Emerson 2500 - Manuals

4-wire remote installation Figure 1-1: Sensor Core processor Transmitter 4-wire cable • Remote core processor with remote sensor – A remote core process with remote sensor installation separates all three components – transmitter, core processor,and sensor – all of which are installed separately. A ...

Remote core processor with remote sensor installation Figure 1-2: Core processor Transmitter 4-wire cable 9-wire cable Sensor Junction box 1.1.2 Maximum cable lengths The maximum cable length between flowmeter components that are separately installedis determined by cable type. See Table 1-1 . Maxim...

The transmitter's model number is on a tag on the side of the transmitter. You can use themodel number to determine the transmitter's output option. The first four characters arethe transmitter type. The fifth character is the installation type. The eighth character is theoutput option. The remainin...

• Verify that the transmitter has the appropriate hazardous area approval. Eachtransmitter has a hazardous area approval tag attached to the transmitter housing. • Ensure that any cable used between the transmitter and the sensor meets thehazardous area requirements. 1.5 Power requirements The trans...

2 Mounting and sensor wiring for 4- wire remote installations Topics covered in this chapter: • Mounting the transmitter to a DIN rail • Prepare the 4-wire cable • Wire the transmitter to the sensor • Ground the flowmeter components 2.1 Mounting the transmitter to a DIN rail The transmitter is desig...

Mounting multiple transmitters Figure 2-2: A B A. 0.33 in or greater (8.5 mm or greater) B. End bracket or end stop; 0.33 in (8.5 mm) minimum spacing 2.2 Prepare the 4-wire cable Important For user-supplied cable glands, the gland must be capable of terminating the drain wires. Note If you are insta...

4-wire cable preparation Figure 2-3: Cable layout Run conduit to sensor Metal conduit Wrap the drain wires twice around the shield and cut off the excess drain wires. Micro Motion cable gland Pass the wires through the gland. Terminate the drain wires inside the gland. Cable glands Remove the core p...

4-wire cable shielding Figure 2-4: Assemble the Gland1. Fold the shield or braid back over the clamping insert and 1/8 inch (3 mm) past the O-ring. 2. Install the gland body into the conduit opening on the core processor housing.3. Insert the wires through gland body and tighten the gland nut onto t...

• Twisted pair construction. • Applicable hazardous area requirements, if the core processor is installed in ahazardous area. • Wire gauge appropriate for the cable length between the core processor and thetransmitter. Wire gauge Table 2-1: Wire gauge Maximum cable length VDC 22 AWG (0.35 mm 2 ) 300...

CAUTION! Improper grounding could cause inaccurate measurements or flow meter failure. Failure tocomply with requirements for intrinsic safety in a hazardous area could result in an explosion. Note For hazardous area installations in Europe, refer to standard EN 60079-14 or national standards. If na...

Mounting multiple transmitters Figure 3-2: A B A. 0.33 in or greater (8.5 mm or greater) B. End bracket or end stop; 0.33 in (8.5 mm) minimum spacing 3.2 Mount the remote core processor This procedure is required only for remote core processor with remote transmitterinstallations. For mounting the r...

Components of a remote core processor Figure 3-3: A B A. Mounting bracketB. Cap screws 2. Attach the mounting bracket to an instrument pole or wall. 3.3 Prepare the 4-wire cable Important For user-supplied cable glands, the gland must be capable of terminating the drain wires. Note If you are instal...

• Twisted pair construction. • Applicable hazardous area requirements, if the core processor is installed in ahazardous area. • Wire gauge appropriate for the cable length between the core processor and thetransmitter. Wire gauge Table 3-1: Wire gauge Maximum cable length VDC 22 AWG (0.35 mm 2 ) 300...

Terminal connections for 4-wire cable Figure 3-7: RS-485B RS-485A VDC– VDC+ 3.5 Prepare the 9-wire cable Micro Motion supplies three types of 9-wire cable: jacketed, shielded, and armored. Thetype of cable you are using determines how you will prepare the cable. Perform the cable preparation procedu...

Preparing jacketed cable Figure 3-8: 1. Trim 4 inches (100 mm) of cable jacket.2. Remove the clear wrap and filler material.3. Remove the foil that is around the insulated wires and separate them. 4. Identify the drain wires in the cable and bring them together. Fan the other wires to the outside of...

Preparing shielded or armored cable Figure 3-9: 1. Without cutting the shield, strip 9 inches (225 mm) of cable jacket. 2. Strip 8 ½ inches (215 mm) of braided shield, so ½ inch (10 mm) of shield remains exposed. 3. Remove the foil shield that is between the braided shield and inner jacket. 4. Strip...

Bend radii of armored cable Table 3-5: Jacket material Outside diameter Minimum bend radii Static (no load) condition Under dynamic load PVC 0.525 inches (14 mm) 4–1/4 inches (108 mm) 8–1/2 inches (216 mm) Teflon FEP 0.340 inches (9 mm) 3–1/4 inches (83 mm) 6–3/8 inches (162 mm) Cable illustrations ...

3.6 Wire the remote core processor to the sensor using jacketed cable For ATEX installations, the jacketed cable must be installed inside a user-supplied sealedmetallic conduit that provides 360° termination shielding for the enclosed cable. CAUTION! Sensor wiring is intrinsically safe. To keep sens...

Sensor and remote core processor terminal designations (continued) Table 3-6: Wire color Sensor terminal Remote core processor terminal Function Orange 3 3 Temperature – Yellow 4 4 Temperature return Green 5 5 Left pickoff + Blue 6 6 Right pickoff + Violet 7 7 Temperature + Gray 8 8 Right pickoff – ...

3.7 Wire the remote core processor to the sensor using shielded or armored cable For ATEX installations, shielded or armored cable must be installed with cable glands, atboth the sensor and remote core processor ends. Cable glands that meet ATEXrequirements can be purchased from Micro Motion. Cable ...

3. Screw the nipple into the conduit opening for the 9-wire cable. Tighten it to one turnpast hand-tight. 4. Slide the compression ring, compression nut, and sealing nut onto the cable. Makesure the compression ring is oriented so the taper will mate properly with thetapered end of the nipple. 5. Pa...

3.8 Ground the flowmeter components In a remote core processor with remote sensor installation, the transmitter, remote coreprocessor, and sensor are all grounded separately. CAUTION! Improper grounding could cause inaccurate measurements or flow meter failure. Failure tocomply with requirements for...

4 Wiring the power supply 4.1 Wire the power supply Connect the power supply to terminals 11 and 12. Terminals 13 and 14 are used to jumperpower to another Model 1500 or Model 2500 transmitter. A maximum of five transmitterscan be jumpered together. Power terminals Figure 4-1: A B A. Primary power s...

5 I/O wiring for Model 1500 transmitters Topics covered in this chapter: • Basic analog wiring • HART/analog single loop wiring • HART multidrop wiring 5.1 Basic analog wiring Model 1500 basic analog wiring Figure 5-1: A A. Terminals 21 and 22 to mA receiving device; 820 Ω maximum loop resistance 5....

HART/analog single loop wiring Figure 5-2: A B A. 820 Ω maximum loop resistance B. HART-compatible host or controller 5.3 HART multidrop wiring Tip For optimum HART communication, single-point ground the output loop to an instrument-gradeground. HART multidrop wiring Figure 5-3: A B C D E F A. 250–6...

6 I/O wiring for Model 2500 transmitters Topics covered in this chapter: • mA/HART wiring • Frequency output wiring • Discrete output wiring • Discrete input wiring 6.1 mA/HART wiring 6.1.1 Basic analog wiring Model 2500 basic analog wiring Figure 6-1: A B A. Channel A – Terminals 21 and 22 to mA re...

6.2 Frequency output wiring 6.2.1 Internally powered frequency output wiring Internally powered frequency output wiring Figure 6-4: A B C A A. Counter B. Channel B – Terminals 23 and 24 C. Channel C – Terminals 31 and 32 I/O wiring for Model 2500 transmitters Installation Manual 39

6.2.2 Externally powered frequency output wiring Externally powered frequency output wiring Figure 6-7: A A B C D D E E A. Counter B. Channel B – Terminals 23 and 24 C. Channel C – Terminals 31 and 32 D. 3–30 VDC E. Pull-up reisistor CAUTION! Exceeding 30 VDC can damage the transmitter. Terminal cur...

Recommended pull-up resistor versus supply voltage Figure 6-8: 3600 3200 2800 2400 2000 1600 1200 800 0 5 10 15 20 25 30 Supply voltage (Volts) External pull-up resistor range (Ohms) 4000 4400 6.3 Discrete output wiring 6.3.1 Internally powered discrete output wiring I/O wiring for Model 2500 transm...

Internally powered discrete output wiring Figure 6-9: A A B C A. Discrete output receiving device B. Channel B (DO1) – Terminals 23 and 24 C. Channel C (DO2) – Terminals 31 and 32 Output voltage versus load resistance (Channel B) Figure 6-10: 16 14 12 10 8 6 4 2 0 0 500 1000 1500 2000 2500 Load resi...

Output voltage versus load resistance (Channel C) Figure 6-11: Open circuit output voltage = 15 VDC ±3% Load resistance (Ohms) High level output voltage (Volts) 6.3.2 Externally powered discrete output wiring Externally powered discrete output wiring Figure 6-12: A A B C D D A. 3–30 VDC B. Channel B...

CAUTION! Exceeding 30 VDC can damage the transmitter. Terminal current must be less than 500 mA. Recommended pull-up resistor versus supply voltage Figure 6-13: 3600 3200 2800 2400 2000 1600 1200 800 0 5 10 15 20 25 30 Supply voltage (Volts) External pull-up resistor range (Ohms) 4000 4400 6.4 Discr...

6.4.2 Externally powered discrete input wiring Externally powered discrete input wiring Figure 6-15: A B C A. PLC or other device B. VDC C. Direct DC input Power is supplied by either a PLC/other device or by direct DC input. Input voltage ranges for external power Table 6-1: VDC Range 3–30 High lev...

7 Specifications Topics covered in this chapter: • Electrical connections • Input/output signals • Environmental limits • Physical specifications 7.1 Electrical connections Electrical connections Table 7-1: Type Descriptions Input/output connections Three pairs of wiring terminals for transmitter ou...

7.4 Physical specifications Transmitter dimensions Figure 7-1: 3.90 (99) 4.41 (112) 1.78 (45) Specifications Installation Manual 49

Remote core processor dimensions Figure 7-2: 2 13/16 (71) 2 13/16 (71) 4 × Ø3/8 (10) 6 3/16 (158) 2 1/4 (57) 4 9/16 (116) wall mount 5 1/2 (140) To centerline of 2" instrument pole 2 1/2 (64) 1/2"–14 NPT or M20 × 1.5 2 3/8 (61) 1 11/16 (43) 3 5/16 (84) 3/4"–14 NPT 5 11/16 (144) Ø4 3/8 (1...

Index 4-wire cable preparation 7, 14 types 9, 16 user-supplied 9, 16 9-wire cable connecting to sensor 24, 28 preparation 18 types and usage 20–22 A AC power , See Power analog I/O wiring 35, 37 C cable 4-wire cable types 9, 16 4-wire preparation 7, 14 9-wire preparation 18 9-wire types and usage 20...