USA Lab UHC Series User Manual page 17

4.6 Operating Instructions and Notes
Only operate the unit in a climate-controlled facility. Operating temperature is 70°F or 20°C. If the
temperature exceeds 80°F or 26°C performance will be degraded.
Units returned that have signs of outside use. Will automatically be determined to be improperly used
and cared for.
Wait 12-hours after receiving shipment before operating the equipment. This gives the compressor oil a
chance to settle back inside the compressor.
When filling the unit and/or a reactor:
•
Power on the unit.
•
Fill the tank ¾ full.
•
Open the ball valve and turn on the fluid pump.
•
Continue to fill the tank watching the level. Do not allow level to drop below 1/4.
•
When the jacket is full and the tank reaches the 1/2 way point stop filling.
•
Close the lid and follow the priming instructions.
Priming instructions:
•
Power on the unit.
•
Open the ball valve.
•
Run the pump.
•
Wait for 30 minutes to allow the air bubbles to empty from the pump.
•
Then shut off the pump and close the ball valve.
Operating notes:
When using the unit always enable the pump first. Then enable the cooling AND heating functions. Both
must be used to keep temperature accuracy. Otherwise, the temperature may overshoot the set point.
When not operating the unit, close the ball valve and shut off the power.
Operating steps:
•
Power on the unit.
•
Open the ball valve.
•
Run the pump.
•
Set the target temperature.
•
Enable cooling and heating.
•
Run until the process is complete.
•
Then shut off the pump and close the ball valve.
(failure to close the valve will cause the tank to overflow)
If you have any questions on how to operate the unit further, contact the technical department.
16