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Constant Negative Temperature Liquid Bath

Constant Negative Temperature Liquid Bath

Overview:

The CTB Series Low Temperature Calibration Bath is a high-precision liquid bath system designed for accurate calibration and testing of temperature instruments in sub-zero and near-ambient conditions. Available in multiple models covering ranges from 0°C to 100°C, -20°C to +50°C, -40°C to ambient, and -80°C to ambient, the CTB Series provides excellent flexibility for low-temperature calibration requirements.

With a high stability of ±0.05°C, ±0.1°C and uniform temperature distribution, the system ensures reliable and repeatable calibration results. The bath utilizes a microprocessor-based PID temperature controller with a clear LED display, allowing precise temperature control and monitoring.

Engineered for laboratory-grade performance, the CTB Series features a 5-liter liquid bath tank with a defined working area and multiple sensor insertion ports, enabling simultaneous calibration of multiple probes. The system is designed to maintain consistent thermal conditions with minimal gradients, supported by good uniformity and controlled stabilization time. Supplied with essential accessories such as sensor holders, insulating materials, and traceable calibration certification, the CTB Series provides a dependable solution for calibration of thermometers, temperature sensors, and gauges. Its robust design, accurate control, and wide low-temperature capability make it suitable for calibration laboratories, research facilities, and industrial maintenance applications.

 

Constant Negative Temperature Liquid Bath Applications:

  • Calibration and verification of thermometers, RTDs, and thermocouples in low and sub-zero temperature ranges.
  • Supports checking of various types of sensors simultaneously due to large liquid tank capacity, ensuring uniform temperature exposure across all devices under test.
  • Testing and calibration of temperature sensors and probes used in cold storage, refrigeration, and HVAC systems.
  • Calibration of temperature gauges and indicators requiring stable liquid bath environments.
  • Validation and testing of temperature transmitters in laboratory and field conditions.
  • Enables simultaneous calibration of multiple sensors at one time using multi-hole provisions, improving efficiency and reducing calibration time.
  • Used in pharmaceutical and biotechnology industries for temperature-sensitive process validation and compliance.
  • Application in food processing and cold chain industries for ensuring accurate temperature monitoring.
  • Calibration support in research laboratories and metrology labs requiring precise low-temperature environments.
  • Quality control and preventive maintenance of temperature measurement instruments in industrial processes.
  • Testing of environmental and climatic sensors operating in sub-zero conditions.

 

Model CTB- 100, CTB -20, CTB -40, CTB -80
Range CTB- 100 CTB -20 CTB -40 CTB -80
0 to 99.99°C -20° to 50°C -40° to amb -80° to amb
Accuracy CTB- 100 CTB -20 CTB -40 CTB -80
±0.3°C ±0.5°C ±0.5°C ±0.5°C
Resolution CTB- 100 CTB -20 CTB -40 CTB -80
0.01°C 0.01°C 0.01 °C up to  -19.99 °C  /  0.1 °C  below  -19.99°C 0.01°C
Stability ±0.05°C
Uniformity ±0.1°C
Stabilization Time 15 minutes
Display LED Display
Medium CTB- 100 CTB -20 CTB -40 CTB -80
Water Isopropyl Alcohol (IPA) Isopropyl Alcohol (IPA) Isopropyl Alcohol (IPA)
Power Supply 230V AC ±2.5/50 Hz
Capacity 5 litres

 

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