专用压力变送器 - 佛山市普量电子有限公司

产品优势：

型号：PT500-590

采用进口感压芯片；选进的贴片工艺；
压力、温度一体化，同时测量，轮巡显示；
压力温度一体LCD显示表头，5位显示；
多种压力单位切换；数值显示，百分比显示；
供电方式：内置电池3.6VDC供电，或外部电源5VDC/24VDC供电；
高精度、稳定、数字标定调节、放大集成电路；
数字输出信号Modbus RS485-RTU通讯协议；
工业级2088铸铝合金防爆壳体，强度可靠坚固；
可替代国外同类型产品；

常用关键字：
温压一体 RS485-RTU 低功耗数字显示隔爆型压力变送器
高精度多点温度压力补偿电池供电外部供电压力传感器
数显压力表压力数显表压力控制表
气压表液压表差压表微压表高压表
电池供电压力表低功耗压力表
LCD压力表 LCD压力传感器 LCD压力变送器

精密压力表精密数显压力表

Model: PT500-590
Imported pressure sensing chip is adopted; Selected patch process;
Integrated pressure and temperature, simultaneous measurement and wheel patrol display;
Pressure and temperature integrated LCD display meter, 5-digit display;
Switching of multiple pressure units; Numerical value display, percentage display;
Power supply mode: 3.6vdc power supply from built-in battery or 5VDC / 24VDC power supply from external power supply;
High precision, stable, digital calibration, adjustment and amplification integrated circuit;
Digital output signal Modbus rs485-rtu communication protocol;
Industrial grade 2088 cast aluminum alloy explosion-proof shell, reliable and solid strength;
It can replace foreign products of the same type;

Common keywords:
Temperature pressure integrated rs485-rtu low power digital display flameproof pressure transmitter
High precision multipoint temperature and pressure compensation battery powered external powered pressure sensor

芯片：
采用进口感压芯片；选进的贴片工艺；
零点、满度，温补、线性补偿；
高阻抗、高精度、高稳定性；
100万次使用寿命以上；

信号处理及输出：
采用先进的 32bit微处理器和24bit ADC；
超低功耗设计，超低功耗 RS485设计；
多点曲线拟合技术；
电池电量采集管理；
独立双通道采集，一体化设计，可做单独压力、单独温度，也可做温压一体；
位液晶 8 段数码显示，无视值误差；
动态背光管理，最大程度方便操作，最大程度节省功耗；
支持用户清零、反清零、用户校准、恢复出厂等操作；
采集间隔 0~65535 秒可设，可根据现场情况设置，最大限度降低功耗；
支持 modbus-rtu 协议的自由组态，用户可以制作私有 RS485 协议；

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；
工业级2088铸铝合金防爆壳体，强度可靠坚固；
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：
油压、水压、气压压力测量与监控；
工业/电力/石油/自动化等领域的设备压力测量；

Chip:
Imported pressure sensing chip is adopted; Selected patch process;
Zero point, full degree, temperature compensation and linear compensation;
High impedance, high precision and high stability;
More than 1 million times of service life;

Signal processing and output:
Adopt advanced 32bit microprocessor and 24bit ADC;
Ultra low power design, ultra low power RS485 design;
Multipoint curve fitting technology;
Battery power collection and management;
Independent dual channel acquisition and integrated design, which can be used as separate pressure, separate temperature and temperature pressure integration;
8-bit LCD 8-segment digital display, ignoring the value error;
Dynamic backlight management, convenient operation to the greatest extent and save power consumption to the greatest extent;
Support user reset, de reset, user calibration, factory recovery and other operations;
The acquisition interval is 0 ~ 65535 seconds, which can be set according to the site conditions to minimize power consumption;
Support the free configuration of Modbus RTU protocol, and users can make private RS485 protocol;

Structure:
Thick film structure: deep argon arc welding, connecting elastic materials and process joints, high strength, impact resistance and fatigue resistance;
PU membrane structure: laser welding, connecting elastic materials and process joints, silicone oil medium to transfer pressure, fast response, fatigue resistance, small range;
Industrial grade 2088 cast aluminum alloy explosion-proof shell, reliable and solid strength;
Small overall structure and diversified process connection modes (m20x1.5, G1 / 2, ZG1 / 2, 1 / 2NPT (thread diameter ≥ 17mm), DN50, etc.);
Process connection material: 304 or 316;

Application:
Oil pressure, water pressure and air pressure measurement and monitoring;
Equipment pressure measurement in industrial / power / Petroleum / automation and other fields;

应用领域：

智慧消防
智慧城市
油压系统
送风系统

产品家族：

规格参数

一、主要技术参数
测量介质：液体、气体、蒸汽等
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：
RS485-RTU（低功耗）(四线制)
LCD5位显示表头

供电电压：
内置3.6VDC1200mAh电池（14250规格）
外部电源：24VDC
外部电源：5VDC

采集频率：1-3600S/次，可设定（数据更新频率）
寿命：≥100万次
绝缘阻抗：≥1000 MΩ/100VDC
功耗：待机电流小于50uA，采集电流小于1.5mA
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：防水紧线螺母直接出线，可配套防爆电气连接
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

Main technical parameters
Measuring medium: liquid, gas, steam, etc
Pressure form: gauge pressure and absolute pressure

Range:
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；

Comprehensive accuracy: ± 0.25% FS; ±0.5%FS； ±1%FS
Nonlinearity: ≤ 0.25% FS
Repeatability: ≤ 0.1% FS

Output signal:
Rs485-rtu (low power consumption) (four wire system)
Lcd5 digit display meter

Supply voltage:
Built in 3.6vdc1200mah battery (14250 specification)
External power supply: 24VDC
External power supply: 5VDC

Acquisition frequency: 1-3600s / time, settable (data update frequency)
Service life: ≥ 1 million times
Insulation impedance: ≥ 1000 m Ω / 100VDC
Power consumption: the standby current is less than 50ua, and the acquisition current is less than 1.5mA
Medium temperature: - 20 ~ 80 ℃
Ambient temperature: - 20 ~ 70 ℃
Temperature compensation: 70 ～ 0 ℃
Response time: ≤ 5ms
Overload pressure: 150% FS
Failure pressure: 3 times the range (the range is less than 40MPa); 2 times the range (the range is greater than 41mpa)
Electrical connection: the waterproof tightening nut directly leads out, which can be matched with explosion-proof electrical connection
Protection grade: IP65
Connecting cable: four core shielded cable, standard length: 3M
Connecting material: 304/316L
Process connection: M20x1.5 G1/2, ZG1/2, 1/2NPT, DN50... Specifications can be formulated by users

订购注意事项

PT500-590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%；
温度量程：测量温度介质区分，所需产品是测量介质温度或是测试环境温度，订购时与销售人员说明情况；

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：
A、内置电池3.6V1200mAh；
B、外部5VDC供电；
C、外部9-24VDC供电；
常规Modbus RS485-RTU 低功耗型数字输出；
5位LCD显示表头；默认采集时间1S/次；

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；

Precautions for ordering PT500-590 products

1. Product range selection:
In order to achieve the best effect of product accuracy, service life, stability and other functions, the range of the product is calculated according to the following formula:
Range = x (1.2-1.5) times the maximum pressure of the system;
The actual measuring pressure range of the product should be 15% - 80% of the measuring range;
Temperature range: distinguish between measuring temperature and medium. The required product is measuring medium temperature or testing ambient temperature. Explain the situation with the salesperson when ordering;

2. Product power supply and output:
The selection of power supply range is determined according to the output specifications of the product:
A. Built in battery 3.6v1200mah;
B. External 5VDC power supply;
C. External 9-24vdc power supply;
Conventional Modbus rs485-rtu low-power digital output;
5-digit LCD display meter; The default acquisition time is 1s / time;

3. Users need to understand the characteristics of the measuring medium of the product:
Medium specification, medium temperature, medium purity (whether it contains 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 grade;
Vibration range of equipment;
Installation method: thread, flange and 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，内部电池供电：3.6VDC，外部电源5VDC或24VDC；
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；
电池安装、外接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, internal battery power supply: 3.6vdc, external power supply 5VDC or 24VDC;

It is forbidden to use hard objects (such as screwdriver, finger, iron nail, etc.) to make the pressure diaphragm subject to pressure measurement output;

The battery installation, external power supply and signal line shall be wired correctly according to the specifications of the ordered products;

When installing the product, the stressed part is "process connection hexagonal wrench position", and the wrench specification corresponds to the hexagonal wrench position;

It is strictly prohibited that the medium temperature, pressure range and excitation voltage of the measured system exceed the rated service range of the transmitter;

Pay attention to protect the outgoing cable of the transmitter. When the span is too large, it is recommended to use metal pipe for protection or overhead;

The pressure transmitter is a precision measuring instrument. Do not impose impact and beating to avoid damaging the core

The product is installed in a ventilated, dry and non corrosive environment. Protective devices are installed in the open air to avoid direct sunlight;

Water / water leakage / soaking is strictly prohibited for product instruments. Protective devices shall be installed in the open air to avoid direct sunlight;

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