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Maintenance for ISAC-1 BNMR

Date: 
Friday, February 24, 2023
Synopsis: 
All scroll pumps tested to determine base pressure, state of wear.
Equipment/Beam Line: 
Description: 

Scroll pumps in beta-NMR and beta-NQR beamlines and experiments tested to determine base pressure and state of wear.

Striptools record pump Convectron gauges on beta-NQR and NMR lines, experiments. All pump inlet valves closed.

BNQR:BP1, ILE2A1:BP and BNMR:BP5 are all Tri-scroll 300; ILE2A3:BP1 is a single-stage Agilent IDP-15.

Base pressures are somewhat high, especially TS300's, indicative of wear of tip seals.

 

 

Cold start of all bNQR, bNMR scroll pumps and initial pumpdown.
base pressures after severla days running.
Author: 
Gerald Morris