TH-100/ TH-225/TH-500/TH-800/TH-1000
LIB Industry
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LIB Precise Temperature Humidity Calibration Chamber is available in chamber capacities from 100 L to 1000 L, allowing calibration of single probes, multi-sensor assemblies, and batch testing applications. The chamber incorporates a high-efficiency refrigeration system, precision humidification technology, and uniform airflow circulation to ensure consistent environmental conditions throughout the workspace. A 7-inch programmable touchscreen controller supports up to 120 programs with 100 steps each, enabling automated calibration sequences and long-duration stability verification tests. The SUS304 stainless steel interior provides corrosion resistance and easy cleaning, while the robust coated steel exterior ensures long-term durability in demanding laboratory environments.
Working Principle of the Precise Temperature Humidity Calibration Chamber for Hygrometer Probe
1. High-Precision Temperature and Humidity Calibration Environment: The equipment generates stable temperature and humidity conditions required for instrument calibration. Advanced PID algorithms continuously adjust heating, cooling, humidification, and dehumidification systems to maintain precise environmental setpoints. This enables accurate comparison between reference standards and instruments under calibration.
2. Wide Calibration Range for Various Instruments: Temperature ranges from –20°C, –40°C, or –70°C up to +150°C allow calibration under extreme environmental conditions. Humidity control from 20% RH to 98% RH supports low-humidity, standard laboratory humidity, and high-humidity verification applications. The equipment accommodates hygrometer probes, humidity transmitters, environmental sensors, and monitoring devices used across multiple industries.
3. Excellent Stability and Uniformity: PT100 Class A sensors with high measurement resolution continuously monitor chamber conditions. Temperature fluctuation is controlled within ±0.5°C, temperature deviation within ±2.0°C, and humidity deviation within ±2.5% RH. A centrifugal airflow system distributes conditioned air evenly, minimizing environmental differences inside the chamber and improving calibration consistency.
4. Intelligent Calibration Programming: The 7-inch touchscreen controller allows users to create complex calibration profiles with multiple temperature and humidity points. Automatic transitions between calibration stages reduce operator intervention and improve efficiency. Real-time monitoring, historical data recording, alarm functions, and Ethernet communication support modern laboratory management requirements.
5. Water-Saving Humidity Control System: An intelligent water circulation system reduces water consumption while maintaining stable humidity generation. The system continuously recycles and optimizes water usage during long-term calibration procedures, helping laboratories lower operating costs without affecting calibration accuracy.
6. Durable Construction and Safety Protection: The chamber interior is manufactured from SUS304 stainless steel, providing excellent resistance to corrosion and moisture exposure. The reinforced steel exterior ensures structural durability for continuous laboratory operation. Multiple safety protections, including over-temperature protection, overload protection, leakage protection, water shortage alarms, and compressor safeguards, ensure reliable operation and protection of valuable calibration instruments.
Core Parameters of the Precise Temperature Humidity Calibration Chamber for Hygrometer Probe
Model | TH-100 | TH-225 | TH-500 | TH-800 | TH-1000 |
Internal Dimension (mm) | 400×500×500 | 500×600×750 | 700×800×900 | 800×1000×1000 | 1000×1000×1000 |
Overall Dimension (mm) | 900×1050×1620 | 1000×1140×1870 | 1200×1340×2020 | 1300×1540×2120 | 1500×1540×2140 |
Interior Volume | 100 L | 225 L | 500 L | 800 L | 1000 L |
Heat Load | 1000 W | ||||
Temperature Range | A: –20°C to +150°C / B: –40°C to +150°C / C: –70°C to +150°C | ||||
Temperature Fluctuation | ±0.5°C | ||||
Temperature Deviation | ±2.0°C | ||||
Humidity Range | 20% RH ~ 98% RH | ||||
Humidity Deviation | ±2.5% RH | ||||
Cooling Rate | 1°C/min | ||||
Heating Rate | 3°C/min | ||||
Temperature Sensor | PT100 Class A Platinum Resistance Sensor | ||||
Calibration Application | Hygrometer Probes, Humidity Sensors, Temperature Transmitters, Environmental Monitoring Devices, Data Loggers | ||||
Cooling System | Mechanical Compression Refrigeration System | ||||
Refrigeration Unit | French TECUMSEH Compressor | ||||
Heating Element | Nichrome Heater | ||||
Humidifier | External Isolation Stainless Steel Surface Evaporation Humidifier | ||||
Controller | 7-inch Programmable Color LCD Touchscreen Controller, Ethernet Communication | ||||
Programming Capacity | 120 Programs, 100 Steps per Program | ||||
Water Supply System | Automatic Water Supply with Water Purification System | ||||
Air Circulation System | Centrifugal Fan Forced Airflow System | ||||
Interior Material | SUS304 Stainless Steel | ||||
Exterior Material | Steel Plate with Protective Coating | ||||
Thermal Insulation | Polyurethane Foam and Insulation Cotton | ||||
Observation Window | Interior Lighting, Double-Layer Thermo-Stable Silicone Rubber Sealing | ||||
Standard Configuration | 1 Cable Port with Plug, 2 Adjustable Shelves | ||||
Safety Protection | Over-Temperature Protection, Over-Current Protection, Refrigerant High-Pressure Protection, Water Shortage Protection, Humidifier Dry-Burn Protection, Leakage Protection | ||||
Communication Interface | Ethernet (Standard), Remote Monitoring Available | ||||
Calibration Standards Supported | ISO/IEC 17025, IEC 60068 Series, ASTM E104, JJF 1076, GB/T 2423 Series | ||||
Typical Calibration Points | 23°C/50% RH, 25°C/60% RH, 40°C/75% RH, 60°C/90% RH, 85°C/85% RH | ||||
Typical calibration and Calibration Standards
The Precise Temperature Humidity Calibration Chamber is widely used in calibration laboratories, metrology institutes, environmental monitoring agencies, aerospace facilities, automotive electronics manufacturers, pharmaceutical companies, research institutions, and sensor production plants. It supports calibration and verification activities according to IEC 17025, ISO 17025, IEC 60068, JJF 1076, ASTM E104, GB/T 2423 series, and various national metrology standards. Typical calibration procedures include verification of hygrometer probes at 23°C and 50% RH, environmental monitoring sensors at 25°C and 60% RH, industrial humidity transmitters at 40°C and 75% RH, high-humidity validation at 60°C and 90% RH, and low-humidity calibration at 20% RH. Long-term stability tests are often conducted at 25°C/50% RH for 24 to 168 hours, while environmental qualification testing may involve temperature points such as –20°C, 0°C, 25°C, 85°C, and 120°C. These calibration conditions help ensure traceable measurement accuracy, instrument reliability, and compliance with international quality requirements.
Video of the Precise Temperature Humidity Calibration Chamber for Hygrometer Probe
FAQs on the Precise Temperature Humidity Calibration Chamber for Hygrometer Probe
Q1: How many hygrometer probes can be calibrated simultaneously?
The quantity depends on chamber size and fixture configuration. LIB provides customized probe holders and calibration racks that allow multiple hygrometer probes, humidity sensors, and data loggers to be calibrated simultaneously while maintaining uniform environmental conditions.
Q2: Can the chamber be customized for lower humidity or higher calibration accuracy?
Yes. LIB can customize humidity ranges, temperature ranges, chamber dimensions, airflow systems, and calibration configurations according to specific laboratory requirements. Special accuracy and stability enhancements are also available for metrology-grade applications.
Q3: Does the chamber support data recording and remote monitoring?
Yes. The controller supports real-time data logging, historical record storage, Ethernet communication, remote monitoring, alarm notification, and export of calibration records. This helps laboratories simplify documentation, improve traceability, and meet ISO/IEC 17025 quality management requirements.
