现代使用非常广泛的 一种用于显示的电子仪表 ，目前在各行各业均有应用，因为其显示数据精确而且一目了然，所以在很多场合下已经代替了指针式仪表。 Digital display meter is a widely used electronic instrument for display in modern times . It is currently used in various industries. Because its display data is accurate and clear at a glance, it has replaced the pointer instrument in many occasions. 电子钟表 到工厂用的显示数据牌，无论是对时间的把握还是对产量的控制都提供了精准的数字显示，用数字量替换了 模拟量 。 From the electronic clocks in our homes to the display data plates used in factories, both the grasp of time and the control of output provide accurate digital displays, replacing analogues with digital ones . ，越来越熟悉。 Digital displays are becoming more and more popular and familiar in our lives . When selecting a meter, pay attention to many aspects, such as display digits, meter size, and input signals.
。 The number of display digits is directly related to the measurement accuracy of the digital display meter. Generally speaking, the higher the number of display digits, the more accurate the measurement, and the more expensive the price. There are mainly the following: two digits ( 99 , special); three digits ( 999 , Rarely); three and a half digits ( 1999 , ordinary digital display meter is mainstream) . For these, users can choose according to their requirements.
The size of the meter is a very basic issue. The digital display meter should be installed on the cabinet, so the overall coordination should be considered. If it is too large, it may not fit, and if it is too small, it will not be clear. In addition, the large-scale instrument generally has strong function expansion and the same function price. It may be expensive, and a small meter may be less functionally expandable. These need users to arrange according to their needs.
是指连 接输入仪表的测量信号，有些工业信号是直接接入仪表测量的，有些信号是经过转化后接入仪表的，必须弄清楚测量信号的性质 。 The input signal refers to the measurement signal connected to the input instrument. Some industrial signals are directly connected to the instrument for measurement, and some signals are connected to the instrument after conversion . The nature of the measurement signal must be understood . 买去的仪表不能用，甚至损坏仪表及原有设备。 Otherwise , the meter cannot be used, and even the meter and the original equipment are damaged. To find out the type of signal: voltage or current, DC or AC, whether it is a pulse signal or a linear signal, etc., you must also understand the size of the signal. The name of the meter is not the same as the input signal.
所有 数显表 都需要工作电源，数显表的工作电源 有不同的种类，所以要根据自己的需要来购选。 In addition, the working power supply is also very important. All digital display meters require working power. There are different types of working power supplies for digital display meters , so you must choose according to your needs. So as not to make mistakes.
几个比较重要的参数要关注一下：响应速度（值越小响应越快）、测量精度（值越小越精确） 、 作环境、过载能力温度系数（值越小受温度影响越小） 。 The last few important parameters should pay attention to: response speed (smaller value, faster response), measurement accuracy (smaller value, more accurate) , operating environment, overload capacity temperature coefficient (smaller value is less affected by temperature) .
主要产品： 电磁流量计 ， 孔板流量计 ， v锥流量计 ， 涡轮流量计 ， 涡街流量计 ， 威力巴流量计 ，旋进旋涡流量计，热电阻，热电偶，双金属温度计，压(差)力变送器，压力表，压力校验仪，校验仿真仪，无纸记录仪，智能射频导纳料位仪，超声波液（物）位计，雷达液位计，磁翻板液位计，安全栅，隔离器等等。 Jinhu Dongxiang Instrument Co., Ltd. main products: electromagnetic flowmeter , orifice flowmeter , v-cone flowmeter , turbine flowmeter , vortex flowmeter , Verabar flowmeter , precession vortex flowmeter, thermal resistance, thermocouple, Bimetal thermometer, pressure (differential) force transmitter, pressure gauge, pressure calibrator, calibration simulator, paperless recorder, intelligent RF admittance level meter, ultrasonic liquid (level) level meter, radar liquid level Gauges, magnetic flap level gauges, safety barriers, isolators and more.