无线压力变送器 PT500-551/433M

型号：PT500-551/433M无线压力变送器
采用进口感压芯片；选进的贴片工艺，具有零点、满量程补偿、温度补偿；
短距离433M/LORA无线发射接收，传输距离100–5000米（视距）；
一体式结构，内部电池供电/电池可拆可充电；
采集方式多样化（仪表采集/PC采集/采集卡/PLC模块等）；
可实现一对一或多对一采集；
高精度、稳定、数字标定调节、放大集成电路；
通讯协议采集RS485-RTU/TTL，可实现低功耗；
不锈钢外壳，不锈钢过程连接,多种压力密封方式；
可替代国外同类型高压产品；

产品优势
规格参数
订购注意事项
使用注意事项
常见问题
我要提建议

型号：PT500-551/433M无线压力变送器

采用进口感压芯片；选进的贴片工艺，具有零点、满量程补偿、温度补偿；
短距离433M/LORA无线发射接收，传输距离100–5000米（视距）；
一体式结构，内部电池供电/电池可拆可充电；
采集方式多样化（仪表采集/PC采集/采集卡/PLC模块等）；
可实现一对一或多对一采集；
高精度、稳定、数字标定调节、放大集成电路；
通讯协议采集RS485-RTU/TTL，可实现低功耗；
不锈钢外壳，不锈钢过程连接,多种压力密封方式；
可替代国外同类型高压产品；

PT500-551-433M/LoRa无线接收模组:
USB 电平，铝合金外壳的工业级无线串口传输模块；
它基于 Semtech 公司的 SX1276/1278 芯片研发的 1Ｗ大功率无线数传模块；
采用了LoRa TM 扩频调制跳频技术高效的接收灵敏度和超强的抗干扰性能；
外部集成 PA 器件使其通信距离，接收灵敏度都远超现在的 FSK、GFSK 调制；
对无线数据进行了 AES128 加密处理，使数据传输更加安全，具有超强的抗干扰性；

空旷传输距离可达 8000 米(低速率/5W）USB 电平接口
工作频段：433/470（1W）MHz 868/915（500mW）MHz

灵敏度高达 -139 dBm
输出功率：5W（+40dBm）/ 2W（+36dBm）/ 1W（+30dBm）/ 500mW（+27dBm）
串口参数设置多样化
LORA 调制模式
通讯频道多达 40 个

PT500-551/433M 无线压力变送器主要应用：
短距离无线水压/水位监控；
短距离无线水压/水位监控；；
远程自动化控制系统等；

Model: pt500-551 / 433M wireless pressure transmitter

Imported pressure sensing chip is adopted; The selected patch process has zero point, full-scale compensation and temperature compensation;
Short distance 433M / Lora wireless transmission and reception, transmission distance 100 – 5000 meters (sight distance);
Integrated structure, internal battery power supply / battery detachable and rechargeable;
Diversified acquisition methods (instrument acquisition / PC acquisition / acquisition card / PLC module, etc.);
One to one or many to one acquisition can be realized;
High precision, stable, digital calibration, adjustment and amplification integrated circuit;
The communication protocol collects rs485-rtu / TTL, which can realize low power consumption;
Stainless steel shell, stainless steel process connection, various pressure sealing methods;
It can replace foreign high-voltage products of the same type;

Pt500-551-433m / Lora wireless receiving module:
USB level, industrial wireless serial port transmission module with aluminum alloy shell;
It is based on the 1W high-power wireless data transmission module developed by Semtech's sx1276 / 1278 chip;
Loratm spread spectrum modulation frequency hopping technology is adopted, which has high receiving sensitivity and strong anti-interference performance;
The external integrated PA device makes its communication distance and reception sensitivity far exceed the current FSK and GFSK modulation;
The wireless data is encrypted by aes128, which makes the data transmission more secure and has strong anti-interference;

Open transmission distance up to 8000 meters (low rate / 5W) USB level interface
Operating frequency band: 433 / 470 (1W) MHz, 868 / 915 (500MW) MHz
Sensitivity up to - 139 dBm
Output power: 5W (+ 40dbm) / 2W (+ 36dbm) / 1W (+ 30dBm) / 500MW (+ 27dBm)
Diversified serial port parameter settings
Lora modulation mode
Up to 40 communication channels

Pt500-551 / 433M wireless pressure transmitter is mainly used in:
Short distance wireless water pressure / level monitoring;
Short distance wireless water pressure / level monitoring;;
Remote automatic control system, etc;

应用领域：

智慧消防
智慧城市
油压系统
消防系统
天然气管道
供气系统

产品家族：

一、技术参数
测量介质：液体、气体（与产品过程连接材料兼容）
压力形式：表压、绝压
量程：
0～100MPa；150 MPa；200 MPa；
250 MPa；300 MPa；350 MPa；400 MPa；;
450 MPa；500 MPa；
-0.1～0～0.6～5MPa;
-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：433M/RS485-RTU
433M/TTL
433M/RS485-RTU（低功耗）

供电电压：

内置电池12VDC

内置电池5VDC
内置电池3.7VDC

接收模块：433M无线接收，5VDC供电,功率100mW/500mW/2W
绝缘阻抗：≥1000 MΩ/100VDC
介质温度：-20～80℃
环境温度：-20～70℃
补偿温度：0～70℃
响应时间：≤500mS(与传输距离有关，通常设定3S～3600S采集一次)
过载压力：150%FS
稳定性：≤±0.15%FS/年
振动影响：≤±0.15%FS/年（机械振动频率20Hz～1000Hz）
破坏压力：3倍量程(量程小于350MPa)；2倍量程(量程大于400MPa)
防护等级：IP65
连接材料：304/316L
过程连接：M20X1.5,G1/2,用户制订规格

接收模块

A、概述：

PT500-551-433M/LoRa无线接收模组，是一款 USB 电平，铝合金外壳的工业级无线串口传输模块，它基于 Semtech 公司的 SX1276/1278 芯片研发的 1Ｗ大功率无线数传模块，该器件采用了 LoRa TM 扩频调制跳频技术高效的接收灵敏度和超强的抗干扰性能，加上外部集成 PA 器件使其通信距离，接收灵敏度都远超现在的 FSK、GFSK 调制，模块对无线数据进行了 AES128 加密处理，使数据传输更加安全，具有超强的抗干扰性。

B、特点

空旷传输距离可达 8000 米(低速率/5W）

USB 电平接口

工作频段：433/470（1W）MHz

868/915（500mW）MHz

灵敏度高达 -139 dBm

输出功率：5W（+40dBm）/ 2W（+36dBm）/ 1W（+30dBm）/ 500mW（+27dBm）

串口参数设置多样化

LORA 调制模式

通讯频道多达 40 个

工作电压范围：4.5 ~ 5.5 V

工作温度范围：-40 ~ +85 °C

C、性能参数

参数	最小	典型	最大	单位	条件
工作电压范围	4.5	5.0	5.5	VDC
工作温度范围	-40	25	85	℃
接收电流		< 30		mA
发射电流		< 600		mA	USB 电平
频率范围	414.92	433.92	453.92	MHZ	@433MHZ
	470.92	490.92	509.92	MHZ	@490MHZ
	849.92	868.92	888.92	MHZ	@868MHZ
	895.92	914.92	934.92	MHZ	@915MHZ
调制速率	91	656	17353	bps	LoraTM
发射功率范围	0	/	+30	dBm	@433MHz -@490MHz
	0	/	+27	dBm	@868MHz @915MHz

Measuring medium: liquid and gas (compatible with product process connecting materials)
Pressure form: gauge pressure and absolute pressure
Range:
0～100MPa； 150 MPa； 200 MPa；
250 MPa； 300 MPa； 350 MPa； 400 MPa；;
450 MPa； 500 MPa；
-0.1～0～0.6～5MPa;
-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:
433M / rs485-rtu
433M/TTL
433M / rs485-rtu (low power consumption)

Power supply voltage:
Built in battery 12VDC
Built in battery 5VDC
Built in battery 3.7VDC

Receiving module: 433M wireless receiving, 5VDC power supply, power 100MW / 500MW / 2W
Insulation impedance: ≥ 1000 m Ω / 100VDC
Medium temperature: - 20 ~ 80 ℃
Ambient temperature: - 20 ~ 70 ℃
Compensation temperature: 0 ~ 70 ℃
Response time: ≤ 500ms (related to transmission distance, usually set 3S ~ 3600s to collect once)
Overload pressure: 150% FS
Stability: ≤± 0.15% FS / year
Vibration influence: ≤± 0.15% FS / year (mechanical vibration frequency 20Hz ~ 1000Hz)
Failure pressure: 3 times the range (the range is less than 350Mpa); 2 times the range (the range is greater than 400MPa)
Protection grade: IP65
Connecting material: 304 / 316L
Process connection: m20x1 5. G1 / 2, specifications formulated by users

PT500-551/433M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RS485-RTU输出，直流12-30VDC供电；
TTL输出，直流3.3-5.0VDC
低功耗RS485-RTU输出，直流3.1-6.1VDC；
订购产品时，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；
压力密封方式：锥度密封、端面密封、弧面密封、球面密封；
安装空间是否满足产品外形尺寸；

Precautions for ordering pt500-551 / 433M 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;

2. Product power supply and output:
The selection of power supply range is determined according to the output specifications of the product:
Conventional rs485-rtu output, DC 12-30vdc power supply;
TTL output, DC 3.3-5.0vdc
Low power consumption rs485-rtu output, DC 3.1-6.1vdc;
When ordering products, please understand the communication protocol first;

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;
Pressure seal mode: taper seal, end face seal, arc seal and spherical seal;
Whether the installation space meets the overall dimension of the product;

产品供电12-24VDC（范围：9-30VDC）（定制产品注意产品合格证及）；

严禁使用硬物（如：螺丝刀、手指、铁钉等）去使得压芯体受压力测量输出；

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；

注意保护变送器天线，发射/接收信号较弱时，建议采集延长天线连接线；

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；

高压产品密封件使用紫铜材料；高压压力产品，调试使用过程中注意对产品做好防护，避免在调试或使用过程中，压力泄露伤及周围人员或损坏设备；

尽量避免直接接近引起干扰的用户装置或电器；

Product power supply: 12-24vdc (range: 9-30vdc) (for customized products, pay attention to product certificate and);

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

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 the protection of the transmitter antenna. When the transmitting / receiving signal is weak, it is recommended to extend the antenna connection line for acquisition;

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

The seals of high-pressure products are made of red copper; During the commissioning and use of high-pressure products, pay attention to the protection of the products to prevent the pressure leakage from hurting the surrounding personnel or damaging the equipment during the commissioning or use;

Try to avoid direct access to user devices or electrical appliances causing interference;

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