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B&R 5AP1120.101E-000显示控制系统
频道选择一旦选择了卡，就可以选择特定的频道使用工程卡上的（）和（）按钮。这个选定的频道号将显示在信息显示屏上。
3.5取消选择
3.5.1卡片取消选择
要取消选择所选通道卡，短按其前面板RESET/选择按钮。
通道卡将被取消选择，任何用户操作都将进行中尚未确认的将被取消。应该指出的是除非再次瞬时按下复位/选择按钮，否则通道卡不会复位。
3.5.2带通道显示锁定的卡取消选择
如果控制卡已配置为顺序通道显示模式下，可以通过以下方式将显示器锁定到特定频道使用按钮取消选择卡。
要将显示器锁定到特定频道，请执行以下操作：
（1） 选择第3.4.2节所示的所需通道。
（2） 短按按钮，选择图标将清除。
频道显示将保持锁定至所需频道，直到下一次重置或选择卡。
4.1概述
工程卡按钮功能仅在通道卡被选中。见第3.3节。
如果工程卡上没有安装工程钥匙，以下内容工程卡按钮不可用：阻止零跨度
第一个跨度如果按下这些按钮中的任何一个，将显示一个锁定符号简要显示在所选频道卡信息显示屏上。
条形图显示在未安装工程钥匙的情况下操作工程卡时，所选通道的条形图显示将继续指示可用工程运行期间的实际气体读数卡片功能。
4.4催化传感器
电桥电流与BEAD mA按钮相关的操作仅适用于催化通道卡。使用其他类型的所选通道卡无效，警告消息（XXXX）显示一小段时间。
要进入催化传感器电桥电流操作，请执行以下操作：
（1） 按住所需的通道卡RESET/选择按钮约1.5秒直到频道显示屏上出现所选图标。
（2） 使用工程卡按钮选择所需的频道。
（3） 按下BEAD mA按钮，选择通道卡显示将指示配置的网桥现在的例如，200mA与所选通道交替数字
（4） 按下拒绝按钮或等待30秒退出Bead mA模式。
4.5查看报警级别设置报警按钮的操作允许查看每个报警集的报警阈值和报警类型（上升或下降）点A1、A2和A3。
Channel Select
Once a card has been selected, a particular channel can then be selected by using the ( ) and ( ) push-buttons on the Engineering Card. The selected channel number will be shown on the message display. 3.5 Deselect 3.5.1 Card Deselect To deselect a selected channel card, briefly push its front panel RESET/ SELECT push-button. The channel card will be deselected and any user operations in progress which have not been confirmed will be cancelled. It should be noted that the channel card will not be reset unless the RESET/SELECT pushbutton is again momentarily pushed. 3.5.2 Card Deselect with Channel Display Lock If the control card has been configured for a sequential channel display mode, it is possible to lock the display to a particular channel by deselecting the card using the push-button. To lock the display to a particular channel: (1) Select the required channel as indicated in Section 3.4.2. (2) Briefly press the push-button and the select icon will clear. The channel display will remain locked to the desired channel until the card is next reset or selected. 4. ENGINEERING CARD 4.1 General The Engineering Card push-button functions will only operate if a channel card is selected. See Section 3.3. Without the Engineering Key fitted to the Engineering Card, the following Engineering Card push-buttons will not be available: Inhibit Zero Span 1st Span If any of these push-buttons are pushed, a locked symbol ( ) will be briefly displayed on the selected channel card message display.
Bargraph Display
When operating the Engineering Card without an Engineering Key fitted, the selected channel's bargraph display will continue to indicate the actual gas reading during the operation of the available Engineering Card functions. 4.4 Catalytic Sensor Bridge Current The operation associated with the BEAD mA push-button only applies to catalytic channel cards. Operating this push-button with other types of channel cards selected has no effect and the warning message (XXXX) is displayed for a short time. To enter the catalytic sensor bridge current operation, proceed as follows: (1) Push and hold the required channel card RESET/ SELECT push-button for approximately 1.5 seconds until the selected icon appears on the channel display. (2) Use the Engineering Card ( ) and ( ) push-buttons to select the required channel. (3) Push the BEAD mA push-button and the selected channel card display will indicate the configured bridge current. eg. 200mA alternating with the selected channel number. (4) Push the reject ( ) push-button or wait 30 seconds to exit the Bead mA mode. 4.5 View Alarm Level Settings The operation of the ALARMS push-button allows the viewing of the alarm threshold point and alarm type (rising or falling) for each alarm set point A1, A2 and A3.
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