| 摘要 |
PURPOSE:To section the quantity of variation in temperature by ranges and annunciate it with a sound, light, etc., by providing a temp. measurement part, storage part, display part, subtraction part which outputs differential data between two measured temperature data, level range judgement part, annunciation part, etc. CONSTITUTION:When the current temperature measurement value is obtained through the 1st temperature measuring operation of a temperature measurement part 11, the level range judgement part 26 receives the differential value of temperature through a subtracter 25 with a signal from a control part 10 to raise the level of a signal Q4 indicating a switch closure state to H, which indicates a switch open state. An alarm signal generation part 27 receives and decodes the signal Q4 indicating the switch open state to an alarm signal consisting of nine pulses. Then, the new current temperature measurement value is outputted from the temperature measurement part 11 to hold the switch open until the control signal 10 outputs a signal, and the alarm signal consisting of nine pulses is outputted is outputted once at every half period of the output of a counter 9 during said period. Consequently, it is known whether the measurement result changes or not without monitoring the displayed measurement result. |
