平膜隔膜压力变送器 PT500-703
型号:PT500-703
平膜/隔膜感压防堵结构设计,适用于熔体/流体介质;
采用进口感压芯片;选进的贴片工艺;
高精度、稳定、数字标定调节、放大集成电路;
输出信号类型广泛,4-20mA/0-20mA/0-5V/10V/RS485-RTU及低功耗RS485
结构小巧,直径27mm,适用于安装空间微小的设备;
100万次使用寿命以上;
可替代国外同类型高压产品;

常用关键字:
平膜压力变送器 平面膜压力传感器 厚膜压力变送器
隔膜压力变送器 齐平膜压力传感器 防堵压力变送器
无腔压力变送器 沥青压力传感器 油漆压力传感器
产品优势:

芯       片:
平膜/隔膜感压防堵结构设计,适用于熔体/流体介质;
采用进口感压芯片;选进的贴片工艺;
高阻抗、高精度、高稳定性;
膜片结构:厚膜型压阻式、溥膜型硅芯片、法兰型大膜片;
100万次使用寿命以上;

信号处理及输出:
24位ADC采样处理芯片;
DSP数字信号调理算法;
多点性线温度校准;
电压电流过载保护;
标准工业信号输出:4-20mA(二线制),0-20mA(三线制),0-5VDC,0-10VDC,0.5-4.5VDC(三线制);
数字通讯信号输出:RS485-RTU、超低功耗RS485-RTU
采用先进的32bit微处理器和24bit ADC
传输协议采用通用的MODBUS-RTU协议
支持波特率:1200~57600bps,校验位:NONE、ODD、EVEN
支持用户二次校准、清零、反清零、恢复出厂等操作
支持11种单位切换,支持浮点型、整型、百分比、格式化输出
采集间隔0~43200秒(12小时)可设,既可连续采集,满足高速采集的场合,也可单次触发采集,最大限度降低功耗

结       构:
厚膜结构:深度氩弧焊接,连接弹性材料与过程接头,强度高,抗冲击,耐疲劳;
溥膜结构:激光焊接,连接弹性材料与过程接头,硅油介质传递压力,响应快,耐疲劳,小量程;
整体结构小巧,过程连接方式多样化(M20X1.5,G1/2 ,ZG1/2,1/2NPT(螺纹小径≥17mm)DN50等);
过程连接材料:304或316;

应      用:
熔体/流体/粘稠性介质压力测量与控制;
工业/电力/石油/自动化等领域的设备压力测量


Chip:
Flat film / diaphragm pressure sensing and anti blocking structure design, suitable for melt / fluid medium;
Adopt imported pressure sensitive chip; select the chip technology;
High impedance, high precision and high stability;
Diaphragm structure: thick film piezoresistive, thin film silicon chip, flange type large diaphragm;
More than 1 million service life;

Signal processing and output:
24 bit ADC sampling processing chip;
DSP digital signal conditioning algorithm;
Multipoint line temperature calibration;
Voltage and current overload protection;
Standard industrial signal output: 4-20mA (two-wire system), 0-20mA (three wire system), 0-5vdc, 0-10vdc, 0.5-4.5vdc (three wire system);
Digital communication signal output: rs485-rtu, ultra-low power rs485-rtu
Advanced 32bit microprocessor and 24bit ADC
The transmission protocol adopts the general MODBUS-RTU protocol
Support baud rate: 1200 ~ 57600bps, check bit: none, odd, even
It supports the user's secondary calibration, clearing, anti clearing, factory restoration and other operations
Supports 11 unit switches, floating point, integer, percentage, format output
The acquisition interval of 0-43200 seconds (12 hours) can be set, which can not only continuously acquire, but also meet the occasion of high-speed acquisition, and can trigger acquisition once, minimizing power consumption

Structure:
Thick film structure: deep argon arc welding, connecting elastic material and process joint, high strength, impact resistance, fatigue resistance;
Thin film structure: laser welding, connecting elastic materials and process joints, silicon oil medium transfer pressure, fast response, fatigue resistance, small range;
The overall structure is small and the process connection mode is diversified (m20x1.5, G1 / 2, ZG1 / 2, 1 / 2NPT (thread diameter ≥ 17mm) DN50, etc.);
Process connection material: 304 or 316;

Application:
Melt / fluid / viscous medium pressure measurement and control;
Equipment pressure measurement in industry / power / oil / automation and other fields

应用领域:
  • 油压系统

  • 冶金设备

  • 石油化工

  • 石油管道

规格参数
一、技术参数
测量介质:熔体、流体、含有杂质的液体、气体(如:油漆、牙膏、颜料等)
压力形式:表压、绝压
量    程:0~0.6、1、2、5、10、15、20、25、30、40、50、60、100(MPa);
0~10、20、30、50、100、150、200、300、400、500、600(KPa);
-100KPa~10KPa~40MPa;
±10KPa~±100KPa;
综合精度:±0.25%FS;±0.5%FS;±1%FS
非 线 性:≤0.25%FS
重 复 性:≤0.1%FS

输出信号:

电流型:4~20mA二线制;4~20mA/0-20mA三线制

电压型:0~5VDC、0~10VDC、0.5~4.5VDC三线制
数字型:RS485-RTU、低功耗RS485-RTU

供电电压:

24VDC(9~30VDC)

3.1~6.1VDC(低功耗RS485-RTU)

5VDC(0.5~4.5VDC输出型)
寿    命:≥100万次
绝缘阻抗:≥1000 MΩ/100VDC
负载阻抗:电流输出: ≤800Ω;电压输出:≥50KΩ
介质温度:-20~80℃
环境温度:-20~70℃
补偿温度:0~70℃
响应时间:≤5mS
过载压力:150%FS
破坏压力:3倍量程(量程小于40MPa);2倍量程(量程大于41MPa)
电气连接:DIN43650赫斯曼标准电气连接器
防护等级:IP65
连接电缆:四芯屏蔽电缆,标准长度:3米
连接材料:304/316L
过程连接:M20X1.5,G1/2,ZG1/2,1/2NPT,DN50……可用户制订规格

二、规格型号

三、结构尺寸

四、电气连接

五、安装方式


订购注意事项
PT500-703产品订购注意事项
1、产品量程选择:
为了使产品精度、寿命、稳定性等功能达到最佳效果,产品的量程选择参照以下公式计算:
量程 = 系统最大压力 X (1.2-1.5)倍;
产品的实际测量压力范围,应该在量程范围的15%-80%;

2、产品供电及输出:
供电范围的选择按产品的个输出规格确定:
常规4-20mA/0-20mA、0-5V/10V输出,直流12-30VDC供电;
通用RS485-RTU输出,直流12-30VDC供电;
0.5-4.5VDC输出,直流5VDC;
低功耗RS485-RTU输出,直流3.1-6.1VDC;
RS485-RTU输出时,请先了解通讯协议;

3、用户要了解产品的测量介质特性:
介质规格、介质温度、介质纯度(是否含有杂质或颗粒等);

4、用户要了解产品的安装环境及安装方式:
室内或室外安装;
环境温度;
要求的密封等级;
设备的振动范围;
安装方式:螺纹、法兰、特殊结构;
安装空间是否满足产品外形尺寸;

1. Product range selection:
In order to achieve the best effect of product accuracy, life, stability and other functions, the range selection of the product is calculated by referring to the following formula:
Range = x (1.2-1.5) times of the maximum system pressure;
The actual measuring pressure range of the product should be 15% - 80% of the range;

2. Product power supply and output:
The selection of power supply range is determined according to the output specifications of the product:
Conventional 4-20mA / 0-20mA, 0-5V / 10V output, DC 12-30vdc power supply;
General rs485-rtu output, DC 12-30vdc power supply;
0.5-4.5vdc output, DC 5VDC;
Low power rs485-rtu output, DC 3.1-6.1vdc;
When output rs485-rtu, please understand the communication protocol first;

3. The user should understand the measurement medium characteristics of the product:
Medium specification, medium temperature, medium purity (whether containing impurities or particles, etc.);

4. Users should understand the installation environment and installation method of the product:
Indoor or outdoor installation;
Ambient temperature;
Required sealing level;
Vibration range of equipment;
Installation method: thread, flange, special structure;
Whether the installation space meets the overall dimension of the product;
使用注意事项
产品供电范围,9-30VDC(低功耗RS485输出型为3.1-5VDC);
严禁使用硬物(如:螺丝刀、手指、铁钉等)去使得压力膜片受压力测量输出;
电源和信号线按订购产品规格要求,正确接线;
产品安装时,受力部位为“过程连接六方扳手位”,扳手规格与六方相对应;
严禁被测系统的介质温度、压力量程、激励电压超过变送器的额定使用范围;
注意保护变送器引出电缆,现场使用跨度过大时,建议使用金属管保护或架空;
压力变送器属精密计量仪器,切勿强加冲击、摔打,以免损坏芯体
产品安装于通风、干燥、无强腐蚀环境,露天安装加防护装置,避免阳光直接照射;
产品仪表严禁进水/漏水/泡水情况,露天安装加防护装置,避免阳光直接照射;

Product power supply range, 9-30vdc (low power RS485 output type is 3.1-5vdc);
It is strictly prohibited to use hard objects (such as screwdriver, finger, iron nail, etc.) to make the pressure diaphragm output under pressure measurement;
The power and signal wires shall be correctly wired according to the specifications of the ordered products;
During product installation, the stressed part is "process connection hexagon wrench position", and the wrench specification corresponds to hexagon;
It is strictly prohibited that the medium temperature, pressure range and excitation voltage of the tested system exceed the rated use range of the transmitter;
Pay attention to protect the outgoing cable of the transmitter. When the span is too large on site, it is recommended to use metal pipe for protection or overhead;
The pressure transmitter is a precision measuring instrument. Do not impose impact or smash to avoid damaging the core
The product is installed in a ventilated, dry and non corrosive environment, and installed in the open with protective devices to avoid direct sunlight;
It is strictly prohibited to enter / leak / soak water in the product instrument, and protective devices shall be installed in the open to avoid direct sunlight;

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