ELCB
H172203_1_001 65 / 234
3 The interval between two drift compensation iterations is selected here.
4 Lock receiver bandpass filter bandwidth selection.
5 The Lock In Power Step can be modified here - it is normally 10 dB. When locked
in, the Lock Power is reduced by this value.
6 Convention for Locking out - according to this parameter the Lock Regulator
Output (Ctrl-DAC value) is
a) Either reset to zero (results in a overall Field change)b) or transferred to the
H0 DAC (overall Field stays constant)If the parameter is set to keep after Auto
Lock then Convention a) is applied when the Lock was locked in by the simple
Lock on command, and Convention.
b) Is applied when the Lock was locked by the Auto Lock command.
7 Field Correction for compensation of solvent specific effects (defined in the
edlock table).
8 Lock SNR calculation time.
9 Base Frequency for Shift = 0 ppm, related to Proton.
10 If there is a L-19F option installed, then the nucleus for Locking can be selected
by the TopSpin command LOCNUC and the desired nucleus
2
H or
19
F. This
option reflects that selection - switching between the two nuclei simply by setting
this parameter would not work. It is necessary that the TopSpin application
selects also the appropriate preamplifier setup.
11 There are several options for the Lock Display (e. g. Absorption, which is the
standard Lock level, Absorption Low Pass filtered, Dispersion, Regulator
Output, ...). The display mode can be changed e. g. for trouble shooting.
12 Several modes of Ringdown Compensation are available. The Compensated
Pulse modes, can be further tuned by the additional parameter RINGDOWN
COMPENSATION FACTOR. This parameter has no influence on the Pulse Bank
modes.
To Next Page
Loading...