罗茨流量计(气体腰轮)

进口罗茨流量计(气体腰轮) 产品用途 Product use

罗茨流量计又名气体腰轮流量计是一种高精度、高可靠、宽范围度、低始动流量的容积式气体计量仪表，可直接测量气体的工况体积流量和总量，也可通过配置体积修正仪，测量气体的温度、压力、标况体积流量和总量，可选配DTU模块，实现无线远传。已大量应用于城市燃气和工业气体流量计量与检测，是用户实现高精度、高可靠计量的理想仪表。

Roots flowmeter, also known as gas waist wheel flowmeter, is a volumetric gas metering instrument with high accuracy, high reliability, wide range, and low starting flow. It can directly measure the operating volume flow and total amount of gas, or measure the temperature, pressure, standard volume flow, and total amount of gas by configuring a volume correction instrument. DTU modules can be optional to achieve wireless remote transmission. It has been widely used in urban gas and industrial gas flow measurement and detection, and is an ideal instrument for users to achieve high-precision and highly reliable measurement

主要特点 Main features

1.精度高，重复性好。内部转子经精密加工和平衡测试，无接触旋转，良好的油润滑，确保流量计精度不变 High accuracy, good repeatability. The internal rotor is subjected to precision machining and balance testing, non-contact rotation, and good oil lubrication, ensuring that the accuracy of the flowmeter remains unchanged

2.流量计前后不需要直管段，可以安装在环境狭窄的场合 The front and rear of the flowmeter do not require straight pipe sections and can be installed in narrow environments

3.始动流量小，量程比宽，适合于计量负荷变动大的气体流量计量 Small initial flow rate, wide range ratio, suitable for gas flow metering with large changes in metering load

4.仪表具有脉冲信号输出、4-20mA模拟信号输出、RS485 （MODBUS-RTU协议）通讯输出；同时还有IC卡信号输出，可与IC卡预付费系统配套使用，便于贸易结算 The instrument has pulse signal output, 4-20mA analog signal output, and RS485 (MODBUS-RTU protocol) communication output; At the same time, there is also an IC card signal output, which can be used in conjunction with the IC card prepaid system to facilitate trade settlement

5.使用全新的第四代隧道磁阻技术信号传感器（TMR），大大增强了仪表的抗电磁干扰能力 The use of the new fourth generation tunnel magnetoresistive technology signal sensor (TMR) greatly enhances the instrument's ability to resist electromagnetic interference

6.可靠的电磁兼容设计，抗干扰性能好，可靠性高，满足JJG633-2005标准的电磁兼容实验要求 Reliable electromagnetic compatibility design, good anti-interference performance, and high reliability meet the electromagnetic compatibility experimental requirements of JJG633-2005 standard

7.采用低功耗设计，可用锂电池供电，电池可连续使用2年以上；同时也可外接电源 It adopts a low-power design and can be powered by a lithium battery, which can be used continuously for more than 2 years; It can also be connected to an external power supply

8.专用液晶显示屏，读数直观方便，可同时显示标况瞬时流量、工况瞬时流量、标况累积流量以及测量介质的温度、压力等参数 Dedicated liquid crystal display screen, intuitive and convenient reading, can simultaneously display standard instantaneous flow, operating instantaneous flow, standard cumulative flow, and temperature, pressure, and other parameters of the measuring medium

技术参数 Technical parameter