SIGNAL CONVERSION TYPE PH DETECTOR

摘要

PURPOSE:To obtain high reliability without requiring a high insulating characteristic to a wiring cable and terminals by attaching freely attachably and detachably a composite electrode of a cartridge type into a casing contg. a signal converter and temp. sensitive resistance element. CONSTITUTION:An electrode chamber 3 and a converter chamber 4 are provided to the inside of a casing 1 of a signal conversion type pH detector. The chamber 3 holds a composite electrode 5 of a cartridge type. When a connector 30 provided to a wall body 2 and a connector 20 of the electrode 5 are fitted, the core wire and outside peripheral conductor thereof are connected respectively to the core wire 31 and outside peripheral conductor 32 of a connector 30. A signal converter 34 is disposed in a metallic pipe 33 attached to the chamber 4 and a temp. sensitive resistance element 35 is attached to the outside peripheral wall of the casing 1. The element 35 and the connector 30 are connected by a lead wire 36 to the converter 34. The supply of electricity to the converter 34 and the transmission of the output therefrom are executed via a cable 39. High reliability is thus obtd.