Cannon Instrument CT-2000 (Contant Temperature Bath) - Manual (Page 20)

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CANNON ® CT-2000 Constant Temperature Bath
Revision 1.0g—February, 2012; CANNON ® Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
„
MENU allows user to change temperature scale (°F-°C), reset
calibration offsets and change other system settings (See Menu
options).
Setting bath temperature
SET TEMP To set the bath temperature, choose SET TEMP from the keypad after a
successful Cold Start. The LCD will display a message requesting user
input of the new target temperature. Use the numeral keys to input the
new temperature. You may enter positive numbers from 10°C to 150°C
(50°F. To 302°F.) to three decimal places. Press the ENTER key to save
your data. The bath will attempt to control at the new temperature.
You may reset the temperature at any time.
Correcting data entry errors If you make an error while setting the temperature, press the SET TEMP
key again to exit the data entry screen. Then repeat the SET TEMP
procedure.
Lower temperatures When the desired temperature setting is slightly above, or below ambient,
coolant must be circulated through the cooling coil. Input/output connec-
tions for the coil are located on the upper portion of the rear panel.
Coolant temperature should be lower than the desired CT-2000 control
temperature.
NOTE Extreme temperatures or variability in the temperature of the coolant
liquid may adversely affect CT-2000 temperature control.
NOTE If a temperature is entered which is outside of the operational tempera-
ture range of the CT-2000, you will receive a RANGE ERROR message
on the LCD screen. To correct this error, press ENTER and follow the
screen prompts to enter appropriate data.
When the CT-2000 is controlling temperature within one tenth of a
degree, the LCD will display a temperature graph in 5/100ths of a degree
increments at the bottom of the LCD screen. A small “tick” mark above
the graph will provide a visual cue to the exact temperature of the bath
relative to the requested temperature.
TEMPERATURE
Actual Target
40.003 C 40.000 C
-.1 |....|....|....|....|+.1
I