Biotechnology
 
    PID Autotuning Controllers

Temperature Controller


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Our new TCAT-2 family of general-purpose PID autotuning controllers provides accurate temperature control in a variety of laboratory applications

Combined with a heat lamp or heating pad, the TCAT-2 may be used to maintain the body temperature of anesthetized animals during surgery or stereotaxic procedures. Small animal cages are easily warmed with a heat lamp. The TCAT-2 may also be used in cooling applications, such as to control independent perfusate cooling systems. Realizing that laboratory applications are diverse, Physitemp can provide several versions of the TCAT Controller. The model specified depends on whether a laboratory has a general or specific need for the controller:

  • TCAT-2AC: This version controls only AC-powered heating or cooling devices such as heat lamps. It is the least costly. 
  • TCAT-LV: This model provides a low-voltage DC output for electrically sensitive applications where AC frequencies might interfere with other monitoring devices. It comes standard with a built-in DC power supply designed to operate with our HP-1M Heating Plate for small rodents. The TCAT-2LV utilizes a dual set point control circuit to prevent a heating element from overshooting the control point due to thermal lag in the control system. This is an important feature in preventing burns due to incorrect control settings or faulty feedback sensors. On a custom basis, we can provide a variety of DC power supplies depending on the load power requirements.
  • TCAT-2DF: This is a combination version that includes both an AC outlet for controlling primarily resistance loads such as heat lamps, and AC-powered warming blankets, and a low-voltage, low-noise" DC output for heating pads. This version allows you to control a variety of different loads.

All TCAT-2 versions may be used with any of our extensive line of accurate Type T thermocouple probes, which act as the temperature feedback sensor. Most commonly used are the RET series of animal rectal probes, but the IT series of implantable flexible probes and MT series of needle probes may also be used depending on the specific application. All instruments are designed to operate on a 110V or 230V AC supply.
The unit comes in a durable baked enamel-painted aluminum housing. Adjustable front feet allow the user to raise the front of the controller to provide a more convenient viewing angle.
A heat/cool switch is provided when using the controller with cooling devices such as small refrigeration compressors or thermoelectric stages. In the cooling mode, it inverts the control function and shuts off the load when the feedback sensor temperature falls below the set point. A small lamp on the front of the control unit indicates when power is being applied to the load.
The TCAT-2 is simple to set up; connect the feedback sensor to the animal and to the back of the controller, and connect the heating pad, blanket, lamp, or cooling device to the appropriate outlet on the rear of the controller. Adjust the set temperature as required (lower green display) according to the instruction label on top of the instrument. The set temperature is stored in memory after the unit is switched off.
 

Features
  • Controls heating blankets heat lamps or heating pad
  • Can be used for both heating and cooling applications
  • 110 to 230V AC line operation
  • Control Range of -100 to +400°C
  • Resolution 0.1°C

 

Accessories
Heat Lamp HL-1
An optional infrared heat lamp is table mounted with an adjustable swing arm providing for easy adjustment of radiant heat to the specimen. The lamp is supplied with a 250W (infrared) heat lamp bulb and a built-in reflector. A chrome bulb guard is also provided and easily snaps onto the lamp housing after the bulb is installed. Fits a standard 110V AC socket.

 

Specifications
Model TCAT-2
Accuracy± 0.5°C
Resolution±0.1°C
Range-100 to +400°C
ReadoutDual display of Set(green) and Run(red) temperatures
Max AC Power Output with resistive loadTCAT-2DF and TCAT-2AC: 700 watts
(Does not apply to TCAT-2LV)
DC Output RatingTCAT-2DF and TCAT-2LV: 12V DC, 2 Amps Max. Custom output voltages are available upon request (Which does not apply to TCAT-2AC)
AC ground leakage currentless than 1 milliamp at 110 V AC
Dual Setpoint Protection FeatureTCAT-2DF and TCAT-2LV only additional heating pad feedback sensors prevent temperature exceeding 40°C..
Dimensions7 1/4" W x 4 3/8" H x 10" D
WeightLess than 5 lbs.
Power Supply110V or 220 V AC
Model HL-1
Arm Length2 spring-loaded arms each 18” lengths
Table ClampStandard “U” screw clamp expands to fit bench up to 2.25” deep
Weight2 lbs.
Power110VAC
Bulb250-watt infrared heat lamp

 

Cat. No.Description
TCAT-2ACThis version controls only AC-powered heating or cooling devices such as heat lamp
(heat lamp not included)
TCAT-LVThis model provides a low-voltage DC output for electrically sensitive applications where AC frequencies might interfere with other monitoring devices. It comes standard with a built-in DC power
(heat lamp not included)
TCAT-2DFThis is a combination version that includes both an AC outlet for controlling primarily resistance loads such as heat lamps, and AC-powered warming blankets, and a low-voltage, low-noise DC output for heating pads. This version allows controlling a variety of different loads. (heat lamp not included)
HI1Heat Lamp