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B&R 5D5212.06 14520显示终端
寿命根据差值计算在第一次测量的灵敏度之间跨度和随后测量的跨度正常SPAN，并且仅在SPAN函数。
这是一个警告，表明传感器输出变得不可接受的低，可能到期老化或传感器“中毒”由于硅酮、硫和铅化合物。
应更换传感器。信号低于范围信息为当传感器信号读数为低于预定水平信道配置数据。这预定水平低于正常值工作范围。
这通常是由于传感器信号漂移至正常零操作点以下。
这可能取决于传感器类型，由于气候的巨大变化状况、端子连接松动、传感器中毒或早期指示传感器故障。
在某些情况下，可能会导致此错误传感器或电缆短路。
应校准通道卡，并其操作已检查信号超出范围警告消息为当传感器信号读数为超过预定水平通道配置数据。这预定水平高于操作水平范围这些操作说明是指可用于一般用途的设施无工程密钥的系统操作和查询已安装。可能影响系统运行方式的设施包含在工程师操作说明第7章，涉及设施安装工程键时可用。
2.用户操作程序
根据操作的键盘功能按钮可以执行以下用户操作例程：通道重置。
频道选择。
查看报警级别。
催化传感器电流检查。
传感器信号监测。
接受更新警报查看时钟/日历。
启动维护记录打印输出。
通道复位和选择由通道卡reset执行/当执行其余功能时，选择按钮使用工程卡按钮控件选择通道控制卡。
在选择时，一次只能选择一个通道卡其微处理器监控工程卡按钮功能来确定应该采取什么行动。
连续按下RESET/SELECT（重置/选择）按钮约五秒钟将执行扩展卡重置。
在此期间所选图标将闪烁开和关，当闪烁停止时，重置将完成。
扩展复位执行以下功能：
a、 最大和最小读数通过工程打印设备已清除。
b、 TWA警报
配置暴露警报时，激活的短期（STEL）或长期（LTEL）暴露警报被清除，暴露定时器复位。
注：只有具有活动警报的通道才会受到扩展重置。
可以重置其他通道上的曝光计算使用第3.3节中概述的程序。
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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