Temperature and low water monitoring for boiler systems

摘要

A dual functionality temperature control measurement and low water cutoff measurement system is taught within a single tapping to a boiler. This dual functionality combines a low water cutoff and temperature sensor into one control utilizing a sensing element suitable for use in a single existing tapping for a boiler. Independent of low water functionality, the temperature sensor is also capable of monitoring temperature as a replacement probe in an existing temperature sensor-only well. A conductive member provides a compression fit inside the probe well for thermistors, while simultaneously providing conduction with the well interior for a low water cutoff signal in a two-conductor well.

主权项

1. A method for replacing an existing temperature sensor in a single tapping well within a boiler with a dual functioning low water cutoff sensor and temperature sensor probe, said method comprising:
removing said existing temperature sensor from said single tapping well; slidably inserting said dual functioning low water cutoff sensor and temperature sensor probe within said well, said dual functioning probe comprising: a temperature sensor within a housing inserted into a well within a boiler tapping; a low water cutoff sensor in electrical communication with said well interior; a resilient flexible connector forming the electrical communication from said low water cutoff sensor to said well interior, such that said low water cutoff sensor senses a voltage potential of said well; electrically connecting said dual functioning probe to a microcontroller; and operating said dual functioning probe using said microcontroller having software for analyzing said temperature sensor and said low water cutoff sensor signals.