Emerson Process Management 5300 manual Process Conditions, Dielectric Constant/Dielectric Range

Reference Manual

00809-0100-4530, Rev BA July 2009

Rosemount 5300 Series

Tank Environment

7.Specify Tank Environment HART command: [2, 1, 4]. FOUNDATION Fieldbus parameter:

TRANSDUCER 1100>MEAS_MODE

TRANSDUCER 1100>PRODUCT_DIELEC_RANGE

TRANSDUCER 1100>UPPER_PRODUCT_DC

TRANSDUCER 1100>ENV_ENVIRONMENT

Measurement Mode

Normally, the Measurement Mode does not need to be changed. The transmitter is pre-configured according to the specified model. See “Basic Configuration Parameters” on page 5-4for more information.

Process Conditions

Select the Rapid Level Changes check-box only if the surface is moving quickly up or down at rates over 1.5 in./s (40 mm/s).

Dielectric Constant/Dielectric Range

The dielectric constant of the product is used for setting the appropriate signal amplitude thresholds, see Section 7: Service and Troubleshooting for more information on amplitude threshold settings. Normally, this parameter does not need to be changed for level measurements. However, for some products, measurement performance can be optimized by setting the proper product dielectric constant.

For Interface Level measurements, the dielectric constant of the upper product is essential for calculating interface level and the upper product thickness. By default, the Upper Product Dielectric parameter is about 2.

Set the Upper Product Dielectric Constant to a value that corresponds to the current product.

5-23