E8AD1模塊是一種8通道的模數(shù)轉(zhuǎn)換器, 它內(nèi)嵌了一個(gè)微處理器以實(shí)現(xiàn)高精度轉(zhuǎn)換并且提供了電壓輸入及電流測(cè)量輸入功能。
型號(hào)/規(guī)格 | E8AD1 |
通道數(shù) | 8 (差動(dòng)輸入) |
輸入范圍 | 0~20mA, 4~20mA, -20~20mA (輸入阻抗250Ω) |
分辨率 | 12 位 |
精度 | ± 0.2% FSR (滿(mǎn)刻度量程) |
零點(diǎn)漂移 | ± 0.06 μV/℃ |
溫度漂移 | ± 30 PPM/℃ |
轉(zhuǎn)換速率 | 450 ms/8 通道 |
通道隔離 | 無(wú)隔離 (共地) |
電源損耗 | 400mA |
范圍選擇 | DIP開(kāi)關(guān) |
工作溫度 | 0 ~ 55℃ |
存儲(chǔ)溫度 | -25 ~ 70℃ |
相對(duì)濕度 | 5 ~ 95 % RH(無(wú)結(jié)露) |
空氣環(huán)境 | 無(wú)腐蝕性氣體 |
尺寸(W×H×D) | 84mm×111mm×82mm |
SW1 | SW2 | SW3 | SW4 | E8AD1 工作范圍 |
ON ON | OFF OFF | OFF OFF | OFF ON | 0~20mA (無(wú)符號(hào)數(shù)據(jù)) 0~20mA (有符號(hào)數(shù)據(jù)) |
ON ON | ON ON | OFF OFF | OFF ON | 4~20mA (無(wú)符號(hào)數(shù)據(jù)) 4~20mA (有符號(hào)數(shù)據(jù)) |
ON ON | OFF OFF | ON ON | OFF ON | +/-20mA(無(wú)符號(hào)數(shù)據(jù)) +/-20mA (有符號(hào)數(shù)據(jù)) |
范圍 數(shù)據(jù) | E8AD1 | ||
0-20mA | 4~20mA | +/-20mA | |
0(0000H) | 0mA | 4mA | -20mA |
16383(3FFFH) | 5mA | 8mA | -10mA |
32767(7FFFH) | 10mA | 12mA | 0mA |
49151(BFFFH) | 15mA | 16mA | +10mA |
65535(FFFFH) | 20mA | 20mA | +20mA |
范圍 數(shù)據(jù) | E8AD1 | ||
0-20mA | 4~20mA | +/-20mA | |
32768 (8000H) | -20mA | ||
49152(C000H) | -10mA | ||
65535 (FFFFH) | 0mA | ||
0(0000H) | 0mA | 4mA | 0mA |
8191(1FFFH) | 5mA | 8mA | 5mA |
16383(3FFFH) | 10mA | 12mA | 10mA |
24575(5FFFH) | 15mA | 16mA | 15mA |
32767(7FFFH) | 20mA | 20mA | 20mA |