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2: Operation
Temperature Ramping
Each of the sample holders from Quantum Northwest has a function for temperature ramping
programmed into its microcontroller. The user first allows equilibration at a particular temperature. To
initiate the ramp, the user then specifies a final temperature and increments for temperature and time. The
serial control option, allowing external control from a computer, is required for temperature ramping.
Error Conditions
Rapid flashing of the red light indicates an error condition. The common errors that will display are the
following:
•
Error conditions E5, E6 and E7 – Check Cables. One or more of these error conditions is
likely to arise if the electrical connection between the Temperature Controller and the CUV-TLC-
50F is not secure. In this case, turn off the power to the unit, check the cable, turn on the power,
and resume work.
•
Error condition E8 – Low water flow. This error condition indicates that the heat exchanger
on the thermoelectric cooler is getting too warm. This heating will occur if insufficient cooling
water is flowing into the device. Error condition E8 will automatically shut down temperature
control to prevent damage to the unit. If this occurs, improve cooling water flow and restart
temperature control.
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000-30000-000-02-0205
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