Re: [AMMRL] MeOD lock issues on Avance III TS3.6.5 #Bruker

From: Rentsch, Daniel <Daniel.Rentsch_at_empa.ch>
Date: Fri, 23 Jun 2023 05:42:39 +0000

I have two propositions for you, the 1st one was performed after contact to
the Bruker helpdesk…..the 2nd one is a workaround proposed by a
colleague of mine:

Error message under automation - " Lock not found; Lock OFF"

I)

Helpdesk Bruker: insert sucrose sample, Lock und Shim, then:
ha / BSMS-Tool / calibration / auto lock phase calibration / click on
"start H0 calibration" (4 Min.) then "Auto Phase Calibration"
Tests with MeOD samples under Automation - ok!

II)

Lock parameters of MeOD changed (old/ new): Power -25 / -40; loop gain -3 / 0.3
loop time 0.2 /0.22; loop filter 100 /160; lock phase -1 / -1; lock power
instep 10 / 10

Configuration IconNMR "Associated Lock Routine" "XAU lockmeod"
AU Programm "lockmeod" (increased waiting time of 30s after ev. Lock trials
without success):

GETCURDATA
CPR_exec("lock meod", WAIT_TERM);
i1=ssleep(30);
QUIT

Good luck

Dani


Von: main_at_ammrl.groups.io <main_at_ammrl.groups.io> Im Auftrag von Kenneth Sharp-Knott
Gesendet: Donnerstag, 22. Juni 2023 17:33
An: main_at_ammrl.groups.io
Betreff: [AMMRL] MeOD lock issues on Avance III TS3.6.5 #Bruker

Ok, recently all of my MeOD samples are failing to lock on my Prodigy TCI in
an Avance III running TS3.6.5. These samples lock fine on other instruments.

I can manually set the field and it will lock, but as soon as it locks on
another solvent with another sample, it's unable to apparently find the field
automatically with MeOD. As far as I can tell, the lock phase is ok. 2H
tune is spot on.

Any suggestions?


-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#236): https://ammrl.groups.io/g/main/message/236
Mute This Topic: https://groups.io/mt/99700062/7559972
Mute #bruker:https://ammrl.groups.io/g/main/mutehashtag/bruker
Group Owner: main+owner_at_ammrl.groups.io
-=-=-=-=-=-=-=-=-=-=-=-






Received on Fri Jun 23 2023 - 06:20:29 MST