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Portable Temperature Humidity Calibration Chamber for Thermometers and Hygrometers5

Portable Temperature Humidity Calibration Chamber for Thermometers and Hygrometers4

Portable Temperature Humidity Calibration Chamber for Thermometers and Hygrometers

LIB Portable Temperature Humidity Calibration Chamber provides a stable temperature and humidity environment for verifying and calibrating thermometers, hygrometers, humidity sensors, and other environmental monitoring instruments.With precise PT100 temperature measurement and capacitive humidity sensing technology, the chamber delivers reliable calibration conditions for laboratories, manufacturers, and quality control departments.

High-precision PT100 sensor (0.001℃) + capacitive humidity sensor with PID control
Programmable color touch screen, Ethernet / PC Link
Temperature range down to -70℃ (option), Humidity 20%~98%RH
Temperature accuracy up to ±0.5℃ Humidity control accuracy ±2%RH

Model: THC-50, THC-80

Standard: AAMA501, ASTM D4169-16, IEC 61215, IEC 61646, IEC61108, IEC62688, MIL-STD-812D,SAE J575

How It Works & What Makes It Different

This Portable Temperature Humidity Calibration Chamber uses a capacitive humidity sensor with PID control for humidity, paired with a built-in water tank for humidification — rather than a traditional wet/dry bulb (psychrometer) setup. This means faster response and no gauze/wick maintenance, but it does still require periodic water refill, and is not a "no water needed" device. Customers requiring ISO/IEC 17025 traceability should confirm their calibration protocol for the humidity sensor with their accreditation body.

Temperature range option (A/B/C), power supply (220V/380V), interior volume, OEM logo/nameplate, extra shelves or communication protocol (RS232/RS485) available on request.

Compact Benchtop Design for Flexible Calibration

The THC Series combines precision environmental control with a compact structure, making it suitable for laboratories, calibration rooms, research facilities, and production inspection areas.

Available chamber capacities:

THC-50: 50L
THC-80: 80L

The small footprint allows users to perform temperature and humidity calibration without requiring large walk-in facilities.

Portable Temperature Humidity Calibration Chamber for Thermometers and Hygrometers

Parameter / Specification	THC-50	THC-80
Internal Dimension (mm)	320 × 350 × 450	400 × 400 × 500
Overall Dimension (mm)	800 × 1050 × 950	900 × 1100 × 1000
Interior Volume / Max Heat Load	50L / 1000W	80L / 1000W
Temperature Range	A: -20℃ ～ +150 ℃ B: -40℃ ～ +150 ℃ C: -70℃ ～ +150 ℃
Temp. Fluctuation / Deviation	± 0.5 ℃ / ± 2.0 ℃
Humidity Range / Deviation	20% ~ 98% RH / ± 2% RH
Heating / Cooling Rate	3 ℃ / min / 1 ℃ / min
Controller	Programmable color LCD touch screen (Ethernet, PC Link)
Cooling System	Mechanical compression (French TECUMSEH compressor, R404A/R23)
Sensors	PT100Ω Platinum Resistance (Accuracy 0.001℃) / Capacitive humidity sensor
Air Circulation	Centrifugal wind fan forced circulation
Chamber Material	Exterior: Coated steel plate / Interior: SUS304 stainless steel
Insulation & Sealing	Polyurethane foam & insulation cotton; Double-layer silicone sealing
Built-in Water Tank (mm)	150 × 350 × 180
View Window (mm)	120 × 150 (with interior lighting)
Standard Configuration	1 Cable hole (Φ 50mm) with plug; 2 shelves
Max Noise / Power Supply	≤65 dBA / 220V 50Hz or 380V 50Hz
Environmental Condition	5℃ ～ +35 ℃, ≤ 85% RH
Safety Devices	Humidifier dry-combustion, over-temp, over-current, refrigerant high-pressure, water shortage, and earth leakage protection

Structure, Control & Build Quality of Portable Temperature Humidity Calibration Chamber

Portable_Temperature_Humidity_Calibration_Chamber_for_Thermometers_and_Hygrometers.jpg

2 adjustable workroom shelves let you position multiple thermometers or hygrometers at different heights for side-by-side calibration

Portable_Temperature_Humidity_Calibration_Chamber_for_Thermometers_and_Hygrometers1.jpg

A Φ50mm sealed cable port keeps your data logger connected to the outside world without breaking the chamber's seal, and the lit viewing window lets you check on a running test without opening the door

Portable_Temperature_Humidity_Calibration_Chamber_for_Thermometers_and_Hygrometers2.jpg

Multi-segment programmable profiles let you set up ramp-and-soak cycles once and walk away, with Ethernet/PC Link for remote monitoring and pulling data curves from your desk

Portable_Temperature_Humidity_Calibration_Chamber_for_Thermometers_and_Hygrometers3.jpg

A stainless SUS304 workroom resists corrosion over years of repeated thermal cycling, and a French TECUMSEH compressor keeps cooling reliable and quiet enough for a working lab environment

Frequently Asked Questions

1. What is a portable temperature humidity calibration chamber used for?

A portable temperature humidity calibration chamber is used to create stable temperature and humidity conditions for calibrating thermometers, hygrometers, humidity sensors, and other environmental measuring instruments.

2. Can this chamber calibrate hygrometers and humidity sensors?

Yes. The THC Series provides controlled humidity environments from 20% to 98% RH with ±2% RH humidity deviation, making it suitable for hygrometer and humidity sensor verification.

3. What sensors are used in the temperature humidity calibration chamber?

The chamber uses a PT100 platinum resistance temperature sensor and a capacitive humidity sensor to achieve accurate temperature and humidity monitoring.

4. What is the difference between a calibration chamber and a temperature humidity test chamber?

A calibration chamber focuses on measurement accuracy, stability, and repeatability for instrument verification, while a temperature humidity test chamber is mainly used for product reliability and environmental stress testing.