MULTISKAN RC and MS SERVICE MANUAL
4.
SAVING THE FILTERS
Press "PARAM-key. Select 6FILTER WHEELandpress "ENTl2R-key. Whendisplay asks
NR
OF FILTERS 1 input correct number of filters you have in the filterwheel and then the
wavelengths of those filters. Place the filters in raising wavelength order into the filterwheel.
5.
CHECKING THE SYNCHRONIZING
Rotation of the chopwer wheel
Connect an oscilloscope to circuit D29pin
2
onpcb MUSCU2 and measure signal's periodic
time T 5,l
...
5,4
ms. Adjust with trimmer R3 on pcb CHOPT-01 if necessary and lock the
trimmer with locking lacquer.
Checkine the svnchronizirlg
Continuous measurement:
A) Press "CALC MODEv-key. Select
1
ADJUSTMENT and press "ENTER-key. Select
9
CONT.MEAS. and press "ENTER-key twice. Select GAIN 0 and press "ENTER-key.
B)
When measuring the signal of
A/D
converter from pin 14 (circuit D7 on pcb MACU2), the
measuring period has to
be
in the middle of the channel. See Figure 8-4. If the period is not
in the middle of the channel, move pcb CHOPT-01 so that the period
jS
in the middle of
the channel.
Figure 8-4
Measurement point of
the
synchronizing
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