The thermostat test background knowledge
to maintain the temperature of the casing on PC sent set temperature, the change of body temperature is not affected by the influence of the temperature controller output signal. Usually Soak stage is just a formal test preparation stage, in order to adjust the test equipment and samples. The casing temperature changes in a certain slope ( 周期)
according to the temperature controller output control signal, A group or several groups of switch quantity) , superior to determine the current temperature should be increased or reduced in the box body, accordingly to constantly modify the set temperature, making the casing temperature according to certain slope increase or decrease over time. Mainly in order to get the tests CPH value, locus of control some important parameters such as temperature and temperature range. The casing temperature according to certain fixed slope ( DrifI)
temperature control box according to the fixed in the PC sends up or down the slope, the change of body temperature is not affected by the influence of the temperature controller output signal. The test is mainly in order to get the temperature offset value. Zero load ( 无载)
the front three test environment all need to output terminal connected to the virtual load of the hvac thermostat. Zero load test is refers to under the condition of not meet load resistance Drift experiments.
motor operated valve are all following the most compatible manufacturing regulations.
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The major classifications of are ac compressor control valve, hvac expansion valve, ac compressor control valve and hvac expansion valve machines.
Among improvements to thermostats, nearly half of consumers considered quality and service as the most important change a business could make in its supply chain.