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If any calibration error messages are seen, do not use the instrument for
measurement. Check the instrument as indicated and contact your local supplier
should the problem persist.
9.3. Fault analysis
9.4. Frequently asked questions
Q. What is the Pathlength of NanoVue Plus?
A. 0.2 mm or 0.5 mm. The default on Life Science applications is for the Pathlength
to be determined automatically dependent on the Absorbance of the sample.
Q. How accurate is NanoVue Plus?
A. Typically within 2%.
Q. What sort of reproducibility should be produced with NanoVue Plus?
A. Typ/- 0.005 A at low concentrations and for higher concentrations,
standard deviations are typically < 2%.
Q. Does NanoVue produce results for a continuous spectrum or just selected
wavelengths?
A. Depending on the function selected,it produces results for a continuous
spectrum from 200–1100 nm or selected wavelengths.
Symptom
Solution
Instrument fails start up calibration
Check that you are using the correct power supply. It should be an 18 V unit.
Ensure that the connector is pushed in fully at the back of the instrument.
If the problem persists please contact your supplier.
Instrument switches off after
calibration
You may be keeping you finger on the ON/OFF button too long, so that the
instrument receives both ON and OFF signals and switches off after the calibration.
Try adjusting the timing of your finger press at switch on.
If the problem persists please contact your supplier.
Instrument switches off during
measurement
Check that you are using the correct power supply. It should be an 18 V unit.
Ensure that the connector is pushed in fully at the back of the instrument.
If the problem persists please contact your supplier.
No image on screen
If the lamp can be heard buzzing at startup but there is no image on the screen,
then the display may be faulty.
Please contact your supplier.
Instrument turns on but the internal
diagnostics check for light path does
not pass
Ensure that the foam insert between the plates of the sample head has been re-
moved before start-up
What is it?
What should you do?
Cell holder obstructed (UV)
Cell holder obstructed (IR)
Check that you are using the correct power supply. It should be an 18 V unit.
Make sure the sample plates are clean, have been fitted securely and are well
seated.
Is the xenon source firing when you press
? Can you hear it buzz at start-up?
Is the power supply securely connected to the instrument?
Turn off the instrument, disconnect and reconnect the power supply and then turn
on the instrument.
If the problem persists please contact your supplier.
