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;