Fluid Components International ST100 Series - Manual (Page 9)

ST100 Series Flow Meter INSTALLATION
Fluid Components International LLC 5
Figure 1
2 INSTRUMENT INSTALLATION
• Warning – Consult the manufacturer if dimensional information on the flameproof joints is necessary.
• Warning – The ambient temperature range and applicable temperature class of the ST100 Series flow meter is based on the maximum process
temperature for the particular application as follows; T6 for - 40 °C ≤ Ta ≤ +65 °C; T1 for - 40 °C ≤ Ta ≤ + 65 °C.
• Warning – The painted surface of the ST100 Series flow meter may store electrostatic charge and become a source of ignition in applications
with a low relative humidity < 30% relative humidity where the painted surface is relatively free of surface contamination such as dirt, dust, or
oil. Cleaning of the painted surface should only be done with a damp cloth.
• Warning – Do not replace internal battery when an explosive gas atmosphere is present.
Instrument Identification and Outline Dimensions
Appendix A provides outline dimensions and mounting bracket dimensions for all integral and remote mounted electronic configurations. Verify all
dimensions meet the application requirements before beginning the installation process.
Insertion Sensor Installation
The proper flow meter location in the process piping configuration is critical to the instruments ability to measure the process variables accurately.
FCI recommends 20 nominal pipe diameters upstream and 10 pipe diameters downstream of the instrument installation point for most applications.
These distances can be significantly reduced when the flow meter is combined with FCI’s flow conditioning technology (Vortab).
Insertion flow elements can be mounted into the process using several available customer selectable configurations; compression fitting mounted,
threaded or flanged packing gland mounted, and threaded or flanged fixed “U” length mounted process connections. The specific sensor process con-
nection is customer specified on the Order Information Sheet.
Mount the flow element to the process piping per the application piping requirements. The flow arrow etched on the element should always match
the direction of the process flow and the flat should be parallel to flow with-in +/- 3° of rotation. Flow elements with variable insertion lengths
should insert ½” inch past the centerline of the process pipe or tube and the flow direction arrow should be aligned and leveled correctly. After the
flow element has been located correctly and tightened into place, verify the process seal does not leak by slowly applying pressure until the maxi-
mum operation pressure is applied. Check for leaks at the process connection boundary using standard leak detection methods.
Figure 1. shows a properly mounted compression fitting process connection instrument.