Protective Gloves Convection Cold Test Machine

TESTech Instrument (Suzhou) Technologies is one of the leading manufacturers and suppliers of protective gloves convection cold test machine in China. Welcome to wholesale premium test equipment at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.

The TESTech protective gloves convection cold test machine is designed and manufactured according to GBT 38304 for hand protection cold-weather gloves. It is used to test the convective thermal resistance of gloves under a specified temperature difference.

The equipment is mainly used to evaluate the ability of gloves to resist hand heat loss and to simulate the protection performance of gloves against low-temperature injury in cold environments.

• The test apparatus consists of a hand model, test chamber, and control system.
• Independent integrated design with attractive appearance and convenient operation.
• Test chamber made of stainless steel for corrosion resistance and good appearance.
• Testing device made of stainless steel for corrosion resistance.
• Large observation window for monitoring the test specimen.
• Internal chamber dimensions not less than 300 x 400 x 600 mm.
• Hand model overall length 364 mm, arm length 191 mm, hand length 173 mm.
• Equipped with universal casters for free movement.

• Hand model heating power not less than 200 W/m2.
• Hand model heater made of resistance wire with heat output range 0 to 200 W/m2.
• Equipped with DC regulated power supply with voltage fluctuation not exceeding ±1 percent.
• PID temperature controller automatically controls hand model temperature within 30-35 C.
• Power display meter automatically monitors hand model heating power.

• Composed of water tank, temperature control system, humidity control system, temperature sensor, and humidity sensor.
• Water tank stores purified water to provide humidity source for the chamber.
• Temperature control system automatically controls internal chamber temperature in the range of 0-30 C with deviation less than ±1 percent.
• Humidity sensor accuracy is ±3 percent.

• Composed of fan, air duct, frequency converter, and anemometer.
• Air duct made of stainless steel for corrosion resistance.
• Frequency converter automatically controls chamber air velocity at 4 ±0.5 m/s.
• Anemometer measures air velocity inside the chamber.

• Consists of temperature sensors, PLC acquisition module, and computer software.
• PT100 platinum resistance temperature sensors, with 3 sensors configured.
• Integrated PLC acquisition module with acquisition accuracy 0.1 C and acquisition cycle 0.1 s.
• Labview software continuously records and displays real-time temperature curves and can save temperature data.

• PLC plus computer control system for intelligent testing, automatic recording, and automatic storage of test data.
• Upper computer communicates with PLC through RS485 for data transfer and motion control.
• Automatic heating hand model system links PID temperature control module and power adjustment module for hand model temperature regulation.
• Constant temperature and humidity system automatically controls chamber temperature and humidity to provide standard airflow conditions.
• Air velocity control system uses programmable logic control and signal processing to regulate preset air speed intelligently.
• Temperature control module communicates with the PLC for real-time temperature acquisition, processing, and calculation.
• Labview software displays instrument status, collects test data, calculates results, shows results according to the standard, and averages multiple tests.
• Software continuously records and displays real-time temperature curves and automatically stores or prints tables and curves.
• Software provides database query functions by sample number and test date.
• Test time can be freely set in software.
• Software can automatically generate and print test reports, and stored data and reports can be queried freely.

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