1、 Product Features
·High accuracy,Generally achievable±1%R、±0.5%R,High precision type reachable±0.2%R；
·Good repeatability, short-term repeatability can be achieved0.05%~0.2%,It is precisely because of its good repeatability that it can be obtained through regular calibration or online calibration
High precision flow meters are preferred for trade settlement;
·Output pulse frequency signal, suitable for total measurement and computer connection, no zero drift, strong anti-interference ability;
·Can obtain high frequency signals（3~4kHz）Strong signal resolution;
·Wide range, capable of reaching medium to large diameters1:20The small caliber is1:10；
·Compact and lightweight structure, easy installation and maintenance, and high circulation capacity;
·Suitable for high voltage measurement, there is no need to open holes on the instrument body, making it easy to make high voltage instruments;
·There are various types of specialized sensors that can be designed according to the specific needs of users, such as low-temperature, bidirectional, and downhole sensors
Type, sand mixing special type, etc;
·Can be made into an insertion type, suitable for measuring large diameters, with low pressure loss, low price, can be removed without interruption, and easy installation and maintenance.

2、 Basic parameters and technical performance
Technical performance: Table1

Measurement range and working pressure: gauge2

3、 Instrument classification
1Classified by instrument function,LWGYThe series of turbine diesel flow meters can be divided into2Major categories, namely:
l■turbine flow sensor/Transmitter
■Intelligent integrated turbine diesel flowmeterl
2Function Description

turbine flow sensor/Transmitter

This categoryTurbine flow rateThe product itself does not have on-site display function, only transmitting and outputting traffic signals remotely. Flow signals can be divided into pulse signals or current signals（4-20mA）； The instrument is inexpensive, highly integrated, and compact in size, making it particularly suitable for use with secondary display devicesPLC、DCSWaiting for the computer control system to be used in conjunction.
This type of turbine flow product is divided into basic and explosion-proof types（ExdIIBT6）Two types, with the appearance shown in the picture
picture1 Basic type sensor/Transmitter

picture2 Explosion proof sensor/Transmitter

According to different output signals, this type of product can be divided intoLWGY-□NType andLWGY-□Atype

LWGY-□NType sensor:12～24VDCPower supply, three wire pulse output, high level≥8V, low level≤0.8VSignal transmission distance≤1000Rice;
LWGY-□AType transmitter:24VDCPower supply, two-wire system4-20mAOutput, signal transmission distance≤1000.

Intelligent integrated turbine diesel flowmeter

Developed using advanced ultra-low power single-chip microcomputer technologyturbine flow sensorA new type of intelligent instrument integrated with display integration, using dual row LCD on-site display, has obvious advantages such as compact mechanism, intuitive and clear reading, high reliability, no external power interference, lightning resistance, and low cost. The instrument has three-point correction of instrument coefficient, intelligent compensation of instrument coefficient nonlinearity, and can be corrected on site. High definition LCD display simultaneously displays instantaneous flow rate（4Significant figures and cumulative traffic（8Significant digits with reset function. All valid data remains after power failure10Year not lost. This type of turbine diesel flowmeter is an explosion-proof product with an explosion-proof rating of:ExdIIBT6.

picture3 Intelligent integrationTurbine diesel flowmeter

This type of turbine diesel flowmeter can be classified according to the power supply method and whether it has remote signal outputLWGY-□BType andLWGY-□Ctype

LWGY-□BType: The power supply adopts3.2V10AHLithium battery (capable of continuous operation)4Over years old); No signal output function.
LWGY-□CType: The power supply adopts24VDCExternal power supply, output4-20mAStandard two-wire current signal, and can be increased according to different on-site needsRS485perhapsHARTCommunication.