Standby-Key; Switching On The Detector; Internal Software Structure - Knauer Smartlibe UV Detector 2500 Handbuch

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Standby-key

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I

Switching on the detector

Internal Software Structure

Pressing the standby key for more than two seconds switches the
instrument off (only the standby electronics is still working). In standby
mode the red LED integrated into the standby key is on. To switch the
instrument on again the standby key has to be pressed for more than one
second. Then the instrument powers up again and the red LED is off.
Connect the Detector to the power supply cable and switch on the instru-
ment. The power switch is on the rear panel.
After switching ON the display presents for a short time information
concerning the instrument and the firmware version:
*** UV-Detector 2500 ***
V3.0
Any powering up the instrument includes a check of the electronics, a
wavelength calibration, and an Autozero. Prior to this the lamp is heated
to the working temperature for about 20 seconds indicated by the
following display:
0.1 –.–––– au
HEAT
The start routine will be finished by an automatic calibration, indicated on
the display by:
calibration ...
After finishing the calibration successfully the detector is ready for use. In
the display the SIGNAL menu is shown. Nach erfolgreich durchlaufener
Kalibrierung ist das Gerät betriebsbereit.
After a period of about 10 minutes for additional stabilization the UV-
Detector is ready to work, and the baseline has stabilized.
0.1 s 0.0000 au
♦ ON
The software is divided in various menus, each of which allows particular
settings and operational modes. You reach the single menus by
positioning the cursor on the rhombus field
or ▼ keys. As indicated in Fig. 11, the menus will be called up in an
endless loop.
Now the single menus will be described in detail. Inside of any menu the
cursor can be moved to the next or predecessing field using the ► or ◄
keys respectively. There it is possible to increase or decrease the
corresponding parameter settings by help of the ▲ or ▼ keys. In some
cases you can scroll with the ▲ or ▼ keys through the available options.
Moving to an other entry field using the ► or ◄ keys respectively the
entered changes will be confirmed.
Operating the UV-Detector 2500
254 nm
254 nm
♦
followed by pressing the ▲