Operation - Emerson Fisher 4320 Instruction Manual

4320
September 2022
D If installing into an existing application, also refer to the WARNING in the Maintenance section.
Special Instructions for Safe Use and Installations in Hazardous Locations
Certain nameplates may carry more than one approval, and each approval may have unique installation requirements
and/or conditions of safe use. Special instructions are listed by agency/approval. To get these instructions, contact
Emerson sales office. Read and understand these special conditions of use before installing.
WARNING
Failure to follow conditions of safe use could result in personal injury or property damage from fire or explosion, or area
re‐classification.

Operation

With instruments, switches, and other accessories that are controlling valves or other final control elements, it is
possible to lose control of the final control element when you adjust or calibrate the instrument. If it is necessary to
take the instrument out of service for calibration or other adjustments, observe the following warning before
proceeding.
WARNING
Avoid personal injury or equipment damage from uncontrolled process. Provide some temporary means of control for the
process before taking the instrument out of service.
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Instruction Manual
D103621X0CN