MULTISKAN RC and MS SERVICE MANUAL
GENERAL
Switch Multiskan RC ON. Wait until the
Testing and Adjusting
instrument is ready to receive commands.
Enter commands R and ADJ.
Open the instrument cover and turn all DIL
switches to
OFF.
ADJ Commands
OPERATING INSTRUCTIONS
1.
CHOPPER SPEED
A)
Turn DIL switch 1 ON.
B)
Adjust trimmer R3 on pcb CHOPT-01 until the LED
in
the pcb MUSCU-RC is green.
C)
Turn DIL switch 1 OFF.
Limits: Red 4200 rpm or s1500 rpm
Orange
1200..1429 rprn or 1481..1500 rpm
Green
1430..1480 rpm (chopper
time
5.24307
ms)
2.
CHOPPER TIMING
A)
Turn DIL switch 2 ON.
B)
Loosen pcb CHOPT-01 screws so that you can move the pcb.
C)
Move the pcb upldown direction until the LED in the pcb MUSCU-RC is green.
D) Tighten the screws.
E)
Turn DIL switch 2 OFF.
Limits: The timing is right when the middle place of the chopper hole is
in
the center of light
way after time 0.634 x T (chopper time) from the chopper sensor dropping margin.
Red Variation >lo8 ps
Orange Variation 55.. 108 ps
Green Variation <55 ps
3.
AID
OFFSET
A)
Open the green box below which the
A/D
converter locates.
B)
Work
in
the dark place or open the cover only so much you can adjust potentiometer R12.
C)
Turn DIL switch 3 ON.
D)
Adjust potentiometer R12 until the LED in the pcb MUSCU-RC is green.
E)
Switch the instrument off. Return all DIL switches to their original positions and close
covers.
Limits: Red Offset <0.80
%
or >1.20
%
from
A/D
converters total value.
Orange Offset 0.80..0.95
%
or 1.05.1.20
%
from
A/D
converters total value.
Green
Offset 0.96..1.04
%
from
A/D
converters total value.
Limits are corresponding to voltages 80 mV, 95 mV, 105 mV and 120 mV.
Document
3511352-100-X
Release
1
.o
*-a
Labsystems
Section
8
Page
8
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