1. Moment arm (driver rod) length is the perpendicular distance between the vertical centerline of the displacer and the horizontal centerline of the torque tube. See figure 4‐2. If you cannot
determine the driver rod length, contact your Emerson Process Management sales office and provide the serial number of the sensor.
2. This table applies to sensors with vertical displacers only. For sensor types not listed, or sensors with horizontal displacers, contact your Emerson Process Management sales office for the
driver rod length. For other manufacturers' sensors, see the installation instructions for that mounting.
1. Enter displacer length, weight, volume units and values, and moment arm length (in the same units chosen for
displacer length) when prompted.
2. Choose Instrument Mounting (left or right of displacer, refer to figure 2‐5).