UVP HM-4000 Multidizer - Manual (Page 10)

Hybridization Ovens
Page 10
connectors, ensure that the proper configuration of the male connector or the plug has been properly
connected to the power cord.
4. Turn the On/Off switch to the On position. NOTE: WHEN TURNED ON THE CROSSLINKER DEFAULTS
TO THE LAST USED UV EXPOSURE SETTING.
5. The last UV exposure setting will now be displayed on the LCD and the last function setting will be noted by
glowing red spot(s) on the display panel.
6. Place your sample requiring exposure into the chamber.
7. The Crosslinker can be operated on the following settings:
Preset Ultraviolet Energy Exposure
1. Press “PRESET” on the tactile touchpad. Then press “ENERGY”. The red light at each position should
now be lit and the preprogrammed UV exposure setting of 120,000 microjoules per cm² is displayed in
the LED as 1200. Note: The LCD displays “1200”. This is in hundreds and therefore must be multiplied
by 100 to obtain an exposure.
2. Press “START”. After a slight delay to energize the UV tubes, the LCD will begin to count down. The
unit automatically stops at the end of the exposure cycle and will beep five times. Exposure is now
complete.
NOTE: Though the preset UV exposure setting is factory set at 120,000 microjoules per cm², it is
possible to change this if necessary, as follows:
a. Press and hold “PRESET” on the tactile touchpad until you hear an audible signal. Then press
“ENERGY” on the touchpad.
b. Set your new preset UV exposure by pressing the numbers on the touchpad.
Remember: The number indicated on the LCD display must be multiplied by 100 to determine
the proper exposure setting. The new setting will then appear on the display.
c. Press “ENTER” on the touchpad. The new setting is now installed.
Preset Ultraviolet Time Exposure
1. Press “PRESET” and then “TIME” on the tactile touchpad. The red light at each position should now be
lit and the preprogrammed UV exposure time of 2 minutes should be displayed on the LCD.
2. Press “START” on the touchpad. After a slight delay to energize the UV tubes, the LCD will begin to
count down. NOTE: THE TIME EXPOSURE IS SET IN MINUTES AND TENTHS OF A MINUTE.
3. The unit will automatically stop at the end of the exposure cycle and will beep five times. Exposure is
now complete.
NOTE: Though the PRESET ULTRAVIOLET TIME EXPOSURE is factory set to 2 minutes, it is possible
to change this if necessary, as follows:
a. Press and hold “PRESET” on the touchpad until you hear an audible signal. Then press
“TIME”.
b. Set your new preset UV time exposure by pressing the numbers on the tactile touchpad. The
new setting will appear on the LED display.
c. Press “ENTER,” and the new setting will be installed.
User-Set UV Energy Exposure
Sometimes it may be necessary for you to set your own standards for exposure. This is easily accomplished
as follows:
1. Press “ENERGY” on the tactile touchpad, then set your energy exposure requirements by pressing
the numbers corresponding to your desired UV exposure time on the touchpad. The energy
exposure settings should now be displayed as flashing on the LCD.
NOTE: Your energy exposure settings displayed must be multiplied by 100. If the settings are
correct, press “ENTER” on the touchpad.
2. Press “START” on the touchpad. After a slight delay to energize the UV tubes, the LCD will begin
to count down. The unit will stop automatically at the end of the exposure cycle and will beep five
times. Exposure is now complete.