Operation; Environmental Operating Conditions; Start-Up Procedure; Restart Procedure - Thermo Scientific 3551 Manual

Operation

Environmental Operating Conditions

POLLUTION DEGREE*:
INSTALLATION CATEGORY*:
ALTITUDE:
HUMIDITY:
ELECTRICAL SUPPLY:
VOLTAGE TOLERANCE:
TEMPERATURE:
PRODUCT USAGE:
*Refer to IEC 664-1
24
2
II
2000 Meters MSL (Mean Sea Level)
80% maximum, non-condensing
120VAC or 240VAC
±10% of normal rated line
15ºC to 40ºC
This product is intended for use indoors only

Start-Up Procedure

Rotate the control knob clockwise to lower the tempera-
ture 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 stabi-
lize. Check the temperature and compare with the dial
setting.
Adjust dial further to reach the desired operating tempera-
ture. 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, con-
sider 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.