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Temperature and Humidity Calibration Chamber for Thermometers and Hygrometers

The Temperature and Humidity Calibration Chamber for Thermometers and Hygrometers is specially designed for high-precision calibration of environmental measuring instruments such as thermometers, hygrometers, data loggers, and humidity sensors. It provides a stable and controllable climatic environment, ensuring that all measurement devices can be verified and adjusted under accurate and repeatable conditions. With a temperature range from –40 °C to +100 °C and humidity control from 20 % to 98 % RH, the chamber delivers reliable reference conditions for laboratory calibration work. A PT100 temperature sensor and a capacitive humidity sensor provide accurate and reliable environmental control. The equipment maintains temperature stability within ±0.3 °C and humidity deviation within ±2 % RH, ensuring traceable, repeatable, and consistent calibration results.
 
This temperature and humidity calibration chamber is widely used in metrology institutes, quality inspection laboratories, electronics manufacturing and calibration centers. It plays a critical role in ensuring that measuring instruments maintain long-term accuracy in real operating environments. By simulating stable climatic conditions, the equipment allows users to compare device readings against reference standards, identify deviations, and perform necessary corrections before instruments are deployed in the field. This significantly improves measurement reliability and ensures compliance with international calibration requirements.
  • TH-50/ TH-80

  • LIB Industry

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The Temperature and Humidity Calibration Chamber for Thermometers and Hygrometers features a compact benchtop structure with working volumes typically ranging from 50 L to 100 L, making it ideal for laboratories where space is limited but accuracy demands are high. Despite its small footprint, the equipment provides full-scale environmental simulation performance with uniform airflow distribution and minimal spatial deviation. The noise level is controlled at ≤65 dBA, allowing quiet operation in shared laboratory environments without affecting precision measurements or operator focus. The interior is constructed from SUS304 stainless steel, ensuring corrosion resistance, easy cleaning, and long-term durability under frequent humidity cycling conditions.


Advantages of LIB Temperature and Humidity Calibration Chamber

1. High-Precision Calibration Performance: Equipped with a PT100 Class A temperature sensor and a capacitive humidity sensor, the chamber ensures temperature stability within ±0.3 °C and humidity accuracy within ±2 % RH. This high level of precision is essential for reliable and traceable instrument calibration.

2. Compact Benchtop Design: With a small footprint of approximately 0.9 m², the chamber can be placed directly on laboratory benches or workstations, making it ideal for space-limited calibration labs.

3. Wide Calibration Range: The system supports –40 °C to +100 °C and 20 % to 98 % RH, allowing full-range calibration of sensors used in industrial, medical, and environmental monitoring applications.

4. Excellent Temperature and Humidity Uniformity: Optimized airflow circulation ensures consistent temperature and humidity distribution throughout the chamber, eliminating measurement deviation caused by uneven exposure.

5. Intelligent Control Programs: The 7-inch touchscreen controller supports up to 120 programs, enabling unattended operation and improving testing efficiency.

6. Stable and Durable Structure: SUS304 stainless steel interior and reinforced outer casing ensure long service life and resistance to moisture, corrosion, and chemical exposure.


Performance Specifications

Model

TH-50

TH-80

Internal Dimension (mm)

320*350*450

400*400*500

Overall Dimension (mm)

820*1160*950

900*1210*1000

Interior Volume

50L

80L

Heat load

1000W

Temperature Range

A : -20℃ ~ +150 ℃

B : -40℃ ~ +150 ℃

C: -70℃ ~ +150 ℃

Temperature Fluctuation

± 0.5 ℃

Temperature Deviation

± 2.0 ℃

Humidity Range

20% ~ 98% RH

Humidity Deviation

± 2.5% RH

Cooling Rate

1 ℃ / min

Heating Rate

3 ℃ / min

Cooling system

Mechanical compression refrigeration system

Controller

Programmable color LCD touch screen controller,Ethernet connection, PC Link

Safety Device

Humidifier Dry-combustion protection; Over-temperature Protection; Over-current Protection;

Refrigerant High-pressure protection; Water Shortage Protection; Earth leakage Protection

Exterior Material

Steel Plate with protective coating

Calibration Sensors PT100 Class A Temperature Sensor and Capacitive Humidity Sensor


Typical Calibration Applications

The Temperature and Humidity Calibration Chamber is widely used to calibrate and verify thermometers, hygrometers, temperature and humidity sensors, and other environmental monitoring instruments. During calibration, the equipment creates stable temperature and humidity conditions so that instrument readings can be compared with reference standards. For example, the equipment can be set to 25 °C and 50 % RH for standard calibration, 40 °C and 85 % RH to check performance in high-humidity environments, or 0 °C to verify low-temperature accuracy. This helps ensure that measuring instruments provide reliable and accurate readings under different operating conditions.


Video of the Temperature and Humidity Calibration Chamber for Calibration


FAQs on the Temperature and Humidity Calibration Chamber

Q1: What instruments can be calibrated in a Temperature and Humidity Calibration Chamber?

The equipment is suitable for calibrating thermometers, hygrometers, temperature and humidity sensors, environmental monitoring devices, and other measurement instruments that require accurate temperature and humidity verification.

Q2: What temperature and humidity ranges are available for calibration?

The chamber provides a temperature range from –40 °C to +100 °C and humidity control from 20 % to 98 % RH, covering most calibration and verification requirements.

Q3: Can multiple sensors be calibrated at the same time?

Yes. As long as airflow is not blocked, multiple thermometers or hygrometers can be calibrated simultaneously under identical conditions.


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