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CWE TC-1000 Instruction Manual

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Instruction Manual
TC-1000
Temperature Controller
Read instructions carefully before operating this device.
 This device is not to be used for Human Life Support applications.
 To avoid possible electrical shock, do not operate this device if is wet or has had liquids spilled onto it.
 Service or calibration procedures should only be performed by qualified personnel familiar with the
electrical hazards of line-powered devices.
Ardmore PA 19003 U.S.A.
(610)642-7719
info@cwe-inc.com
©CWE 2023
www.cwe-inc.com

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Summary of Contents for CWE TC-1000

  • Page 1 Instruction Manual TC-1000 Temperature Controller Read instructions carefully before operating this device.  This device is not to be used for Human Life Support applications.  To avoid possible electrical shock, do not operate this device if is wet or has had liquids spilled onto it.

  • Page 2: Statement Of Warranty

    STATEMENT OF WARRANTY IF THIS INSTRUMENT FAILS WITHIN A PERIOD OF ONE YEAR FROM THE DATE OF DELIVERY OR INSTALLATION, CWE, INC. WILL, AT ITS OPTION, REPAIR OR REPLACE IT FREE OF CHARGE. THIS WARRANTY EXCLUDES DAMAGE INCURRED THROUGH MISUSE OR ACCIDENT. CWE, INC. DOES NOT ASSUME ANY LIABILITY FOR ANY CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THIS INSTRUMENT.

  • Page 3: Probe Connection

    TC-1000 Instruction Manual 1.0 INTRODUCTION The TC-1000 Temperature Controller is used to monitor and control body temperature of small animals over the range of 25 - 45°C. A linear PID (Proportional-Integral-Derivative) controller smoothly adjusts DC current flow through the heating pad, without the voltage transients associated with simple on/off controllers.

  • Page 4: Heater Connection

    C = 3.7V. 4.0 HEATER CONNECTION The TC-1000 is intended for use with resistive-type heating elements in the range of approximately 4 - 20 ohms. This corresponds to the mouse-size, rat-size and cat-size heating pads supplied by CWE, Inc. The maximum available heater power is approximately 12VDC at 3.5A.
  • Page 5 M = mouse, R = rat, and C = cat. 7.0 ALARMS AND FAULT CONDITION ALERTS The TC-1000 is equipped with a user-adjustable temperature alarm, and additional fault condition monitors. The various conditions and operator messages are described below.
  • Page 6 Probe Error - The message Check Temp Probe indicates that there is a problem with the thermistor probe: it is either unplugged from the TC-1000, broken, or out of the normal operating range. Be sure the probe is connected properly, or replace the probe if necessary.
  • Page 7 TC-1000 Instruction Manual Strategy 2: Intermittent use with one or more animals --- In this situation, the animal is warmed for a while, then removed from the pad (perhaps for a separate test or measurement, etc.), then returned to the pad. A similar situation would be to sequentially warm a series of animals (e.g., during surgery, with the pad being...

  • Page 8: Connecting An External Power Supply

    9.0 CONNECTING AN EXTERNAL POWER SUPPLY The TC-1000 is designed for direct use with heating blankets or immersion heaters in the range of 4 – 20 ohms. Lower resistance heaters can be used, but require a higher current power source than is built into the TC-1000.
  • Page 9 TC-1000 Instruction Manual 10.0 SETTING MAXIMUM PAD HEAT OUTPUT The controller firmware stores a maximum power output level for each type of heating pad. This value is automatically used when the user sets the “Pad in use” as described in Section 5.0. The purpose of this is to limit the maximum power available during heating, and thus limit the pad surface temperature.

  • Page 10: Ordering Information

    TC-1000 Instruction Manual 11.0 ORDERING INFORMATION Part No. Model Description 08-13000 TC-1000 Mouse Temperature controller with mouse probe and heating pad 08-13001 TC-1000 Rat Temperature controller with rat probe and heating pad 08-13099 TC-1000 Temperature controller, main unit only Flexible flat pad, 3 x 6” (7.6 x 15.2cm)

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