針對管道風(fēng)速測量而設(shè)計,自主研發(fā)的高精度風(fēng)速測量單元,反應(yīng)靈敏,能快速準(zhǔn)確地測量微小風(fēng)速,穩(wěn)定性好、漂移小、精度高。該變送器同時能根據(jù)設(shè)置測量的管道截面積計算實時風(fēng)量值。
【設(shè)備名稱】:管道式風(fēng)速變送器
【功能描述】:針對管道風(fēng)速測量而設(shè)計,自主研發(fā)的高精度風(fēng)速測量單元,反應(yīng)靈敏,能快速準(zhǔn)確地測量微小風(fēng)速,穩(wěn)定性好、漂移小、精度高。該變送器同時能根據(jù)設(shè)置測量的管道截面積計算實時風(fēng)量值。
【檢測原理】:采用熱線式平衡原理測量風(fēng)速。響應(yīng)速度快,啟動風(fēng)速小。
【標(biāo)定方法】:采用公司自主研發(fā)的全量程二次標(biāo)定方法,線性度好,準(zhǔn)確度高;
【接線方式】:接線端子采用軍工彈簧式免螺絲端子,一壓一插即可接線,現(xiàn)場即使沒有螺絲刀也能快速接好線,可適應(yīng)線徑0.3~2.0mm2
【安裝注意事項】:
①、開孔式法蘭盤安裝,采用高品質(zhì)硅膠密封圈,漏風(fēng)小,經(jīng)久耐用;
?、?、注意需要在管道的側(cè)面或者下面安裝,不能采用從上至下安裝方式。
③、先在通風(fēng)管道上打一個直徑20mm的孔,將風(fēng)管插入到孔中,調(diào)整設(shè)備的方向使設(shè)備的箭頭方向與風(fēng)速的方向(風(fēng)來的方向)一致,可以通過調(diào)節(jié)法蘭盤的位置控制設(shè)備的高低。
【測量要素】:①、實時管道風(fēng)速;②、RS485型可選管道內(nèi)風(fēng)量值;
【信號輸出】:RS485、4-20ma、0-5v、0-10v
【參數(shù)修改】:①、可通過485命令改設(shè)備地址和波特率,設(shè)置管道截面積;②、485型可提供專業(yè)配置工具配置設(shè)備參數(shù);③、485型可通過硬件撥碼開關(guān)調(diào)整485從站。
【探頭線長度】:線長默認(rèn)為1m,可長可短,長可做的100m但是需要線體周圍無干擾。
【設(shè)備顯示】:
①、可選配有機(jī)發(fā)光顯示器,可視角度更寬的OLED屏幕,自發(fā)光,功耗低。
②、485型可輪顯當(dāng)前風(fēng)速及相關(guān)風(fēng)量。
?、?、模擬量型可輪顯當(dāng)前量程及當(dāng)前風(fēng)速。
【供電方式】:10-30V DC
【大功耗】:0.5W
【測量介質(zhì)】:空氣、氮氣、油煙廢氣
【精度】:量程0~10m/s的精度為±(0.1+2%FS);量程0~15m/s,0~20m/s,0~30m/s的精度±(0.2+2%FS)m/s;
【電路工作溫度】:-10℃~+50℃
【風(fēng)速顯示分辨率】:0.1m/s
【響應(yīng)時間】:2S
【長期穩(wěn)定性】:≤0.1m/s/year
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