7
•
Maintenance and Service
Pumps C, Pumps F ( VC-Pxx, VF-Pxx)
Operating Manual
Page 159
9. Inspect all flow connections on the pump head for indications of
leakage. Tighten leaky connections when the system pressure is
down to zero.
10.
Optional:
Test the system wash system and pump for leakage (see
Testing the Seal Wash System for Leakage (
and
the Pump for Leakage (General Test) (
).
7.6.9
Testing the Piston Seals for Leakage
When
•
Pressure pulsation, shift in retention times and/or poor
reproducibility can indicate possible piston seal leakage.
•
If messages regarding piston seal leakage appear in the
chromatography software, for example,
"The piston seal leakage
has exceeded the recommended limit (code 4121)"
.
Parts and additional items required
•
Backpressure capillary (from Diagnostics tool kit) (optional)
•
Isopropanol
Follow these steps
1. From the Chromeleon software, start a seal wash cycle.
2. When the seal wash cycle is complete, disconnect the tubing from
the seal wash detector (port labeled
in
).
Figure 55: Seal wash detector
No.
Description
1
Seal wash detector
2
Tubing connection port (port labeled
in
)
Содержание thermoscientific Vanquish Pumps C
Страница 4: ...Contacting Us Page 4 Pumps C Pumps F VC Pxx VF Pxx Operating Manual ...
Страница 30: ...2 Safety Page 30 Pumps C Pumps F VC Pxx VF Pxx Operating Manual ...
Страница 40: ...3 Device Overview Page 40 Pumps C Pumps F VC Pxx VF Pxx Operating Manual ...
Страница 196: ...7 Maintenance and Service Page 196 Pumps C Pumps F VC Pxx VF Pxx Operating Manual ...
Страница 214: ...8 Troubleshooting Page 214 Pumps C Pumps F VC Pxx VF Pxx Operating Manual ...
Страница 284: ...12 Accessories Consumables and Replacement Parts Page 284 Pumps C Pumps F VC Pxx VF Pxx Operating Manual ...
Страница 290: ...13 Appendix Page 290 Pumps C Pumps F VC Pxx VF Pxx Operating Manual ...
Страница 296: ...Thermo Fisher Scientific Inc 168 Third Avenue Waltham Massachusetts 02451 USA www thermofisher com ...