The utility model has the advantages of small pressure loss, high measuring accuracy, wide measuring range, low requirement for pipeline installation, strong anti-interference, stable performance, good reliability and good repeatability
1、applicable medium: natural gas and other gases.
2、ZWL-90/99 gas turbine flowmeter, flow sensor and intelligent flow integrator；As a whole, the display and output function of the working flow is realized. The flow rate, temperature and pressure are collected The force sensor and the intelligent flow integrator are integrated into one to realize the temperature / pressure compensation and pressure of the flow
Contraction factor correction and display and output function of volumetric flow in standard state.
3、double row liquid crystal display accumulative flow and instantaneous flow; adopt imported full sealed isolation protection
Self lubrication micro torque bearing greatly improves the service life of the instrument.
4、using E2PROM technology, the permanent preservation of internal parameters, measuring range, range
Degree is better than 15:1;
Main technical parameters
1. The straight pipe section needs only 3D (D is the inner diameter of the pipe), and the back straight pipe section is 1D, which can ensure the accuracy of instrument measurement. The turbine flowmeter adopts magnetoresistive sensor, the initial flow rate is low, the pressure loss is small, and the resistance is low
Excellent vibration performance; accuracy: + 0.5% + 1%; repeatability; better than + 0.2%;
2 、 output signal (external +24VDC):
(1) OC gate pulse;
(2) 4-20mA current signal;
(3) RS-485 communication interface
4, environmental temperature: -30 degrees to +60 degrees; medium temperature -30 to +60 degrees; environmental humidity: 5%-95%RH; work pressure: 0-1.6Mpa;
5, specifications (pipe diameter),:25, 32, 40, 50, 80, 100, 125, 150, 200, 250, 300mm, shell material: stainless steel (1Cr18Ni9Ti);
6, explosion-proof signs: ExdIIBT4 built-in +3V lithium battery power supply, operating current type 90, 38 A, 99 80uA; when the external +24VDC power supply, the internal power switch automatically;
Range of flow rate (unit: m3/h), as shown in table