Siemens SITRANS LR250 Operating Instructions Manual page 8

目录
10.3
常规故障代码................................................................................................................174
10.4
操作故障排除................................................................................................................178
11 技术数据....................................................................................................................................... 181
11.1 电源 ..............................................................................................................................181
11.2 性能 ..............................................................................................................................182
11.3 接口 ..............................................................................................................................183
11.4
机械结构.......................................................................................................................184
11.5 环境 ..............................................................................................................................186
11.6 过程 ..............................................................................................................................186
11.7 认证 ..............................................................................................................................187
11.8 编程器（红外键盘） .....................................................................................................189
12 尺寸图 .......................................................................................................................................... 191
12.1
螺纹喇叭天线................................................................................................................191
12.2
带延长线的螺纹喇叭天线..............................................................................................194
12.3 法兰型喇叭天线 ............................................................................................................196
12.4 带延长线的法兰型喇叭天线 ..........................................................................................198
12.5 法兰密封型天线（仅限 2"/DN50/50A 尺寸） ................................................................200
12.6 法兰密封型天线（3"/DN80/80A 或更大尺寸） .............................................................202
12.7 螺纹 PVDF 天线 ...........................................................................................................204
12.8
螺纹连接标记................................................................................................................205
12.9 符合 EN 1092-1 标准、用于法兰喇叭天线的突面法兰..................................................206
12.10 符合 EN 1092-1 标准、用于法兰密封型天线的突面法兰 ..............................................208
12.11
平面法兰.......................................................................................................................211
12.12 过程连接标签（额定压力版本） ...................................................................................214
A 附录 A：技术参考 ......................................................................................................................... 215
A.1
工作原理.......................................................................................................................215
A.2
回波处理.......................................................................................................................216
A.2.1
过程智能.......................................................................................................................216
A.2.2
回波选择.......................................................................................................................217
A.2.3 CLEF 范围....................................................................................................................220
A.2.4
回波阈值.......................................................................................................................220
A.2.5
回波锁定.......................................................................................................................220
A.2.6
自动虚假回波抑制.........................................................................................................221
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SITRANS LR250 (HART)
操作手册, 2014 年 1 月, A5E32220602_CN