OXYGEN ANALYSER MODEL HT300 - Fer Strumenti - #1

Text version of the page

ZIRCONIA BASED OXYGEN ANALYSER MODEL HT300 FOR HIGH TEMPERATURE (500-1600°C) „« In situ mounting „« High response time „« Resistant to hostile atmosphere „« No calibration for drift needed „« Suitable for dusty processes „« Advanced transmitter This analyser based on an ittria stabilized zirconia cell, is an excellent solution for oxygen measuring in the combustion chamber at high temperature. In that point oxygen measure is not influenced by the outside air that penetrates between the combustion chamber and the exit of the flue gas in the atmosphere. The analyser, whose probe is not equipped with any electric heater, con be used in process with temperature within 500 and 1600°C. The probe can be used in very dusty combustions (fluid bed) keeping a fast response time. The compensation of the zirconia cell.s output to the temperature of the electrodes, measured by the platinum thermocouple makes the analyser to be free of drift both of zero and span. A test has demonstrated stability within 0.1% over 12 months. The competitive price is compatible with the high performances and quality of the instrument because of the easy project. The instrument is composed by: the probe that is the measuring element (it is produced in three lengths), the microprocessor based transmitter and the flowmeter box. For the use of the analyser in very hostile process we can propose suitable solutions resulting from our long experience in using this type of analyser in different types of plants. All parts have been drawn and are produced by Fer Strumenti. „h The probe mod 4153 compact and resistant is equipped with a strong outside pure recristalized alumina tube. The flue gas for the analysis get in contact with the measuring cell by diffusion without any circulation of the flue gas inside the probe. The probe is mounted directly into the process, using the provided 1. NPT thread or a flange with a central 1. NPT-F threaded hole. The probe is produced in three different standard lengths: mm. 320, 500, 650 under thread. Two compression fittings for mm.6x4 tubing are prepared for driving to the cell the reference air and the gas with a known O2 content to carry on the accuracy test of the analyser and operate the calibration. The probe can be mounted in any position. If it is possible to choose, we suggest the vertical position from top. . „h The H705 converter is a field transmitter for the conversion of the electric signals from the zirconia cell and the compensation thermocouple of the FER oxygen probes mod. 4153 that are equipped with a B type thermocouple as standard and S type as option Microprocessor based connected to an analogue to digital