Characteristics of LW400 Signal Output Turbine Flow Meter

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%. The instrument coefficient can be set online by buttons and displayed on the LCD screen, which is intuitive, clear, and reliable
Using EEPROM for accumulated flow and instrument coefficient power failure protection, with a protection time of more than 10 years, using high-performance MCU central processing unit to complete data acquisition, processing, display output, and convenient human-machine interface for instantaneous flow of accumulated flow displayed on the same screen. 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, long lifespan, low lower flow rate, and wide measurement range
On site display LCD screen with clear and intuitive display, low power consumption, 3V lithium battery power supply can run continuously for more than 5 years, corrosion-resistant, suitable for acidic and alkaline solutions

Technical parameters of LW400 signal output 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

Selection Tips
When selecting a signal output turbine flowmeter, the following parameters need to be determined in detail: pipeline diameter, measuring medium, working temperature, pressure (working state or standard state), installation method (pipeline or plug-in), power supply (12V, 24V or battery power), output method (4-20mA, pulse output or 485 communication), maximum flow rate (working state or standard state), whether explosion-proof is required, and whether the flange connection type should come with a matching flange.

Installation Diagram