2) The temperature deviation not only reflects the positional error of the temperature of each point of the workspace, but also includes the variation of the temperature of each point with time, that is, the temperature fluctuation. Therefore, the temperature deviation can better explain the temperature uniformity in the box. Generally, it is unnecessary to measure the temperature uniformity and temperature fluctuation of the test box. Only when some test equipment has special requirements for temperature fluctuation, such as for the damp heat box, the temperature fluctuation is marked. Because the humidity tank temperature fluctuations exceed ± 0.5 °C, it will bring greater humidity fluctuations, increase the humidity error, so as to exceed the humidity tolerance.
GB/T5170.2-1996, in the verification method of temperature test equipment, only the temperature deviation is specified for the temperature performance index, and no verification is required for the temperature uniformity. Only the temperature fluctuation and temperature are indicated in Appendix B. Degree of verification method, such a rule is very correct.
3) The temperature uniformity index, which represents the difference between the average value of the temperature at each point and the average temperature at the center point, has a sign, and only the temperature uniformity of the national standard is compared with the center point or compared with the nominal temperature. Therefore, there is no sign, so there is no clear and accurate representation of the temperature deviation.
4) At present, some domestic environmental testing equipment product standards still require three indicators of temperature fluctuation, temperature uniformity and temperature deviation, obviously not necessary. It is recommended that the temperature deviation index be used when these standards are revised, and that adding up to one temperature fluctuation index is very comprehensive. Moreover, the use of temperature deviation in line with the US military standard, the national military standard, and the relevant standards of the International Electrotechnical Commission requirements.
Quantum has expanded its Belt Conveyor offering to include a range of economical Modular Belt Conveyors.
Our Modular Belt Conveyor are designed in fixed section lengths and belt widths to reduce delivery lead times, installation times with spare parts inventory and reduce your Total Cost of Ownership. Quantum Modular Conveyors are manufactured in line with the outstanding quality of our custom built conveyors that our clients have come to expect.
Standard modules are in 3m sections, with a shorter, custom module to ensure the conveyor suits your plant layout. Head and tail sections are designed to cover a wide range of throughputs for each belt size. They can be used in horizontal and inclined applications – support legs can be positioned as required. All conveyors can include covers.
A typical application is for narrow belt width, fully enclosed modular sample and dust return conveyors. All of our conveyors can be designed for Modularization and our Standard belt widths include 350mm, 450mm and 750mm.
Roller Belt Conveyor,Modular Belt Conveyor,Overland Belt Conveyor,Tripper Belt Conveyor
Quantum Conveying Systems Yangzhou Co.,Ltd. , https://www.fkconveyor.com