Contact Heat Transmission Test
Compliance
ISO 12127-1, EN 702
The Contact Heat Transmission Tester, in accordance with ISO 12172-1, is designed to measure the contact heat transmission between the high temperature cylinder and the calorimeter with protective clothing in between.
It is used to evaluate the performance of protective clothing, hand protectors, or its constituent materials against high contact temperatures (500 degrees).
During the contact heat transmission test, the heating cylinder is heated up to 500 degrees, and the specimen is placed on the calorimeter. The specimen is lifted up at a constant speed and contacts the heating cylinder with a constant force of 49N. The temperature and time are measured, and the specimen will be auto low down after the temperature of the calorimeter rises 10 degrees. The threshold time is defined as the time spent when the temperature of the calorimeter is 10 degrees above its starting time.
Features
The Contact Heat Transmission Tester consists of test bench, heating cylinder, calorimeter, control system, temperature measurement system.
The heating cylinder is made from heat resist metal, can be heated up to 500 degrees, and is with a contact surface of φ 25.2mm.
The temperature control of heating cylinder is automatic with a resolution of 0.1 degrees.
The heating cylinder equips with a weight block to provide a precise contact force of 49N.
The heating cylinder can be slided horizontally within the test bench for specimen easy load and easy removal.
The heating cylinder is with a safety cover to prevent operator burns.
The calorimeter surface is φ 25mm and 5mm thick black anodized pure aluminum cylinder, which complies with ISO 12127-1 requirements.
The calorimeter temperature measurement resolution is up to 0.1 degrees.
The Motorized drive lifting device can lift the specimen as per the procedure automatically. Contact speed is 5.0 mm/s.
The Contact Heat Transmission Tester is controlled by the programmable logic controller, with HMI for operation control and test results export.
The test is automatic, and the test results include starting temperature, ending temperature, real-time temperature, threshold time, etc.