Emerson Process Management Bristol Series 9110 - Manual (Page 19)

CI-9110 2-1 Installation
Chapter 2
INSTALLATION
2.1 GENERAL
Proper installation techniques will ensure highest performance and also minimize
measurement errors. The Remote Set Regulator should be mounted in a location that is not
subject to radical temperature extremes, vibration and shock. See Section 6 Specifications
for environmental operating conditions.
This section describes the mechanical mounting arrangements of the Regulator and
explains the technique of bringing in wiring via electrical conduit.
The installation procedures described herein are furnished as a guideline and cannot cover
all possible variations. All deviations from the installation procedures described herein are
at the discretion of the user.
2.2 MOUNTING
The overall mounting dimensions for the unit are given in Figure 2-1. Be sure that the
selected site has sufficient clearance to remove the Regulator cover and access internal
switches and terminals. Choose the appropriate mounting arrangement below as required
2.2.1 Two-Inch Pipe Mounting
Refer to the overall dimension of Figure 2-1 for views of the universal pipe mounting
bracket. For this type of installation, the bracket is assembled to the Regulator using three
screws. Select the desired set of bracket holes for either vertical or horizontal mounting
pipes.
Once the bracket is mounted, position the assembly next to the pipe as required and install
the u-bolts from the hardware kit into the appropriate bracket holes. Install nuts on the u-
bolts and tighten them until the instrument is self-supporting.
2.2.2 In-Line Mounting
In-line mounting can be used when the pressure line and electrical conduit provide
sufficient strength to support the weight of the unit. This type of mounting should never be
attempted on lines constructed of soft or low-strength materials. In-line mounting is also
not recommended for non-secured lines subject to excessive vibration or hammering.
Once the desired location has been selected, cut the pressure pipe and install proper fittings
(1/4 in. NPT male) to mate with the two pressure connection ports on the Regulator. It is
recommended that unions and shutoff valves also be installed in each line to allow an easy
disconnect for maintenance or troubleshooting operations.