GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
Operation | 13
Operation
CAUTION:
Do not use in the presence of
flammable or combustible materials or explosive
gases. Fire or explosion could result, causing
death or severe injury.
Start-Up Procedure
Rotate the control knob clockwise to lower the temperature
and counterclockwise raise it.
To check chamber temperature, place a dial thermometer on
a shelf in the center of the chamber. Initially, rotate the
temperature control knob to an arbitrary setting. Allow
approximately 2 hours for the temperature to initially stabilize.
Check the temperature and compare with the dial setting.
Adjust dial further to reach the desired operating temperature.
After chamber initially stabilizes, allow 1/2 to 1 hour for the
chamber temperature to stabilize after subsequent
temperature adjustments.
Because the markings on the dial do not indicate specific
temperatures, use them AS REFERENCE POINTS ONLY for
any future setting of the temperature.
If the room thermostat is turned below 60ºF at night, consider
setting the temperature control one step colder. It should be
left at this setting for the nighttime period; return temperature
control to original setting when the room thermostat is
returned to its normal setting.
Restart Procedure
If unit is unplugged or turned off, allow 3 minutes before
restarting or plugging it back in.
How to Save Energy
•
Be sure to follow location suggestions as mentioned in
the section
•
Wipe moisture from glassware or other materials before
placing them in a unit.
•
Don't overcrowd the unit. Too many items can increase
electrical energy demand in order to keep everything
cool.
•
Close the door as soon as possible in hot, humid
weather.
•
Make certain that the door is closed tightly.
•
As soon as frost has accumulated to 1/4", defrost.
•
Keep containers covered, when possible, to reduce
moisture buildup.
•
Set operating temperature no colder than necessary for
the items being refrigerated.
Safety Tips
•
After a unit is in operation, do not touch the
cold surfaces, particularly when hands are
damp. Skin may adhere to the cold surfaces.
We recommend handling samples by
wearing gloves to avoid frost bite.
•
Never disconnect your unit by pulling the
power cord. Always grip the plug securely
and pull straight out from the outlet.
•
Do not use a power cord that shows cracks
or abrasions. Have a qualified electrician
repair or replace damaged cords
immediately.