Model  TC-1000  Temperature  Controller  monitors  and controls the body temperature of small animals. This micro- processor-based instrument features a low-voltage DC pro- portional controller to  provide artifact-free  heating  using a resistive  heating  blanket. The  smooth  proportional  control eliminates the  electrical transients  common to  on/off type controllers. A front-panel LCD panel displays the current body temperature, the targeted set-point temperature, alarm set- tings, and a heater power bar graph. An analog output pro- vides a linear voltage corresponding to temperature.

The controller uses standard YSI-400 series thermistor probes and our miniature TH-2K probe for mice. These inter- changeable probes are available from CWE in a variety of sizes to suit the animal being monitored. Resistive heating blankets are available in mouse, rat, or cat size. Other resis-tive-type heating devices (such as immersion heaters) can be connected, as long as the current draw is less than 3A at 12VDC.  Heater currents  up to  10A are  possible  using an external battery or power supply, accessible using binding posts on the rear panel.

The TC-1000 controller is simple to operate. After plug- ging in the probe and heating pad, the animal’s temperature is shown on the display. The adjustable set-point temperature and  alarm  band  is  also  displayed,  both  being  adjustable using a single knob. An over/under temperature alarm with adjustable hysteresis is pushbutton activated. The unit auto- matically detects fault conditions such as a defective or dis- connected probe or heating pad.

Complete systems are available for mice, rats, and cats that include the appropriate probe and heating pad

Temperature control range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 45 oC

Temperature resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 1oC

Thermistor probe compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . YSI-400 Series

Probe input connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Phone jack, 2-cond

Analog temperature output  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mV/oC

Heater blanket connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-pin locking DIN

Heater power  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12VDC @ 3A max

Power requirements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120/240VAC (switchable), 50/60Hz, 75VA

Dimensions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.4W x 4.5H x 8 inches (24 x 11.5 x 20.5 cm)