What factors affect the performance of the Rosemount 3051 differential pressure transmitter?

Create Date: 2024-8-30 12:03:23|Source: Rosemount/Rosemount

1. Effect of temperature
What factors affect the performance of the Rosemount 3051 differential pressure transmitter?

Rosemount differential pressure transmitters will vary greatly in process temperature, ambient temperature, and will certainly differ from the reference conditions when the transmitter is tested, which also means that the functionality will be different from the reference accuracy presented. The effect of temperature on differential pressure transmitters is small when approaching the maximum range (i.e., small range ratio), but the effect is large when approaching the minimum range (i.e., large volume ratio), sometimes even beyond our imagination. According to some product manuals, if the maximum range ratio is 100, the effect can be close to 10%.

2. Effect of turndown ratio

The turndown ratio of a Rosemount differential pressure transmitter is the ratio of the maximum value to the minimum value that can be measured by the transmitter if the accuracy requirements are satisfied. In general, the larger the measuring ratio, the lower the measurement accuracy, the larger the measuring capacity ratio of the pressure transmitter, there are many advantages, so that after the adjustment of an instrument, it can be used in a number of different occasions. However, in practice, if the range ratio is too high, it will bring many problems of measurement stability.

3. Effect of static pressure

Similar to the effects of temperature and range, hydrostatic pressure also has a substantial impact on the accuracy of the transmitter's zero point and range. Such as capacitive differential pressure transmitter, this transmitter in the production process system operation process, will simply be affected by static pressure, when the static pressure of the operating conditions exceeds a certain value, the error of the static pressure influence will exceed the accuracy of the transmitter itself, when the channel accuracy accounting of the measurement channel, if the static pressure influence error, it may not be able to meet the channel accuracy requirements, so the capacitive differential pressure transmitter must be corrected when calibrating


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