Manuale d’uso / di manutenzione del prodotto 2090 del fabbricante Emerson Process Management
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Reference Manual 00809-0100-4690, Rev EA March 2007 Rosemount 2088 and 2090 www .rosemount.com Section 3 Inst allation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1 Safety Messages . . . . . . . . . . .
Reference Manual 00809-0100-4690, Rev EA March 2007 Rosemount 2088 and 2090 3-2 W arnings Explosions could result in death or serious injury: • Do not remove the transmitter cover in explosive atmospheres when the circuit is alive.
Reference Manual 00809-0100-4690, Rev EA March 2007 3-3 Rosemount 2088 and 2090 Figure 3-1. Installation Flowchart. Check for Leaks (Process Connections) Zero T rim T ransmitter for Mounting Effect s .
Reference Manual 00809-0100-4690, Rev EA March 2007 Rosemount 2088 and 2090 3-4 GENERAL CONSIDERATIONS The accuracy of the pressure measurement depends on proper installation of the transmitter and impulse piping. The piping between the process and transmitter must accurately transmit pr essure to the transmitter .
Reference Manual 00809-0100-4690, Rev EA March 2007 3-5 Rosemount 2088 and 2090 MECHANICAL CONSIDERATIONS Mounting Rosemount 2088 The Rosemount 2088 Smart T ransmitter weighs approximately 2.44 lb. (1,1 1 kg). The 2088 Analog T ransmitter weighs approximately 1.
Reference Manual 00809-0100-4690, Rev EA March 2007 Rosemount 2088 and 2090 3-6 Impulse Piping Impulse piping configurations depend on specific measurement conditions. Use the following information and Figur e 3-3 as a guideline when installing impulse piping.
Reference Manual 00809-0100-4690, Rev EA March 2007 3-7 Rosemount 2088 and 2090 Access Requirement s When choosing a mounting location and pos ition, take into account the need for access to the transmitter . Make wiring terminations through the conduit openings at the top of the electronics housing.
Reference Manual 00809-0100-4690, Rev EA March 2007 Rosemount 2088 and 2090 3-8 Nameplate 3.9 (100) 2X 1 / 4 –20 UNC–2BX 0.60 Deep Mounting Bracket Holes 4.7 (140) T erminal Connections T ransmitter Circuitry Side Optional Meter Cover 5.0 (125) W eld Spud 1.
Reference Manual 00809-0100-4690, Rev EA March 2007 3-9 Rosemount 2088 and 2090 Rosemount 2090P Installing the Rosemount 2090P transmitter involves att aching a weld spud to the tapped process vessel, att aching t he transmitter to the weld spud, and making electrical connections.
Reference Manual 00809-0100-4690, Rev EA March 2007 Rosemount 2088 and 2090 3-10 3. Hand tighten the transmitter using the knurled retaining ring, then snug an additional 1 / 8 turn with adjustable pliers. IMPORT ANT Do not over-tighten the retaining ring.
Reference Manual 00809-0100-4690, Rev EA March 2007 3-1 1 Rosemount 2088 and 2090 Rosemount 2090F The Rosemount 2090F sanitary pressu re transmitter is designed to be installed directly to a sanit ary fitting. T he transmitter is available with either a 1.
Reference Manual 00809-0100-4690, Rev EA March 2007 Rosemount 2088 and 2090 3-12 Figure 3-9. T ransmitter Load Limitations Field Wiring All power to the transmitter is supplie d over the signal wiring. Signal wiring need not be shielded, but use twisted pairs for best results.
Reference Manual 00809-0100-4690, Rev EA March 2007 3-13 Rosemount 2088 and 2090 Figure 3-10. Rosemount 2088 Smart Signal Wiring T erminals. FAILURE MODE AND SECURITY JUMPERS Failure Mode As part of normal operation, the Rosemount 2088/2090 Smart Pressure T ransmitter continuously monitors its own operation.
Reference Manual 00809-0100-4690, Rev EA March 2007 Rosemount 2088 and 2090 3-14 With a meter inst alled The failure mode alarm jumper is located on the LCD faceplate in the electronics module side of the transm itter housing and is labeled ALARM (See Figure 3-1 1).
Reference Manual 00809-0100-4690, Rev EA March 2007 3-15 Rosemount 2088 and 2090 NOTE If either the alarm or security jumper is dislodged or removed from its position the transmitter reverts to defaul.
Reference Manual 00809-0100-4690, Rev EA March 2007 Rosemount 2088 and 2090 3-16 Disabling the Zero and Sp an Adjustment s After you rerange the transmitter usi ng the sp an and zero adjustments, you may wish to disable the adjustments to prevent further reranging.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Emerson Process Management 2090 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Emerson Process Management 2090 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Emerson Process Management 2090 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Emerson Process Management 2090 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Emerson Process Management 2090, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Emerson Process Management 2090.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Emerson Process Management 2090. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Emerson Process Management 2090 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
