Emerson 781 Manuale di riferimento - Pagina 6

Sfoglia online o scarica il pdf Manuale di riferimento per Apparecchiature industriali Emerson 781. Emerson 781 13. Smart wireless field link

Reference Manual

00809‐0200‐xxxx, Rev AA

April 2010

Grounding

The Field Link enclosure should always be grounded in accordance with national and local electrical codes. The

most effective grounding method is a direct connection to earth ground with minimal impedance. Ground the

Field Link by connecting the external ground lug to earth ground. The connection should be 1 Ω or less.

STEP 2: Verify Operation

Add local display screens here.

Power‐Up Sequence

Upon applying power to the Field Link the LCD meter will activate and display a series of startup screen. The

following screens are displayed during startup.

1. Startup Screen 1 – All segments on

2. Startup Screen 2 – Device Identification

3. Startup Screen 3 – Tag

4. Startup Screen 4 – Status

Normal Operation

After the initial startup screens the Field Link will cycle through several periodic screens.

1. Electronics Temperature Screen

2. Percent Range Screen

3. Wired Interface Usage

4. Radio Interface Usage

The field link will continue to rotate through each periodic screen through the course of normal

operation. If any diagnostic or fault condition occurs, a corresponding diagnostics screen will appear.