NHR-5600系列流量積算控制儀
概述
NHR5600系列流量積算控制儀針對現場溫度、壓力、流量等各種信号進行采集、顯示、控制、遠傳、通訊、打印等處理,構成數字采集系統及控制系統,适用于液體(tǐ)、一(yī)般氣體(tǐ)、過熱蒸汽、飽和蒸汽等的流量積算測量控制。
雙屏LED數碼顯示,具有極寬的顯示測量範圍,可顯示整五位的瞬時流量測量值、溫度/壓力補償測量值、流量(差壓、頻(pín)率)測量值等,及整十一(yī)位的流量累積測量值,0.2%級測量精度。
具備36種信号輸入功能,可配接各種差壓信号(孔闆裝置)、線性信号(電磁流量計)及脈沖信号(渦街流量計),可自由選擇多種補償方式(溫度補償、壓力補償、溫壓補償等)。
采用查表法進行密度補償,可全自動對過熱蒸汽、飽和蒸汽進行精度極高的積算控制,内置多種流量積算公式,适應各測量場合,帶流量系數K自動演算功能。
簡單的容錯功能:溫度、壓力補償測量信号異常時,用對應的手動設定值進行補償運算。
特殊設計的WDT電路、上電複位電路和斷電數據保護電路确保儀表通電運行正常,斷電數據不丢失,斷電數據保護不用後備電池,保護時間5年
可對測量介質進行定量/批量控制(帶啓動停止清零功能)。
可帶兩路模拟量變送輸出。
支持RS485、RS232串行接口,采用标準MODBUS RTU通訊協議。
儀表可帶RS232C打印功能,具有手動、定時、報警打印功能。
帶DC24V饋電輸出,爲現場變送器配電。
輸入、輸出、電源、通訊相互之間采用光電隔離(lí)技術。
參數設定密碼鎖定,參數設置斷電永久保存,具備參數恢複出廠設定功能。
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