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芯片：
進口陶瓷壓阻芯體；
選進的貼片工藝，具有零點、滿量程補償、溫度補償；

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
傳輸協議采用通用的MODBUS-RTU協議
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 協議?？梢愿鶕脩舻囊筮M行定制；

J1939輸出內置 J1939 協議棧，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 協議?？梢愿鶕脩舻囊筮M行定制；

結構：
外殼材料采用耐腐蝕進口聚四氟乙烯(鐵氟龍)材料；
IP68密封防水電氣出線；
專用鐵氟龍防腐蝕電纜

應用：
PH值3-11的液位測量與監(jiān)控；
化工、氯氣等腐蝕性液體的液位測量與監(jiān)控；

Chip:
Imported ceramic piezoresistive core body;
The selected mounting process has zero point, full range compensation and temperature compensation;

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:
The shell material is made of corrosion-resistant imported polytetrafluoroethylene (Teflon);
IP68 sealed waterproof electrical outlet;
Special anti-corrosion Teflon cable

Application:
Liquid level measurement and monitoring of pH value 3-11;
Liquid level measurement and monitoring of chemical, chlorine and other corrosive liquids;

應用領域：

消防系統
天然氣管道
送風系統
供氣系統
供氣管道
液壓設備

產品家族：

一、技術參數
測量介質：有腐蝕性的液體、氣體
壓力形式：表壓(靜壓式)
量程：0-50KPa～5MPa；最小量程為50KPa，最大量程為5MPa；
綜合精度：±0.25%FS；±0.5%FS；±1%FS
非線性：≤0.25%FS
重復性：≤0.15%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 協議）
供電電壓：
24VDC(9～30VDC)通用型
3.1～6.1VDC（低功耗RS485-RTU）
5VDC（0.5～4.5VDC輸出型）
絕緣阻抗：≥1000 MΩ/100VDC
負載阻抗：電流輸出: ≤800Ω；電壓輸出：≥50KΩ
數字輸出地址：1～128
RS485波特率：9600(出廠默認) 1200～115200(bps)
Can2.0B 內置CANopen 協議?；騼戎肑1939 協議棧
Can波特率：20/50/100/125/250(默認)/500/800/1000(kbps)
介質/環(huán)境溫度：-20～80℃
補償溫度：0～70℃
過載壓力：150%FS
穩(wěn) 定性：≤±0.15%FS/年
振動影響：≤±0.15%FS/年（機械振動頻率20Hz～1000Hz）
破壞壓力：3倍量程(量程小于350MPa)；2倍量程(量程大于400MPa)
電氣連接：防水緊線螺母+全封膠結構直接出線
防護等級：IP68
連接電纜：專用鐵氟龍液位電纜
過程連接：M20X1.5,G1/2，M22X1.5，ZG1/2，1/2NPT等
連接材料：進口聚四氟乙烯(鐵氟龍)

二、規(guī)格型號

三、結構尺寸

四、電氣連接

五、安裝方式

Measuring medium: corrosive liquid and gas
Pressure form: gauge pressure (static pressure)
Range: 0-50kpa ~ 5MPa; minimum range: 50kPa, maximum range: 5MPa;
Comprehensive accuracy: ± 0.25% FS; ± 0.5% FS; ± 1% FS
Nonlinearity: ≤ 0.25% FS
Repeatability: ≤ 0.15% 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:
24 VDC (9 ～ 30 VDC) universal type
3.1 ~ 6.1vdc (low power rs485-rtu)
5VDC (0.5 ～ 4.5vdc output type)
Insulation impedance: ≥ 1000 m Ω / 100VDC
Load impedance: current output: ≤ 800 Ω; voltage output: ≥ 50K Ω
Digital output address: 1 ~ 128
RS485 baud rate: 9600 (factory default) 1200 ~ 115200 (BPS)
CAN2.0B has built-in CANopen protocol stack or built-in J1939 protocol stack
Can baud rate: 20 / 50 / 100 / 125 / 250 (default) / 500 / 800 / 1000 (kbps)
Medium / ambient temperature: - 20 ～ 80 ℃
Compensation temperature: 0 ～ 70 ℃
Overload pressure: 150% FS
Stability: ≤± 0.15% FS / year
Vibration effect: ≤± 0.15% FS / year (mechanical vibration frequency 20Hz ~ 1000Hz)
Failure pressure: 3 times of measuring range (less than 350Mpa); 2 times of measuring range (measuring range greater than 400MPa)
Electrical connection: Waterproof tight wire nut + full sealing rubber structure direct outlet
Protection grade: IP68
Connecting cable: special Teflon liquid level cable
Process connection: m20x1.5, G1 / 2, M22x1.5, ZG1 / 2, 1 / 2NPT, etc
Connecting material: imported polytetrafluoroethylene (Teflon)

PT500-704耐腐蝕壓力變送器產品訂購注意事項
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%；

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；
低功耗RS485-RTU輸出，直流3.1-6.1VDC；
RS485-RTU輸出時，請先了解通訊協議；

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；
安裝空間是否滿足產品外形尺寸；

Precautions for ordering PT500-704 pressure transmitter

1. Product range selection:
In order to achieve the best effect of product accuracy, service life, stability and other functions, the range selection of the product
Select the following formula for calculation:
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 rs485-rtu output, DC 3.1-6.1vdc;
When output rs485-rtu, please understand the communication protocol first;

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;
Whether the installation space meets the overall dimension of the product;

PT500-704耐腐蝕壓力變送器產品使用注意事項
產品供電請對照產品合格證及使用說明，不同的輸出方式，供電電壓不同；
嚴禁使用硬物（如：螺絲刀、手指、鐵釘等）去使得壓芯體受壓力測量輸出；
電源和信號線按訂購產品規(guī)格要求，正確接線；
產品安裝及使用時，保護好電纜導氣管，電纜的導氣管嚴禁進水或堵塞；
嚴禁被測系統的介質溫度、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，現場使用跨度過大時，建議使用金屬管保護或架空；
測量水井，地下水、河流、水庫等水位時，注意傳感器的投入位置避開淤泥高度；
大量程水位產品，電纜線長度超過30米時，液位變器不可直接用電纜受拉力；
測量水流較急的水位時，液位變送器隨加限位管進行安裝，保證產品上不浮；
變送器的安裝位置，為了減少信息干擾保證測量精度，盡可能的避開磁場變化大輻射大的設備，如：電機、潛水泵、高壓電纜等；
野外安裝變送器，加入避雷針等防護裝置；

Precautions for PT500-704 pressure transmitter
Please refer to the product certificate and instructions for power supply. Different output modes and different power supply voltages are required;
It is strictly forbidden to use hard objects (such as: screwdrivers, fingers, nails, etc.) to make the pressure measurement output of the pressure core body;
The power supply and signal lines shall be correctly connected according to the product specifications;
When the product is installed and used, protect the cable air duct, which is strictly prohibited from water entering or blocking;
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;
When measuring the water level of wells, groundwater, rivers and reservoirs, pay attention to the input position of sensors to avoid the height of sludge;
For a large range of water level products, when the cable length is more than 30 meters, the liquid level transformer can not be directly pulled by the cable;
When measuring the water level with rapid water flow, the liquid level transmitter is installed along with the limit pipe to ensure that the product does not float;
In order to reduce the information interference and ensure the measurement accuracy, the installation position of the transmitter should avoid the equipment with large magnetic field change and radiation as far as possible, such as motor, submersible pump, high-voltage cable, etc;
Field installation transmitter, add lightning rod and other protective devices;

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