For help and technical advice, please contact the Bio-Rad Technical Support department. In the United
States, the Technical Support department is open Monday–Friday, 5:00 AM–5:00 PM, Pacific time.
www.bio-rad.com
Bio-Rad Laboratories
Life Science Research
2000 Alfred Nobel Drive
Hercules, CA 94547
Online technical support and worldwide contact information are available at www.consult.bio-rad.com.
Legal Notices
Bio-Rad reserves the right to modify its products and services at any time. This instruction manual is subject
to change without notice.
Although prepared to ensure accuracy, Bio-Rad assumes no liability for errors, or for any damages resulting
from the application or use of this information.
Bio-Rad provides many resources for scientists. Bio-Rad resources and how to locate what you need are listed below.
Bio-Rad resources.
Resource How to Contact
Local Bio-Rad Laboratories Find local information and contacts on the Bio-Rad Laboratories website by selecting your country
representatives on the homepage (www.bio-rad.com). Find the nearest international office listed on the back of
this manual
Technical support scientists Bio-Rad’s technical support scientists provide our customer with practical and expert solutions.
To find local technical support on the phone, contact your nearest Bio-Rad office. For technical
support in the United States and Canada, call 1-800-424-6723 (toll-free), and select the technical
support option
Service support engineers Maintenance and repairs should be carried out only by authorized service support engineers
For service support in the United States and Canada, call 1-800-424-6723 (toll-free), and select
the technical support option to request service support
Technical notes and literature Go to the Bio-Rad website (www.bio-rad.com). Type a term in the Search box and select
Documents tab to find links to literature
Warranty
The ZOE Fluorescent Cell Imager and associated accessories are covered by a standard Bio-Rad warranty. Contact your local Bio-Rad
Laboratories office for the details of the warranty.
Safety Use Specifications and Compliance
A Warning! label in this manual warns you about sources of injury or harm, including risk of electrical shock.
Warning! Do not attempt to repair or remove the outer case of the ZOE inverted cell imager or other accessories. If you open this
instrument, you put yourself at risk for harm to body or equipment from electrical shock.
This instrument has been tested and found to be in compliance with all applicable requirements of the following safety and
electromagnetic standards.
Environmental conditions for safe operation of the ZOE
Fluorescent Cell Imager.
Transient category Installation category II
Operating power 100–240 V AC
Frequency 50/60 Hz
Electrical input 24 V DC, 100 W
Installation site Indoor use only
Operating temperature 10–31°C
Maximum relative humidity 20–80%
Altitude <2,000 m
Pollution degree 2
Degree of protection IPX0
Note: Do not store or operate the unit near a sink as contact with water could cause electric shock.
Unit is heavy, do not store or operate it at the edge of a laboratory bench. Unit must be in upright position during operation.
Condensation will form on any object when the temperature of the object is at or below the dew point temperature of the air
surrounding the object. If the instrument has been taken from a cold environment to a warmer environment, allow the instrument to
equilibrate to above the dew point temperature before operating.
Do not tip the unit over while a sample is located on the sample stage. This could cause accidental spillage of sample into the ZOE
Fluorescent Cell Imager’s optical and electronic systems, causing electrical shock and rendering unit inoperable.
Do not operate if the glass layer on the LCD screen is broken; this could injure the operator.
To prevent injury from movement of motorized stage, do not put fingers into the stage opening while the unit is powered on.
The angle on LCD screen is adjustable, keep fingers away from the back of the screen when folding down the screen. The ZOE
Fluorescent Cell Imager is factory calibrated; no further calibration is needed.
Do not connect the ZOE Fluorescent Cell Imager to a PC, it may render the device’s operating system unusable.
This instrument has been tested and found to be in compliance with all applicable requirements of the following safety and
electromagnetic standards:
n
EN 61010-1:2010 — Electrical Equipment for Measurement, Control, and Laboratory Use
n
UL Std No. 61010-1:2012 — Electrical Equipment for Measurement, Control, and Laboratory Use, Part 1: General Requirements
n
CAN/CSA C22.2 No. 61010-1-12 — Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use,
Part 1: General Requirements
n
IEC 61010-1:2010 — Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 1
General Requirements
n
IEC62471 Photobiological Safety of Lamps and Lamp Systems
n
EN62471 Photobiological Safety of Lamps and Lamp Systems
Electromagnetic Compatibility (EMC)
n
F.C.C. Title 47 Part 15B as a Class A digital device
n
IEC/EN61326-1 Class A Electrical Equipment for Measurement, Control, and Laboratory Use — General Requirements
FCC Warning and Notes
n
Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment
n
Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation
of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the
interference at the user’s own expense
n
Note regarding FCC compliance: Although this design of instrument has been tested and found to comply with Part 15, Subpart
B, of the FCC Rules for a Class A digital device, please note that this compliance is voluntary, as the instrument qualifies as an
“exempted device” under 47 CFR 15.103(c) in regard to the cited FCC regulations in effect at the time of manufacture
n
Note regarding Canadian EMC compliance: Le present appareil numerique n’emet pas de bruits radioelectrique depassant les
limites applicables aux appareils numeriques de classe A prescrites dans le reglement sur le brouillage radioelectrique edicte par le
Ministere des Communications du Canada
Canada Warning and Notes
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme à la norme NMB-001 du Canada.
This Bio-Rad instrument is designed and certified to meet EN61010* and the EMC requirements of EN61326 (for Class A) safety
standards. Certified products are safe to use when operated in accordance with the instruction manual. This instrument should not
be modified or altered in any way. Alteration of this instrument will cause the following results:
n
Void the manufacturer’s warranty
n
Void the EN61010 safety certification
n
Create a potential safety hazard
Bio-Rad Laboratories is not responsible for any injury or damage caused by the use of this instrument for purposes other than those
for which it is intended, or by modifications of the instrument not performed by Bio-Rad Laboratories or an authorized agent. We
strongly recommend that you follow the safety specifications listed in this section and throughout this manual. Use only the supplied
power cord in the instrument, making sure to choose the plug adaptor that corresponds to the electrical outlets in your region.
| iiiZOE Fluorescent Cell Imager Instruction Manual| iii
The ZOE Fluorescent Cell Imager is an inverted imaging system with brightfield and three
fluorescent channels (emitting in blue, green, and red color), suitable for routine cell culture
and imaging applications. All channels are fully integrated and optimized for most commonly
used fluorescent proteins and dyes; no calibration or installation is needed. It is a stand-alone
instrument and a PC is not needed to operate it.
The intuitive touch screen allows researchers to visualize their samples and capture cell
images with the integrated digital complementary metal-oxide semiconductor (CMOS) camera.
Images stored in the internal memory can be edited, overlaid into multicolor merges, and/or
exported to a USB key using one of the two USB ports. The integrated light shield removes the
need for a dark room and allows visualization of fluorescence in ambient light on the bench,
where researchers work with cells. The screen viewing angle can be adjusted easily and
optimized to a user’s body height.
Each LED light source provides thousands of hours of reliable illumination that are instantly
ready after power on. They provide cool, even, and continuous illumination; their brightness
can be adjusted by the user to reduce sample photobleaching.
Focusing is conducted manually using coaxial coarse/fine focus knobs located on the instrument
base in an ergonomically deduced position, thus minimizing the strain on the user’s hands.
The ZOE Cell Imager’s 20X lens is mounted in a proprietary manner that results in a large field
of view, one that is approximately equivalent to that of a 4X objective lens (0.70 mm
the pinch-to-zoom gesture, researchers can instantly change magnification while retaining
resolution of 1 µm.
Thanks to the large field of view and a motorized stage (up to 6 mm of travel), a large sample
area can be visualized rapidly. This attribute is useful when assessing transfection efficiency
or cell confluency. The direction and speed of the stage’s movement are controlled through
the touch screen.
ZOE Fluorescent Cell Imager Instruction Manual| 1
2
). Using
Instrument Overview
The front panel of the ZOE cell imager (Figure 1) includes:
n
Screen — 10.1", high-resolution, color LCD touch screen with antiglare and antifingerprint
coatings; screen angle can be adjusted to optimize viewing experience
n
Light shield — allows use of fluorescent channels in ambient light
n
Sample stage — positioned on top of the instrument base, sample stage is large enough
to fit any of the commonly used cell culture vessels
n
Objective opening — located in the center of the sample stage, objective lens is below
the opening
n
USB port — for connecting USB flash drive
n
Indicator light — glows green when instrument is powered on. If light is not on, instrument
is powered off
The right side panel (Figure 1) includes:
n
Power switch — for turning the instrument on and off
Power inlet — for connecting the imager to an electrical outlet via the supplied power cord
(select the cable with appropriate plug adaptor for your region)
Note: Hold the power cord with its flat side facing down; push into the power inlet without
blocking the locking mechanism. To remove, pull the locking mechanism to unlock the cable.
Pulling the cable without releasing the locking mechanism can result in instrument damage.
Graphical User Interface (GUI)
The touch screen commands include four functions:
n
Position — select the target sample area for cell imaging; view of the entire vessel is shown
on the LCD screen with the center of the crosshair located above the objective lens (Figure 2)
n
Live — view samples using brightfield (Figure 3) or any of the three fluorescent channels; use
this mode for image acquisition
n
Gallery — for accessing captured images stored in the internal memory
Touch screen
with antiglare and
antifingerprint
treatment
Light shield
Motorized
sample stage
Power inletUSB port
USB port
Fig. 1. Elements of the ZOE Fluorescent Cell Imager. Though not shown in full instrument image, both left and
right sides have focus knobs. (They can be seen in inset image of the back of the instrument.)
Specifications
The specifications for the ZOE Fluorescent Cell Imager are shown in Table 1.
LCD monitor 10.1", color, LCD, touch screen with antiglare and antifingerprint treatment,
1,280 x 800 pixels image resolution, 80–180° angle tilt range
Ports 2 USB ports
Dimensions 33 x 32 x 30 cm (13 x 12.6 x 11.6")
Weight 9 kg (19.7 lb)
* Brightfield channel is illuminated with green LEDs that improve image contrast by reducing chromatic aberration.
Photobleaching due to this green light source is comparable to that encountered with a regular white light.
Note: User interface controls for individual channels are labeled according to the emission colors (blue, green, and red).
2
System Components
Catalog #145-0031 includes:
n
ZOE Fluorescent Cell Imager
n
Power cord
n
USB key
n
Instruction manual
n
Quick guide
Unpacking the System Components
1. Unpack the ZOE Cell Imager carefully. Remove all packaging materials and store them for
future use. Examine the instrument carefully for any damage incurred during transit. Ensure
that all parts of the instrument listed above are included with the product. If any item is
missing or damaged, contact your local Bio-Rad office.
2. Place the imager in an upright position on a dry, level surface.
3. Thanks to its light shield, the ZOE Cell Imager can be used in ambient light; dark room
operation is not required. However, it is not designed to be operated in direct sunlight.
4. Insert the supplied power cord into the instrument with its flat side facing down and without
blocking the locking jacket.
Note: To remove, pull the locking jacket to unlock the cable. Pulling the cable without unlocking
this mechanism can result in instrument breakage.
5. Plug the power cord into the appropriate electrical outlet and the instrument will power on.
The loading screen displays. After the loading sequence is completed the Position mode will
appear onscreen.
Note: Turning the unit off by pressing the Power off button results in only partial shutoff. For
complete power off remove power cord from electrical outlet.
Menus on the touch screen can be customized. To change the default instrument settings, tap
the icon located in the upper left corner of the screen (Figure 2) and select Settings.
1. In the Settings window that opens, tap the option you want to modify.
2. Make the desired modifications and tap
Options on the following menus can be modified.
Camera
The default values for Gain, Exposure time, LED Intensity, and Contrast can be changed. The
instrument must be powered off and turned back on for new values to become active.
Preferences
The following options can be modified:
Image File Format — captured images are stored as JPEGs. Alternatives include TIFF and
RAW, but the large files of these formats slow down the operating system.
Image File Name Format — default file name format is Color_Serial number_Time stamp.
Alternatively, Color_Prefix_Time stamp allows you to use a custom prefix (for example, Hela).
Add scale bar to captured image — tap Ye s to add a scale bar to captured images; tap No
to disable the function.
Attach underlying single color images to merge — tap Ye s to export underlying single-color
images along with the merge file; tap No to disable the attach function during export to a
US B key.
Automatic export of image files to USB drive — enable automated image export to inserted
USB flash drive. Images will be saved to both the USB drive and the internal memory.
Sleep Mode — determine how long the unit should stay fully on after a user interaction. In
sleep mode certain functionalities are turned off to preserve power. The ZOE Cell Imager comes
fully back on within 20 seconds when the screen is touched.
to exit.
Date and Time
The date/time stamp is used to track images stored in the internal memory. The date and time
should be set before using the imager. Resetting the date/time after the cell imager has been
used will not affect already stored images.
ZOE Fluorescent Cell Imager Instruction Manual| 5
System
The following information is available in this menu option:
n
Legal information
n
Android version
n
Kernel version
n
Vision board drive version
n
Driver board firmware version
n
Galileo software version
n
Firmware update
n
System test posting
Firmware update
To update firmware on the instrument:
1. Insert a USB flash drive with the firmware update file into USB port. The firmware file must
be saved in the root directory of the USB flash drive
2. Tap Firmware update in the System option of the Settings menu.
3. When the instrument recognizes and validates the firmware file, it proceeds with the update.
Note: If the USB key with firmware file is not inserted, a message prompting you to do so
will be displayed. If the update file is not saved in the root directory, a “No update file present.”
message displays.
4. Tap Enter to continue updating.
5. When the update is successfully completed, the ZOE Cell Imager automatically restarts.
Note: Three types of update files may be available: a Vision board driver update, Driver board
firmware, and/or ZOE software.
If both the Vision board driver and ZOE software are updated at the same time, the Vision board
driver will be updated first. When that is completed the instrument automatically restarts itself
and repeats steps 2–5 to update the ZOE software.
If the Driver board firmware is also present, it and any other update files are automatically
updated without repeating steps 2–5.
ZOE Fluorescent Cell Imager Instruction Manual6 |
3
Viewing Cells; Capturing and
Processing Cell Images
Tap the appropriate icon, located on the right side of the touch screen (Figure 2), to access the
Position, Live, Gallery, or Merge functions.
Position Mode
The unit automatically goes into Position mode when it is powered on. The display area of the
touch screen shows the top view of the sample stage. The red crosshair is always over the
objective lens (Figure 2) and represents the actual imaging spot. Tap the Center icon to return
stage to the home position (X, Y; 0, 0) at any time.
Note: If the stage returns to center while you are viewing a sample, the sample viewing area
will change. To prevent accidental overlaying of images captured from different locations of the
sample, all images previously selected for merge (multicolor images) are cleared whenever the
stage is centered.
Settings
Access to
functional
modes
Crosshair
aligned with
objective lens
Center stage
Fig. 2. Elements of the touch screen when the ZOE Fluorescent Cell Imager is powered on. White icon shows
imager is in Position mode; other modes are grayed out.
ZOE Fluorescent Cell Imager Instruction Manual| 7
Live Mode
The Live function is used for viewing samples illuminated in one of the four channels (brightfield
or one of the three fluorescent channels) and for acquiring cell images.
Motorized Stage and Field of View
The ZOE Cell Imager’s motorized stage, with up to 6 mm of travel, enables rapid visualization
of a large sample area. Direction and speed of the stage movement are controlled through the
touch screen, and display magnification can be instantly increased using the pinch-to-zoom
gesture. X and Y coordinates (Figure 4) are updated as the stage moves. Use the Center icon
(Figure 4) to return the stage to the Home position (X,Y: 0,0).
Using the Brightfield Channel
A control panel located on the left side of the screen contains controls for switching on and off
light sources for the individual imaging channels (Figure 4). For improved image contrast, a ring
of green LEDs is the light source in the brightfield channel. ZOE uses a monochrome camera
and the resulting brightfield images are black and white.
Tap t he illumination control icon (Figure 3) to turn the LED light source on, tap again to
turn it off.
Note: Photobleaching due to this green light source is comparable to that of a regular white
light. The wavelength used does not cause the red fluorophore to fluoresce or photobleach.
Fig. 3. Brightfield channel light source on/off.
Swipe the screen to move
stage in desired direction
Settings
X,Y a xes:
2-D vertical,
horizontal
stage
positions
Z axis: Focus
position
Light
sources
Precapture
adjustments
Fig. 4. User controls available in Live mode.
Pinch-to-zoom and change
magnification
Tap to
change
functional
mode
Tap to center
motorized
stage
Tap to
capture an
image
ZOE Fluorescent Cell Imager Instruction Manual8 |
Focus position indicator on the left side of the touch screen shows the Z axis position number.
The number is updated during focusing (Figure 4). Knowing the approximate Z number for the
tissue culture vessels (Table 2) you use can speed up focusing.
Table 2. Z axis position range of tissue culture vessels.
Vessel Type Z Axis Position
Microscope slide 720 (± 100)
6-well plate 2,000 (± 100)
12-well plate 2,100 (± 100)
24-well plate 1,900 (± 100)
48-well plate 2,000 (± 100)
96-well plate 3,500 (± 200)
T25 flask 1,800 (± 200)
T75 flask 2,500 (± 200)
T225 tissue culture flask 3,200 (± 200)
Small petri dish 1,200 (± 200)
Large petri dish 1,100 (± 200)
Optimizing Imaging Parameters in Brightfield Channel
Use the Edit menu to adjust these precapture parameters (Figure 5): Gain, LED Intensity, and
Contrast values; Exposure time (msec); and quadrant illumination. Drag the slider bar to adjust a
parameter. Tap the – and + controls at either end of each slider bar for fine adjustments.
n
When searching for sample — increase Gain value for brighter signal; reduce Exposure
time for faster frame rate
n
Once the sample is identified and ready to be captured — lower Gain value to reduce
background noise; increase Exposure time to regain signal intensity
n
To further increase brightness — start by increasing LED Intensity value; follow by
increasing Exposure time if needed
n
To reduce nonspecific background signal — increase Contrast value
Fig. 5. Edit controls in the brightfield channel.
ZOE Fluorescent Cell Imager Instruction Manual| 9
Improving Image Contrast of Brightfield Channel
A ring of green LEDs is used as a light source in the brightfield channel. Using a green light
source reduces chromatic aberration and results in improved image contrast compared to
white light.
The Q1, Q2, Q3, and Q4 checkboxes at the top of the brightfield channel edit controls panel
(Figure 5) toggle quadrants of the ring of LEDs on and off. This control can be used to achieve
phase-like image contrast. Lighting only one quadrant shifts the direction of the light, resulting
in oblique illumination. The combination of on and off quadrants that provide the best imaging
performance depends on the sample.
1. Turn off three quadrants, leaving only one quadrant lit, by tapping and removing the check
mark (for ex. Q1, Q2, and Q4 are off, Q3 is on).
Note: If you leave two quadrants on, they should be adjacent quadrants, for ex. Q1 and Q2,
or Q2 and Q3, etc.
2. The imaging area will become significantly darker. Increase the Gain to compensate for loss
of illumination from the unlit quadrants.
3. If needed, increase the Contrast level.
4. Try whether using other quadrants results in better image quality for a specific sample.
5. To accept the changes, tap Apply; select Cancel to exit this dialogue window without
saving the changes.
Using the Fluorescent Channels
The ZOE Cell Imager has three fluorescent channels: blue, green, and red. Channels are named
according to the color they emit.
A control panel located on the left side of the screen (Figure 4) contains controls for switching
on and off light sources for the individual imaging channels. The viewing area shows the sample
illuminated with the selected light source; the displayed sample is pseudo-colored in the
appropriate emission color (Figure 8). Tap the illumination control (Figure 6) to turn the LED light
source on, tap it again to turn it off.
A B C
Fig. 6. Light source on/off controls. A, Blue channel light source on/off; B, green channel light source on/off; C, red channel light source on/off.
Focus — position indicator on the left side of the display area shows the Z axis position
number and is updated during focusing (Figure 4). Noting the approximate Z number for the
tissue culture vessels you use can speed up focusing (Table 2).
Optimizing Imaging Parameters for Fluorescence Imaging
Use the Edit menu to adjust these precapture parameters (Figure 7): Gain, LED Intensity, and
Contrast values; Exposure time (msec); and quadrant illumination. Drag the slider bar to adjust a
parameter. Tap the – and + controls at either end of each slider bar for fine adjustments.
n
When searching for sample — increase the Gain value for brighter signal; reduce the
Exposure time to obtain a faster frame rate
n
Once the sample is identified and ready to be captured — lower the Gain value
to reduce the background noise; increase the Exposure time to regain signal intensity
as needed
n
To further increase brightness — start by increasing LED intensity value; follow by
increasing Exposure time if needed
Gain: 1
Exposure: 50
LED Intensity: 50
Contrast: 50
Apply
Fig. 7. Edit controls in fluorescent channels.
A B
Fig. 8. Samples pseudo-colored in the appropriate emission color in Live mode. A, BPAE cells, mitochondria stained with MitoTracker red CMXRos; B, BPAE cells, F-actin stained with Alexa Fluor 488 phalloidin.
To capture the image of the sample displayed in the viewing area, tap the Capture (Figure 4)
icon. The captured image will remain displayed on the screen (action mode will change from
Live to Gallery) and the image file will automatically be saved to the internal memory. Captured
images can be edited or used in multicolor image merges. For more details go to Capturing ImagesforMulticolor Merge.
Gallery Mode
All captured images can be accessed in the Gallery mode. They are stored in image folders by
color: Brightfield, Blue, Green, or Red. Multicolor merges, created using the captured images,
are stored in the Merge folder.
The 16 GB internal memory can store approximately:
n
JPEG ~2,500 files
n
TIFF ~1,500 files
n
8-bit RAW ~400 files
n
12-bit RAW ~800 files
Note: Storing smaller numbers of images files (fewer than 1,000 JPEG files) will ensure rapid
functioning of the cell imager and will also lengthen the life span of the internal memory.
Viewing Captured Images
Controls for opening the individual folders are located in the control panel at the left side of the
screen (Figure 10). To open, tap a folder (Figure 9) and the most recently viewed image from
that folder will open. The viewing area will be black if a gallery folder is empty.
A B C D E
Fig. 9. Five image folders are accessible in Gallery mode. A, folder with brightfield images; B, folder with images
from the blue channel; C, folder with images from the green channel; D, folder with images from red channel; E, folder
with multicolor merged images.
Images in every folder are organized according to the time of capture. To move to the next
image, swipe the viewing area to the right. Swiping the viewing area to the left opens the
previously captured image.
Fig. 10. Gallery mode. Selected folder, in this case the folder with images captured using the brightfield channel,
is illuminated.
Film strip
Export to
USB key
The film strip (Figure 10) of all images stored in a particular folder is located at the bottom part
of the screen, tap anywhere in the viewing area to hide it; tap again to bring it back. A thick
border surrounds the thumbnail corresponding to the currently opened image. Tapping another
window on the film strip will open that image.
Use the pinch-to-zoom gesture to magnify the image to view more details.
Edit — brightness and contrast can be adjusted by dragging the slider bar. For fine adjustments
tap the + and – controls.
Image file Information — tapping the
icon opens a menu with information such as file
type and time stamp.
Delete — tapping the
icon brings up a “Are you sure you want to permanently delete
<file name>?” message. Select OK to delete or Cancel to cancel deletion.
Note: If you delete a merged image, the single-color image files used to create the merge will
not be deleted.
File name — the file is automatically named at the time of capture based on the selected
naming convention. To change a file name, tap the file name twice. A virtual keyboard is
displayed. When new name is typed, tap Enter on the virtual keyboard; this hides the keyboard
and records the new file name.
Export — tap to export the currently opened image onto the inserted USB flash drive.
For more details on creating merged images go to Capturing Images for Multicolor Merge.
Select for merge — tap the checkbox icon (Figure 11) to select an image for use in creating a
multicolor merge, selected images are automatically uploaded into the Merge mode.
Note: Only one image per color channel can be used. To replace a selected image with a new
one, tap the Select for merge control in the new image. This automatically overwrites the
previous selection in the particular color.
Merge selection indicator — this icon (Figure 12) shows the color of images selected to be
used in a merge. Tap the icon to move to the selected image in that particular captured
image folder.
Clear – tap to clear all existing merge selections.
A B
Select
Fig. 11. Select for merge control checkbox. A, in an unselected image in
the gallery, checkbox is dark (off); B, when the image is selected, checkbox
turns green, white checkmark appears (on).
Fig. 12. Merge selection indicator showing merged
colors. Images in the blue and green galleries are selected.
Select
Delete All Images
To access Delete all images control, tap the Settings icon in the upper left corner of the user
interface. To delete all images stored in the internal memory, select Delete all images.
In this mode previously selected single-color images are overlaid into a multicolor image
(Figure 13). For more details on capturing and selecting images for merge, go to Capturing Images for Multicolor Merge.
Individual
color
channels
can be
Active,
Inactive, or
Empty
Edit
Clear all merge selections
To save
a merge
into the
Gallery
Fig. 13. Merge mode.
Image controls located on the left side of the screen change their appearance depending on
whether an image from that color was selected (Figure 14).
A B C
Fig. 14. Color channel icons in Merge mode. A, active: color channel with selected image, the image is displayed;
B, inactive: color channel with selected image, the image is hidden; C, empty: color channel for which no image
Tapping an active channel (image is displayed) hides the particular color from display, tapping it
again makes it visible again.
Edit — tap the color for which you wish to adjust brightness and contrast. Drag the slider bar or
tap the + and – controls for fine adjustments (Figure 15).
Note: Brightfield images cannot be edited in Merge mode. Any edits to a brightfield image
must be made in Gallery mode and saved. Edits made and saved in Gallery mode to an image
selected in Merge mode will also display in Merge.
Brightness: 0
Contrast: 0
Apply
Fig. 15. Edit dialog window in Merge mode.
Cancel
Save — when satisfied with the multicolor image tap the Save icon (Figure 13). The merged
image, along with links to the underlying single-color images, is saved to the Merge folder in the
Gallery (Figure 10).
Note: When creating a merge, only color channels that are active at the time of saving
(Figure 14A) are included. If a color is inactive and thus not displayed (Figure 14B), it will not
be included.
Clear — use to clear all selections (Figure 13). This control is also available in Gallery mode.
Note: To empty a single channel, go to the individual image folder in the Gallery and tap the
active Select icon (Figure 11). The icon will go to its off state and the particular color channel in
Merge mode will be empty (Figure 14C). To replace an image, return to Gallery mode and tap
the Select icon in the image you wish to use instead.
Note: When the stage is centered, a different field of view is displayed. To prevent users from
accidentally merging images with different fields of view, all image selections for merge are
cleared when the stage is centered.
Using the ZOE Fluorescent Cell Imager’s onboard software, images from up to four channels
can be overlaid into a multicolor image merge. When capturing images that will be overlaid into
a merge, all images should come from the same area of the sample and care should be taken
not to inadvertently swipe the screen and move the stage. All images used in a merge must be
of the same magnification. Use the scale bar displayed in the lower right corner of the screen
during image capture (Figure 8) as a guide.
Note: Images of different magnification can not be overlaid; an error message will be displayed.
To capture images for a multicolor merge:
1. Go to Live mode.
2. Turn on the light source you wish to use.
3. Adjust settings in Edit if desired and tap Capture.
4. The active mode switches to the Gallery mode and the just-captured image is displayed.
If satisfied with the image, tap Select for merge (Figure 16A) in the upper right corner
of the screen. The selected image is uploaded into the Merge mode. The merge selection
indicator is automatically updated to show all colors that are currently selected
(Figure 16B).
5. Return to the Live mode and repeat steps 3 and 4 for the remaining channels that you wish
to use in the merge.
6. Go to the Merge mode where all selected images are automatically overlaid (see section
Merge mode for more details).
7. Optimize brightness and contrast in Edit if desired. Tap Save to save the merge as a singleimage file that can be accessed in the Merge folder in Gallery mode. From there it can be
exported to a USB key along with the underlying single-color image files.
Note: Only one image per color channel can be used. To replace a selected image with a
new one, tap the Select for merge control in the new image. This automatically overwrites the
previous selection in that color. To clear all previous merge selections tap the Clear control.
Fig. 16. Selecting an image for merge. A, the displayed file, BPAE tubulin.jpg, file has not been
selected for merge. The merge selection indicator (upper right side of screen) shows that an image
from the blue folder has been selected for a merge. B, the displayed image (BPAE tubulin.jpg) file has
now been selected for merge. The merge selection indicator shows that images from both the blue
and the green folders have been selected and are uploaded into the merge mode.
4
Maintenance and
Troubleshooting
The ZOE™ Fluorescent Cell Imager requires little maintenance for proper operation. However,
with long and constant use, the cell imager will need to be cleaned and some other
maintenance performed.
Cleaning the ZOE Cell Imager
The instrument should be cleaned on a regular schedule to remove any debris or dirt that might
interfere with proper function.
Cleaning the Instrument Body
Always turn off the instrument and disconnect the power cable before cleaning the case. Use a
soft, lint-free cloth and deionized water to wipe down the outer case. Avoid wetting the power
switch or the power jack while cleaning the case. To decontaminate the instrument body,
wipe it with a soft, lint-free cloth and 70% alcohol to clean the outer case. These cleaning
instructions apply only to the outer case and not to the LCD screen.
Warning! Never pour or spray water or other solutions directly on the instrument. Wet
components can cause electrical shock when the instrument is plugged in.
If you use a 10% bleach solution to clean or decontaminate the instrument, it may leave a residue
of bleach crystals that over time could scratch the surface. If bleach comes in contact with the
LCD screen, wipe down the screen with a damp cloth to remove any traces of bleach.
Do not spill liquids inside the cell imager. Do not overfill cell culture vessels or tip such a vessel
when placing it on the sample stage. This could render the cell imager not functional.
Cleaning the LCD Screen
Always turn off the instrument and disconnect the power cable before cleaning the LCD
screen. Use a soft, lint-free cloth lightly moistened with 70% isopropyl alcohol. Cleaning the
screen with excessive force can damage it. Wipe the screen dry immediately.
Warning! Do not use abrasive detergents or rough material because they may scratch the
control panel and display. Do not use bleach or water for cleaning the LCD screen as both leave
residues that make the screen appear hazy. If water must be used, it should be distilled water.
1. Raise the objective lens to its highest focus position.
2. Unplug the instrument.
3. Put a drop of recommended lens cleaner on lens tissues or cotton swab and gently wipe
the objective lens clean and dry.
Recommended Lens Cleaning Fluid
n
Lens Cleaner, Zeiss, #490133
n
Sparkle Optical Lens Cleaner, AmScope, #50104
Recommended Lens tissue
n
Commercial Grade Lens Tissue, Edmund Scientific Co., #52105
n
Cotton-Tipped Swab Applicators, Edmund Scientific Co., #56926
Warning! Do not put fingers into the stage hole or attempt to clean the objective lens while
moving the motorized stage.
The ZOE Fluorescent Cell Imager uses a 3 V lithium coin cell battery with a 10-year expected
lifetime to maintain the clock setting. If the date on the instrument changes without user input,
it may be an indication that the battery is getting weak. Should this occur, contact Bio-Rad
technical support for assistance with battery replacement.
Warning! Do not attempt to change the battery. Contact the Bio-Rad technical support team.
For the State of California (U.S.) only.
Perchlorate material — special handling may apply. See
www.dtsc.ca.gov/hazardouswaste/perchlorate for more information.
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