Fluid Components International 8-66B-12-64B User Manual

CHAPTER 2 - INSTALLATION FLUID COMPONENTS INTL

2. Installation

Receiving/Inspection

• Unpack carefully.

• Verify that all items in the packing list are received and are correct.

• Inspect all instruments for damage or contaminants prior to installation.

If the above three items are satisfactory, proceed with the installation. If not, then stop and contact a customer
service representative.

Packing/Shipping/Returns

These issues are addressed in Appendix C - Customer Service

Required Materials

Appropriate wire, cable, conduit, and a mating interface on the vessel.

Note:

Potting Y's for all the interconnecting wires are recommended when installing the instrument. Other
requirements may vary based on local wiring codes. An appropriate mating surface on the vessel is
also required.

Pre-Installation Procedure

Warning:

Caution:

Only qualified personnel should install this instrument. Install and follow safety procedures in
accordance with the current National Electrical Code. Ensure that power is off during
installation. Any instances where power is applied to the instrument will be noted in this manual.
Where the instructions call for the use of electrical current, the operator assumes all responsibility
for conformance to safety standards and practices.

The control circuit contains electrostatic discharge (ESD) sensitive devices. Use standard ESD
precautions when handling the control circuit. See below for ESD details.

The instrument is not designed for weld-in-place applications. Never weld to process connection
or a structural support.

Damage resulting from moisture penetration of the local enclosure is not covered by product
warranty.

Use Standard ESD Precautions

Use standard ESD precautions when opening an instrument enclosure or handling the level transmitter. FCI
recommends the use of the following precautions: Use a wrist band or heel strap with a 1 megohm resistor connected
to ground. If the instrument is in a shop setting there should be static conductive mats on the work table and floor
with a 1 megohm resistor connected to ground. Connect the instrument to ground. Apply antistatic agents to hand
tools to be used on the instrument. Keep high static producing items away from the instrument such as non-ESD
approved plastic, tape and packing foam.

Doc. No. 06EN003264 Rev. A 2 - 1 Models 12-64/8-66 Basic Switch

FLUID COMPONENTS INTL CHAPTER 2 - INSTALLATION

The above precautions are minimum requirements to be used. The complete use of ESD precautions can be found in
the U.S. Department of Defense Handbook 263.

Verify Installation Location

Prepare the vessel for installation, or inspect the already prepared location to ensure that the instrument will fit into
the system. Prepare the necessary sealants or gaskets to provide a leakproof installation for the application if
required. The location of the 12-64 that should have been prepared at the time of order should be at least 20 pipe
diameters downstream and 10 pipe diameters upstream from any bends or interference in the process pipe or duct to
achieve the greatest accuracy.

Sensing Element Installation

Install the sensing element in the process piping at the desired location. Verify that the flat area machined into the
sensing element is flat and level. If the flat is present it is machined on the sensing element near where it is screwed
into the enclosure. "FLAT UP & LEVEL" is also etched on the flat surface.

Apply a lubricant/sealant compatible with the process to all threads. Use a pipe wrench for 1-1/4 inch (32 mm) NPT
and larger connections, or an open-end wrench for 1-1/4 inch (32mm) NPT and smaller connections. All
connections should be tightened firmly. To avoid leaks, do not overtighten or cross-thread connections. The figures
in Appendix A and Figure 2-1, show this configuration.

If the sensing element is mounted in a downward direction, moisture build up in the enclosure needs to be avoided.
FCI recommends that an O-ring be used on the enclosure cover. In addition, attached conduits must be isolated by
using a conduit potting Y.

12-64 BASIC 8-66 BASIC

C00166-1C00033-1

Figure 2-1. Sensing Element Threaded Mounting

Control Circuit Installation

The configuration of the instrument is with the control circuit already installed in the local enclosure (the control
circuit is physically mounted with the sensing element).

Wiring Installation

Conduit Routing

All socket and/or terminal block connections are to be made through the 1 inch female NPT openings in the
enclosure. FCI strongly recommends that all electrical cables be run through an appropriate conduit for the
protection of the instrument and personnel.

Protection of the control circuit from moisture is an important consideration. Keep the entry of the conduit into the

Models 12-64/8-66 Basic Switch 2 - 2 Doc. No. 06EN003264 Rev. A