Rosemount 3095 - Field Installation Procedure

2-19
Level Controller Overview and Installation
FIELD INSTALLATION
PROCEDURE
The field installation procedure involves mounting the Level
Controller, connecting it to the process, and completing the field wiring.
Field Installation
Equipment
The following equipment and tools are not provided with the Level
Controller. Be sure to review this list before field installing the controller.
• Installation tools
• Field wire between the power supply and the Level Controller
and between the Level Controller and the actuator device
• Actuator device
• Barriers or seals required for hazardous locations
• Conduit
• 2-in. mounting pipe or saddles
• Power supply
• 3- or 5-valve manifold
• Impulse piping
• Tie wraps
• Load resistor
Review Installation
Considerations
Review the installation considerations described on pages 2-9 through
2-18 in this section to determine the location for the Level Controller.
Mount Controller and
Install Bolts
Mount the Level Controller in the desired location, and install flange or
flange/adapter bolts. Only use bolts supplied with the Level Controller
or sold by Rosemount Inc. as a spare part to the Level Controller.
Unauthorized parts can affect product performance and may impair the
protection provided by the equipment.
1. Finger-tighten the bolts.
2. Torque the bolts to the initial torque value (see Table 2-2) using a
cross-pattern.
3. Torque the bolts to the final torque value (see Table 2-2) using the
same cross-pattern.
When installing the controller to one of the mounting brackets, torque
the mounting bracket bolts to 125 in-lb (169 n-m).
Make Process
Connections
Connect the Level Controller to the process. All four flange bolts must
be installed and tight before applying pressure, or process leakage will
result. When properly installed, the flange bolts protrude through the
top of the module housing. Attempting to remove the flange bolts while
the controller is in service will result in process leaks.
TABLE 2-2. Bolt Installation
Torque Values.
Bolt Material Initial Torque Value Final Torque Value
Carbon Steel (CS) 300 in-lb (407 n-m) 650 in-lb (881 n-m)
Stainless Steel (SST) 150 in-lb (203 n-m) 300 in-lb (407 n-m)