Le manuel d'utilisation Emerson Process Management 3051N Sleep Apnea Machine

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Reference Manual 00809-0100-4808, Rev CA June 2008 www .rosemountnuclear .com Rosemount 3051N Smart Pressure T ransmitter for Nuclear Service.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Rosemount 3051N Smart Pressure T ransmitter for Nuclear Service Rosemount 3051 HART Universal Revision 5 Rosemount 3051N Smart Pressure T ransm itters may be protected by one or more of th e following U.
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ii Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N Rosemount Nuclear Instrument s, Inc. W arranty and Limit ations of Remedy The warranty and limitations of remedy applicable to this Rosemount equipment are as st ated on the reverse of the current Rosemount quotation and customer acknowledgment forms.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Revision S t atus Changes from June 2006 to June 2008 NOTE The above Revision S tatus list summarizes the changes made. Please refer to bo th manuals for complete comparison det ails.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N iv.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com T able of Content s SECTION 1 Introduction Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 SECTION 2 Transmitter Functions Overview .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N TOC -2 Zero Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 Full Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Reference Manual 00809-0100-4808, Rev CA June 2008 TOC -3 Rosemount 3051N Temperature Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Span and Zero, Zero Elevation, and Supp ression . . . . . . . . . . . . . 5-6 Humidity Limits .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N TOC -4 Multifunction LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12 Touch Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Section 1 Introduction USING THIS MANUAL The sections in this manual provide in formation on installing, operating, and maintaining devices from the Rosemount 3051N Smart Pressure T ransmitter Family .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 1-2.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Section 2 T ransmitter Functions Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1 Safety Messages . . . . . . .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-2 FAILURE MODE ALARM Rosemount 3051N transmitters autom atically and continuously perform self-diagnostic routines. If the self-dia gnostic routines detect a failure, the transmitter drives its output out sid e of the normal saturation values.
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Reference Manual 00809-0100-4808, Rev CA June 2008 2-3 Rosemount 3051N 1. Security Jumper: prevents all writes to transmitter configuration. 2. Local Keys (Local Zero and S pan) Sof tware Lock Out: prevents changes to transmitter range po ints via local zero and sp an adjustment keys.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-4 FIGURE 2-1. Electronics Board. FIGURE 2-2. Rosemount 3051N with Optional LCD Meter . COMMISSIONING THE ROSEMOUNT 3051N WITH A HART -BASED COMMUNICATOR Commissioning consists of testing the transmitter and verifying transmitter configuration data.
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Reference Manual 00809-0100-4808, Rev CA June 2008 2-5 Rosemount 3051N T o commission on the bench, connect the transmitter and the communicator as shown in Figure 2-3.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-6 Wiring Diagrams (Field Hook-up) The following diagrams illustrate wiring loops for a field hook-up with a HART -based Communicator . FIGURE 2-4. Field Hook-up (4–20 mA T ransmitters).
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Reference Manual 00809-0100-4808, Rev CA June 2008 2-7 Rosemount 3051N REVIEW CONFIGURATION DATA NOTE Information and procedures in this section that make use of HART Communicator fast key sequences assume that the transmitter and communicator are connected, powered, and operating correctly .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-8 NOTE Regardless of the range points, th e Rosemount 3051N will measure and report all readings within the digital lim its of the sensor .
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Reference Manual 00809-0100-4808, Rev CA June 2008 2-9 Rosemount 3051N FIGURE 2-5. Square Root Output T ransition Point. Rerange The Range V alues command sets the 4 and 20 mA point s (lower and upper range values). Setting the range values to the limits of expected readings maximizes transmitter performance.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-10 NOTE If the transmitter security jumper is in the ON position, you will not be able to make adjustments to the zero and span. Refer to Figure 2-1 for the appropriate placement of the transmitter security jumper .
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Reference Manual 00809-0100-4808, Rev CA June 2008 2-1 1 Rosemount 3051N T o rerange the transmitter using t he span and zero buttons, perform the following procedure: 1. Loosen the screw holding the label on top of the transmitter housing, and rotate the label to expose the zero and sp an buttons (see Figure 2-6).
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-12 Damping The process variable (PV) Damp command changes the res ponse time of the transmitter to smooth variations in output readings caused by rapid changes in input.
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Reference Manual 00809-0100-4808, Rev CA June 2008 2-13 Rosemount 3051N Transmitter T est The transmitter Self T est command initiates a mo re extensive diagnostics routine than that performed continuously by the transmitter . The transmitter test routine can quickly identify potential electronics problems.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-14 Smart transmitters operate differently than analog transmitters. A smart transmitter uses a microprocessor and sensor memory that contains information about the sensor ’s specific c haracteristics in response to pressure and temperature inputs.
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Reference Manual 00809-0100-4808, Rev CA June 2008 2-15 Rosemount 3051N Calibration Overview Complete calibration of the Rosemount 3051N Pressure T ransmitter involves the following tasks: Configure t.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-16 FIGURE 2-7. T ransmitter Data Flow with Calibration Options. Deciding Which Trim Procedure to Use T o decide which trim procedur.
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Reference Manual 00809-0100-4808, Rev CA June 2008 2-17 Rosemount 3051N When performing a zero trim, ensure that the equalizing valve is open and all wet legs are filled to the correct levels. NOTE Do not perform a zer o trim on Ro semount 3051N Absolute pressure transmitters .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-18 Full Trim T o calibrate the sensor with a HART Communicator using the full trim function, perform the following procedure: 1.
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Reference Manual 00809-0100-4808, Rev CA June 2008 2-19 Rosemount 3051N Recall Factory T rim The Recall Factory T rim commands allow the restoration of the as-shipped factory settings of the sensor trim and analog output trim. Recall Factory T rim— Sensor T rim Resets the transmitter sensor trim to the as-shipped factory settings.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-20 NOTE Use a precision resistor for optimum ac curacy . If you add a resistor to the loop, ensure that the power supply is suff icient to power the transmitter to a 20 mA output with the additional loop resistance.
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Reference Manual 00809-0100-4808, Rev CA June 2008 2-21 Rosemount 3051N HT c = URV + S (URV) P s In this example: T o calculate the corrected low trim (L T c ) value: T o calculate the corrected high trim (HT c ) value: T o complete a Rosemount 3051N full trim , enter the corrected values for low trim (L T) and high trim (HT).
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 2-22.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Section 3 Inst allation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1 Safety Messages . . . . . . . . . . .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 3-2 Replacement equipment or sp are part s not approved by Rosemount Nuclear Instruments, Inc. for use as sp are p a rts could reduce the pressure ret aining capabilities of the transmitter and may render the instrume nt dangerous or adversely impact it s qualification st atus.
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Reference Manual 00809-0100-4808, Rev CA June 2008 3-3 Rosemount 3051N FIGURE 3-1. T ypical Installation Flowchart. ST ART HERE Bench Calibration? Field Install No Configure (Section 2) Set Units Set .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 3-4 GENERAL CONSIDERATIONS Measurement accuracy depends upon proper installation of the transmitter and impulse piping. Mount the transmi tter close to the process and use a minimum of piping to achieve best accuracy .
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Reference Manual 00809-0100-4808, Rev CA June 2008 3-5 Rosemount 3051N NOTE For steam service, do not blow down im pulse piping through the transmitter . Flush the lines with the bl ocking valves closed and re fill the lines with water before resuming measurement.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 3-6 FIGURE 3-3. Rosemount 3051N Coplanar Flange Dimensional Drawing (Differential Pressure T ransmitter Shown) 7.1 (181) Note Dimensions are nominal in inches (millimeters). 4.1 (105) Te rm i n a l Connections 0.
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Reference Manual 00809-0100-4808, Rev CA June 2008 3-7 Rosemount 3051N FIGURE 3-4. T raditional Flange Moun ting Configurations with Optional Brackets for Panel Mounting 2.63 (66.8) 9.4 (239) 6.3 (181) 5 / 16 Bolts for P anel Mounting (Not Supplied) 2.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 3-8 FIGURE 3-5. T raditional Flange (Opt ion Code H2) Dimensional Drawing T erminal connections 1.63 (41.4) 0.75 (20) Clearance for Cover Remo val 1 / 2 -14 NPT Conduit Connection (T wo Places) 4.
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Reference Manual 00809-0100-4808, Rev CA June 2008 3-9 Rosemount 3051N Mounting The Rosemount 3051N Pressure T ransmitter weighs approximately 6.0 lb (2,7 kg) without additional options. For complete weight information, including options, see “Physical S pecificatio ns” in Section 5.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 3-10 NOTE In steam or other elevated temperature services, it is important that temperatures at the coplanar process flanges not exceed 250 °F (121 °C). In vacuum service, these temperature limits are reduced to 220 °F (104 °C).
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Reference Manual 00809-0100-4808, Rev CA June 2008 3-1 1 Rosemount 3051N FIGURE 3-6. T ypical Inst allation Examples to I llustrate Transmitter and Impulse Piping Locations. Impulse Piping The piping between the proc ess and the transmitter must accurately transfer the pressure to obtain accurate meas urement s.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 3-12 Process Connections Rosemount 3051N connections on the transmitter flange are 1 / 4 –18 NPT .
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Reference Manual 00809-0100-4808, Rev CA June 2008 3-13 Rosemount 3051N FIGURE 3-7. Power Supply Load Limitations. Wiri ng T o make connections, perform the following procedure: 1. Remove the housing cover on the si de marked “FIELD TERMINALS.” Do not remove the cover in explosive atmo spheres when the circuit is alive.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 3-14 Grounding the T ransmitter Case The transmitter case should always be grounded in accordance with national and local electrical codes. The most ef fective transmitter case grounding method is direct connection to eart h ground with minimal impedance.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Section 4 T roubleshooting Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1 Safety Messages . . . . . . . . . .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 4-2 T a ble 4-1. Rosemount 30 51N T roubleshooting Chart. The Rosemount 3051N is supplied by Rosemount Nuclear Instrument s, Inc. as a non-field repairable device to ensure it s qualification status is main t ained.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Section 5 S pecifications and Reference Dat a Nuclear Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1 Performance Specifications .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 5-2 Environment al Performance to normal operating limits as described in the “Performance S pecifications” and “Functional S pecif ications” sections of this manual.
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Reference Manual 00809-0100-4808, Rev CA June 2008 5-3 Rosemount 3051N PERFORMANCE SP ECIFICATIONS Based upon zero-based calibrations, reference conditions, 4–20mA analog output, and digital trim va.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 5-4 Overpressure Effect Maximum zero shift af ter overpressure equal to Maximum Working Pressure Rosemount 3051ND Rosemount 3051NG Rosemount 3051NA St atic Pressure Effect Rosemount 3051ND Rosemount 3051ND Power Supply Effect Less than ±0.
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Reference Manual 00809-0100-4808, Rev CA June 2008 5-5 Rosemount 3051N FUNCTIONAL SP ECIFICATIONS Service Liquid, gas, or vapor Output 4–20 mA, user-selectable for linear or square root output; digi.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 5-6 Sp an and Zero, Zero Elevation, and Suppression Zero and span values can be set anywhere within the range limit s stated in T able 5-2 and T able 5-3, providing sensor limits are not exceeded.
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Reference Manual 00809-0100-4808, Rev CA June 2008 5-7 Rosemount 3051N Figure 5-1. T ypical Smart T ransmitter Response T ime Maximum Working Pressure (1)(2) Rosemount 3051ND S tatic pressure limit Ro.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 5-8 PHYSICAL SP ECIFICATIONS MATERIALS OF CONSTRUCTION Isolating Diaphragms 316L SST Drain/V ent V alves 316 SST Process Flanges CF-8.
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Reference Manual 00809-0100-4808, Rev CA June 2008 5-9 Rosemount 3051N Option Code Description Add: J S tainless S teel Housing 3.1 lb (1.4 kg) H2 T raditional Flange 2.4 lb (1.1 kg) M5 LCD Meter for Aluminum Housing 0.5 lb (0.2 kg) M6 LCD Meter for SST Housing 1.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 5-10 ORDERING INFORMATION Rosemount 3051N (1) Differential, Gage, and Absolute Pressure T ransmitters — = Not Applicable • = Appl.
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Reference Manual 00809-0100-4808, Rev CA June 2008 5-1 1 Rosemount 3051N NOTE Mounting Bracket option code must be specified last in the Rosemount model number even if optional meter is ordered. CONFIGURATION INFORMATION T ransmitter is shipped as follows (unl ess different calibration is specified).
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 5-12 ROSEMOUNT 3051N 4-20 M A/HART OUTPUT SMART PRESSURE T RANSMITTERS T YPICAL CONFIG URATION DAT A WORKSHEET CONFIGURA TION D A T A.
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Reference Manual 00809-0100-4808, Rev CA June 2008 5-13 Rosemount 3051N HARD W ARE SELECT A BLE INFORMA TION Alarm Option:  High ★  Low T ransmitter Security :  Off ★  On SIGNAL SELECT.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 5-14 Figure 5-2. Rosemount 3051N Exploded View (with Coplanar Process Flange). Label Electronics Boar d Nameplate Sensor Module Proce.
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Reference Manual 00809-0100-4808, Rev CA June 2008 5-15 Rosemount 3051N.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 5-16.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Section 6 Options Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6-1 Safety Messages . . . . . . . . . . . . . .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 6-2 The meter features a two-line display with five digits for reporting the process variable on the top line and six characters for displaying engineering units on the bottom line. The LCD meter can also display flow and level scales.
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Reference Manual 00809-0100-4808, Rev CA June 2008 6-3 Rosemount 3051N a. Select 5 CM xfer fnct . Enter the transmitter transfer function for the meter . Select sq root to display flow units. The custom meter transfer function is independent of the analog output transfer function.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 6-4 4. Insert the interconnection header in the ten-pin socket exposed by removal of the jumpers.
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Reference Manual 00809-0100-4808, Rev CA June 2008 6-5 Rosemount 3051N FIGURE 6-2. Rosemount 3051N with Optional LCD Meter . Diagnostic Messages In addition to the output, the LCD mete r displays abbreviated operation, error , and warning messages for troubleshooting the transmitter .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 6-6 Some non-volatile memory faults are user-addressable. Use a HAR T Communicator to diagnose the error and determine if it is repairable. Any error message that ends in “F ACT ORY” is not repairable.
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Reference Manual 00809-0100-4808, Rev CA June 2008 6-7 Rosemount 3051N Operation Normal operation messages appear on the LCD meter to confirm actions or inform you of transmitter status. Operat ion messages are displayed with other transmitter information, and warrant no action to correct or alter the transmitter settings.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 6-8 Option PM is a SST pipe mount bracke t assembly designed for use in pipe mounting the T raditional Flange (H2). It is the same bracket used on other RNII nuclear qualified transmitters, including the Rosemount 1 154 Series H.
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Reference Manual 00809-0100-4808, Rev CA June 2008 6-9 Rosemount 3051N FIGURE 6-4. T ransient Protection T erminal Block (T1)..
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N 6-10.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Appendix A HART Communicator Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-1 Safety Messages . . . . . . . . .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N A-2 W arnings Explosions can result in death or serious injury . • Do not remove the transmitter covers in explosive environments when the circuit is alive.
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Reference Manual 00809-0100-4808, Rev CA June 2008 A-3 Rosemount 3051N FIGURE A-1. HART Communicator T ypical Abbreviated Menu Tr ee for Rosemount 3051.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N A-4 T a ble A-1. T ypical HAR T Fast Key Sequen ces for the Rosemount 3051 (partial listing).
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Reference Manual 00809-0100-4808, Rev CA June 2008 A-5 Rosemount 3051N CONNECTIONS AND HARDWARE The HART Communicator can interface with a transmitter from the control room, the instrument site, or any wiri ng termination point in the loop through the communicator connections as show n in Figure A-2 and Figure A-3.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N A-6 FIGURE A-4. Bench Hook-up (4–20 mA T ransmitters). FIGURE A-5. Field Hook-up (4–20 mA T ransmitters). Current Meter R L ≥ 250 Ω 24 V dc Supply CA UTION: Do not use inductive-based transient protectors.
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Reference Manual 00809-0100-4808, Rev CA June 2008 A-7 Rosemount 3051N ROSEMOUNT 275 Communicator Keys The keys of the Rosemount 275 HA RT Communicator include action, function, alphanumeric, and shift keys. FIGURE A-6. Rosemount 275 HART Communicator .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N A-8 Hot Key Use this key to quickly access impo rtant, user-selectable options when connected to a HART -compatible device. Pressing the HOT KEY turns the HART Communicator on and displays the Hot Key Menu.
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Reference Manual 00809-0100-4808, Rev CA June 2008 A-9 Rosemount 3051N Fast Key Sequences HART fast key sequences provide quick on-line access to most transmitter variables and functions.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N A-10 NOTE Online communication with the transmitt er automatically loads the current transmitter data to the HAR T Comm unicator . Changes in on-line dat a are made active by pressing SEND (F2) .
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Reference Manual 00809-0100-4808, Rev CA June 2008 A-1 1 Rosemount 3051N ROSEMOUNT 375 Communicator Keys The keys of the Rosemount 375 HART Communicator include navigation, function, alphanumeric, and tab keys. The keypad and touch screen have nearly total function redundancy .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N A-12 Enter Key The enter ( ) key allows you to launch the focused item or to complete an editing action.
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Reference Manual 00809-0100-4808, Rev CA June 2008 A-13 Rosemount 3051N Using the Sof t Input Panel (SIP) keyboard The SIP keyboard allows for alphanumeric input using the touch screen. The SIP keyboard detects when you need to enter characters and will appear automatically as required.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N A-14 Fast Key Sequences The Fast Key sequence is a sequenc e of numerical button presses, corresponding to the menu options that lead you to a given task. Use T able A-1, an alphabetical listing of most on-line functions, to find the corresponding HART fast key sequences.
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Reference Manual 00809-0100-4808, Rev CA June 2008 A-15 Rosemount 3051N Add item for ALL device types or only for this ONE device type. Asks the user whether the hot ke y item being added should be added for all device types or only for the type of device that is connected.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N A-16 Looking for a device Polling for multidropped devices at addresses 1–15. Local buttons operator error ON Illegal pressure applied during zero or span operation. Repeat the process after verifying the correct pressures.
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Reference Manual 00809-0100-4808, Rev CA June 2008 A-17 Rosemount 3051N ROM checksum error ON Checksum of transmitter software has detected a fault. Return to Rosemount Nuclear Instru ments, Inc. for repair . Save data from device to configuration memory Prompts user to press SA VE softkey to initiate a device-to-memory transfer .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N A-18 V alue out of range The user-entered value is either not within the range for the given type and size of variable or not within the min/max specified by the device.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Glossary Analog Output T rim Digit al T rim operation that allows adj ustment of the output electronics to conform to the plant standard. Three types of analog output trim are available: 4–20 mA T rim, 4–20 mA Other Scale, an d Low Power .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N G-2 Lower Range V alue (LR V) Lowest value of the measured variable that the analog output of the transmitter is currently configured to measure. Multidr opping The connection of several transmitters to a single communications transmission line.
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N www .rosemountnuclear .com Index A Access Requirements . . . . . . 3-14 Alarm and Secu rity Jumper Configuration Procedure . . . . . 2-3 Alarm Level Verification . . . . . 2-2 Analog Output Trim .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N Index-2 S Security . . . . . . . . . . . . . . . . 2-2 Local Zero and Span Physical Removal . . . . . . 2-3 Local Zero and Span Software Lock Out . . . . . . 2-3 Write Protect . . . . .
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Reference Manual 00809-0100-4808, Rev CA June 2008 Rosemount 3051N The Emerson logo is a trade mark and service mark of Emerson Electric Co. Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc. PlantWeb is a mark of one of the Em erson Process Management comp anies.

Lire le manuel d'utilisation Emerson Process Management 3051N - éviter les problèmes

Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:

pour savoir comment utiliser correctement l'appareil
pour savoir comment entretenir et effectuer des inspections périodiques du fonctionnement correct du produit Emerson Process Management 3051N
pour savoir comment procéder en cas de défaillance Emerson Process Management 3051N

Si vous n'avez pas encore acheté Emerson Process Management 3051N c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Emerson Process Management 3051N - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Emerson Process Management 3051N, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Emerson Process Management 3051N va certainement vous aider à prendre une décision concernant l'achat.

Dans une situation où vous avez déjà le Emerson Process Management 3051N, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Emerson Process Management 3051N.

Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Emerson Process Management 3051N. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Emerson Process Management 3051N ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.

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