1314-900 Revision BA
250W Precision Calorimeter
18
Features and Settings
Over Temperature Safety
When an over temperature condition occurs the following will happen:
•
The OVER TEMP light will be on.
•
System heating and cooling will be disabled
•
The pump reset function will be disabled
•
If a program is running it will be placed in the “hold” mode
When the condition has cleared normal operation will resume. Heating and cooling will be
enabled. It will be possible to reset the pump. The OVER TEMP light will flash until the over
temperature condition has been acknowledged using the L.rS parameter in the Basic Mode.
Adaptive Fan Control
Adaptive Fan Control is a special feature designed to improve overall temperature control and
user comfort while maintaining maximum performance when needed. The most evident
characteristic is the reduced fan noise as the system approaches set point. The fan speed is
directly related to the amount of cooling required. This feature has been factory preset. Changes,
while not recommended, can be made within the “Set-Up Operator” mode described in detail
found in the TC-4300 Operators Manual.
Chiller PID Settings
The PID temperature controller parameters (TC-4300) contained within the front panel display of
the chiller can be individually set to optimize the time settling performance of the calorimeter. It
has been previously determined through testing that the following parameters are optimal for
achieving timely steady state readings from the calorimeter yet minimizing the amount of drift at
a particular power level setting:
Although these values should remain in the chiller’s memory indefinitely, should they become
deleted or set to default values for any reason, please refer to the TC-4300 operator’s manual to
change them back to the above values.
Pb
it
d
6%
1.00
0.15
Table 2: Chiller PID Setting
