| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that the conventional analog recorder sometimes does not correctly give an alarm because the state of the preceding channel is inherited in a dead zone area when channels are changed.SOLUTION: A recorder capable of receiving an input from a plurality of input channels has: a recording part for performing recording on recording paper; recording paper carrying means for carrying the recording paper; a dial plate; a needle sliding along the dial plate; an alarm needle slidable manually on the dial plate to set an alarm emitting value; a plurality of needle detection sensors arranged in the alarm needle to detect whether the needle exceeds the alarm emitting value; a storage part for storing whether an input signal from the input channel by one cycle ahead exceeds the alarm emitting value; and a determination part for determining whether to emit an alarm on the basis of a detection result of the needle detection sensor in the cycle and the information stored in the storage part. |
