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B&R 5AP923.1906-F01终端显示屏
校准按照中的规定，让连接的传感器稳定一段时间传感器手册。按中所述调整催化传感器的传感器头电流第7章第7节至传感器所示的要求值操作说明。
使用针对所用传感器类型指定的程序，遵循第7章第8节中的零量程和第一量程操作指南和10，并校准每个通道。维护为确保系统正常运行，维护应根据现场规定定期进行所用传感器类型的说明。对于安装在应遵循欧盟标准EN 50073。”
系统应保持清洁并保持畅通灰尘和油脂。
应每年进行以下检查，或根据当地法规或程序的要求更频繁地：
（1） 检查并在必要时拧紧直流输入端的所有终端卡、四中继接口卡和（如果安装到扩展）中继卡。
（2） 检查工程卡通电（）绿色LED是否为点亮，所有其他LED熄灭。
（3） 检查正在使用的每个通道、每个控制卡的显示，表示正常读数，没有错误消息。
（4） 依次选择每个控制卡的每个通道，并检查通道传感器信号读取，如果催化传感器连接时，传感器电桥电流。
（5） 将工程钥匙安装在工程卡上，选择每个每个控制卡的通道依次进入报警测试功能。
（6） 检查警报级别、警报LED操作、警报继电器操作以及每个通道的显示操作。
（7） 检查所有故障和抑制继电器的工作情况。
（8） 检查传感器处于无气体环境中时，显示屏表示零。如果合适，使用ZERO功能。
注：对于氧气应用，只能操作零点功能在无氧环境中。
正常大气条件下显示器应指示21%±0.5%v/v的条件，这可以是使用SPAN功能进行调整。
系统57控制卡和工程卡持续执行硬件、软件和传感器完整性的自检活动出现问题时，取决于问题，控制卡将在LCD显示屏或将操作故障LED和继电器输出。LCD信息显示系统内的操作错误显示为错误代码。使用的错误代码及其含义如下在以下各节中列出。这些部分还包含适当的与错误消息的可能原因有关的信息并指示错误如何影响通道卡。
MAINTENANCE
To ensure that the system functions correctly, maintenance should be carried out on a regular basis as dictated by the site regulations and instructions for the type of sensor being used. For installations in the EU, EN 50073 should be followed.” The system should be maintained in a clean condition and kept free from dust and grease. The following checks should be made annually, or more frequently if required by local regulations or procedures: (1) Check and if necessary tighten all terminations to the DC Input Card, Quad Relay Interface Cards and if fitted to the Expansion Relay Card. (2) Check that the Engineering Card power on ( ) green LED is illuminated and all other LEDs are extinguished. (3) Check the display of each channel in use, of every control card, indicates a normal reading with no error messages. (4) Select each channel of every control card, in turn, and check that channels sensor signal reading and, if a catalytic sensor is connected, the sensor bridge current. (5) With the Engineering Key fitted to the Engineering Card, select each channel of every control card in turn and enter the alarms test function. (6) Check the alarm levels, alarm LED operation alarm relay operation and display operation for each channel. (7) Check the operation of all fault and inhibit relays. (8) Check that, with the sensor in a gas free atmosphere, the display indicates zero. If appropriate adjust the zero reading using the ZERO function. Note: For oxygen applications the zero function should only be operated in an oxygen free atmosphere. Under normal atmosphere conditions the display should indicate 21% ± 0.5% v/v, this can be adjusted by using the SPAN function. The System 57 control cards and engineering cards carry out continual self checking of the integrity of the hardware, software and sensor operation. In the event of a problem, and depending on the type of problem, the control card will indicate either an error message on the LCD display or will operate the fault LED and relay output.
CALIBRATION
Leave the connected sensors to stabilise for a period as specified in the sensor manual. Adjust the sensor head current of catalytic sensors as described in Chapter 7 Section 7 to the required value as indicated in the sensor operating instructions. Using the procedures specified for the type of sensors being used, follow the zero and 1st span operational guide in Chapter 7 Sections 8 and 10, and calibrate each channel.
Operating errors within the system are indicated on the LCD message display as an error code. The error codes used and their meaning are listed in the following sections. These sections also contain appropriate information pertaining to the likely cause of the error message being displayed and an indication on how the error affects the operation of the channel card.
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