High-Low Temperature Test Chamber LTTC-T2018

Introduction

High-Low Temperature Test Chamber offers a wide temperature range from –40℃ to +150℃. It features a circuit design that allows for quick troubleshooting and easy maintenance. It includes multiple safety protection devices to help reduce failure rates and ensure long-term reliability. The door frame is equipped with advanced an anti-condensation electric heating device for improved thermal performance. Our chamber is ideal for railway and metro components, E-bike parts, and textile and smart fabric testing.

This test equipment is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Our chamber is ideal for testing railway and metro components, E-bike parts, textile materials, and smart fabrics under extreme temperatures, ensuring durability, performance, and safety in demanding environmental conditions.

Specifications

Capacity	408 L
Temperature Range	- 40 ℃ to + 150 ℃ (Optional + 180 ℃)
Temperature Uniformity	Less than or equal to 2.0 °C
Temperature Fluctuation	± 0.5 ℃
Heating Rate	- 40 ℃ to + 100 ℃ (3 ℃/min)
Cooling Rate	+ 20 ℃ to – 40 ℃ (3 ℃/min)
Operating Ambient Temperature	5 °C to 35 °C
Floor Space	1.6 m²
Controller	7-inch touch screen controller
Communication Interface	, /485, and
Refrigeration System	Hermetic compressor, single stage or cascade refrigeration system
Interior Chamber Material	SUS304 stainless-steel plate
Exterior Chamber Material	High quality cold rolled steel plate, surface electrostatic powder coating
Insulation Material	Rigid polyurethane foam insulation layer, flame retardant grade B2
Power Consumption	6 KW
Power supply	AC 380V ±10% 50Hz / AC 220V ±10% 50Hz
Internal Dimensions	700 × 750 × 800 mm
External Dimensions	900 × 1715 × 1790 mm
Package Dimensions	1140 × 2240 × 2150 mm
Net Weight	872 Kg
Gross Weight	972 Kg

Features

High Load Capacity Shelves

Thermal Shock Protection

Color with Graphical Display

Low Vibration Design

Air Intake and Exhaust Control

FAQs

1. What is the temperature range of the High-Low Temperature Test Chamber , and how is it achieved technically?

The High-Low Temperature Test Chamber typically offers a wide temperature range from –70°C to +180°C, allowing for comprehensive thermal testing. This is achieved using a combination of high-efficiency mechanical refrigeration and electrical heating systems. The cooling unit uses environmentally friendly refrigerants and cascade or multi-stage compression for deep cooling. For heating, it employs fast-response tubular heaters made from corrosion-resistant materials. A smart controller constantly adjusts the operation of both systems for precise control. Safety interlocks and limiters ensure that temperature extremes do not damage the chamber or the samples. This wide range enables simulation of various global climatic conditions for product qualification.

2. What is the typical temperature recovery time after door opening in the High-Low Temperature Test Chamber ?

The recovery time refers to how fast the chamber returns to its set temperature after the door is opened. For the High-Low Temperature Test Chamber , temperature recovery usually occurs within 5 to 10 minutes, depending on the test setpoint and internal load. This is made possible by powerful compressors and quick-response heating elements. Sensors immediately detect the drop or rise in temperature and trigger a fast system response. The chamber’s insulation and internal design also help retain most of the thermal energy during brief openings. Quick recovery ensures that the test integrity is not compromised. It's especially crucial for tests requiring uninterrupted thermal profiles.

3. How does the High-Low Temperature Test Chamber protect sensitive components during extreme testing cycles?

The High-Low Temperature Test Chamber is equipped with safety features like over-temperature protection, current overload breakers, and pressure relief valves. It includes programmable limits to prevent the chamber from exceeding preset temperature thresholds. During rapid cycling, the internal fans distribute air evenly to prevent hotspots that could damage sensitive devices. The system allows gradual ramp rates to reduce thermal stress when required. Test samples can be placed in specially designed carriers or trays to prevent vibration or shock. The chamber is internally lined with corrosion-resistant stainless steel to handle condensation or moisture. These features work together to safeguard both the test samples and chamber integrity.

4. What factors influence temperature uniformity inside the High-Low Temperature Test Chamber ?

Uniformity depends on airflow design, sensor placement, insulation quality, and internal load configuration. The chamber uses powerful circulation fans and directional airflow channels to ensure even heat distribution. Any blockage or improper arrangement of test items can disrupt the airflow and reduce uniformity. High-quality sensors placed at multiple points help monitor and correct for discrepancies. Insulation and door sealing reduce thermal gradients caused by external temperature interference. The design of the internal chamber space is optimized to minimize temperature stratification. Regular calibration and maintenance are also essential to sustain optimal performance.

5. How noisy is the High-Low Temperature Test Chamber during operation, and how is noise managed?

Noise levels typically range from 60–75 dB(A), depending on compressor size and fan speed. The noise is primarily generated by refrigeration compressors, circulation fans, and control relays. The chamber’s structure includes vibration-damping mounts and acoustic insulation panels to reduce mechanical noise. Fans are designed to balance performance with quiet operation. Noise levels may increase during startup or rapid cycling phases. Proper installation in a semi-isolated area or use of soundproof partitions can reduce workplace disruption.