Programming Your Hotblock® Tkn; Safe-Sample™ Temperature Protection - Environmental Express HotBlock TKN System Operation & Instruction Manual

HotBlock TKN: Operation & Instruction Manual
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Programming Your HotBlock® TKN System
Other methods or variations of the TKN method can be programmed into the
HotBlock® TKN controller. The touch-screen controller can save up to 4 different
profiles. Ensure that the block is turned off prior to inserting or removing cables
from the controller. Follow the instructions below for help in creating your own
profile on the touch-screen controller.
Touch-Screen Controller:
1. From the main menu page, touch the Single Control Station 1 button.
2. To create a new profile, select any unused profile number. Or select a previously
created profile to edit. We strongly recommend that the default profile (1) not be
altered. This will serve as a template for use in creating future profiles.
3. Under 'Step Type' touch the button to cycle through the choices: Time, Soak,
or End.
a. Time: Use to specify the length of time the block will take to heat to the next
temperature. This only works when increasing the temperature. The block
does not have active cooling and cannot reliably use a time function to go
down in temperature set point.
b. Soak: Use to hold the block at a temperature for a specific length of time.
c. End: Signifies the end of the program. All active heating will cease until the
block cools down to the default set point.
4. Control Mode 1 should always be set to Auto.
5. Target Set Point 1 is the temperature that the block will ramp to or hold,
depending on the Step Type selected.
6. Hrs, Mins, and Secs specify the length of time to hold the temperature during
Soak or the length of time the block will use to reach a specific set point
during Time.
7. Always select End as the final step in a profile.
Safe-Sample™ Temperature Protection
Your HotBlock® TKN unit is designed to protect from runaway temperatures by an
alarm system. In the unlikely event that the heating system fails to respond to the
controller, the Safe-Sample™ system will automatically shut the system off and
sound an audible alarm.
This alarm sequence occurs if the actual temperature of the block reaches a
temperature that is fifteen degrees higher than the set point temperature. If this
should occur, the HotBlock® TKN will stop heating, preventing the loss of samples.
The HotBlock® TKN must be turned off, then turned back on to reset the alarm.
Operation Information
Environmental Express • 6