Characteristics of LW400 plug-in turbine flowmeter

Low pressure loss and impeller with anti-corrosion function; Adopting advanced ultra-low power single-chip microcomputer technology, the whole machine has strong functions, low power consumption, and superior performance. Intelligent flow display with non-linear accuracy compensation function. The accuracy of the correction formula is better than ± 0.02%, and the instrument coefficient can be set online by buttons and displayed on the LCD screen. The LCD screen is intuitive, clear, and reliable
Using EEPROM for power down protection of accumulated flow and instrument coefficient, with a protection time greater than 10 years
Using high-performance MCU central processing unit, data acquisition, processing, display output, and convenient human-machine interface implementation of cumulative flow instantaneous flow display on the same screen are completed, and data transmission is carried out in standard 485 form.  
Adopting fully cemented carbide (tungsten carbide) shielded cantilever beam structure bearings, integrating rotating bearings and pressure bearings, greatly improving the bearing life, and can work in media with a small amount of sediment and dirt.  
Adopting 1Cr18Ni9Ti all stainless steel structure (2Cr13 for turbine), it has good anti-corrosion performance.  
Easy to repair, with a self rectifying structure, small and lightweight, simple structure, can be assembled and disassembled in a short time, and easy internal cleaning.  
Has strong resistance to magnetic interference and vibration, reliable performance, and long lifespan
Low lower flow rate, wide measurement range, clear and intuitive display on on-site LCD screen, low power consumption, 3V lithium battery power supply can run continuously for more than 5 years, corrosion-resistant, suitable for acid-base solutions

Technical parameters of LW400 plug-in turbine flowmeter

Nominal diameter: Pipeline type: DN4~DN200
Insertion type: DN100~DN2000
Accuracy level: Pipeline type: ± 0.5 level, ± 1.0 level
Insertion type: ± 1.5 level, ± 2.5 level
Environmental temperature: -20 ℃~50 ℃
Medium temperature: Measuring liquid: -20 ℃~120 ℃
Measurement gas: -20 ℃~80 ℃
Atmospheric pressure: 86KPa~106KPa
Nominal pressure: 1.6 Mpa, 2.5 Mpa, 6.4 Mpa, 25 Mpa
Explosion proof grade: ExdIIBT4
Connection methods: threaded connection, flange clamping, flange connection, plug-in, etc
Requirements for straight pipe section: Gas: The upstream straight pipe section should be ≥ 10DN, and the downstream straight pipe section should be ≥ 5DN
Liquid: The upstream straight pipe section should be ≥ 20DN, and the downstream straight pipe section should be ≥ 5DN
Insertion type: The upstream straight pipe section should be ≥ 20DS, and the downstream straight pipe section should be ≥ 7DS (DS is the measured inner diameter of the pipeline)
Display mode: (1) Remote transmission display: pulse output, current output (with display instrument)
(2) On site display: 8-bit LCD displays cumulative flow rate, unit (m3)
4-digit LCD displays instantaneous flow rate, unit (m3/h), battery level, frequency, and flow rate
(3) Temperature and pressure compensation type:
A、 Display standard instantaneous flow and standard cumulative flow
B、 Display current pressure, temperature, battery voltage
Output function:
(1) Pulse output, p-p value determined by the power supply
(2) 4-20mA two-wire current output
(3) Unit volume pulse output and sensor raw pulse output
(4) Equipped with RS485 communication interface
Power supply:
（1）DC5～24V 
(2) The standard 3V lithium battery installed inside the instrument panel can be used continuously for more than eight years
(3) Temperature pressure compensation type 3V lithium battery installed inside the instrument can be continuously used for more than four years
Transmission distance: The distance from the sensor to the display can reach 500m