Cannon TE-3000, Инструкция по эксплуатации

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CANNON
® TE-3000 Thermoelectric Constant Temperature Bath
Version 1.1c — May, 2005;
CANNON
® Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
of the Control Chassis, the alcohol vapors will be contained within the air
return hose and permit the operation at low temperatures. For this condi-
tion, the display issued to the LCD will be:
RECONNECT AIR INPUT
HOSE ON BOTTOM OF
CONTROL CHASSIS.
ENTER to continue...
H. Calibration at a given target temperature
The TE-3000 temperature control system permits the calibration of the
bath temperature to agree with any user supplied temperature reference
standard. The bath can be calibrated by the user whenever the bath
temperature is stable for any given TARGET temperature in degrees
Celsius or Fahrenheit.
BIN settings For every whole degree Celsius and Fahrenheit, a calibration “BIN”
exists in nonvolatile memory within the temperature control system. The
“reference actual temperature” is entered by the user as the actual tem-
perature of the bath according to the user’s temperature reference stan-
dard and is stored by the bath in this memory and will be used whenever
that particular target temperature is entered. Fractional degrees will use
the closest whole number bin. In the following example, the target
temperature is -20 degrees Celsius and the bath temperature is stable and
controlling well /- .01 degrees. When the
CAL TEMP
key is
depressed, the display will show:
Enter Actual Bath
Temp. for Bin Offset
at -20 C: +_____ °C
CAL TEMP to Cancel
With the cursor (dark underline character) in the first position, the user
has the option of entering a negative temperature by depressing the
combination
-/.
key. If any numerical key is depressed in this first
position, the temperature entered is assumed to be positive. After this first
character entry, there are three restrictions which apply prior to depres-
sion of the
ENTER key and they are:
1. A decimal point MAY be included as an entry. It should be preceded
by at least one number or a "0".
2. The entered temperature must be within the operational temperature
range of the bath.
3. The entered actual temperature must not cause a correction in tem-
perature greater than +/- 2.5 degrees.
Multiple corrections Multiple or successive entries of correction for any temperature are
permissible. A newly entered corrected temperature is mathematically