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產(chǎn)品優(yōu)勢(shì)：

型號(hào)：PT500-551/433M無(wú)線壓力變送器

采用進(jìn)口感壓芯片；選進(jìn)的貼片工藝，具有零點(diǎn)、滿量程補(bǔ)償、溫度補(bǔ)償；
短距離433M/LORA無(wú)線發(fā)射接收，傳輸距離100–5000米（視距）；
一體式結(jié)構(gòu)，內(nèi)部電池供電/電池可拆可充電；
采集方式多樣化（儀表采集/PC采集/采集卡/PLC模塊等）；
可實(shí)現(xiàn)一對(duì)一或多對(duì)一采集；
高精度、穩(wěn)定、數(shù)字標(biāo)定調(diào)節(jié)、放大集成電路；
通訊協(xié)議采集RS485-RTU/TTL，可實(shí)現(xiàn)低功耗；
不銹鋼外殼，不銹鋼過程連接,多種壓力密封方式；
可替代國(guó)外同類型高壓產(chǎn)品；

PT500-551-433M/LoRa無(wú)線接收模組:
USB 電平，鋁合金外殼的工業(yè)級(jí)無(wú)線串口傳輸模塊；
它基于 Semtech 公司的 SX1276/1278 芯片研發(fā)的 1Ｗ大功率無(wú)線數(shù)傳模塊；
采用了LoRa TM 擴(kuò)頻調(diào)制跳頻技術(shù)高效的接收靈敏度和超強(qiáng)的抗干擾性能；
外部集成 PA 器件使其通信距離，接收靈敏度都遠(yuǎn)超現(xiàn)在的 FSK、GFSK 調(diào)制；
對(duì)無(wú)線數(shù)據(jù)進(jìn)行了 AES128 加密處理，使數(shù)據(jù)傳輸更加安全，具有超強(qiáng)的抗干擾性；

空曠傳輸距離可達(dá) 8000 米(低速率/5W）USB 電平接口
工作頻段：433/470（1W）MHz 868/915（500mW）MHz

靈敏度高達(dá) -139 dBm
輸出功率：5W（+40dBm）/ 2W（+36dBm）/ 1W（+30dBm）/ 500mW（+27dBm）
串口參數(shù)設(shè)置多樣化
LORA 調(diào)制模式
通訊頻道多達(dá) 40 個(gè)

PT500-551/433M 無(wú)線壓力變送器主要應(yīng)用：
短距離無(wú)線水壓/水位監(jiān)控；
短距離無(wú)線水壓/水位監(jiān)控；；
遠(yuǎn)程自動(dòng)化控制系統(tǒng)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;

應(yīng)用領(lǐng)域：

智慧消防
智慧城市
油壓系統(tǒng)
消防系統(tǒng)

產(chǎn)品家族：

規(guī)格參數(shù)

一、技術(shù)參數(shù)
測(cè)量介質(zhì)：液體、氣體（與產(chǎn)品過程連接材料兼容）
壓力形式：表壓、絕壓
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

綜合精度：±0.25%FS；±0.5%FS；±1%FS
非線性：≤0.25%FS
重復(fù) 性：≤0.1%FS
輸出信號(hào)：433M/RS485-RTU
433M/TTL
433M/RS485-RTU（低功耗）

供電電壓：

內(nèi)置電池12VDC

內(nèi)置電池5VDC
內(nèi)置電池3.7VDC

接收模塊：433M無(wú)線接收，5VDC供電,功率100mW/500mW/2W
絕緣阻抗：≥1000 MΩ/100VDC
介質(zhì)溫度：-20～80℃
環(huán)境溫度：-20～70℃
補(bǔ)償溫度：0～70℃
響應(yīng)時(shí)間：≤500mS(與傳輸距離有關(guān)，通常設(shè)定3S～3600S采集一次)
過載壓力：150%FS
穩(wěn) 定性：≤±0.15%FS/年
振動(dòng)影響：≤±0.15%FS/年（機(jī)械振動(dòng)頻率20Hz～1000Hz）
破壞壓力：3倍量程(量程小于350MPa)；2倍量程(量程大于400MPa)
防護(hù)等級(jí)：IP65
連接材料：304/316L
過程連接：M20X1.5,G1/2,用戶制訂規(guī)格

接收模塊

A、概述：

PT500-551-433M/LoRa無(wú)線接收模組，是一款 USB 電平，鋁合金外殼的工業(yè)級(jí)無(wú)線串口傳輸模塊，它基于 Semtech 公司的 SX1276/1278 芯片研發(fā)的 1Ｗ大功率無(wú)線數(shù)傳模塊，該器件采用了 LoRa TM 擴(kuò)頻調(diào)制跳頻技術(shù)高效的接收靈敏度和超強(qiáng)的抗干擾性能，加上外部集成 PA 器件使其通信距離，接收靈敏度都遠(yuǎn)超現(xiàn)在的 FSK、GFSK 調(diào)制，模塊對(duì)無(wú)線數(shù)據(jù)進(jìn)行了 AES128 加密處理，使數(shù)據(jù)傳輸更加安全，具有超強(qiáng)的抗干擾性。

B、特點(diǎn)

空曠傳輸距離可達(dá) 8000 米(低速率/5W）

USB 電平接口

工作頻段：433/470（1W）MHz

868/915（500mW）MHz

靈敏度高達(dá) -139 dBm

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

串口參數(shù)設(shè)置多樣化

LORA 調(diào)制模式

通訊頻道多達(dá) 40 個(gè)

工作電壓范圍：4.5 ~ 5.5 V

工作溫度范圍：-40 ~ +85 °C

C、性能參數(shù)

參數(shù)	最小	典型	最大	單位	條件
工作電壓范圍	4.5	5.0	5.5	VDC
工作溫度范圍	-40	25	85	℃
接收電流		< 30		mA
發(fā)射電流		< 600		mA	USB 電平
頻率范圍	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
調(diào)制速率	91	656	17353	bps	LoraTM
發(fā)射功率范圍	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

訂購(gòu)注意事項(xiàng)

PT500-551/433M產(chǎn)品訂購(gòu)注意事項(xiàng)

1、產(chǎn)品量程選擇：
為了使產(chǎn)品精度、壽命、穩(wěn)定性等功能達(dá)到最佳效果，產(chǎn)品的量程選擇參照以下公式計(jì)算：
量程 = 系統(tǒng)最大壓力 X （1.2-1.5）倍；
產(chǎn)品的實(shí)際測(cè)量壓力范圍，應(yīng)該在量程范圍的15%-80%；

2、產(chǎn)品供電及輸出：
供電范圍的選擇按產(chǎn)品的個(gè)輸出規(guī)格確定：
常規(guī)RS485-RTU輸出，直流12-30VDC供電；
TTL輸出，直流3.3-5.0VDC
低功耗RS485-RTU輸出，直流3.1-6.1VDC；
訂購(gòu)產(chǎn)品時(shí)，請(qǐng)先了解通訊協(xié)議；

3、用戶要了解產(chǎn)品的測(cè)量介質(zhì)特性：
介質(zhì)規(guī)格、介質(zhì)溫度、介質(zhì)純度（是否含有雜質(zhì)或顆粒等）；

4、用戶要了解產(chǎn)品的安裝環(huán)境及安裝方式：
室內(nèi)或室外安裝；
環(huán)境溫度；
要求的密封等級(jí)；
設(shè)備的振動(dòng)范圍；
壓力密封方式：錐度密封、端面密封、弧面密封、球面密封；
安裝空間是否滿足產(chǎn)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;

使用注意事項(xiàng)

產(chǎn)品供電12-24VDC（范圍：9-30VDC）（定制產(chǎn)品注意產(chǎn)品合格證及）；

嚴(yán)禁使用硬物（如：螺絲刀、手指、鐵釘?shù)龋┤ナ沟脡盒倔w受壓力測(cè)量輸出；

產(chǎn)品安裝時(shí)，受力部位為“過程連接六方扳手位”，扳手規(guī)格與六方相對(duì)應(yīng)；

嚴(yán)禁被測(cè)系統(tǒng)的介質(zhì)溫度、壓力量程、激勵(lì)電壓超過變送器的額定使用范圍；

注意保護(hù)變送器天線，發(fā)射/接收信號(hào)較弱時(shí)，建議采集延長(zhǎng)天線連接線；

產(chǎn)品安裝于通風(fēng)、干燥、無(wú)強(qiáng)腐蝕環(huán)境，露天安裝加防護(hù)裝置，避免陽(yáng)光直接照射；

高壓產(chǎn)品密封件使用紫銅材料；高壓壓力產(chǎn)品，調(diào)試使用過程中注意對(duì)產(chǎn)品做好防護(hù)，避免在調(diào)試或使用過程中，壓力泄露傷及周圍人員或損壞設(shè)備；

盡量避免直接接近引起干擾的用戶裝置或電器；

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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