YTA Series Temperature Transmitter Model YTA110, YTA310, YTA320
This report deals with the evaluation of the YTA Series temperature transmitters model YTA110, YTA310 and YTA320 manufactured by the Yokogawa Electric Corporation. The electronics of the models YTA110 and YTA310/320 are identical except for the performance specification. The instruments are standard production models manufactured in Japan. The instruments were evaluated in accordance with the standard test programme of WIB for temperature transmitters (version April 1997) and agreed with the manufacturer. On request of the manufacturer a series of aggravated tests were added to the test programme. These tests exceeded the severity levels for the standard WIB tests. Each instrument can be configured either as a TC transmitter or as an RTD transmitter (2-,3- or 4-wire). The instruments in the TC version were evaluated completely including the aggravated tests. The instruments configured as RTD transmitter were subjected to a limited test programme. The model YTA320 transmitter was subjected to a limited test programme and the aggravated tests.
YOKOGAWA ELECTRIC CORPORATION
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