Emerson Process Management 2500 User Manual

Installation Manual

20001685, Rev DA

Micro Motion® Model 1500 and Model 2500

Installation Manual

April 2012

Safety messages

Safety messages are provided throughout this manual to protect personnel and equipment. Read each safety message carefully before proceeding to the next step.

Micro Motion customer service

Location Telephone number Email

U.S.A. 800-522-MASS (800-522-6277) (toll free) flow.support@emerson.com

Canada and Latin America +1 303-527-5200 (U.S.A.)

Asia Japan 3 5769-6803

All other locations +65 6777-8211 (Singapore)

Europe U.K. 0870 240 1978 (toll-free)

All other locations +31 (0) 318 495 555 (The Netherlands)

Contents

Chapter 1 Planning ...........................................................................................................................1

1.1 Flowmeter components ..................................................................................................................1

1.2 Outputs option identification ..........................................................................................................3

1.3 Environmental limits .......................................................................................................................4

1.4 Hazardous area classifications .........................................................................................................4

1.5 Power requirements ........................................................................................................................5

Chapter 2 Mounting and sensor wiring for 4-wire remote installations .............................................6

2.1 Mounting the transmitter to a DIN rail .............................................................................................6

2.2 Prepare the 4-wire cable ..................................................................................................................7

2.3 Wire the transmitter to the sensor ................................................................................................10

2.4 Ground the flowmeter components ..............................................................................................10

Chapter 3 Mounting and sensor wiring for remote core processor with remote sensor

installations ....................................................................................................................12

3.1 Mounting the transmitter to a DIN rail ...........................................................................................12

3.2 Mount the remote core processor .................................................................................................13

3.3 Prepare the 4-wire cable ................................................................................................................14

3.4 Wire the transmitter to the remote core processor .......................................................................17

3.5 Prepare the 9-wire cable ................................................................................................................18

3.6 Wire the remote core processor to the sensor using jacketed cable ..............................................24

3.7 Wire the remote core processor to the sensor using shielded or armored cable ............................28

3.8 Ground the flowmeter components ..............................................................................................33

Chapter 4 Wiring the power supply ................................................................................................34

4.1 Wire the power supply ..................................................................................................................34

Chapter 5 I/O wiring for Model 1500 transmitters ...........................................................................35

5.1 Basic analog wiring ........................................................................................................................35

5.2 HART/analog single loop wiring ....................................................................................................35

5.3 HART multidrop wiring ..................................................................................................................36

Chapter 6 I/O wiring for Model 2500 transmitters ...........................................................................37

6.1 mA/HART wiring ...........................................................................................................................37

6.2 Frequency output wiring ...............................................................................................................39

6.3 Discrete output wiring ..................................................................................................................42

6.4 Discrete input wiring .....................................................................................................................45

Chapter 7 Specifications .................................................................................................................47

7.1 Electrical connections ...................................................................................................................47

7.2 Input/output signals .....................................................................................................................47

7.3 Environmental limits .....................................................................................................................48

7.4 Physical specifications ...................................................................................................................49

Index .................................................................................................................................................51

Installation Manual i

Contents

ii Micro Motion® Model 1500 and Model 2500

1 Planning

Topics covered in this chapter:

Flowmeter components

•

Outputs option identification

•

Environmental limits

•

Hazardous area classifications

•

Power requirements

•

1.1 Flowmeter components

The transmitter is one component of a Micro Motion flowmeter. The other major component is the sensor.

A third component, called the core processor, provides additional memory and processing functions.

Planning

1.1.1 Installation types

Model 1500 and Model 2500 transmitters can be installed two different ways, only one of which applies to your specific installation.

• 4-wire remote – The transmitter is installed remotely from the sensor. You need to

mount the transmitter separately from the sensor, connect a 4-wire cable between the transmitter and sensor, and connect power and I/O wiring to the transmitter.

Installation Manual 1

Sensor

Core processor

Transmitter

4-wire cable

Planning

4-wire remote installationFigure 1-1:

• 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 4-wire cable connects the transmitter to the core processor, and a 9-wire cable connects the core processor to the sensor.

2 Micro Motion® Model 1500 and Model 2500

Core processor

Transmitter

4-wire cable

9-wire cable

Sensor

Junction box

Planning

Remote core processor with remote sensor installationFigure 1-2:

1.1.2 Maximum cable lengths

The maximum cable length between flowmeter components that are separately installed is determined by cable type. See Table 1-1.

Maximum cable lengthsTable 1-1:

Cable type Wire gauge Maximum length

Micro Motion 4-wire Not applicable 1000 ft (300 m)

Micro Motion 9-wire Not applicable 60 ft (20 m)

User-supplied 4-wire VDC 22 AWG (0.35 mm2) 300 ft (90 m)

VDC 20 AWG (0.5 mm2) 500 ft (150 m)

VDC 18 AWG (0.8 mm2) 1000 ft (300 m)

RS-485 22 AWG (0.35 mm2) or larger

1.2 Outputs option identification

You must know your transmitter's output option to correctly install the transmitter.

1000 ft (300 m)

Installation Manual 3

Transmitter type

Installation type

Output option

Planning

The transmitter's model number is on a tag on the side of the transmitter. You can use the model number to determine the transmitter's output option. The first four characters are the transmitter type. The fifth character is the installation type. The eighth character is the output option. The remaining characters are not relevant to transmitter installation.

Model code identificationFigure 1-3:

Installation types for Model 1500 and Model 2500 transmittersTable 1-2:

Letter Description

D 4-wire remote 35 mm DIN rail

B 4-wire remote 35 mm DIN rail with 9-wire remote core processor

1.3 Environmental limits

Environmental specificationsTable 1-3:

Type Value

Ambient temperature limits (Operating)

Ambient temperature limits (Storage)

Humidity limits 5 to 95% relative humidity, non-condensing at 140 °F (60 °C)

Vibration limits Meets IEC68.2.6, endurance sweep, 5 to 2000 Hz, 50 sweep cy-

EMI effects Complies with EMC Directive 2004/108/EC per EN 61326 Indus-

Ambient temperature effect (analog output option)

–40 to +131 °F (–40 to +55 °C)

–40 to +185 °F (–40 to +85 °C)

cles at 1.0 g

trial

Complies with NAMUR NE-21 (22.08.2007)

On mA output: ±0.005% of span per °C

1.4 Hazardous area classifications

If you plan to mount the transmitter in a hazardous area:

4 Micro Motion® Model 1500 and Model 2500

• Verify that the transmitter has the appropriate hazardous area approval. Each

= 19.2V + (R × L × 0.33A)

transmitter has a hazardous area approval tag attached to the transmitter housing.

• Ensure that any cable used between the transmitter and the sensor meets the

hazardous area requirements.

1.5 Power requirements

The transmitter must be connected to a DC voltage source.

• Minimum 19.2 to 28.8 VDC

• 6.3 watts

• Meets Installation (Overvoltage) Category II, Pollution Degree 2 requirements

Cable sizing formulaFigure 1-4:

A. M: minimum supply voltage B. R: cable resistance C. L: cable length

Planning

Typical power cable resistance at 68 °F (20 °C)Table 1-4:

Wire gauge Resistance

14 AWG

16 AWG

18 AWG

20 AWG

2.5 mm

1.5 mm

1.0 mm

0.75 mm

0.50 mm

0.0050 Ω/ft

0.0080 Ω/ft

0.0128 Ω/ft

0.0204 Ω/ft

0.0136 Ω/m

0.0228 Ω/m

0.0340 Ω/m

0.0460 Ω/m

0.0680 Ω/m

Installation Manual 5

Mounting and sensor wiring for 4-wire remote installations

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 designed to be mounted on a 35 mm DIN rail. The DIN rail must be grounded.

2.1.1

Mounting the transmitterFigure 2-1:

A. Spring clamp B. DIN rail C. Spring clamp release loop

Mounting multiple transmitters

If the ambient temperature is above 113 °F (45 °C) and you are mounting multiple transmitters, mount the transmitters so they are at least 0.33 in (8.5 mm) apart.

6 Micro Motion® Model 1500 and Model 2500

Mounting and sensor wiring for 4-wire remote installations

Mounting multiple transmittersFigure 2-2:

2.2

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

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 installing unshielded cable in continuous metallic conduit with 360º termination shielding, you only need to prepare the cable – you do not need to perform the shielding procedure.

Installation Manual 7

Mounting and sensor wiring for 4-wire remote installations

4-wire cable preparationFigure 2-3:

Remove the core processor

cover

Cable glands

Micro Motion

cable gland

Pass the wires through the gland nut and clamping insert.

Gland nut

1. Strip 4-1/2 inch (115 mm) of cable jacket.

2. Remove the clear wrap and filler material.

3. Strip all but 3/4 inch (19 mm) of shielding.

Clamping insert

NPT

Wrap the drain wires twice around the shield and cut off

Gland supplier

Gland type

the excess drain wires.

Cable layout

through the gland.

Terminate the drain

wires inside the

M20

1. Strip 4-1/4 inch (108 mm) of cable jacket.

2. Remove the clear wrap and filler material.

3. Strip all but 1/2 inch (12 mm) of shielding.

User-supplied

cable gland

Pass the wires

gland.

Metal conduit

Run conduit to

sensor

Lay cable in conduit

Done

(do not perform the

shielding procedure)

Drain wires wrapped around shield

Go to the shielding

procedure

8 Micro Motion® Model 1500 and Model 2500

Mounting and sensor wiring for 4-wire remote installations

4-wire cable shieldingFigure 2-4:

From the preparation

procedure

Micro Motion

cable gland

Braided

(armored cable)

Apply the Heat Shrink

1. Slide the shielded heat shrink over the drain wires. Ensure that the wires are completely covered.

2. Apply heat (250 °F or 120 °C) to shrink the tubing. Do not burn the cable.

3. Position the clamping insert so the interior end is flush with the braid of the heat shrink.

Assemble the Gland

1. 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 the gland body.

Cable shield

type

Shielded heat shrink

Foil

(shielded cable)

NPT

Gland supplier

Gland type M20

After heat applied

User-supplied

cable gland

Trim 7 mm from the shielded

heat shrink

Trim

Terminate the shield

and drain wires in the

Assemble the gland

according to vendor

gland

instructions

Shield folded back

Done

Gland body

2.2.1 4-wire cable types and usage

Micro Motion offers two types of 4-wire cable: shielded and armored. Both types contain shield drain wires.

The 4-wire cable supplied by Micro Motion consists of one pair of red and black 18 AWG (0.75 mm2) wires for the VDC connection, and one pair of white and green 22 AWG (0.35 mm2) wires for the RS-485 connection.

User-supplied 4-wire cable must meet the following requirements:

Installation Manual 9

RS-485B RS-485A

VDC– VDC+

Mounting and sensor wiring for 4-wire remote installations

• Twisted pair construction.

• Applicable hazardous area requirements, if the core processor is installed in a

hazardous area.

• Wire gauge appropriate for the cable length between the core processor and the

transmitter.

Wire gaugeTable 2-1:

Wire gauge Maximum cable length

VDC 22 AWG (0.35 mm2) 300 ft (90 m)

VDC 20 AWG (0.5 mm2) 500 ft (150 m)

VDC 18 AWG (0.8 mm2) 1000 ft (300 m)

RS-485 22 AWG (0.35 mm2) or larger 1000 ft (300 m)

2.3 Wire the transmitter to the sensor

1. Connect the cable to the core processor as described in the sensor documentation.

2. Connect the four wires from the core processor to terminals 1–4 on the transmitter.

Important

Do not ground the shield, braid, or drain wires at the transmitter.

Terminal connections for 4-wire cableFigure 2-5:

2.4 Ground the flowmeter components

In 4-wire remote installations, the transmitter and sensor are grounded separately.

10 Micro Motion® Model 1500 and Model 2500

Mounting and sensor wiring for 4-wire remote installations

CAUTION!

Improper grounding could cause inaccurate measurements or flow meter failure. Failure to comply 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 national standards are not in effect, adhere to the following guidelines for grounding:

• Use copper wire, 14 AWG (2.5 mm2) or larger wire size.

• Keep all ground leads as short as possible, less than 1 Ω impedance.

• Connect ground leads directly to earth, or follow plant standards.

1. Ground the sensor according to the instructions in the sensor documentation.

2. Ground the DIN rail.

The rail clip in the base of the transmitter housing grounds the transmitter to the DIN rail.

Installation Manual 11

Mounting and sensor wiring for remote core processor with remote sensor installations

3 Mounting and sensor wiring for

remote core processor with remote sensor installations

Topics covered in this chapter:

Mounting the transmitter to a DIN rail

•

Mount the remote core processor

•

Prepare the 4-wire cable

•

Wire the transmitter to the remote core processor

•

Prepare the 9-wire cable

•

Wire the remote core processor to the sensor using jacketed cable

•

Wire the remote core processor to the sensor using shielded or armored cable

•

Ground the flowmeter components

•

3.1 Mounting the transmitter to a DIN rail

The transmitter is designed to be mounted on a 35 mm DIN rail. The DIN rail must be grounded.

Mounting the transmitterFigure 3-1:

A. Spring clamp B. DIN rail C. Spring clamp release loop

3.1.1

Mounting multiple transmitters

If the ambient temperature is above 113 °F (45 °C) and you are mounting multiple transmitters, mount the transmitters so they are at least 0.33 in (8.5 mm) apart.

12 Micro Motion® Model 1500 and Model 2500

Mounting and sensor wiring for remote core processor with remote sensor installations

Mounting multiple transmittersFigure 3-2:

3.2

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

Mount the remote core processor

This procedure is required only for remote core processor with remote transmitter installations.

For mounting the remote core processor to a wall:

• Use four 5/16-inch diameter (or M8) bolts and nuts that can withstand the process

environment. Micro Motion does not supply bolts or nuts (appropriate bolts and nuts are available as an option).

• Ensure that the surface is flat and rigid, does not vibrate, or move excessively.

For mounting the remote core processor to an instrument pole:

• Use two 5/16-inch U-bolts for 2-inch pipe, and four matching nuts, that can

withstand the process environment. Micro Motion does not supply U-bolts or nuts.

• Ensure the instrument pole extends at least 12 inches (305 mm) from a rigid base,

and is no more than 2 inches (50.8 mm) in diameter.

1. If desired, reorient the core processor housing on the bracket.

a. Loosen each of the four cap screws (4 mm).

b. Rotate the bracket so that the core processor is oriented as desired.

c. Tighten the cap screws, torquing to 30 to 38 in-lbs (3 to 4 N-m).

Installation Manual 13

Mounting and sensor wiring for remote core processor with remote sensor installations

Components of a remote core processorFigure 3-3:

A. Mounting bracket B. 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 installing unshielded cable in continuous metallic conduit with 360º termination shielding, you only need to prepare the cable – you do not need to perform the shielding procedure.

14 Micro Motion® Model 1500 and Model 2500

+ 40 hidden pages