差压液位变送器(模拟)阻尼调校方法该怎么调?

来源:液位变送器生产厂家 发布时间:2020-10-09 17:12:59 浏览次数:

电容式压力变送器(模拟)零点、量程、迁移、线性和阻尼调校方法
Calibration methods of zero point, range, migration, linearity and damping of capacitive pressure transmitter (Analog)
模拟型)迁移调整步骤如下:
The migration adjustment steps are as follows:
A、在迁移前先调到需要的量程,如:需要3-5kPa的测量范围,则先将量程调到0-2kPa,然后再进行迁移。
A. Before the migration, adjust the range to the required range. For example, if the measurement range of 3-5kpa is required, adjust the range to 0-2kpa first, and then conduct the migration.
B、如果迁移量不大,当正迁移时,在不加输入压力的情况下,则可直接调零点电位器,使输出小于4mA,然后输入正迁移时的压力值,使变送器输出为4mA。
B. If the migration is not large, in the case of positive migration and without input pressure, the zero potentiometer can be directly adjusted to make the output less than 4mA, and then input the pressure value during forward migration to make the transmitter output 4mA.
C、迁移量过大时,则需拨动迁移开关,即根据正负迁移的需要来拨动正负迁移开关,然后输入给定的量程起始点压力,调节电位器使输出为4mA。
C. When the migration is too large, it is necessary to toggle the migration switch, that is, according to the needs of positive and negative migration, the positive and negative migration switch is turned, and then the given starting point pressure of the range is input, and the potentiometer is adjusted to make the output of 4mA.
D、*后校对测量上限,当输入压力为测量上限时其输出应为20mA,如有偏差可微调量程电位器。
D. When the input pressure is the upper limit of measurement, the output should be 20mA. If there is deviation, the range potentiometer can be adjusted.
③电容式压力变送器(模拟型)线性调整方法
③ Linear adjustment method of capacitive pressure transmitter (analog type)
差压液位变送器(模拟)阻尼调校方法该怎么调?
How to adjust the damping adjustment method of differential pressure level transmitter (Analog)?
电容式压力变送器的线性在出厂时都已调到*佳状态,一般不用调整。如果量程改动较大,并要求在某一特定测量范围有很好的线性时,应做线性调整,其步骤如下:
The linearity of capacitive pressure transmitter has been adjusted to a good state when leaving the factory, so it is generally not necessary to adjust. If the range changes greatly and requires good linearity in a specific measurement range, the linear adjustment should be made. The steps are as follows:
a、输入所调量程的中间测量范围的压力值,记下输出信号的理论值和实际值。
a. Input the pressure value of the middle measuring range of the adjusted range, and record the theoretical value and actual value of the output signal.
b、输入所调量程的压力值,调整线性电位器使输出为:
b. Input the pressure value of the adjusted range and adjust the linear potentiometer to make the output as follows:
④电容式压力变送器(模拟型)阻尼调整方法
④ Damping adjustment method of capacitive pressure transmitter (analog type)
阻尼是用来抑制被测参效由于输入波动引起的输出快速波动。其时间常数为0.2-1.67s,出厂时阻尼器已反时针调整至极限位置,阻尼时间为0.2s。在应用中*好选择*短的阻尼时间,由于电容式压力变送器校准不受阻尼调整的影响,所以,*好在现场根据实际调整阻尼时间,顺时针转动阻尼器来选择所需要的阻尼时间。
Damping is used to suppress the fast output fluctuation caused by input fluctuation. The time constant of the damper is 0.2-1.67s. The damper has been adjusted to the limit position anticlockwise and the damping time is 0.2S. In application, it is better to choose * short damping time. Since the calibration of capacitive pressure transmitter is not affected by damping adjustment, it is better to adjust damping time according to actual situation and rotate damper clockwise to select the required damping time.
当实际值<理论值时,用加号;当实际值>理论值时,用减号。
When the actual value is less than the theoretical value, use the plus sign; when the actual value is greater than the theoretical value, use the minus sign.
c、重新调整量程和零点。
c. Rerange and zero.
差压液位变送器(模拟)阻尼调校方法该怎么调?
How to adjust the damping adjustment method of differential pressure level transmitter (Analog)?
差压变送器的安装要求:
Installation requirements of differential pressure transmitter:
1、差压变送器在工艺管道上的安装位置与被测介质有关,为了获得较好的安装效果,应注意考虑下面情况:
1. The installation position of differential pressure transmitter on the process pipeline is related to the measured medium. In order to obtain better installation effect, the following conditions should be considered:
a.防止变送器与腐蚀性或过热的被测介质直接接触;
a. Prevent the transmitter from contacting with corrosive or overheated media;
b.防止渣滓在引压管内沉积,堵塞;
b. Prevent dross from depositing and blocking in the impulse pipe;
c.正负压两侧引压管的长度应尽量相同;
c. The length of impulse pipe on both sides of positive and negative pressure should be the same as possible;
d.正负压两侧引压管内的液柱压头应保持平衡;
d. The pressure head of liquid column in the pressure pipe on both sides of positive and negative pressure should be balanced;
e.引压管安装在温度梯度和温度波动*小的地方。
e. The impulse pipe is installed in the place where the temperature gradient and temperature fluctuation are small.
未来的压力变送器行业肯定是越做越精,一些品牌企业会不断的提升产品的竞争力,完善配套措施的服务,同时会加速开发变送器的附加值产品,丰富产品系列,不再只做某一项的单一产品,增加技能型的功效延伸,方便客户的日常使用,带动整个行业技术标准质的飞跃,使得压力变送器真正进入科技化发展方向。
The future pressure transmitter industry is sure to be more and more refined, some brand enterprises will continue to improve the competitiveness of products, improve the service of supporting measures, and at the same time, accelerate the development of value-added products of transmitters, enrich product series, no longer only do a single product of a certain item, increase the effect extension of skill type, facilitate the daily use of customers, and drive the technical standard quality of the whole industry With the rapid development of science and technology, the pressure transmitter has entered the direction of scientific and technological development.
差压液位变送器(模拟)阻尼调校方法该怎么调?华恒变送器厂家凭借自身拥有的传感器和智能电路板核心技术,华恒仪表实现了核心技术的从无到有,不断地提高工业自动化仪表的精确度,仪表性能标准对标国际技术,完成产品迭代升级,满足用户需求的个性定制。近年来,公司又与西安交通大学、西北工业大学和西安理工大学等高校建立了紧密的技术合作关系,合作项目有油气两相流,多相流,高性能发动机测试,风洞试验装置等项目。
How to adjust the damping adjustment method of differential pressure level transmitter (Analog)? With the core technology of sensor and intelligent circuit board owned by Huaheng transmitter manufacturer, Huaheng instrument has realized the core technology from scratch, continuously improving the accuracy of industrial automation instrument, benchmarking international technology of instrument performance standard, completing product iterative upgrading, and personalized customization to meet the needs of users. In recent years, the company has established close technical cooperation relationship with Xi'an Jiaotong University, northwest Polytechnic University and Xi'an University of technology. The cooperation projects include oil-gas two-phase flow, multiphase flow, high-performance engine test, wind tunnel test equipment and other projects.


上一篇:3151/3051插入筒液位计在储油罐(两)大重要腐蚀因素处理

下一篇:3151/3051稳定型双法兰液位变送器泔水如何实现油水分离

相关热词搜索:


差压 液位 变送器