What are digital thermometer heat production requirements?

In the production of digital thermometer needs to have some national standards need to be performed, according to the national standards for production, today small make up take you know heat under digital thermometer national standards. Digital thermometer heat production, according to the national standards should have the following requirements: 1, the appearance of the thermometer structure should be in good condition, the surface should not have obvious deformation, surface coating should be uniform, the metal parts should not have rust and other mechanical damage. 2, thermometer, name, type, temperature range, said international temperature scale & other; C & throughout; The symbols & other; ℃” , working conditions, and other Return to check & throughout; Mark, manufacturer, production date, serial number should be clear. 3, each part of the thermometer switch, key operation should be flexible, reliable and parts should be no loose fastening. 4, thermometer fuses must contact good of sensor and sensor outside casing shall be sealed straight, there should be no obvious bending phenomenon, its length should be not less than 150 mm. 5, the thermometer shows the value of the bottom represented by a number of temperature should not be greater than zero. 001 ' C。 When a digital thermometer display value change of the input value variation ( Converted to the corresponding temperature value) Should meet the requirements of the thermometer resolution thermometer should not be less than the error resolution 70, the thermometer, with a negative display shows zero when the resolution of error should be less than 140% of the thermometer resolution. 6, thermometer in volatility value should be within 30 minutes less than 0. 001`C。 7, thermometer verification results of two adjacent verification period, every two ` C temperature measurement error difference should be less than 0. 0041C。 Small make up knowledge of the thermometer is said here today, want to know more knowledge of thermometer, please pay attention to our website instrument.