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TKWL-1800电动浮筒液位计

TKWL-1800电动浮筒液位计

TKWL-1800Electric Float Liquid Level Meter

概述

  智能浮筒液位计依据力平衡原理,在早期浮筒液位计的基础上采用最新的传感结构,使传感器与 杠杆机构合二为一,可直接测量浮筒在液体中所受 的浮力,很好地解决了静压的影响。本仪表具有耐 高温、耐高压的突出特点,为解决高温高压容器内 的液位测量提供了良好的方法,并且该仪表具有精 度高、可靠性好、调整方便、测量范围广、经久耐 用、性能价格比高等优点。适合工艺流程中敞口或 带压容器内的液位、界位、密度的连续测量,广泛 应用于石油、化工、电力、食品、水利、冶金、热 力、水泥和污水处理等行业。该仪表符合二线制4~20mA传输协议,并有本安型、隔爆型、液晶指示型、电池型、Hart型以及多种安装形式,为用户提供了非常广阔的选择空间。另外高质量的电路及传 感系统,保证了在各种应用场所的优良性能。

Overview

  According to the principle of equilibrium,based on the earlier float liquid level meter, the intelligent floater liquidlevel  meter adopts the latest sensorstructure to make the sensor and the leverage become one, which can directlymeasure the buoyancy of the float in the liquid, thus well solving theinfluence of static pressure. This instrument has outstanding features of hightemperature and high pressure resistance, which provides a good method to dealwith the liquid level measurement inside high- temperature and high pressurevessels. Besides, this instrument is of high precision, good reliability,simple adjustment, wide range of measurement, durable service and high costperformance. It is applicable to the continuous measurement of the liquidlevel, boundary and density inside the open or pressure vessels in thetechnological process, so it is widely applied to industries like petroleum,chemical engineering, electricity, food, water conservancy, metallurgy, heatingpower, cement and sewage treatment. This instrument accords with the two-wiresystem 4~20mA transport protocol, and it has multiple installation methods likeintrinsic safety type, flame-proof type, liquid crystal indication type,battery type and Hart type, thus offering users a wide range of selections.Besides, the high-quality circuit and sensor system guarantees its goodperformance in various applications.

主要特点

1.三行液晶数字显示。

2.耐高温高压、抗振性能好、质量稳定、性能可靠。

3.采用系列化设计,多种安装方式,实用面广,可装于各种储灌和过程罐,各种常压罐和压力容器。 

4.智能化结构设计,具有参数设定、标校及故障提示功能。

5.标准的二线制4~20mA 输出,无需专用二次仪表, 并可与计算机连接。

6.具有温度补偿和软件修正功能。

7.具有去零功能及中间点标校功能。

Main  Features

1 Three-line liquid crystal digitaldisplay.

2.High temperature and high pressureresistance, good resistance to shock, stable quality and reliableperformance.

3.Serialized design,multiple installation methods and wide range  of application; it can be installed to various storagetanks, processing tanks, various ordinary pressure tanks and pressure vessels.

4.Intelligentstructuredesign,functionsofparameter determination,calibration and malfunction prompt.

5.Standard two-wire 4~20mA output, no need of secondarymeters,able to be connected to thecomputer.

6.  Functions of temperaturecompensation and softwarerevision.

7.   Functions of zero-suppression and intermediate point calibration.

结构原理

结构

智能浮筒液位计由浮筒、指示器、传感器三部分组成,如图所示:

( 1 )液晶指示器 ( 2 )传感器( 3 )浮筒

Structure   Principle、

Structure

The intelligent float liquidlevel meter is made up of a float, an indicator and a sensor, as shown in thefigure:

(1)Liquid crystalindicator(2)Sensor(3)Float

工作原理

  浮筒受到液体向上浮力 F 后通过浮力杆将浮力 F 作用到传感器上,如图二所示:传感器电压输出:即:V ∝ F 因 为浮筒浸没液体的高度与所受到的浮力成正比,因此,浮力的变化通过传感器电压输出就变换成对应的液体高度,并通过A/DCPUD/A转换成标准的4~20mA电流输出,如图三 所示:

WorkingPrinciple

Receiving the upward buoyancy Fof the liquid, the float makes the buoyancy F  work  on the  sensor  through the  buoyancy  pole, as shown in figure 2: as to thesensor’s voltage output, i.e. V  ∝ F, because of the  direction proportion betweenthe  float’s height of immersing in the liquid and the buoyancy it receives, the change of the buoyancy is converted to corresponding liquid height through  the sensor’s voltage output, which is then changed into standard 4~20mA current output through A/DCPUD/A, as shown in figure 3.

技术参数

测量范围:0.3~6m(特殊尺寸可订购)

精度等级: 1.0、0.5(特殊型)

输出信号: 4~20mA DC 二线制, 可带 HART 协议 

供电电源:标准型:24VDC二线制4~20mA(12VDC-32VDC)

电池型: 3.6V@19AH 锂电池,可连续使用一年 

公称压力: 最大 16MPa(特殊规格可订购) 

环境温度:-40℃~+85℃(液晶不会损坏)液晶正常工作—30℃~+80℃

介质温度:常温-40℃ ~100 ℃(散热片) 高温100℃ ~200 ℃(带散热片)超高温 200~450 (带散热片及夹套装置)

介质密度:液位p≥0.4g/cm3界位p1-p2≥0.1g/cm3

接液材质:测量室为碳钢或1Cr18Ni9Ti1Cr18Ni9Ti

壳材质:铸铝

连接法兰:内浮筒 DN30 PN4.0法兰标准 DIN2501

外浮筒侧法兰DN50 PN4.0主体法兰 DN50 PN4.0 法兰 标准DIN2501

特殊型: 由户选择

电缆接口:隔爆型为M20*1.5内螺纹1/2NPT内螺纹,

其它液晶显示:主屏液位显示数值范围: 0~50000(可带小数点)付屏百分比显示保留一位小数 

防爆标志:本安型 iaCT5 隔爆型 dBT6 

防护等级: Ip65

负载特性: Rlmax=50*(电源电压-12)Ω=600Ω@24V

Technical  Parameter

Measurementrange:0.3~6m (specialsizes can be customized) 

Accuracy grade: 1.0 ,0.5(special type)

Output signal: 4~20mA DCtwo-wire system, which can be equipped with HART protocol

Power supply:standard: 24VDCtwo-wire system 4~20mA(12VDC- 32VDC)

Battery type: 3 . 6 V@ 19 AH li thium battery, which can be continuously used for a year

Nominal pressure: 16MPa at themaximum (special grades can be customized)

Environmenrface: flame-prooftype adopts 1/2NPT internal thread, others adopt M20*1.5 internal thread

Liquid crystal display: numberrange of liquid level dt   

temperature:—40~+85℃ (the liquid crystal can’t be damaged), liquidcrystal’s 

normal operation —30~+80

Medium temperature:normal temperature —40cooling fin)

High temperature: 100~200 (with cooling fin)~100(noSuperhigh temperature 200~450(with cooling fin and jacket device)

Medium density: liquid level p0.4g/cm3

boundary p1-p20.1g/cm3

Connecting liquid material: the measuring room uses carbonsteel   or 1Cr18Ni9Ti. Others use1Cr18Ni9Ti

Shell material: cast aluminium

Connecting flange: internalfloat DN30 PN4.0 Flange standard DIN2501

External float side flange DN50PN4.0 Body flange DN50 PN4.0

Flange standard DIN2501 Specialtype: chosen by users

Cable inteisplay on the mainscreen: 0-50000 (with decimal    point)

the percentage display of thesecondary screen reserves a decimal

Explosion-proof sign: intrinsicsafety type iaCT5 Flame-proof type dBT6

Protection grade: Ip65

Load characteristics: Rlmax=50*(supply voltage-12)Ω =600Ω@24V



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