PM11 with integrated triclamp

The PM11 flush mount pressure transmitter comes with an integrated triclamp process connection. Therefore, no additional adapters are needed. For best performance of the PM11 family of sanitary pressure transmitters, please follow the guidelines below.

On the following pages, you will find information to help you install and program the sensor as well as answers to frequently asked questions.

Sanitary installations with 3A authorization

• Ensure system pressure is removed and tank or pipe is drained prior to installation.
• Use a clamp and seal (not supplied by ifm) rated for the system pressure.
• Tightening torque of the clamp depends on the manufacturer's specifications.

Optimal sensor and atmospheric vent orientation

To avoid build-up on the measuring cell, avoid placing the measuring face horizontally, facing up. For example, in the lower secction of the pipe or tank (positions 4 or 5).

The PM sensor families are relative pressure sensors; therefore, they require a reference to the atmospheric pressure. This vent is covered to protect against ingress and build-up, which will affect the accuracy of the sensor.

Ensure the atmospheric vent is in a vertical position, or no more than a 30-degree angle if installed horizontally, to allow proper flow of washdown media.

For Installation in high humidity or where media coats sensors:

• The sensor’s atmospheric vent must be able to breathe freely for the sensor to measure accurately.
• Vent tubes can be installed to relocate the atmospheric vent to a safe area or position the vent in the appropriate position when sensor cannot be rotated.
• This is primarily a concern with lower pressure measurements in tank level applications since the vent provides the atmospheric reference for the relative pressure measurement.