Constant Temperature Humidity Chamber

The Constant Temperature and Humidity Weighing System is designed for precision mass testing in highly controlled environments. It enables continuous or alternating weighing operations under regulated temperature and humidity conditions, eliminating environmental fluctuations to ensure accurate and stable mass data across research, manufacturing, and inspection applications.

Key Specifications

Temperature Range: Configurable per model and test requirements.
Chamber Volume: Multiple sizes for different samples and capacities.
Controller: User-friendly system for stable and precise operation.
Power Supply: Standard or customized to local electrical standards.

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Product Details
Technical Specifications
Key Advantages
Applications
FAQs

Product Details

Test Port

Control Panel

Sealing Structure (Dual O-Rings)

Internal View

Technical Specifications

Model		HFWE-CZXT
Inner Chamber Size D×W×H		600×750×500
Overall Dimension D×W×H		850×1260×1560
Performance Index	Temperature Range	15℃～30℃ (Factory default setting: 25℃±1℃)
	Humidity Range	Relative Humidity 50±5%RH
	Temperature Fluctuation After Balance	±5%RH
	Temperature Control Precision	±1℃
	Mettler Toledo Balance	1/100000, 1/1000000 (Optional)
Temperature & Humidity Operation Control System	Controller	Imported microcomputer touch screen integrated temperature & humidity controller
	Precision Range	Temp ±0.1℃, Humidity ±0.1%RH
	Temperature & Humidity Sensor	Platinum Resistance PT100 Ω/MV
	Heating System	Independent system, nickel-chromium alloy electric heater
	Humidifying System	External isolated fully stainless steel surface evaporative humidifier
	Dehumidifying System	Evaporator coil dew point temperature laminar contact dehumidification mode
	Water Supply System	Automatic humidification water supply, recyclable residual water, water & energy saving
	Refrigeration System	Full closed single-stage compression refrigeration, original French "Tecumseh" compressor
	Circulation System	Low-temperature resistant low-noise air conditioning motor, multi-blade centrifugal wind wheel
Construction Materials	Outer Cabinet Material	Galvanized steel plate with plastic spraying treatment
	Inner Chamber Material	SUS304 stainless steel plate
	Thermal Insulation Material	Polyurethane rigid foam / superfine glass fiber cotton
Standard Configuration		1 set of lighting lamp, sample rack, 1 test cable hole (50, 100mm)
Safety Protection		Leakage, short circuit, over temperature, water shortage, motor overheat, compressor overpressure, overload & overcurrent protection / controller power-off memory
Power Supply Requirement		380V±10%; 50Hz; Three-phase four-wire + ground wire
Power Supply Requirement		Internal Power Socket: 220V 50Hz
Operating Environment		5℃～+28℃ ≤85%RH

Applicable Standards: HJ836-2017, GB18352.3-2005, GB18352.5-2013, GB18352.6-2016 Limits and measurement methods for emissions from light-duty vehicles, GB17691-2005 Limits and measurement methods for exhaust pollutants from compression ignition (C.I.) engines and gas fuelled positive ignition (P.I.) engines of vehicles

Notes: 1. All data measured under ambient temperature (RT) 25℃ and no-load condition of inner chamber.

Product Features

Stable Performance
The equipment is designed for dependable operation and repeatable testing performance.
Accurate Temperature / Humidity Control
The control system helps maintain stable testing conditions for more accurate verification.
Durable Structure
The chamber structure is designed for long-term use in laboratory and industrial environments.
Easy Operation
User-friendly control and accessible design make daily operation and maintenance easier.

Configuration Options

Standard Configuration

Standard Controller:
Standard configuration includes a practical controller for daily testing operation.
Standard Observation Window:
Observation window is available on selected models for convenient monitoring.
Standard Test Port:
Test port can be included for cable routing or sample monitoring when required.

Optional Configuration

Data Logger:
Optional data logging is available for test data recording and management.
Communication Port:
The USB communication interfaces facilitate data transmission or remote connection.

Applications

Electronics & ElectricalSuitable for performance and reliability testing of electronic and electrical products.

Metal & Surface TreatmentApplicable to corrosion resistance, durability, or aging evaluation of metal parts and coatings.

AutomotiveUsed for environmental durability and quality verification of automotive components.

Plastics & RubberHelps evaluate the stability and environmental resistance of plastic and rubber materials.

Laboratory TestingWidely used in laboratories for research validation, quality control, and test development.

FAQs- Constant Temperature Humidity Chamber

Is this chamber used for weighing?

Yes. It contains a high-precision balance specifically designed for the precise weighing and constant-weight determination of samples such as filter membranes and exhaust particulates.

Why is the weighing performed inside a constant temperature and humidity chamber?

Fluctuations in laboratory temperature and humidity can cause samples to absorb or lose moisture, thereby affecting their weight. This chamber eliminates environmental interference to ensure absolute accuracy in the weighing results.

How are samples placed inside?

The chamber features a transparent viewing window and dedicated ports equipped with silicone gloves; the operator inserts their hands through these ports to perform tasks without disrupting the internal temperature and humidity environment.

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