameters:
Speed measurement formula: V=KN/T+C (m/s) (automatically calculated)
Rotating diameter of propeller: Ø 125mm
Spiral propeller hydraulic pitch b: 200mm (theoretical value)
Starting speed V0:0.03m/s
Speed measurement range: 0.04-10.00 m/s
Flow measurement error: ≤ 1.5%
Output signal: Magnetic switch contact on/off signal
Signal number/rotor speed: 1/20 (LJ20A type) (1 signal every 20 revolutions); 1/1 (LJ20C type) (1 signal per 1 revolution)
Display screen: 4 × 16 bit LCD display
Measurement method: Pole positioning measurement (also cable suspension positioning measurement)
Temperature range: -25 ℃ -55 ℃, humidity ≤ 90% RH
Power supply: DC8.4V (rechargeable battery), can work continuously for more than 40 hours after being fully charged