Ralco R 221 ACS DHHS Series, Инструкция по эксплуатации

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MTR 221 ACS - MTR 221 ACS DHHS
MANUALE ISTRUZIONI / INSTRUCTION MANUAL
O
PTIONAL
I
TEMS
138
Model R 221 ACS - R 221 ACS DHHS
MT
R
2
21
ACS
-
MTR
2
21
AC
S DHH
S - Optio
nal Ite
m
s
Additional variable filtration may be added to the
minimum collimator filtration in the form of an
aluminium disk, 1 mm thickness, with automatic
control via the electronic PCB.
The disk features a hole allowing the passage of
X-rays and includes three filters with the following
filtration values:
• 0: no filtration
• 0,1 mm Cu + 1 mm Al. (Al eq. 3.5 mm)
• 0,2 mm Cu + 1 mm Al (Al eq. 6.0 mm)
• 1 mm Al + 1 mm Al support (Al eq. 2.0 mm).
Adjustments
P
HOTOCELL
A
DJUSTMENT
• Remove the front panel - See Chapter- C
OVER
R
EMOVAL
.
• Disconnect the photocell connector from the GC
007 PCB.
• Unscrew the 2 screws C holding the filter system on the front plate, see Fig. 1
• Remove the support together with the filter from the collimator.
• Adjust the photocell by loosening the 2 screws B located on the support, see Fig. 2
• Move the photocell until a return signal of photocell cut-off is received (related LED lights
up on PC board).
• When adjusted is terminated, tighten the B screws, see Fig. 2
• Remount the support and the front plate.
Substitutions
S
UBSTITUTION OF THE
F
ILTER
M
OTOR
• Disconnect supply.
• Remove the front panel, see Chapter
C
OVER
R
EMOVAL
.
• Disconnect the motor connector from the electronic
board .
• Unscrew the 2 screws C holding the filter system on
the front plate, see Fig. 1.
• Take the support together with the filter out from the
collimator.
• Remove the motor from its support by unscrewing
the 2 screws A , see Fig. 2
• Substitute the motor with an identical item.
• Remount the support with the new motor.
• Connect the connector removed previously.
• Remount the front panel.
RO 305 Additional Variable Filtration - Automatic Selection
Fig. 1
Fig. 2