Repaired various issues with the DD2 400, and Mercury 400. Also, had to figure out how to setup Mercury for Q-Tune because it has a protune accessory. Mercury also had a bad High Band transmitter that had several steps from its attenuator bad.
QTuneHB QTuneLB
Water Damage NMR had a failure with the air dryer system that caused water to enter the airlines of system all the way thru the shim coil. Had to replace the following: All system air solenoids Shim Coil Also had to clean the upper barrel for proper spinning. Shim Coil was replaced with an Oxford…
Mercury 400 Alarm Found that the PS204, which is a +12VDC and +5VDC power supply had a capacitor that was bulging. Tested the +12VDC and observed the following: When OK 12.4 VDC 0.1 VAC When Beeping 11.8 VDC 0.8 VAC At Startup 10.5 VDC 1.5V AC Ordered replacement power supply from Mouser Electronics. Part Number: HCC512-A+G…
Filled three NMR magnets using 100L dewer. Magnet Start End Total Oxford 500 28% 100% 72% 95L 45L 50L 8:20 8:40 20 mins Oxford 300 Unknown 100% NA 45L 10L 35L 8:50 9:05 15 mins Bruker 500 81% 91% 10% 10L 0L 10L 9:15 9:20 5 mins
Probe HCN_0775_sem HCN_3512_sem Shims HCN_0775_sem_lk_d20 HCN_3512_sem_lk_d2o h1pw90 7.8us @ 52 7.5us @ 51 lshp_ns 0.74/8.59/10.6 0.60/5.18/8.09 lshp 0.33/2.73/4.92 0.30/1.89/2.09 h1sn 702:1 877:1 f19pw90 9us @ 52 — f19sn 109:1 — c13pwx 14.8us @ 60 24.7us @ 60 c13gamah2 8065 @ 43 8065 @ 48 n15pwx 33us @ 60 — gzprofile 32.8 G/cm 62.8 G/cm gzrecovery…
De-Energize and Pack De-energized and packed system for shipment to Canada. System was de-energized and warmed up and then packed into Oxford shipping crate (including sides). Four pieces were shipped to IET for final crating and packing. Customer arranged for pickup by a freight carrier. Found the following issued during benchmark; Remote Status box inop…
Customer reported no 2H signal during find lock function or gradient shimming. Other issues, AMT had bad fan and the console main switch would not stay on. Replaced fans in AMT Replaced main power switch Tested system RF When testing RF found that output of AMT had good power out for H1 but the RF…