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型號：PT500-802
進口型微壓差壓力芯片，最少壓差100Pa；
3-5倍耐壓，適用于干燥性氣體壓差測量；
高精度、穩(wěn)定、數字標定調節(jié)、放大集成電路；
零點、滿度，溫補、線性補償；
鋁合金氧化外殼；8mm+M10快速插頭過程連接；

常用關鍵字：
微差壓變送器微差壓傳感器
微壓差壓力變送器微壓差壓力傳傳感器

Model: PT500-802
The minimum differential pressure is 100Pa;
3-5 times withstand voltage, suitable for dry gas differential pressure measurement;
High precision, stable, digital calibration adjustment, amplification integrated circuit;
Zero point, fullness, temperature compensation and linear compensation;
Aluminum alloy oxidation shell; 8mm + m10quick plug process connection;

Common keywords:
Micro differential pressure transmitter micro differential pressure sensor
Micro differential pressure transmitter

芯片：
進口型微壓差壓力芯片，最少壓差100Pa；
3-5倍耐壓，適用于干燥性氣體壓差測量；
零點、滿度，溫補、線性補償；
高阻抗、高精度、高穩(wěn)定性；
100萬次使用壽命以上；

信號處理及輸出：
24位ADC采樣處理芯片；
DSP數字信號調理算法；
多點性線溫度校準；
電壓電流過載保護；
標準工業(yè)信號輸出：4-20mA(二線制)，0-20mA(三線制)，0-5VDC，0-10VDC，0.5-4.5VDC(三線制);

數字通訊信號輸出：RS485-RTU、超低功耗RS485-RTU
采用先進的32bit微處理器和24bit ADC
傳輸協(xié)議采用通用的MODBUS-RTU協(xié)議
支持波特率：1200~57600bps，校驗位：NONE、ODD、EVEN
支持用戶二次校準、清零、反清零、恢復出廠等操作
支持11種單位切換，支持浮點型、整型、百分比、格式化輸出
采集間隔0~43200秒(12小時)可設，既可連續(xù)采集，滿足高速采集的場合，也可單次觸發(fā)采集，最大限度降低功耗

數字通訊信號輸出：Can2.0B
測量速率：10...1000Hz 可設置，默認50Hz

CANopen輸出內置完整的 CANopen 協(xié)議棧，符合 DS301、DS404 規(guī)范，支持 LSS 服務，支持 BootLoader 在線升級；
支持波特率(kbps)20/50/100/125/250(默認)/500/800/1000；支持特性 NMT/Heartbeat/SDO/PDO/LSS/Bootloader；CANopen 協(xié)議?？梢愿鶕脩舻囊筮M行定制；

J1939輸出內置 J1939 協(xié)議棧，可以自由配置 PGN、SPN 以及 NAME，支持 BootLoader 在線升級；
支持波特率(kbps)20/50/100/125/250(默認)/500/800/1000
；支持特性PGN、SPN、NAME等自由配置
，J1939 協(xié)議?？梢愿鶕脩舻囊筮M行定制；

結構：
鋁合金氧化外殼；8mm+M10快速插頭過程連接；
結構小，緊線螺母防水出線方式電氣連接；
配套四/五芯屏蔽電纜；

應用：
負壓、無塵車間、科室等壓力測量與監(jiān)控；
樓宇、通風等壓力測量與監(jiān)控；
吸塵管道，廢氣處理等壓力測量與監(jiān)控；

Chip:
The minimum differential pressure is 100Pa;
3-5 times withstand voltage, suitable for dry gas differential pressure measurement;
Zero point, fullness, temperature compensation and linear compensation;
High impedance, high precision and high stability;
More than 1 million times of service life;

Signal processing and output:
24 bit ADC sampling and processing chip;
DSP digital signal conditioning algorithm;
Multipoint linear 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 32 bit microprocessor and 24 bit ADC are adopted
The transmission protocol is MODBUS-RTU
Support baud rate: 1200 ~ 57600bps, check bits: none, odd, even
Support the user's secondary calibration, reset, anti reset, restore factory operations
Support 11 kinds of units switching, support floating point, integer, percentage, formatted output
The acquisition interval of 0 ~ 43200 seconds (12 hours) can be set, which can not only meet the needs of high-speed acquisition, but also trigger acquisition once to

minimize power consumption

Digital communication signal output: CAN2.0B
Measurement rate: 10... 1000Hz can be set, the default is 50 Hz

CANopen output built-in complete CANopen protocol stack, in line with ds301, ds404 specifications, support LSS services, support bootloader online upgrade;
Support baud rate (kbps) 20 / 50 / 100 / 125 / 250 (default) / 500 / 800 / 1000; support features of NMT / heartbeat / SDO / PDO / LSS / bootloader; CANopen protocol

stack can be customized according to user requirements;

J1939 output has built-in J1939 protocol stack. PGN, SPN and name can be configured freely, and bootloader online upgrade is supported;
Support baud rate (kbps) 20 / 50 / 100 / 125 / 250 (default) / 500 / 800 / 1000; support free configuration of features such as PGN, SPN and name
The J1939 protocol stack can be customized according to the user's requirements;

Structure:
Aluminum alloy oxidation shell; 8mm + m10quick plug process connection;
Small structure, tight wire nut waterproof, electrical connection;
Supporting four / five core shielded cable;

Application:
Pressure measurement and monitoring of negative pressure, dust-free workshop, Department, etc;
Pressure measurement and monitoring of buildings, ventilation, etc;
Pressure measurement and monitoring of dust collection pipeline, waste gas treatment, etc;

應用領域：

智慧城市
消防系統(tǒng)
天然氣管道
送風系統(tǒng)
供氣系統(tǒng)
供氣管道

產品家族：

一、技術參數
測量介質：干燥性氣體
壓力形式：差壓
量程：
0～100、200、300、500、1000（Pa）；
0～1、2、3、5、10、20、30、40、50、70、100（KPa）；
-100KPa～-10KPa～0～100（KPa）；
±500Pa～±100KPa；
靜壓（耐壓）：3～5倍量程
綜合精度：±0.25%FS；±0.5%FS；±1%FS
非線性：≤0.5%FS
重復性:≤0.25%FS
輸出信號:
電流型：4～20mA二線制；4～20mA/0-20mA三線制
電壓型：0～5VDC、0～10VDC、0.5～4.5VDC三線制
數字型：RS485-RTU、低功耗RS485-RTU
Can2.0B（支持CANopen、J1939 協(xié)議）
供電電壓:
24VDC(9～30VDC)
5VDC（0.5～4.5VDC輸出型）
3.1～6.1VDC（低功耗RS485-RTU）
壽命：≥100萬次
絕緣阻抗：≥1000 MΩ/100VDC
負載阻抗：電流輸出: ≤800Ω；電壓輸出：≥50KΩ
介質溫度：-20～70℃/
環(huán)境溫度：-20～70℃
補償溫度：0～60℃
響應時間：≤3mS
過載壓力：150%FS
破壞壓力：3倍量程(量程小于40MPa)；2倍量程(量程大于41MPa)
電氣連接：防水緊線螺母直接出線，可配套防爆電氣連接
防護等級：IP65/IP68
連接電纜：緊線螺母，標準長度：3米
連接材料：鋁合金
過程連接：φ8快速插頭+M10螺紋(通用)……可用戶制訂規(guī)格

二、規(guī)格型號

三、結構尺寸

四、輸出信號

Measuring medium: dry gas
Pressure form: differential pressure
Range:
0～100、200、300、500、1000（Pa）；
0～1、2、3、5、10、20、30、40、50、70、100（KPa）；
-100KPa～-10KPa～0～100（KPa）；
±500Pa～±100KPa；

Static pressure (withstand voltage): 3 ~ 5 times of measuring range
Comprehensive accuracy: ± 0.25% FS; ± 0.5% FS; ± 1% FS
Nonlinearity: ≤ 0.5% FS
Repeatability: ≤ 0.25% FS
Output signal:
Current type: 4-20mA two-wire system; 4-20mA / 0-20mA three-wire system
Voltage type: 0 ~ 5VDC, 0 ~ 10VDC, 0.5 ~ 4.5vdc three wire system
Digital type: rs485-rtu, low power rs485-rtu
CAN2.0B (supports CANopen, J1939 Protocol)

Supply voltage:
24VDC(9～30VDC)
5VDC (0.5 ～ 4.5vdc output type)
3.1 ~ 6.1vdc (low power rs485-rtu)

Service life: ≥ 1 million times
Insulation impedance: ≥ 1000 m Ω / 100VDC
Load impedance: current output: ≤ 800 Ω; voltage output: ≥ 50K Ω
Medium temperature: - 20 ～ 70 ℃/
Ambient temperature: - 20 ～ 70 ℃
Compensation temperature: 0 ～ 60 ℃
Response time: ≤ 3MS
Overload pressure: 150% FS
Failure pressure: 3 times of measuring range (less than 40MPa); 2 times of measuring range (measuring range greater than 41mpa)
Electrical connection: Waterproof tight wire nut directly leads out, can be matched with explosion-proof electrical connection
Protection grade: IP65 / IP68
Connecting cable: tightening nut, standard length: 3M
Connection material: aluminum alloy
Process connection: φ 8 quick plug + M10 thread (Universal) Specification can be made by users

PT500-802產品訂購注意事項
1、產品量程選擇：
為了使產品精度、壽命、穩(wěn)定性等功能達到最佳效果，產品的量程選擇參照以下公式計算：
量程 = 系統(tǒng)最大壓力 X （1.2-1.5）倍；
產品的實際測量壓力范圍，應該在量程范圍的15%-80%；
靜壓（耐壓）為量程值的3到5倍，即高壓端最大壓力值；

2、產品供電及輸出：
供電范圍的選擇按產品的個輸出規(guī)格確定：
常規(guī)4-20mA/0-20mA、0-5V/10V輸出，直流12-30VDC供電；
通用RS485-RTU輸出，直流12-30VDC供電；
0.5-4.5VDC輸出，直流5VDC；

3、用戶要了解產品的測量介質特性：
介質規(guī)格、介質溫度、介質純度（是否含有雜質或顆粒等）；

4、用戶要了解產品的安裝環(huán)境及安裝方式：
室內或室外安裝；
環(huán)境溫度；
要求的密封等級；
設備的振動范圍；
安裝方式：螺紋、法蘭、特殊結構；
安裝空間是否滿足產品外形尺寸；

Precautions for ordering PT500-802 products
1. Product range selection:
In order to achieve the best effect of product precision, life, stability and other functions, the range selection of the product is calculated according 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 measuring range;
The static pressure (withstand voltage) is 3 to 5 times of the range value, that is, the maximum pressure value at the high pressure end;

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;

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;

嚴禁產品供電范圍超過產品規(guī)定標準；
產品測量介質為：干燥性氣體，嚴禁用于測量液體、蒸汽或濕度大氣體介質；
嚴禁使用硬物（如：螺絲刀、手指、鐵釘等）去使得壓力膜片受壓力測量輸出；
電源和信號線按訂購產品規(guī)格要求，正確接線；
產品安裝時，引壓管采用8mm硬質氣管，防止氣體壓力使用氣管膨脹；
嚴禁被測系統(tǒng)的介質溫度、壓力量程、激勵電壓超過變送器的額定使用范圍；
注意保護變送器引出電纜，現(xiàn)場使用跨度過大時，建議使用金屬管保護或架空；
壓力變送器屬精密計量儀器，切勿強加沖擊、摔打，以免損壞芯體
產品安裝于通風、干燥、無強腐蝕環(huán)境，露天安裝加防護裝置，避免陽光直接照射；
產品儀表嚴禁進水/漏水/泡水情況，露天安裝加防護裝置，避免陽光直接照射；

It is strictly prohibited that the power supply scope of the product exceeds the specified standard of the product;
The measuring medium of the product is: dry gas. It is forbidden to measure liquid, steam or gas medium with high humidity;
It is forbidden to use hard objects (such as: screwdrivers, fingers, nails, etc.) to make the pressure diaphragm output by pressure measurement;
The power supply and signal line should be connected correctly according to the product specification;
When the product is installed, the pressure pipe is made of 8mm hard gas pipe to prevent the expansion of the gas pipe under gas pressure;
It is strictly prohibited that the medium temperature, pressure range and excitation voltage of the measured system exceed the rated range of the transmitter;
Pay attention to protect the outgoing cable of transmitter. When the span is too large, it is recommended to use metal tube for protection or overhead;
Pressure transmitter is a kind of precision measuring instrument. Do not force impact and fall to avoid damaging the core body
The product is installed in a ventilated, dry and non corrosive environment. It is installed in the open air with protective devices to avoid direct sunlight;
Do not let water / water leak / soak into the instrument. Install protective devices in the open air to avoid direct sunlight;

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