小量氣壓傳感器 小量程氣壓變送器

Small range air pressure transducer

芯       片：
進(jìn)口型微壓壓力芯片，最少壓差100Pa；
3-5倍耐壓，適用于干燥性氣體壓差測(cè)量；
零點(diǎn)、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(hào)處理及輸出：
24位ADC采樣處理芯片；
DSP數(shù)字信號(hào)調(diào)理算法；
多點(diǎn)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(hào)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(hào)輸出：RS485-RTU、超低功耗RS485-RTU
采用的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(yàn)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(diǎn)型、整型、百分比、格式化輸出
采集間隔0~43200秒(12小時(shí))可設(shè)，既可連續(xù)采集，滿足高速采集的場(chǎng)合，也可單次觸發(fā)采集，限度降低功耗

數(shù)字通訊信號(hào)輸出：Can2.0B
測(cè)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(jí)；
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(jí)；
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)：
鋁合金氧化外殼；8mm+M10快速插頭過程連接；
結(jié)構(gòu)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(yīng)      用：
負(fù)壓、無塵車間、科室等壓力測(cè)量與監(jiān)控；
樓宇、通風(fēng)等壓力測(cè)量與監(jiān)控；
吸塵管道，廢氣處理等壓力測(cè)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: , 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;