Operation
28
Spectrospin AG
Daedalus Lock Manual
Lock-Hold Operation
3.6
During gradients the Lock nucleus magnetisation is dephased therefore no field reg-
ulation is possible. Due to this situation, the regulator output should be kept con-
stant. In order to achieve that, a pulse can be programmed with the NMR Control
Word. The dedicated NMR Control Word can be found at the rear panel of the As-
pect 3001 (MCI) and it should be connected to the LCB (Lock Control Board) Lock-
Hold input.
Signal: NMR CTRL F2 (3)
Connector: N5 (MCI)
Pin: E
When using Lock Hold in an AMX2 (ECL04) or ARX (ECL09) System, use
NMRCTRLF2(9) ,Connector N3/N as the Lock-Hold .
Program the hold pulse if possible according to the following diagram. It is not rec-
ommended to lock in between the end of the gradient and the start of the acquisi-
tion, even there is enough time.
Caution: There is a short ‘Lock in Spike’ (ca. 100ms) at the Regulator output after
going down of the hold pulse. Be sure that the acquisition starts after or ends before
this spike.
The regulator output can be observed instead of the lock line with the Lock Display
Mode (BSMS Keyboard Menu 2.5 ‘Cont. out’ or ‘Cont. out exp.’)
Make sure that the regulator output is constant before the gradient goes high.
Figure 4: Lock-Hold Pulse Diagram
The ‘Ready LED’ on the LCB is switched off during the Lock-Hold pulse.
Gradient Z
1
Lock Hold
FID
Regulator Output
Lock in Spike
Lock Hold Delay max 2ms
Содержание DAEDALUS
Страница 1: ...BRUKER BRUKER SPECTROSPIN AG SERVICE MANUAL DAEDALUS LOCK Version BSMS 004 ...
Страница 6: ...Contents 6 Spectrospin AG Daedalus Lock Manual ...
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Страница 19: ...Daedalus Lock Catchwords for Bash Daedalus Lock Manual Spectrospin AG 13 Figure 1 Lock Function Diagram ...
Страница 26: ...General Description 20 Spectrospin AG Daedalus Lock Manual ...
Страница 36: ...Operation 30 Spectrospin AG Daedalus Lock Manual ...
Страница 56: ...Lock Transmitter 50 Spectrospin AG Daedalus Lock Manual ...
Страница 64: ...Lock Receiver 58 Spectrospin AG Daedalus Lock Manual ...
Страница 68: ...19F RX Option 62 Spectrospin AG Daedalus Lock Manual ...
Страница 85: ...Installation Daedalus Lock Manual Spectrospin AG 79 Installation 11 2 ...
Страница 86: ...Z0 Compensation Option 80 Spectrospin AG Daedalus Lock Manual ...
Страница 90: ...Technical Data 84 Spectrospin AG Daedalus Lock Manual ...
Страница 92: ...Trouble Shooting 86 Spectrospin AG Daedalus Lock Manual ...
Страница 98: ...BSMS service tool 92 Spectrospin AG Daedalus Lock Manual ...
Страница 107: ...Error Descriptions Daedalus Lock Manual Spectrospin AG 101 ...
Страница 108: ...Lock Error Messages 102 Spectrospin AG Daedalus Lock Manual ...
Страница 114: ...Appendix 108 Spectrospin AG Daedalus Lock Manual ...
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