訂購注意事項
PT500-801S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(yīng)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(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；
3、用戶要了解產(chǎn)品的測量介質(zhì)特性：
介質(zhì)規(guī)格、介質(zhì)溫度、介質(zhì)純度（是否含有雜質(zhì)或顆粒等）；
4、用戶要了解產(chǎn)品的安裝環(huán)境及安裝方式：
室內(nèi)或室外安裝；
環(huán)境溫度；
要求的密封等級；
設(shè)備的振動范圍；
安裝方式：螺紋、法蘭、特殊結(jié)構(gòu)；
安裝空間是否滿足產(chǎn)品外形尺寸；
Precautions for ordering PT500-801S 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;
