2
World Precision Instruments
were determined for a set of characteristics designed to emulate a real subject. If the
desired results are not achieved, the PID values can be adjusted to compensate for
the difference. As an alternative, use the adaptive mode of the controller.
HEATER PLATE
SPECIMEN
PROBE
Fig. 2—The conduction of heat depends on the size of the subject, the contact the subject
has with the plate and the conductivity of the subject itself.
The controller has three temperature sensing inputs.
•
The resistive temperature device (RTD) probe input can be used to monitor
an RTD rectal probe to control the animal temperature or to monitor
ambient temperature, induction chamber temperature or any other
temperature.
•
When using a thermocouple probe, the thermocouple (TC) probe input can
be used just like the RTD input. (A T type thermocouple must be used.)
•
The heater plate also has an internal temperature sensor. The
ATC2000
monitors this sensor to prevent the localized hot spots under animal.
The controller has three modes of operation (“MODE” on page 8):
•
Normal mode uses the configured sensor (RTD or TC) to control.
•
Adaptive mode uses the temperature of the heated plate and the
temperature of the subject to control. This approach is less prone to
overshoot, but somewhat slower than normal mode, depending on the
sampling rate used.
•
Shutdown is a fail safe mode used if the plate temperature ever exceeds your
shutdown set point. By default the shutdown set point is 37ºC.
The
ATC2000
is tuned at the factory. However, the PID parameters may also be set
manually. (See “Setting PID Parameters” on page 13.) The temperature resolution
of the controller is 0.1°C. The rectal temperature probe has a 6’ ultra-flexible, shielded
cable and an RTD sensor.
NOTE
: When using the
ATC2000
with the
61800
Heating Plate (15 x 4 cm) and a
stereotaxic frame, a rubber foam pad (included with the
61800
Heating Plate) may be
attached to the bottom of the heating plate. The pad acts an insulator to prevent heat
transfer into the base of the stereotaxic frame.
Parts List
After unpacking, verify that there is no visible damage to the sensor. Verify that all
items are included:
(1)
ATC2000
Animal Temperature Controller
(1) Power adapter
(1) Instruction Manual
Содержание ATC2000
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