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袖珍数字温度计具有体积小、重量轻、显示直观且冷端可自动补偿等优点,从而简化了测温步骤,但应注意现场的使用方法。 1.数字式温度计与配用标准热电偶、补偿导线分度号要一致,校表时与配用表分度号也要一致; 2.进行在线测量时,应把数字温度计用补偿导线接在仪表与热电偶补偿导线的连接处,校对在用表(电子电位差计或动圈式温度指示表)的误差; 3.配上毫伏发生器用比较法对在用表进行各点温度校对; 4.数字温度计要远离高温炉,使该温度计本身不超过45℃;
Pocket digital thermometer with small size, light weight, intuitive display and cold end can automatically compensate for the advantages of simplifying the temperature measurement steps, but should pay attention to the use of the scene. 1. Digital thermometer and equipped with standard thermocouple, compensation wire index number should be consistent, with the table calibration table with sub-degree number should be consistent; 2. For online measurement, the digital thermometer should be connected with the compensation wire Instrument and thermocouple wire compensation connection, proofreading in the table (electronic potentiometer or moving coil temperature indicator) of the error; 3. With the millivolt generator used in comparison with the table at the temperature calibration point; 4 digital thermometer away from the high temperature furnace, the thermometer itself does not exceed 45 ℃;