Key points in selecting equipment for troubleshooting abnormal pumping speeds
For abnormal pumping-speed troubleshooting, first compare baseline and loaded pump-down curves. Distinguish pump performance, line resistance and sample outgassing, and retain before-and-after records when servicing the system.
For abnormal pumping, separate pump performance, line resistance and sample outgassing using baseline comparisons.
Equipment decisions
-
Compare empty and loaded pump-down curves to distinguish leaks, sample outgassing and vapour load; one pressure-rise result cannot by itself establish seal failure.
-
Record pressure-hold behaviour at the same temperature and isolation conditions, then inspect door seals, valves, joints, gauge lines and the pump.
-
Repeat baseline and loaded checks after servicing or seal replacement; retain before-and-after curves to confirm recovery of the drying endpoint and atmosphere stability.
Trial and acceptance
Record the initial sample condition, loading layout, recipe version and raw measurements. Agree the acceptance endpoint before the trial; repeat at challenging load positions and compare the finished material result.
Catalogue comparison
Candidate models in the current catalogue: ESC-VO1000-T6, ESC-VO125-T6, ESC-VO216-T6, ESC-VO27-T6. These are comparison candidates, subject to the process checks above.
The following specifications apply only to the models listed:
- ESC-VO1000-T6: Internal Chamber Dimensions: 1000*1000*1000 mm
- ESC-VO1000-T6: Operating Temperature Range: A:Room temperature+25~200℃;B:Room temperature+35~300℃;C:Room temperature+45~400℃;D:Room temperature+50~500℃;E:Room temperature+60~600℃
- ESC-VO1000-T6: Heating System: Stainless steel high-speed heater
- ESC-VO1000-T6: Control System: Touchscreen programmable control
- ESC-VO125-T6: Internal Chamber Dimensions: 500*500*500 mm
- ESC-VO125-T6: Operating Temperature Range: A:Room temperature+25~200℃;B:Room temperature+35~300℃;C:Room temperature+45~400℃;D:Room temperature+50~500℃;E:Room temperature+60~600℃
- ESC-VO125-T6: Heating System: Stainless steel high-speed heater
- ESC-VO125-T6: Control System: Touchscreen programmable control
- ESC-VO216-T6: Internal Chamber Dimensions: 600*600*600 mm
- ESC-VO216-T6: Operating Temperature Range: A:Room temperature+25~200℃;B:Room temperature+35~300℃;C:Room temperature+45~400℃;D:Room temperature+50~500℃;E:Room temperature+60~600℃
- ESC-VO216-T6: Heating System: Stainless steel high-speed heater
- ESC-VO216-T6: Control System: Touchscreen programmable control
- ESC-VO27-T6: Internal Chamber Dimensions: 300*300*300 mm
- ESC-VO27-T6: Operating Temperature Range: A:Room temperature+25~200℃;B:Room temperature+35~300℃;C:Room temperature+45~400℃;D:Room temperature+50~500℃;E:Room temperature+60~600℃
- ESC-VO27-T6: Heating System: Stainless steel high-speed heater
- ESC-VO27-T6: Control System: Touchscreen programmable control
