Instruction Manual

Instruction Manual
D103216X012
L2sj Controller
January 2015
7
in diameter will suffice in most applications, check with an Emerson Process Management field office and industry
instrument air quality standards for use with corrosive air or if you are unsure about the proper amount or method of air
filtration or filter maintenance.
Provide a source of clean, dry air that meets the requirements of ISA Standard 7.0.01 or noncorrosive gas as the
operating medium. Refer to table 1 to determine supply pressure.
1. Connect the supply pressure to the 1/4 NPT internal connection on the bottom of the controller case.
2. Connect the output signal line to the equipment being operated and to the 1/4 NPT output connection on the top
of the controller case.
Vent
WARNING
If a flammable or hazardous gas is to be used as the supply pressure medium, personal injury or property damage could
result from fire or explosion of accumulated gas or from contact with hazardous gas. The controller/actuator assembly
does not form a gas‐tight seal, and when the assembly is enclosed, a remote vent line, adequate ventilation, and necessary
safety measures should be used. A remote vent pipe alone cannot be relied upon to remove all hazardous gas. Vent line
piping should comply with local and regional codes and should be as short as possible with adequate inside diameter and
few bends to reduce case pressure buildup.
The vent opening or the end of the remote vent pipe, if one is required, must be protected against the entrance of all
foreign matter that could plug the vent. Use 13 mm (1/2‐inch) diameter pipe for the remote vent pipe. Check the vent
periodically to be certain it is free of any obstructions.
Setup and Adjustments
Dry Displacer Setup
Refer to the setup and adjustments label shown in figure 4 for the following adjustments.