產品詳情內容介紹
B&R 5D5212.06 14520顯示終端
壽命根據差值計算在第一次測量的靈敏度之間跨度和隨后測量的跨度正常SPAN，并且僅在SPAN函數。
這是一個警告，表明傳感器輸出變得不可接受的低，可能到期老化或傳感器“中毒”由于硅酮、硫和鉛化合物。
應更換傳感器。信號低于范圍信息為當傳感器信號讀數為低于預定水平信道配置數據。這預定水平低于正常值工作范圍。
這通常是由于傳感器信號漂移至正常零操作點以下。
這可能取決于傳感器類型，由于氣候的巨大變化狀況、端子連接松動、傳感器中毒或早期指示傳感器故障。
在某些情況下，可能會導致此錯誤傳感器或電纜短路。
應校準通道卡，并其操作已檢查信號超出范圍警告消息為當傳感器信號讀數為超過預定水平通道配置數據。這預定水平高于操作水平范圍這些操作說明是指可用于一般用途的設施無工程密鑰的系統操作和查詢已安裝。可能影響系統運行方式的設施包含在工程師操作說明第7章，涉及設施安裝工程鍵時可用。
2.用戶操作程序
根據操作的鍵盤功能按鈕可以執行以下用戶操作例程：通道重置。
頻道選擇。
查看報警級別。
催化傳感器電流檢查。
傳感器信號監測。
接受更新警報查看時鐘/日歷。
啟動維護記錄打印輸出。
通道復位和選擇由通道卡reset執行/當執行其余功能時，選擇按鈕使用工程卡按鈕控件選擇通道控制卡。
在選擇時，一次只能選擇一個通道卡其微處理器監控工程卡按鈕功能來確定應該采取什么行動。
連續按下RESET/SELECT（重置/選擇）按鈕約五秒鐘將執行擴展卡重置。
在此期間所選圖標將閃爍開和關，當閃爍停止時，重置將完成。
擴展復位執行以下功能：
a、 最大和最小讀數通過工程打印設備已清除。
b、 TWA警報
配置暴露警報時，激活的短期（STEL）或長期（LTEL）暴露警報被清除，暴露定時器復位。
注：只有具有活動警報的通道才會受到擴展重置。
可以重置其他通道上的曝光計算使用第3.3節中概述的程序。
Error Code Meaning
The lifetime is calculated on the difference between the sensitivity measured during 1st SPAN and that measured during subsequent normal SPANs, and is only updated during the SPAN function. This is a warning that the sensor output is becoming unacceptably low and may be due to age or due to the sensor being 'poisoned' by the presence of silicones, sulphur and lead compounds. The sensor should be replaced.
The signal under range message is displayed when the sensor signal reading is less than a predetermined level held within the channel configuration data. This predetermined level is below the normal operating range. This is typically due to the sensor signal drifting below the normal zero operating point. This could, depending on the sensor type, be due to large changes in climatic conditions, loose terminal connections, the sensor being poisoned or an early indication of the failure of the sensor. In some instances this error can be caused by short circuits in the sensor or cabling. The channel card should be calibrated and its operation checked The signal over range warning message is displayed when the sensor signal reading is more than a predetermined level held within the channel configuration data.This predetermined level is above the operating range.
OPERATING INSTRUCTIONS
These operating instructions refer to the facilities available for general operation and interrogation of the system without the Engineering Key fitted. Facilities that may effect the way the system operates are covered in the Engineer's Operating Instructions Chapter 7 which refers to facilities available when the Engineering Key is fitted. 2. USER OPERATING ROUTINES Depending upon which keypad function push-buttons are operated, the following user operating routines may be performed: Channel reset. Channel select. View alarm levels. Catalytic sensor current check. Sensor signal monitoring. Accept an update alarm View clock/calendar. Initiate a maintenance record printout. Channel reset and select are performed by the channel card RESET/ SELECT push-button while the remaining functions are performed, when a channel control card is selected using the Engineering Card pushbutton controls. Only one channel card can be selected at any one time and while selected its microprocessor monitors the Engineering Card push-button functions to determine what action should take place.Pressing the RESET/SELECT push-button continuously for approximately five seconds will perform an extended card reset. During this period the selected icon will flash on and off, and when the flashing stops the reset will be complete. The extended reset performs the following functions: a. Maximum and Minimum Readings The maximum and minimum gas readings available via the engineering printout facility are cleared. b. TWA Alarms When exposure alarms are configured, the active short term (STEL) or long term (LTEL) exposure alarms are cleared and the exposure timer is reset. Note: Only channels with active alarms are affected by the extended reset. The exposure calculations on other channels may be reset using the procedure outlined in Section 3.3.
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