DIALAB DTN-410 K, User Manual

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DIALAB PHOTOMETER DTN-410K USER MANUAL
!- Warnings
WARNINGS on Instrument and Laboratory practices
Please read this information carefully prior to using this instrument.
1) The unit described in this manual is designed to be operated only by trained
personnel. Any adjustments, maintenance and repair must be carried out as
defined in this manual, by a person qualified to be aware of the hazards involved.
Do not connect monitor, cables or connectors other than those furnished by our
company for the RS232C port of the instrument.
2) Do not switch the instrument ON and OFF repeatedly. Allow 20 seconds at least
before restarting.
3) In case main voltage is lower than 100 volts, use a 200W ferro-resonant voltage
stabilizer or an uninterrupted power source (UPS).
4) Always follow the general care and daily maintenance routine shown in the
maintenance section.
5) Empty cell with the SIP Key (to sip air) and clean the sipper with tissue paper
between readings.
6) In order to keep flowcell clean:
• Do not cover samples with cotton, gauze pieces or surgical bandages.
Use rubber, polyethylene, PTFE or glass stoppers.
• To operate the instrument wear adequate lintless clothing. Synthetic fabric
aprons are recommended.
• Filter reagents if they appear turbid after inspecting them against the light.
• Follow the cell and filter cleaning instructions in the maintenance section when
ending daily work.
• Do not leave the flowcell empty overnight (keep filled with distillate water).
7) Clean flow-cell and filter after daily work. Please refer to section 4.2 for details.
8) Use standards in every run. Factor values can be used instead of standards in
case:
• Reagent belongs to the same lot for which factor was determined.
• Instrument did not suffer a major repair (replacement of filters or lamp) since
last calibration.
9) To ensure adequate quality control, normal and abnormal control with assayed
values should be run as unknown samples:
•
At least every eight hours.
•
When a new container of reagent is used.
•
After any maintenance is performed or a critical component is replaced.
10) Control results are considered valid if:
•
Control values fall within the specified range.
•
Results for controls run at the beginning and end differ by an acceptable level
of variation.
Acceptable levels of variation are criteria determined by user or control
manufacturer.
11) Handling of drain hose waste must be done according your local / national
regulations on pathological residues.