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Replaced Outer Cocktail Valve #22

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jirhiker opened this issue Jun 13, 2017 · 0 comments

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jirhiker commented Jun 13, 2017

Starting week of June 6 cocktail blank progessively increased. Matt H. noticed increase when blank was ~18fA.

A high dynamic rise rate in the mass spec was observed when outer cocktail valve (W) was CLOSED lead us to infer a small leak in the valve bellows.

W has replaced 6/12/17 with a new valve.
Minibone backed for 4hours at 175C

Following bake, actuating W still releasing small but significant amount of gas.

Cycling W appears to help clean it up. W cycled 1400 times using a Procedures pyscript (Actuate_w.py on Felix)

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