Hitachi U-2910 User manual

INSTRUCTION MANUAL
2J1-9006-009 Ver.10 October. 2020
Double Beam Spectrophotometer
MODEL U-2910 UV-VIS
SPECTROPHOTOMETER
(MAINTENANCE)

This product is intended for research use only. It is not to be used for
reporting patient diagnostic or therapeutic results.
Before using the instrument, read the safety
instructions and precautions carefully.
Be sure to observe the safety instructions in this
manual and the WARNING/CAUTION labels on the
instrument.
Keep this manual in a safe place nearby so it can
be referred to whenever needed.
NOTICE:
1. The Information contained in this document is subject to change
without notice for improvement.
2. This manual is copyrighted by Hitachi High-Tech Science
Corporation with all rights reserved.
No part of this manual may be reproduced, transmitted or
disclosed to a third party in any form or by any means without the
express written permission of Hitachi High-Tech Science
Corporation.
3. Hitachi High-Tech Science Corporation assumes no liability for any
direct, indirect, or consequential damages arising from use not
described in this manual.
Utmost care must be exercised when using the instrument.
4. This document does not provide any warranty or permission for
industrial properties or any rights to grant license lawfully and
without infringement.
1-17-1 Toranomon, Minato-ku, Tokyo, Japan
Copyright © Hitachi High-Tech Science Corporation 2013. FT-T (HMS)

PREFACE - 1
PREFACE
We thank you for purchasing the Hitachi Model U-2910 Double
beam UV/VIS spectrophotometer.
This instrument is intended for photometric analysis and should not
be used for other purposes.
Note that samples that may have been infected with bacteria or
viruses are not applicable to this instrument.
This instrument is intended for use by persons having a basic
knowledge of chemical analysis procedures.
Keep in mind that improper use of analytical instruments,
chemicals or samples would result not only in wrong
analytical data but also in consequences adverse to safety.
Note that it is allowed only for persons having a basic
knowledge of chemical analysis procedures to use this
instrument.
Be sure to read this manual thoroughly before use to ensure
correct use of the instrument.
Be sure to read instruction manual also to ensure correct use of the
instrument.
ABOUT THIS MANUAL
This manual is prepared for users of Model U-2910 Double beam
UV/VIS Spectrophotometer. This manual describes the operating
instructions and maintenance/checkpoints.
At first read “IMPORTANT” (IMPORTANT –1 to 8) and
“SAFETY SUMMARY” (SAFETY –1 to 12).
Also read Instruction manual of UV/VIS spectrophotometer
(both operation manual and maintenance manual).
The cautionary instructions concerning safety are also contained in
the maintenance edition of the instruction manual. Be sure to
read them before attempting use.
If installation of this accessory is not finished read chapter one.
Contents of “IMPORTANT” and “SAFETY SUMMARY” is applied
to parts supplied with this accessory.

IMPORTANT - 1
IMPORTANT
Information for Users on WEEE (only for EU Countries)
This symbol is in compliance with the Waste Electrical and
Electronic Equipment directive 2012/19/EU (WEEE).
This symbol on the product indicates the requirement NOT to
dispose of the equipment as unsorted municipal waste, but use
the return and collection systems available.
Information on Disposal for Users
1. In the European Union
If you need to discard this product or discard user serviceable
parts:
Please contact your local sales representative or distributor who
will inform you of the recycle of the product.
You might be charged for the costs arising from take-back and
recycling.
2. In other Countries outside the EU
If you wish to discard this product, please contact your local
authorities and ask for the correct method of disposal.
Instruction Manual for U-2910
Cautions
The following is a statement of notice about EMC for Korea.
A급기기 (업무용 방송통신기자재)
이 기기는 업무용 (A급) 전자파적합기기로서 판매자 또는 사용자는
이 점을 주의하시기 바라며,
가정외의 지역에서 사용하는 것을 목적으로 합니다. (O)

IMPORTANT - 2
Warranty on Product
This product, inclusive of its accessories, is warranted to be free
from defects in material or workmanship under normal use within
the product specifications indicated in this manual and under
conditions given below.
This warranty is void if the instrument is not used according to
the instruction manual.
(1) Scope of Warranty
Any parts that prove to be defective in design or
workmanship during the warranty period will be repaired,
adjusted or replaced without charge. A substitute part may
be used for repair, or replacement with an equivalent
product may be made instead of repair. Such system
components as a personal computer and printer to be
updated frequently for improvement may not be available in
original versions at the time of replacement.
The manufacturer assumes no liability for any damage to
data or application software due to any possible fault or
failure of this instrument.
(2) Warranty Period
One year from the date of initial installation
(In case a separate warranty document has been issued,
the warranty period indicated in it takes precedence over
the above period)
Consumables such as WI and D2lamps are excluded from
warranty.

IMPORTANT - 3
(3) Limitations and Exclusions on Warranty
Note that the following cases are excluded from the scope
of this warranty, i.e., these cases are beyond the coverage
of free-of-charge repair even during the warranty period
indicated above.
(a) Failure due to operation at a place not meeting the
installation requirements specified by the
manufacturer.
(b) Failure due to power supply voltage/frequency other
than specified by the manufacturer or due to
abnormality in power supply.
(c) Corrosion or deterioration of the piping due to
impurities contained in gas, compressed air or
cooling water supplied by the user.
(d) Corrosion of the electric circuits or deterioration of
the optical elements due to highly corrosive
atmospheric gas.
(e) Failure due to use of software, hardware or spare
parts not supplied by the manufacturer.
(f) Failure due to use not described in the manual or
improper repair not approved by the manufacturer.
(g) Failure due to maintenance or repair by other than
service personnel qualified by the manufacturer.
(h) Failure due to relocation or transport conducted not
under the supervision of the manufacturer after the
initial installation of the instrument.
(i) Failure due to disassembly, modification or relocation
not approved by the manufacturer.
(j) Failure due to acts of God, including fire, earthquake,
storm, flood, lightning, social disturbance, riot, crime,
insurrection, terrorism, war (declared or undeclared),
radioactive pollution, contamination with harmful
substances, etc.

IMPORTANT - 4
(k) Failure of the hardware, or damage to the system
software, application software or data due to
computer virus infection.
(l) After disposal of this instrument, after its resale
without prior approval from the manufacturer,
consumable parts, and failure of any part that have
reached the end of its service life.
(m) Failure due to a life-limited part that has exceeded
the end of its useful lifetime.
(4) Disclaimer of Warranty
THE MANUFACTURER MAKES NO WARRANTIES,
EITHER EXPRESS OR IMPLIED, EXCEPT AS
PROVIDED HEREIN, INCLUDING WITHOUT LIMITATION
THEREOF, WARRANTIES AS TO MARKETABILITY,
MERCHANTABILITY, FOR A PARTICULAR PURPOSE
OR USE, OR AGAINST INFRINGEMENT OF ANY
PATENT. IN NO EVENT SHALL THE MANUFACTURER
BE LIABLE FOR ANY DIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OF ANY NATURE, OR
LOSSES OR EXPENSES RESULTING FROM ANY
DEFECTIVE PRODUCT OR THE USE OF ANY
PRODUCT.
NO ORAL OR WRITTEN INFORMATION OR ADVICE
GIVEN BY THE MANUFACTURER, ITS DEALERS,
DISTRIBUTORS, AGENTS OR EMPLOYEES SHALL
CREATE A WARRANTY OR IN ANY WAY INCREASE
THE SCOPE OF THIS WARRANTY.

IMPORTANT - 5
Service Life of This Instrument
This instrument has a useful service life of seven years after the
date of its initial use (installation), which is estimated under the
condition that periodic maintenance, checkup, replacement of
life-limited parts, and repair of worn parts are carried out as
specified in the present instruction manual.
(In use of the instrument under standard operating conditions
(8 h/day, 20 days/month))
For using the instrument beyond the useful service life, it shall be
checked for safety by Hitachi High-Tech Science Corporation
sales representative or service office of Hitachi High-Tech
Science Corporation sales representative. (This safety check
will be available on a chargeable basis.)
If use of the instrument is continued without receiving the safety
check, the instrument might become faulty and cause a danger.
Note that replacement may be recommended as a result of the
safety check.
Installation, Relocation and After-sale Technical Service
(1) Installation and Relocation
(a) Installation at delivery shall not be carried out by the
user. It shall be carried out by our sales
representative or the engineers who have been
trained and qualified for this purpose by us in order to
use the instrument safely and accurately.
(b) Before installation, the user shall make preparations
for satisfying the installation requirements in
accordance with this instruction manual.
(c) If relocation becomes necessary after initial
installation (delivery), please contact the dealer from
whom you purchased the instrument or our sales
representative.
(2) After-sales Service
(a) For after-sales service, contact our sales
representative or service office of our sales
representative.

IMPORTANT - 6
(b) For service after the warranty period, consult our
sales representative or service office of our sales
representative with regard to a maintenance and
inspection service contract. (Service will be available
on a chargeable basis.)
(c) The maintenance and consumables of the instrument
can be supplied within the useful service life of the
instrument (7 years). Even after the period of useful
service life, the parts and units can be supplied
(within 10 years after the date of initial use) so far as
they are obtainable. However, this measure will not
lead to an extension of the 7-year useful service life
which is assured by the manufacturer.
And, if a part or unit is unavailable due to the
discontinuance of its manufacture, a substitute part
or unit may be supplied, for which we request your
understanding.
(d) It may be impossible to supply the main unit
components other than the maintenance parts and
consumables due to the discontinuance of main-unit
manufacture, etc. If the instrument becomes faulty,
it might be irreparable due to lack of such
components. In this case, the user is requested to
stop operation and replace the instrument with a new
one.
Technical Seminars and Training Courses for Users
We offer technical seminars and training courses at either our or
user’s facilities to ensure proper and safe operation of the
analytical instrument to its full performance. For further
information, contact our sales representative. (Applicants will be
charged.)

IMPORTANT - 7
Other Precautions
Handling of Chemicals and Samples
(1) The user is responsible for following relevant legal
standards and regulations in handling, storage and
disposal of chemicals and samples used in analytical
operations with this instrument.
(2) Reagents, standard solutions and accuracy-control
samples shall be handled, stored and discarded as
instructed by the respective suppliers.
(3) Samples that may have been infected with bacteria or
viruses are not applicable to this instrument.

SAFETY - 1
SAFETYSUMMARY
Precautions on Safety
Before using the Model U-2910 Double beam UV/VIS
spectrophotometer, be sure to read through and understand
the safety instructions given below.
The hazard warnings that appear on the warning labels on the
product or in the manual have one of the following alert headings
consisting of an alert symbol and signal word DANGER,
WARNING or CAUTION.
: A safety alert symbol. Precedes every
signal word for hazard warnings, and
appears in safety related descriptions in the
manual. Be sure to observe all the safety
messages following this symbol.
Failure to do so could result in serious injury
or even death.
DANGER : Indicates an imminently hazardous situation
which, if not avoided, will result in death or
serious injury.
(This warning does not apply to this product.)
WARNING : Indicates a potentially hazardous situation
which, if not avoided, can result in death or
serious injury.
(This warning does not apply to this product.)
CAUTION : Indicates a hazardous situation which, if not
avoided, will or can result in minor or
moderate injury, or serious damage of the
product.
NOTICE :Used to indicate an instruction for preventing
damage to the instrument, damage to data,
and/or environmental pollution and does not
concern personal safety directly.
Other than the above, cautions for using Instrument correctly are
shown in NOTE.
NOTE: Used to indicate an instruction for ensuring proper use
of the product, so as to achieve accurate measurement
and avoid any malfunction.

SAFETY - 2
SAFETYSUMMARY
Common Safety Precautions
Cautions Prior to Use
Read carefully the instruction manual and understand the
contents before starting operation.
Keep this instruction manual at hand so that you can read it
anytime.
Follow the procedures indicated in this manual for handling the
product.
Be sure to understand and observe all of the safety instructions
in the manual.
Make sure to observe all the hazard warnings attached to the
instrument or provided in the manual. Failure to do so could
result in personal injury and/or damage to the instrument.
Be sure to follow all the methods of use instructed in the manual
for operating the product.
Do not modify the instrument, use non-specified parts, nor
remove safety devices as it could be hazardous.
Do not perform any operation or action other than described in
this manual. When in doubt, please contact your nearest
Hitachi High-Tech Science Corporation service office or
representative.
When using a chemical for analytical operation, be sure to
provide proper ventilation in the laboratory room as per local
requirements.
Inadequate ventilation could endanger your health.
Keep in mind that the hazard warnings in the manuals or on the
product cannot cover every possible case, as it is impossible to
predict and evaluate all circumstances beforehand. Always be
alert and use your common sense.

SAFETY - 3
SAFETYSUMMARY
Common Safety Precautions (Continued)
Cautions In Use
If an abnormality such as unusual noise, odor, fuming or gas
leakage occurs during operation of the instrument, immediately
disconnect power to the instrument, and take proper safety
measures as required. Then, notify your nearest Hitachi
High-Tech Science Corporation sales representative or service
office of Hitachi High-Tech Science Corporation sales
representative.
Installation, Maintenance, and Relocation
At the time of delivery, installation of the instrument shall be
carried out by or under supervision of qualified service
personnel of the manufacturer or its authorized service agent for
ensuring safety and high accuracy in operation of the instrument.
It is not permitted for the user to carry out installation.
After completion of installation, check that all the standard parts
are equipped. If the instrument is made active with any one of
the standard parts not equipped, a failure could occur to result
in a hazardous condition.
If any item is missing or damaged or if you have any question,
notify the installation personnel at site or your nearest Hitachi
High-Tech Science Corporation sales representative or service
office of Hitachi High-Tech Science Corporation sales
representative.
The maintenance and checkup procedures to be taken by the
user are only those described in the manual. When taking the
maintenance and checkup procedures described in the manual,
attain a clear understanding of them.
Do not perform other maintenance and checkup procedures to
avoid jeopardizing safety and causing troubles in the instrument.

SAFETY - 4
SAFETYSUMMARY
Common Safety Precautions (Continued)
Cautions on Installation, Maintenance, Relocation
After installation, do not relocate the instrument. If the
instrument is relocated, vibration or impact to be applied during
relocation could cause a malfunction in the optical components
that have been adjusted precisely.
If any warning/caution label has become illegible due to
deterioration with age or it has been damaged due to any cause,
notify your nearest Hitachi High-Tech Science Corporation sales
representative or service office of Hitachi High-Tech Science
Corporation sales representative for replacement with a new
one.
The parts having a useful lifetime indicated in this manual must
be replaced periodically as specified. If the instrument is
operated though the replacement of life-limited parts has
already been required, the instrument might become faulty due
to part deterioration, etc., causing leak, fuming, combustion or
the like trouble on safety.
For other than the replacement procedures instructed in this
manual, contact your nearest Hitachi High-Tech Science
Corporation sales representative or service office of Hitachi
High-Tech Science Corporation sales representative.
For reducing a risk of trouble occurrence due to physical
deterioration, it is requested to carry out the safety check
(available on a chargeable basis) or replacement with a new
one when the instrument has reached the end of its useful
service life.

SAFETY - 5
SAFETYSUMMARY
Safety Instructions in This Manual
Shown below are the safety instructions contained in this manual
and their relevant sections in it.
DANGER Indications
The indication” DANGER” does not apply to this instrument.
WARNING Indications
Electric Shock upon touching Hazardous Voltage (500 V)
Touching the D2lamp power supply voltage (500 V) may cause an
electric shock, resulting in fatal or serious injury.
Before replacing the D2lamp, make sure that the POWER switch
of the spectrophotometer main unit is turned OFF. (Chapter 5)
Electric Shock upon touching Hazardous Voltage
Touching the power supply voltage may cause an electric shock,
resulting in fatal or serious injury. Before connecting the power
cord, make sure that the POWER switch of the spectrophotometer
main unit is turned OFF. (Chapter 1)

SAFETY - 6
SAFETYSUMMARY
CAUTION Indications
Fatigue due to Long Hours of Operation
Operation while watching the display in the same posture for long
hours will cause fatigue to accumulate in the eyes and body.
To avoid this, one should take a break for 10 to 15 minutes at
every hour in order to rest the eyes and body.
Burns upon touching Hot Surface
The D2lamp and WI lamp are very hot. Touching the lamp can
burn you.
Turn off the POWER switch and allow the lamps to fully cool down
before replacing or adjusting the lamp. (Chapter 5)

SAFETY - 7
SAFETYSUMMARY
NOTICE
Disposal of Waste Solution
Be sure to collect waste solution and treat it for proper disposal in
accordance with the relevant laws and regulations regarding water
pollution control and sewage treatment.
Improper treatment of waste solution may result in environmental
pollution and could also lead to a penalty.
Accuracy and Precision of Measured Values
Carry out periodic inspection and check whether the system is
operating normally. If necessary, conduct measurement on a
control sample.
Data Backup Data stored on the hard disk may become unusable due to a
system failure, wrong operation, computer virus infection, etc. To
ensure data integrity in case of accidental damage to the hard disk,
periodically make backup copies of hard disk files onto floppy
disks.
To prevent an erroneous operation on the hard disk, always
reserve approx. 100 MB of free space as a working area for
application software.

SAFETY - 8
SAFETYSUMMARY
NOTICE (Continued)
Protection against Computer Viruses
If any program/data is damaged suddenly or an unexpected
operation/screen is encountered, the personal computer is
suspected of being infected by a computer virus.
Computer viruses are malicious programs that sneak into personal
computers to cause misbehavior or damage to data. And, a
program designed to offer protection against computer viruses is
called a vaccine program.
Possible causes of virus infection are:
Downloading a virus-laden program through communication.
Using a floppy disk or other storage medium infected by a virus.
Note also that once any personal computer is infected by a virus, it
may spread to other computers via communication or storage
medium.
Never use a program or storage medium that is suspected of
containing a virus.
If there is a possibility of virus infection, check for a virus using a
vaccine program. Note, however, that some kinds of vaccine
programs cannot eradicate particular viruses. So, be sure to
make a backup of hard disk files beforehand.
The user is requested to prepare a vaccine program and carry out
virus removal on his or her own responsibility.

SAFETY - 9
SAFETYSUMMARY
NOTICE (Continued)
Power Interruption
On occurrence of momentary power voltage drop due to power
interruption or lightning, the personal computer may become faulty
or the system software, application software or data may be
damaged. For protection against momentary power voltage drop,
it is advisable to use an AC uninterruptible power supply unit
(stated according to the Japanese Electronic Industry Development
Association guidelines for protection against momentary power
voltage drop in personal computers).
Turning On/Off Personal Computer
Do not turn off power to the personal computer while the hard disk
or floppy disk drive is active. If power to the personal computer is
turned off while the hard disk or floppy disk is being accessed, the
personal computer may become faulty or data/software stored in it
may be damaged.
Before turning off power to the personal computer, be sure to quit
the fluorescence spectrophotometer control/data processing
program (UV Solutions program) first and then take the shut-down
procedure using the system software.

SAFETY - 10
SAFETYSUMMARY
NOTICE (Continued)
Burst of a lithium battery
This spectrophotometer uses a lithium battery to backup the data
in the memory. A lithium battery may burst should it be handled
improperly. Be sure not to attempt to charge, disassemble, nor
throw into the fire, under any circumstance. The battery should
be handled with a strict separation from non-industrial wastes.
When the lithium battery needs to be replaced (for example, when
an error message RAM NG (RAM failure) appears frequently on
the screen, it may be attributable to deterioration of the battery),
contact our sales representative for this spectrophotometer or our
service office nearest.
Entrust the battery replacement to the service person qualified
through our technical training course therefor. (Battery
replacement after expiration of the warranty period is a
fee-charging service.) (This term is not mentioned in the text of
this instruction manual.)
Caution in Moving Instrument
This spectrophotometer is a heavy article, which weighs about 29
kg. In moving the instrument, engage two persons for safe
handling. Hold the instrument firmly at both sides thereof, then
move very carefully to prevent injury due to accidental dropping.
(Chapter 1)
Prevention of Falling or Toppling
This spectrophotometer may accidentally fall to injure. Secure
each unit of the spectrophotometer on installation. (Chapter 1)