Standard operations – Hach-Lange DR 5000 User Manual User Manual

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Standard Operations

5. Select the length of time the lamp will be switched on.

Note: After this period of time the lamp automatically turns off, after no
measurement has been made outside the corresponding range (UV/VIS).

6. Touch OK to confirm.

7. Touch UV Switch key to select the wavelength value between

320 nm and 360 nm, at which the instrument changes from the
visible to UV source.

8. Use the alphanumeric keypad to enter the maximum

wavelength for UV operation.

9. Touch OK to confirm and return to “Lamp Control“.

10. Touch OK to confirm and return to “Instrument Setup“.

Note: The selected program that requires a lamp has highest priority. If the
lamp in the Lamp Control was turned off, the lamp will be turned on
automatically if it is needed for the stored program.

5.2.5.2 Effect caused by the lamp settings on the Measuring Mode

UV-Lamp switches on manually. The icon ”UV Lamp“ appears in the
display and flashes.

The instrument will display ”Lamp Warmup...“. This takes about
3 minutes.