Zeiss Humphrey Field Analyzer 3 User manual

Copyright
© 2014 Carl Zeiss Meditec, Inc. All rights reserved.
Trademarks
Humphrey is a registered trademark of Carl Zeiss Meditec, Inc. in the
United States and/or other countries.
All other trademarks used in this document are the property of their
respective owners.
IMPORTANT NOTE
This service document contains detailed procedures and descriptions
specially compiled for Carl Zeiss service staff. For understanding the
contents and for the reliable performance of service work, it is essential
that product-specific service training be completed with Carl Zeiss Meditec,
Inc. or a training organization commissioned by Carl Zeiss Meditec, Inc.
All information contained in the document must be treated strictly
confidentially and must not be passed on to third parties either in the
original or as a copy.

Contents
Humphrey Field Analyzer 3 Service Manual iii 2660021151225 A
Contents
HFA3 System Overview........................................................................1
About This Manual..............................................................................1
Classification / Compliance..................................................................2
System Electrical Information...............................................................2
Safety Information...............................................................................3
Symbols and Labels.............................................................................5
Protective Packing Information / Symbols.............................................7
Environmental Specifications ...............................................................7
System Fuse Replacement....................................................................8
Power Table Fuse Replacement ...........................................................8
Stimulus Projection Lamp Replacement................................................10
Air Intake Filter Replacement...............................................................13
Accessories / Supplies / Consumables ..................................................15
Hardware / Peripheral FRUs.................................................................16
Miscellaneous Parts.............................................................................17
Shipping Materials ..............................................................................18
HFA3 Repacking Instructions...............................................................20
Abbreviation Definitions ......................................................................21
HFA3 Main Assembly –830 / 840 / 850 / 860.....................................22
HFA3 Bowl Assembly –830 / 840 / 850 / 860 .....................................30
HFA3 Operator Interface Module –830 / 840 / 850 / 860 ..................38
HFA3 Patient Support Module –830 / 840 / 850 / 860........................40
Power Table Assembly.........................................................................52
HFA3 System Electrical Architecture Diagram.......................................55

Contents
Humphrey Field Analyzer 3 Service Manual iv 2660021151225 A

General Information
Humphrey Field Analyzer 3 Service Manual 12660021151225 A
HFA3 System Overview
The Humphrey Field Analyzer 3 Models 830, 840, 850 and 860 are
automatic perimeters that employ standard automated perimetry
technology for measurement of the visual field of the human eye. For a
complete description of these medical devices, including intended use /
indications for use statement, please refer to the user manual.
About This Manual
This manual is intended for use by Field Support Engineers who have
completed Carl Zeiss Meditec service training on the Humphrey Field
Analyzer 3.
The service manual is designed to support Level 1 of a two-level service
strategy. Level 1 (on-site) field service employs modular replacement of
printed circuit boards and other assemblies that are most effectively
repaired at a central repair facility. This is the service strategy used in U.S.
domestic field service, and presented in Carl Zeiss Meditec training classes.
Carl Zeiss Meditec, Inc. will make available on request circuit diagrams,
component part lists, descriptions, calibration instructions, or other
information that will assist Product-specific Trained SERVICE PERSONNEL
by Carl Zeiss Meditec, Inc. or a training organization commissioned by Carl
Zeiss Meditec, Inc. to repair those parts of the EQUIPMENT that are
designated by CZMI as repairable by SERVICE PERSONNEL.
For complete installation instructions, operation instructions,
specifications, routine maintenance, and safety information, please refer to
the user manual.

General Information
Humphrey Field Analyzer 3 Service Manual 22660021151225 A
Classification / Compliance
Class I Equipment –Protection against electrical shock.
Type B –Degree of protection against electric shock of applied
part (chin, forehead, and patient button).
Ordinary Equipment (IPXO) –Degree of protection against ingress of liquids (none).
CAUTION: This instrument has no special measures to protect
against harmful ingress of water or other liquids (classified IPXO
–ordinary equipment).
Do not place containers of liquid on or near the instrument, and
do not use aerosols on or near it.
Continuous Operation –Mode of operation.
•Not suitable in the presence of flammable anesthetic.
Complies with 93/42/EEC Medical Device Directive
Complies with US and Canadian medical electrical system safety requirements
System Electrical Information
Instrument Electrical Rating:
•100 –120V ~, 50/60 Hz, 4.0A
•230V ~, 50/60 Hz, 1.8A
Power Table Electrical Rating:
•HFA 120: 120V ~, 60 Hz, 8.0A
•HFA 230: 230V ~, 50 Hz, 6.0A
Power Outlet Ratings:
•HFA 120: 120V ~, 5A Max.
•HFA 230: 230V ~, 3A Max.

General Information
Humphrey Field Analyzer 3 Service Manual 32660021151225 A
Power Table Fuse Rating:
•T8A, 125V; (HFA 120)
•T6.3A, 250V; (HFA 230)
WARNING: Always replace fuses with the same type and
rating. Failure to do so may create a risk of fire.
Duty Cycle:
•Int. 0.8 min/21 min (HFA 120)
•Short-Time-Op 2 min, int. 1 min 19 min (HFA 230)
Load (Lift Mechanism):
•1000N Push
Protection against ingress of liquid:
•IP20 (HFA 120)
•IP30 (HFA 230)
Safety Information
WARNING: Do NOT block the ventilation openings. These allow
for the release of heat generated during operation. A buildup of
heat due to ventilation opening blockage can cause failures
which may result in a fire hazard.
WARNING: To prevent electric shock, the instrument must be
plugged into an earth grounded outlet. Do not remove or
disable the ground pin. Only an authorized Carl Zeiss Meditec
service representative may install the instrument.
WARNING: Do not use the printer or the instrument or the
power table with an extension cord or a power strip (multiple
portable socket outlet). For additional safety, do not plug the
printer and the instrument (or the power table) into the same
wall outlet. Failure to observe this warning could result in
electrical shock to the patient and/or examiner.
WARNING: Do not open the instrument covers. Opening the
instrument covers could expose you to electrical and optical
hazards.

General Information
Humphrey Field Analyzer 3 Service Manual 42660021151225 A
WARNING: If the instrument is externally connected to non-medical
peripheral devices (i.e. printer, storage devices, etc.), the complete
system must comply with the system requirements in standard IEC
60601-1. This standard requires the usage of an Isolation
Transformer to power the non-medical peripheral device(s) if
located within 1.5 m from the patient. If the peripheral device is
located outside the patient environment (beyond 1.5 m) and is
connected to the HFA, a separation device must be used or there
shall be no electrical connection between the non-medical
peripheral device and the HFA. The HFA3 Ethernet port already has
the required separation integrated within the HFA3 instrument,
and therefore can be directly connected to peripherals located
beyond 1.5 meters.
The person or the responsible organization connecting additional
devices or reconfiguring the system must evaluate the complete
system to ensure compliance to the applicable IEC 60601-1
requirements.
The instrument operator must not attempt to touch the patient and
the peripheral device simultaneously.
WARNING: Do not reconfigure system components on the table,
nor add non-system devices or components to the table, nor
replace original system components with substitutes not approved
by Carl Zeiss Meditec. Such actions could result in failure of the
table height adjustment mechanism, instability of the table, tipping
and damage to the instrument, and injury to operator and patient.
If the power table or any part of the system is reconfigured or
replaced or if any external devices are connected to the instrument,
the operator must ensure that the complete system continues to
comply with the requirements defined in IEC
60601-1.
WARNING: This instrument may cause ignition of flammable gases
or vapors. Do NOT use in the presence of flammable anesthetics
such as nitrous oxide, or in the presence of pure oxygen.
WARNING: Avoid tipping. Do not use the instrument on an uneven
or sloped surface. Also, do not roll the table in deep pile carpet or
over objects on the floor such as power cords.
Failure to observe these precautions could result in tipping of the
instrument and/or table and resulting injury to operator or patient
and damage to the instrument.
CAUTION: The appliance coupler (power cord) is the main disconnect
device of the instrument. Position the instrument in such a way to have
easy access to disconnect the appliance coupler in case of an
emergency.
CAUTION: In case of an emergency, disconnect the appliance coupler.

General Information
Humphrey Field Analyzer 3 Service Manual 52660021151225 A
Symbols and Labels
The following are the symbols (and their definitions) that MAY be found on
the Humphrey Field Analyzer 3 System:
Warning
Caution
Must Follow Inuctions For Use
Fuse
Complies with 93/42/EEC Medical Device Directive
USB Port
Network Port
Display Port
Power Switch

General Information
Humphrey Field Analyzer 3 Service Manual 62660021151225 A
Model Number
Manufacturer
Authorized European Community Representative
Serial Number
Catalog Number / Part Number
Electrical shock hazard Danger
~ Alternating Current
Version
Corrugated cardboard
Waste electrical and electronic equipment. Not for
disposal as municipal waste.

General Information
Humphrey Field Analyzer 3 Service Manual 72660021151225 A
Protective Packing Information /
Symbols
The protective packing symbols specify the handling requirements of the instrument.
Handling Requirements
Fragile, Handle with Care
Keep Dry
This End Up
Environmental Specifications
Operating Conditions
Operating Temperature: +10° C to +40° C
Relative Humidity: 30% to 90% non-condensing
Atmospheric Pressure: 700 to 1060 hPa
Max wet bulb: 78°F (26°C)
Storage and Shipping Conditions
Storage Temperature: -40° C to +70° C
Relative Humidity: 10% to 95% including
condensation
Atmospheric Pressure: 500 to 1060 hPa

General Information
Humphrey Field Analyzer 3 Service Manual 82660021151225 A
System Fuse Replacement
The Humphrey Field Analyzer 3 instrument is a modular system with
each major subsystem possessing its own power fuses.
WARNING: Only ZEISS Field Support Engineers are authorized to
diagnose power problems and replace fuses. Tampering with fuses on
the Humphrey Field Analyzer 3 instrument voids all warranties and
liabilities.
Power Table Fuse Replacement
Note: HFA 120 & HFA 230 Power Table only.
Two fuses are located just below the table power cord inlet, near the floor.
CAUTION: Carefully follow these instructions to safely replace the
table fuses. Always power down the table and unplug the power
cord before proceeding. At all times, use the minimum force
necessary to accomplish each step so as to prevent damage or
injury.
1. Power down the table. Unplug the table power cord at both ends, for
safety and easy access.
Figure 1. Table power entry module / fuse holder assembly

General Information
Humphrey Field Analyzer 3 Service Manual 92660021151225 A
Figure 2. Removing the fuse holder assembly
2. The fuse holder can be removed out of the housing by grasping it
while pressing down on the center tab of the fuse holder and firmly
pulling out.
3. Check both fuse filaments for breakage.
Fuse type and rating for both system fuses:
•T8A, 125V; (HFA 120)
•T6.3A, 250V; (HFA 230)
WARNING: Always replace fuses with the same type and
rating. Failure to do so may create a risk of fire.
4. Insert the new fuse in the holder. Slide the holder back into the
housing until it snaps closed.
5. Plug in the power cord at both ends.
6. Your table is now ready to be powered on.

General Information
Humphrey Field Analyzer 3 Service Manual 10 2660021151225 A
Stimulus Projection Lamp
Replacement
This lamp is responsible for projecting the standard light
stimulus. With the aid of color filters, it is also used to create red
and blue stimuli for color testing. If needed, you may order a
new lamp by calling the Carl Zeiss Meditec Parts Department and
asking for:
P/N 266002-1106-082 (Projection Lamp).
1. Turn off the HFA3 and lower the table.
2. You will find the Stimulus Projection Lamp access cover on
the top of the instrument.
3. Standing in front of the bowl opening, press firmly with your
finger on the latch of the cover, and lift up and pull out to
unlatch and remove it.
Figure 3. Lamp Access Cover
4. Standing in front of the bowl opening, you will find that the
projection lamp is located inside the open case top, at the 12
o’clock position.

General Information
Humphrey Field Analyzer 3 Service Manual 11 2660021151225 A
CAUTION: Allow the lamp to cool completely
(approximately five minutes) before handling it.
CAUTION: Do NOT touch the two disk-shaped filters.
5. Remove the connector cable by pulling its connector straight
upward. Then use a screwdriver to loosen the screw.
Figure 4. Connector Removal
6. Now, slide the wishbone-shaped plate that holds the lamp
assembly in place away from you.
Figure 5.

General Information
Humphrey Field Analyzer 3 Service Manual 12 2660021151225 A
7. Remove the old expended lamp assembly. Insert the
replacement lamp into the housing. Note the notch in the
base of the lamp housing lines up with the pin to the right of
the assembly.
Note: Do NOT touch the glass part of the lamp with your
fingers, as this will shorten the life expectancy of the lamp. If
your finger touches the glass portion of the lamp, wipe the lamp
clean with a soft cloth.
Figure 6.
8. Slide plate back into position, tighten screw and replace
connector cable.
Figure 7.
9. To replace the top access cover, insert the cover into the
opening and press the cover down to latch it into place.

General Information
Humphrey Field Analyzer 3 Service Manual 13 2660021151225 A
Air Intake Filter Replacement
Note: To ensure proper cooling of the instrument, the air filter must be
cleaned or replaced every three months.
1. Standing in front of the bowl opening, you will find the air filter cover
on the left side of the instrument. Press firmly with your finger or
thumb on the middle of the top surface of the cover, and push down
and pull out to unlatch it. Tilt the air filter cover open on its hinges
and remove the air filter from its two locating pins.
Figure 8.
2. Clean or replace the air filter. For cleaning, you should shake the air
filter a few times and flick it with a fingertip to dislodge trapped dust.
The filter may be rinsed with water, but make sure the filter is
completely dry before Step 3. If you wish to replace the air filter, call
the Carl Zeiss Meditec Parts Department and order a “Fan Filter”.
P/N 266002-1146-852

General Information
Humphrey Field Analyzer 3 Service Manual 14 2660021151225 A
3. Return the clean and dry air filter to the locating pins in the air filter
cover. Close and latch the air filter cover.
Figure 9.

Parts / Diagrams
Humphrey Field Analyzer 3 Service Manual 15 2660021151225 A
Accessories / Supplies / Consumables
P/N Description
2660021149285 ACCESSORY KIT HFA3 (ALL MODELS)
2660021146660 DUST COVER
2660100014176 WIPE ANTI-STATIC
2660100008025 EYE PATCH WITH ELASTIC STRAP
2660021148110 PCBA SC PROJECTION LAMP
2660021151011 CBL SERIAL DATA TRANSFER DB9 M TO F, 10FT
2660021154914 QUICK GUIDE FOR VALIDATION
2660021149222 FAN FILTER
2660021121819 CABLE NETWORK CAT5E 14FT
2660021155987 KEYBOARD w/TRACKPAD
2660100029575 PATIENT BUTTON ASSEMBLY
2660100014449 POWER CORD, (100–120V)
2660100022581 POWER CORD, EURO, CEE 7/7, 10A (220–240V)

Parts / Diagrams
Humphrey Field Analyzer 3 Service Manual 16 2660021151225 A
Hardware / Peripheral FRUs
The following list depicts the available FRUs for the Humphrey Field Analyzer 3:
P/N Description
2660021137420 CPC-2 COMPUTER ASSEMBLY (NEW)
CPC-2 COMPUTER ASSEMBLY (FUTURE USED)
2660021143355 CPC-2 COMPUTER HARD DISK DRIVE
2660021152562 PROJECTION ASSEMBLY COLOR (NEW)
PROJECTION ASSEMBLY COLOR (FUTURE USED)
2660021152563 PROJECTION ASSEMBLY NO COLOR (NEW)
PROJECTION ASSEMBLY NO COLOR (FUTURE USED)
2660021147738 BOWL ASSEMBLY 830
2660021148485 BOWL ASSEMBLY 840, 850, 860
2660021148670 FRU –HFA3 PATIENT SUPPORT 830
2660021148676 FRU –HFA3 PATIENT SUPPORT 840, 850
2660021148667 FRU –HFA3 PATIENT SUPPORT 860
2660021137419 CPS-2 POWER SUPPLY ASSEMBLY
2660021151177 FRU –KIT HFA3 HARDWARE
FRU –SC OI MODULE