DATA COMMUNICATION SYSTEM FOR ANALYZER

PURPOSE:To improve and accelerate maintenance efficiency by always monitoring an environment while improving accuracy for collecting data from slave stations, and highly frequently collecting the operation history data of an analyzer in the slave station together with measurement data. CONSTITUTION:A slave station 100 is equipped with plural analyzers 1051-105n which can store the measurement data or the operation history data as digital signals, signal converter 102 and MODEM 101 or the like, and a master station 300 is equipped with a MODEM 301 and a host computer 302 for data processing or the like. The respective MODEM 101 and 301 are connected by an inter- station communicating means such as a public line 200 and a telephone exchange station 500 or the like. According to a command from the computer 302, the prescribed analyzer in the slave station 100 transmits the measurement data or the operation history data to the master station 300, and the computer 302 analyzes these data.