ACQUITY UPLC 动态渗漏测试/静态衰减测试失败 - WKB12345
故障描述
- 保留时间漂移
- 压力波动大
- 基线波动
- 动态渗漏测试失败(DLT)
- 重现性差
- 重复进样的体积稳定增加
- 静态渗漏测试失败,出现各种信息
- 渗漏量过多
- 无法压缩或保持压力
- 渗漏率高于可接受限值
- 单向阀正常工作,但渗漏量过多
环境
- ACQUITY UPLC BSM
- ACQUITY UPLC I-Class BSM
- ACQUITY UPLC H-Class QSM
- ACQUITY UPLC H-Class BSM
- ACQUITY UPLC H-Class Bio BSM
- ACQUITY UPLC H-Class Bio QSM
- ACQUITY UPLC M-Class BSM
- nanoACQUITY UPLC BSM
- ACQUITY Premier BSM
- ACQUITY Premier QSM
原因
泵头密封失败
解决方法
更换柱塞杆和高压密封:
700009838 - M-class
高压密封件:
另请考虑更换泵头(H-Class 为 700002595,I-Class 为 700009190)和密封清洗外壳(H-Class 为 700002597,I-Class 为 700009194)
注:如果密封清洗外壳显示“十字”或有颜色,则应将其更换
- 重新运行 DLT 并验证它现在是否通过
- 设置流速并确保压力和波动稳定且在可接受的范围内
附加信息
或者,也可以使用泵头替换组件,其中包括柱塞杆、高压密封和单向阀。
对于 ACQUITY UPLC 和 ACQUITY UPLC H-Class:
- ACQUITY UPLC 蓄积泵泵头替换组件:700004746
i2V 阀替换组件:700004747(对于序列号早于 F07UPB593M 的 BSM,请使用被动单向阀替换组件 700004748)
- 如果更换密封件、柱塞、密封件、单向阀、泵头和密封清洗外壳后仍然失败,请更换泵头至传感器的不锈钢管路 (430001120)
对于 ACQUITY UPLC I-Class:
- ACQUITY UPLC I-Class 蓄积泵泵头替换组件:700010584
- ACQUITY UPLC I-Class i2V 初级泵泵头替换组件:700010583
- ACQUITY UPLC I-Class BSM 泵头:700009190
- ACQUITY UPLC I-Class BSM 密封清洗外壳:700009194
特定用于 ACQUITY UPLC H-Class Bio/ACQUITY Premier:
- ACQUITY UPLC 钛/H-Class Bio 密封清洗外壳:700005410
- ACQUITY UPLC I-Class 蓄积泵泵头替换组件:700010582
- ACQUITY UPLC I-Class i2V 初级泵泵头替换组件:700010581
蚀刻密封外壳示例
id12345, A-30SDM, accumulator, check valve, retention time, seal wash, static decay test, UPAQSM, UPBINARY, UPBINARY, UPBSM+, UPIBSM, UPIBSM, UPIBSM+, UPIBSM+, UPISMFL, UPISMFL+, UPISMFTIVD, UPISMFTN, UPISMFTN+, UPMASM, UPMBSM, UPMSMFL, UPNAYXPMP, UPNSAMMGR, UPNSOLMGR, UPPBSM, UPPQSM, UPQSM, UPQSM, UPQSM+, UPQSM+, UPQSMBIO, UPQSMBIO, UPQSMBIO+, UPSMFTN, UPSMFTN+, UPSMFTNB+, UPSMFTNBIO, 密封清洗液, 止回阀