Olympus U-FWT User manual

INSTRUCTIONS
U-FWT/FWR/FWO
TRANSMITTED LIGHT/REFLECTED
LIGHT/OBSERVATION FILTER WHEELS
A X 9 9 5 2
This instruction manual is for the Olympus U-FWT/FWR/FWO Transmitted Light/Reflected Light/
Observation Filter Wheels. To ensure the safety, obtain optimum performance, and to familiarize
yourself fully with the use of this unit, we recommend that you study this manual thoroughly before
operating the unit. Retain this instruction manual in an easily accessible place near the work desk for
future reference.
Optical Microscope Accessory

In accordance with European Directive on Waste Electrical and Electronic Equipment, this
symbol indicates that the product must not be disposed of as unsorted municipal waste, but
should be collected separately.
Refer to your local Olympus distributor in EU for return and/or collection systems available in
your country.
For Korea only
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This product is a part of the system product which complies with the CE marking.
Please refer to the instruction manual of your system product for the safety instructions related to the CE
marking.

1Inserting the Filters in the Filter Wheel
2Mounting the Filter Wheel (U-FWT/FWR/FWO) on the Microscope
U-FWT/FWR/FWO
CONTENTS
If you have not completed filter mounting and its installation on the microscope, refer to Chapter 3, “ASSEMBLY” (pages 4 to 8)
first.
IMPORTANT — Be sure to read this chapter for safe use of the equipment. — 1-2
1 SYSTEM DIAGRAM 3
2 VARIOUS MICROSCOPY PROCEDURES 4
3 ASSEMBLY 4-8

1
IMPORTANT
These filter wheels are designed for use in motorized filter switching operation using the BX-UCB, based on
PC control using the BX2 software for PC or control assignment to the U-HSTR2 hand switch. For the BX-
UCB and U-HSTR2, refer to their respective instruction manuals.
Safety Precautions
1. Be sure to set the main switch of the BX-UCB control box to “ ” (OFF) or unplug its power cord before connecting the
connection cable of the filter wheel to the BX-UCB.
2. Remove the filter wheel from the microscope when replacing filters.
3. When carrying the microscope system, do not hold it by the U-FWT filter wheel. To prevent danger, be sure to hold it by the
base.
4. When using the U-FWR motorized filter wheel for reflected light observation, remove the push ring driver from the position
where it is attached by magnetism in advance to prevent it from dropping.
If the driver drops in a certain place, an electric shock and/or bums may result.
1Getting Ready
1. A filter wheel is a precision instrument. Handle it with care and avoid subjecting it to sudden or severe impact, and
connect cables gently.
2. Do not use the filter wheel where it is subjected to direct sunlight, high temperature and humidity, dust or vibrations.
3. Never attempt to disassemble the filter wheel unit to prevent malfunction.
4. In super-widefield observation (FN 26.5) using a filter wheel, the peripheral area of the field of view may be obscured or cut
off.
5. Due to the space restrictions, the condenser which can be used in combination with the U-FWT transmitted light filter
wheel is only the U-SC3, U-AAC or U-UCD8A.
6. When a 32 mm filter is used with the U-FWT or the U-FWO, ghost and flare may become conspicuous if the specimen
has high contrast and the filter has high reflectance.

U-FWT/FWR/FWO
2
2Caution
If this unit is used in a manner not specified by this manual, the safety of the user may be imperiled. In addition, the
equipment may also be damaged. Always use the equipment as outlined in this instruction manual.
The following symbols are used to set off text in this instruction manual.
: Indicates that failure to follow the instructions in the warning could result in bodily harm to the
user and/or damage to equipment (including objects in the vicinity of the equipment).
# : Indicates that failure to follow the instructions could result in damage to equipment.
} : Indicates commentary (for ease of operation and maintenance).

3
SYSTEM DIAGRAM
* The U-ULH (mercury/xenon) system cannot be combined with the U-FWR due to collector lens interference.
Observation Filter Wheel
U-FWO
** Applicable Combinations of Microscope and Filter Wheel
U-FWT U-FWR U-FWR (x 2 stages) U-FWO
BX2 series OK OK OK OK
BX series No OK OK OK
AX series No OK No OK (Note)
IX/IX2 series No OK OK OK
Connect to one of
FW1, 2 and 3 of the
BX-UCB.
Transmitted Light Filter Wheel
U-FWT
Connect to one of
FW1, 2 and 3 of the
BX-UCB.
Microscope**
Reflected Light
Filter Wheel*
U-FWR
Connect to one of
FW1, 2 and 3 of the
BX-UCB.
Control Box
BX-UCB
Hand Switch
U-HSTR2
(Note) Cannot be mounted on the AX80.

U-FWT/FWR/FWO
4
VARIOUS MICROSCOPY PROCEDURES
· Using the BX2 software for PC (CD-ROM), control the filters from your PC. (automatic switching/programmed control)
· Perform required assignment to the buttons of the U-HSTR2 hand switch and control the filters from the hand switch.
ASSEMBLY
}When connection of all cables including that of the filter wheel have completed, bundle the cables using the cord clamps
provided with the BX-UCB so that they do not come in the way of operation.
1Inserting the Filters in the Filter Wheel (Figs. 1 & 2)
}With the U-FWT, the function of the U-UCD8A motorized condenser can
be extended by attaching the U-FWCO1.25X low-magnification correction
lens and U-FW32PO polarizer in addition to the filter wheel.
1. Loosen the 4 filter wheel cover clamping screws @ using the Allen screw-
driver provided with the microscope, then remove the cover.
}Filters with up to 32 mm diameter (25 mm filters can also be acceptable by
using conversion adapters*) and 6 mm thickness can be mounted on the
filter wheel. The orientation of each push ring should be determined ac-
cording to the filter thickness as shown in the table on the next page.
Fig. 1
@

5
Filter Thickness Push Ring Orientation Notes
· 4 mm or more
· U-FWCO1.25X
· U-FW32PO
· Mount the U-FWCO1.25X so that the side with 29.6 mm
diameter faces downward.
· Be sure to mount the U-FW32PO in hole No.1.
(While aligning the indexes with each other, align the
positioning pin with the groove.)
· Below 4 mm
· Conversion adapter*
* Six conversion adapters are provided for each of U-
FWR/FWO.
}The above procedures apply when a 25 mm filter is mounted on the conversion adapter.
2. By inserting the push ring driver ² which is attached by magnetic absorp-
tion to the filter wheel into the slit ³ on the push ring, insert the ring
clockwise the clamp the filter |.
}When attaching a 25 mm filter on a conversion adapter, use the smaller
blade of the ring driver ².
To prevent flare, the filter insertion section of conversion adapters is tilted
by 5°. Take care of the tilting when attaching a filter.
}Barrier filters and excitation filters have arrow indexes on their side panels.
Barrier filter: Align the arrow with the insertion direction.
Excitation filter: Align the arrow with the opposite direction to the inser-
tion direction.
3. After inserting all the required filters, attach the cover @ in the original
position.
Fig. 2
²
³
|

U-FWT/FWR/FWO
6
2Mounting the Filter Wheel on the Microscope (Figs. 3 - 5)
U-FWT Filter Wheel (Figs. 3 & 4)
}The U-FWT can be mounted only to a BX2 series microscope (BX41/51/
52/61/62 microscope frame compatible with reflected light illmination).
1. Loosen the clamping screw ² of the lift prevention pin @ using the Allen
screwdriver.
2. Loosen the 4 clamping screws ³ on each side using the Allen screw-
driver.
3. Fit the filter wheel mount | on the filter holder on the BX2 series micro-
scope.
4. While pushing down the filter wheel mount, tighten the clamping screws
³ uniformly so that the filter wheel mount is parallel with the microscope
base.
5. While pushing down the lift prevention pin @, tighten the clamping screw
².
6. Fit the filter wheel ƒ on the filter wheel mount |. During this, place the
connection cable … in the cable groove on the back side of the filter
wheel ƒ.
7. Tighten the clamping screws on the left side panel of the filter wheel using
the Allen screwdriver.
8. Connect the connection cable … of filter wheel to one of connectors FW1,
2 and 3 on the BX-UCB.
Fig. 3
Fig. 4
@
²³
|
|
ƒ
…

7
U-FWR Filter Wheel (Fig. 5)
}The U-FWR can be mounted on a BX, BX2, AX, IX or IX2 series microscope
while the projected part of the motor is positioned at the top. If there is no
interference, however, the installation direction can be changed in any
desired way without compromise in performance.
When using two U-FWR filter wheels in two stages (possible except with
the AX series), one of them should be tilted to prevent interference with the
projected part of the motor.
}When a 25 mm filter is used, light amount becomes insufficient in the
peripheral area of field in super widefield observation (FN26.5).
This is barely noticeable with FN22.
Heat Caution
Since the U-FWR is mounted near the lamp housing, its surface be-
comes extremely hot.
You may accidentally touch the U-FWR when operating the collector
lens focusing knob of the lamp housing. So we recommend that you
use the U-CLA optional extension knob.
1. Attach the lamp housing @ on the filter wheel ².
}This is because the clamping screw of the filter wheel cannot be tightened
easily after the filter wheel has been installed on the microscope.
2. Tighten the filter wheel clamping screw ³ using an Allen screwdriver.
3. Attach the filter wheel on the reflected light illuminator.
4. Connect the connection cable | of filter wheel to one of connectors FW1,
2 and 3 on the BX-UCB.
Fig. 5
@
²
|
³