型號：PT500-707
精密穩(wěn)定壓力芯體；
冷媒介質(zhì)（空調(diào)、冷庫等）過程連接結(jié)構(gòu)設(shè)計；
不銹鋼過程連接,7/16-20NUF標(biāo)準(zhǔn)螺紋；
抗疲勞、耐沖擊、良好的重復(fù)性能；
可替代同類型國外產(chǎn)品；
常用關(guān)鍵字：
冷媒壓力變送器 冷媒壓力傳感器
空調(diào)壓力變送器 空調(diào)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(jìn)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(bǔ)、線性補(bǔ)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(diào)理算法；
多點性線溫度校準(zhǔn)；
電壓電流過載保護(hù)；
標(biāo)準(zhǔn)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(jìn)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(zhǔn)、清零、反清零、恢復(fù)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(shè)，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(shè)置，默認(rèn) 50Hz
CANopen輸出內(nèi)置 完整的 CANopen 協(xié)議棧，符合 DS301、DS404 規(guī)范，支持 LSS 服務(wù)，支持 BootLoader 在線 升級；
支持波特率(kbps)20/50/100/125/250(默認(rèn))/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(jìn)行定制；
J1939輸出內(nèi)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(rèn))/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(jìn)行定制；
結(jié) 構(gòu)：
深度氬弧焊接，連接彈性材料與過程接頭，強(qiáng)度高，抗沖擊，耐疲勞；
冷媒介質(zhì)（空調(diào)、冷庫等）過程連接結(jié)構(gòu)設(shè)計；
不銹鋼過程連接,7/16-20NUF標(biāo)準(zhǔn)螺紋；
抗疲勞、耐沖擊、良好的重復(fù)性能；
過程連接材料：304或316；
應(yīng) 用：
空調(diào)、冷庫等冷媒介質(zhì)的壓力測量與控制；
樓宇/工業(yè)/電力/石油/自動化等領(lǐng)域的設(shè)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;
