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TBX precession vortex flowmeter

    Low gas

    Low city gas
    Low compressed air
    Alkanes with inert gas industry

    No mechanical moving parts, corrosion resistance, stable and reliable, long-term operation without special maintenance, good adaptability to media.
    Installation conditions is not strict, straight pipe upstream or downstream instrument can greatly shorten the orifice plate and the vortex street flowmeter.
    Adopt unique processing technology, sensor and circuit can effectively solve the pressure fluctuation and mechanical vibration on the influence of flow meter.
    Adopting micro power consumption of new and high technology, with can work both internal and external power supply, battery can be used within five years.
    Wide measuring range, can be in orifice and vortex flowmeter can not work effectively in small flow area.
    Small volume, light weight, off-line repair and calibration is more convenient.
    Signal can be in situ measurement showed that can also be on-demand far eastone, header can rotate 360 °.
    Large screen LCD display standard volume flow, volume, temperature, pressure and battery capacity, clear and intuitive, easy reading.

　　TBX is my company developed intelligent vortex precession flowmeter has the domestic leading level of a new type of gas meter, the principle is that when the axial flow of the fluid at the entrance into the flow sensor, vortex body line force of fluid into the rotary motion, thus vortex occurred in the vortex flow, vortex flow precession in the venturi tube, reached the contraction section of throttling the vortex flow acceleration, suddenly when vortex flow into the diffusion section, by refluxing forced precession type quadratic rotation.The rotation frequency of vortex flow is proportional to the medium flow rate, and linear.Signal amplified by preamplifier, filter, converting plastic flow rate is proportional to the pulse signal, and then detect the letter with temperature, pressure, etc Number are sent to the microprocessor for integrating processing together, and then displayed on the LCD screen out measurements （instantaneous flow and cumulative flow, pressure and temperature data）；Such as petroleum, chemical, electric power, llurgy industry for ideal gas measuring instrument.
Technical parameters
：

管道口径（mm）

15、20、25、32、40、50、65、80、100、150、200

******度

±1.5%、±1%

执行标准

执行国家检定规程JJG198-94《速度式流量计》

安装要求

前直管段≥5DN，后直管段≥1DN

仪表材质

铝合金；不锈钢（可选）

介质温度

-20~+80C°

环境条件

环境温度：-30~+60C°

相对湿度： 5%~95%

大气压力：70kpa~106kpa

工作电源

1.外电源：+24VDC±15%，适用于4mA~20mA输出、脉冲输出、RS485

2.内电源：1组3.6V锂电池，可连续工作三年以上

输出功能

脉冲输出、电流4mA~20mA输出、控制信号和RS485

防爆等级

ExdIIBT4 ; ExiaIICT4

防护等级

Ip65

Flow range：

公称通径

（mm）

 流量

范围（m3/h）

  工作压力

精度等级

  重复性

  （mpa）

 

 

DN15

A

   1.0~10

 

 

 

 

  

    1.6

    2.5

    4.0

    6.3

    1 0

    1 6

 

 

 

 

 

 

 

   1.0

   1.5       

 

 

 

 

 

 

 

小于基本误差限******值的1/3

DN20

A

   1.5~15

DN25

A

   3.0~30

DN32

A

   6.0~60

DN40

A

   7.0~70

DN50

A

   15 ~150

B

   10 ~150

DN65

A

   16 ~160

B

   20 ~190

DN80

A

   40 ~400

B

   10 ~200

DN 100

A

   80 ~900

B

   30 ~600

  DN150

A

  150~1800

B

   40~900

DN200

A

  240~3600

Selection coding：TBX - 口径 - 输出 - 温度 - 压力 - 精度等级

仪表口径

                          DN15~DN200

信号输出

I1 : 脉冲输出

I2 : 电流4mA~20mA输出

I3 : RS485

介质温度

 -20~+80C°

压力等级

气体压力/公称压力

精度等级

                           1.0 、 1.5

Coding, for example: TBX - 0.5/1.6 - I2-30-50-1.5
Explanation: intelligent precession vortex flowmeter, diameter (, current ma 4 ~ 20 ma output, gas 30 ° c temperature, gas pressure 0.5 mpa, nominal pressure 1.6 mpa, precision grade 1.5 on the Richter scale are unlikely
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