產(chǎn)品優(yōu)勢：
型號：PT500-707
精密穩(wěn)定壓力芯體；
冷媒介質（空調、冷庫等）過程連接結構設計；
不銹鋼過程連接,7/16-20NUF標準螺紋；
抗疲勞、耐沖擊、良好的重復性能；
可替代同類型國外產(chǎn)品；
常用關鍵字：
冷媒壓力變送器 冷媒壓力傳感器
空調壓力變送器 空調壓力傳感器
Model: PT500-707
Precision stable pressure core body;
Process connection structure design of refrigerant medium (air conditioning, cold storage, etc.);
Stainless steel process connection, 7 / 16-20nuf standard thread;
Fatigue resistance, impact resistance and good repeatability;
It can replace the same type of foreign products;
Common keywords:
Refrigerant pressure transmitter refrigerant pressure sensor
Air conditioning pressure transmitter air conditioning pressure sensor
芯 片：
采用精密穩(wěn)定感壓芯片；選進的貼片工藝；
小量程芯片：充油硅芯片；
大量程芯片：壓阻式厚膜芯片；
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(shù)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(shù)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(shù)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?jù)用戶的要求進行定制；
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?jù)用戶的要求進行定制；
結 構：
深度氬弧焊接，連接彈性材料與過程接頭，強度高，抗沖擊，耐疲勞；
冷媒介質（空調、冷庫等）過程連接結構設計；
不銹鋼過程連接,7/16-20NUF標準螺紋；
抗疲勞、耐沖擊、良好的重復性能；
過程連接材料：304或316；
應 用：
空調、冷庫等冷媒介質的壓力測量與控制；
樓宇/工業(yè)/電力/石油/自動化等領域的設備壓力測量；
Chip:
It adopts precision stable pressure sensitive chip and selective placement technology;
Small range chip: oil filled silicon chip;
Large range chip: piezoresistive thick film chip;
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:
Deep argon arc welding, connecting elastic material and process joint, high strength, impact resistance and fatigue resistance;
Process connection structure design of refrigerant medium (air conditioning, cold storage, etc.);
Stainless steel process connection, 7 / 16-20nuf standard thread;
Fatigue resistance, impact resistance and good repeatability;
Process connection material: 304 or 316;
Application:
Pressure measurement and control of air conditioning, cold storage and other refrigerant media;
Pressure measurement of equipment in building / industry / power / Petroleum / automation fields;
應用領域：
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中央空調機組
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空壓機組
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供氣系統(tǒng)
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供氣管道
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給水設備
訂購注意事項
PT500-707產(chǎn)品訂購注意事項
1、產(chǎn)品量程選擇：
為了使產(chǎn)品精度、壽命、穩(wěn)定性等功能達到最佳效果，產(chǎn)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(chǎn)品的實際測量壓力范圍，應該在量程范圍的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；
低功耗輸出供電范圍：3.6VDC（3-5VDC）
3、用戶要了解產(chǎn)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(chǎn)品的安裝環(huán)境及安裝方式：
隔爆防護等級能否滿足現(xiàn)場工況要求；
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(chǎn)品外形尺寸；
Precautions for ordering PT500-707 products
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 output power supply range: 3.6vdc (3-5vdc)
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:
Whether the flameproof protection level can meet the requirements of field conditions;
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;
