loading

Gester Instruments | Professional Textile, Footwear and PPE  Testing  Equipments Manufacturers Since 1997


Products
Test Standard
Products
Test Standard

The cause of the constant temperature and humidity test chamber temperature difference

The structure of the constant temperature and humidity test chamber temperature among work very big harm level is well-balanced, because the structure is difficult to complete symmetry, which is bad for temperature well-balanced lead to harm. Common low temperature test chamber or constant temperature and humidity test chamber, Cold dampness aging test box) Structure. The gate in the former, central air conditioning room in the back, the wind on the next time the wind. Obvious symmetrical is good, this kind of structure can be easily done temperature symmetrical left and right, up, down, but the structure is completely different, around to work in the interior space temperature caused the asymmetrical. Even so, this kind of single duct structure such as the design scheme to solve properly, the practical experience of personal studio from 0. L ~ 300 m3, middle can be applied, the rules and regulations of the temperature error can consider. Make the box wall temperature is not symmetrical, and thus make the box wall radiation is not symmetrical, widely circulated hot harm symmetry temperature field. Because of the box wall heat conduction, heat leakage, High and low temperature test chamber) Leakage or cold ( Low temperature test chamber) Such as thermal damage, in order to compensate thermal damage is bound to appear exhaust temperature difference, high exhaust temperature of high temperature box over the operating temperature in box, exhaust temperature of the cryogenic tank is less than the operating temperature in box. Because there must be the exhaust temperature of errand work caused the temperature in the room is not symmetrical. Constant temperature and humidity test chamber work as much as possible, please don't open the door is environmental testing, open when high temperature will cause burns, for the actual operation staff to open when ultra-low temperature will meet the guy in result in cold, frozen, and will lead to air conditioning evaporator cooling effect. If must be open, please do a good job of the certain safety protection. Machinery and equipment before starting to query switch power supply is stable, wiring must be appropriate, must carry out the grounding device. No grounding device will cause accident getting an electric shock, incorrect posture safety accident and abnormal display information or accurate measurement has great deviation. In order to prevent the constant temperature and humidity test chamber to produce equipment common faults, please show me the rated current realm of switching power supply; Regular maintenance terminal screws and fixed bracket, please don't loose under the condition of the application. We should often check the constant temperature and humidity test chamber motor there is no dirt and electric conductivity, electromagnetic coils have been destroyed, the motor rotor and stator have friction, or after the motor starter motor burn down. Heater in the water to be moved around once a month, to ensure the cleaning of water, heating water dish should be clean once every month, guarantee the smooth water. Cooler should be on time every month maintenance, using wireless vacuum cleaner will be cooler heat wire adhesion of dust gettering online or use high pressure gas injection in addition to the dust. The interpretation of the above is the cause of the constant temperature and humidity test chamber temperature difference, the hope can help you, if you want to learn more about information of constant temperature and humidity test chamber, welcome to the online consulting service or call the company service hotline ( Website top right corner) For consultation, we will wholeheartedly provide high quality service for you! Tags: & nbsp  constant temperature and humidity test chamber

are present in just about every facet of modern life.

Review GESTER International Co.,Limited's progress at regular intervals, so we can continue with the strategies that work well and change or eliminate the ones that don't give the results we are looking for.

tensile tester manufacturers problems are nothing new, almost every one of us have to go through them at some point of our lives and some of us never get rid of them. with the development of tensile tester manufacturers technology, now provides a perfect cure for that.

GESTER International Co.,Limited have found that nurturing relationships with clients by welcoming them to our factory can be valuable to all parties.

GET IN TOUCH WITH Us
recommended articles
How to Know the Fabric Shrinkage Test for Your Projects
Master fabric shrinkage testing with this definitive guide. Understand causes of shrinkage, industry standards (ISO, GB, AATCC), step-by-step testing methods using Wascator equipment, and strategies to minimize shrinkage for superior garment quality and customer satisfaction.
Strengthening Safety Standards: The Role of a PPE Testing Equipment Supplier at A+A
The A+A Trade Fair in Düsseldorf (2026) highlights tightening global PPE safety regulations, shifting the industry from basic compliance to comprehensive performance verification. As international standards (ISO, EN, ASTM) become more granular, professional PPE testing equipment suppliers like GESTER play a pivotal role in bridging theoretical standards and practical implementation. GESTER’s high-precision, multi-standard testing tools (covering cut resistance, thermal protection, liquid penetration, etc.), backed by ISO 9001 certification and partnerships with SGS/TUV, ensure data traceability, reliability, and compliance. With 20+ years of expertise, modular innovation, and holistic service (calibration, training), the supplier supports manufacturers and laboratories in meeting stringent safety benchmarks, enabling global market entry and safeguarding worker lives. Strategic procurement of such future-ready equipment is key to long-term occupational safety success.
GESTER: China Top PPE Testing Equipment Company Leading Global Safety Standards
Since 1997, GESTER International Co., Ltd has emerged as China’s top PPE testing equipment company, with 25+ years of R&D experience in high-precision testing instruments. Serving clients in over 160 countries and partnering with global leaders like SGS, Intertek, and TUV, GESTER aligns its products with international standards (ISO, ASTM, EN, GB) to ensure reliable PPE performance. Highlighted by the GT-RC02B TPP Thermal Protection Tester—capable of simulating extreme thermal environments and calculating critical safety metrics like TPP values and escape time—and the GT-KC28 TDM Cut Test Machine, GESTER’s portfolio covers thermal protection, cut resistance, footwear testing, and more. The company offers comprehensive support, including ISO 17025/NFPA-aligned calibration, on-site installation, and staff training, empowering PPE manufacturers and testing laboratories to meet stringent global regulations, prevent workplace injuries, and accelerate market access. As a leader in global safety standards, GESTER combines technical precision, user-centric design, and lifecycle service to deliver tailored solutions for high-risk industries worldwide. Visit https://www.gesterinstruments.com/ for full product details.
How to Choose the Right Safety Shoes Testing Equipment Supplier?
Safety shoes are essential personal protective equipment (PPE) in high-risk industries. To ensure compliance with international standards such as EN ISO 20345 and ASTM F2413, professional testing equipment is required. This article explains common safety shoes test items, corresponding testing machines, and how to choose a reliable safety shoes testing machine supplier. It also analyzes key factors such as technical capability, standard compliance, equipment stability, and cost performance to help enterprises build a strong quality control system and enhance global competitiveness.
What are The Flame Retardant Test Methods ?
Flame retardant testing evaluates materials' ability to resist ignition and slow fire spread. This guide covers key textile test methods (45°, horizontal, vertical), standards (ASTM, ISO, BS), and equipment like flammability testers for upholstery, carpets, and fabrics.
Universal Testing Machine Dual Column GT-K01: A Reliable Solution for footwear Testing
The Universal Testing Machine Dual Column GT-K01 is a high-precision mechanical testing instrument widely used in the footwear industry to evaluate tensile, compression, bending, tearing, and bonding strength of various materials. With advanced servo control, high-accuracy displacement measurement, and compliance with multiple international testing standards such as SATRA, ASTM, ISO, and BS, the GT-K01 footwear universal testing machine provides reliable data for quality control, material research, and product certification. This article explores the working capabilities, structural features, and practical value of the GT-K01 universal testing machine in footwear testing and manufacturing processes.
A Complete Guide to Martindale Testing by the Best Martindale Abrasion Tester Supplier
Durability is critical for textiles and footwear, and Martindale testing is the gold standard for measuring abrasion resistance and pilling performance. This guide dives into Martindale testing’s core mechanics (Lissajous figure multi-directional friction), strategies to boost testing accuracy (sample clamping, load calibration, abrasive standardization), and compliance with international standards (ISO 12947, ASTM D4966, EN). As a top Martindale abrasion tester supplier with 25+ years of expertise, GESTER International delivers high-precision instruments (Martindale Abrasion Tester GT-C13B, etc.) certified to ISO 9001 and trusted by SGS, Bureau Veritas, and other global testing institutes. Beyond machinery, GESTER offers global technical support, on-site installation, and calibration services. The guide also includes a procurement framework to help labs select tailored Martindale testing solutions. For reliable, standard-compliant durability testing, GESTER is your trusted partner.
Four Color Fastness Test Method for Laboratory Drying Oven
GESTER’s laboratory drying oven is designed for textile color fastness testing, including perspiration, seawater, water, and saliva resistance. Compliant with ISO, AATCC, GB, and JIS standards, it ensures precise heating and drying for accurate test results. Learn the step-by-step four color fastness test method and its applications.
Heat Contact Machine GT-C101-The Ultimate Selection Guide

The Heat Contact Machine GT-C101 is a specialized testing instrument designed for evaluating the heat resistance and thermal protective performance of gloves, protective clothing, and other heat-resistant materials used in high-temperature environments. In industries such as smelting, casting, welding, and glass manufacturing, workers are frequently exposed to intense heat, making accurate testing of contact heat resistance essential for ensuring safety and compliance.

GT-C101 simulates real working conditions by measuring heat transfer delay and thermal transmission under instant contact with high-temperature surfaces. Fully compliant with EN 407, EN 702, and ISO 12127-1 standards, this machine provides precise, repeatable data for manufacturers, laboratories, and research institutions. With high-temperature capability up to 500°C, advanced calorimetry, digital monitoring, and adjustable contact speed, the Heat Contact Machine GT-C101 is an indispensable tool for developing and certifying next-generation PPE and heat-insulation materials.
Leather Industry Innovations: GESTER at ACLE as a Footwear Testing Equipment Factory
The global leather and footwear industry is shifting toward prioritizing durability, material integrity, and functional excellence—driving demand for high-precision testing equipment. As a highlight of ACLE 2026 (All China Leather Exhibition), GESTER International Co., Ltd., a 25+ year footwear testing equipment factory, showcases innovative solutions tailored to this trend. Trusted by leading testing institutes like SGS, TUV, and Intertek, GESTER’s product lineup includes the Martindale Abrasion Tester (for surface durability), Tension Testing Machine (for mechanical properties), and Safety Shoe Cutting Tester—all compliant with ISO, ASTM, and EN standards. These instruments integrate automation (PLC systems) and data traceability to reduce human error, support ISO 9001 compliance, and streamline laboratory efficiency. With a global service network spanning 160+ countries, GESTER offers on-site installation, calibration, and software updates to ensure long-term usability. The article also outlines strategic procurement tips for manufacturers, emphasizing modular design, standard compatibility, and supplier track records. For leather and footwear brands seeking to enhance product reliability, avoid recalls, and stay competitive, GESTER’s ACLE 2026 innovations and end-to-end support provide a definitive quality assurance solution.
no data
QUANZHOU GESTER INTERNATIONAL CO.,LTD gains certificates of ISO 9001, 3A and SGS Audited supplier etc. with advanced design concept, excellent manufacturing technology and strict quality control.
WeChat

Contact us
Tel: +86-595-28886108 
Fax: +86-595-22515221
E-mail: sales10@gester-instruments.com,
                 info@gester-instruments.com
Mobile/Whatapp/ Wechat:  
             + 86 018059983973
Address:  Block 402,4th floor, f buliding, shengfulan business Center, no.577 jitai road, economic and  Technological development zone quanzhou of fujian.China.
Customer service
detect