| 摘要 |
An automatic temperature monitoring system comprised of a central control circuit and one or more processing circuits connected thereto. Each processing circuit(s) has one or more remote temperature sensing probes connected to remote refrigerating equipment. The processing circuit(s) has switching devices for programming a microprocessor circuit of the processing circuit and for setting high and low limit parameters as well as delay parameters for analyzing current signals generated by each of the remote temperature sensing probes. A display device displays the numerical values of the limit parameters. An access circuit provides access to the stored information signals in the microprocessor and representative of accumulated monitored signals received from the sensing probes on a predetermined periodic basis. An alarm device generates an alarm upon detection of an alarm condition by the microprocessor. The probes have a current generating circuit for generating the current signals which are proportional to an ambient temperature sensed by the probe. A control circuit having a memory is provided to control the operation of the processing circuit.
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