Emerson 1700 User Manual

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Micro Motion® Model 1700 and 2700

Installation Manual

20001700, Rev CC

April 2013

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

• Worldwide: flow.support@emerson.com

• Asia-Pacific: APflow.support@emerson.com

North and South America Europe and Middle East Asia Pacific

United States 800-522-6277 U.K. 0870 240 1978 Australia 800 158 727

Canada +1 303-527-5200 The Netherlands +31 (0) 318 495 555 New Zealand 099 128 804

Mexico +41 (0) 41 7686 111 France 0800 917 901 India 800 440 1468

Argentina +54 11 4837 7000 Germany 0800 182 5347 Pakistan 888 550 2682

Brazil +55 15 3238 3677 Italy 8008 77334 China +86 21 2892 9000

Venezuela +58 26 1731 3446 Central & Eastern +41 (0) 41 7686 111 Japan +81 3 5769 6803

Russia/CIS +7 495 981 9811 South Korea +82 2 3438 4600

Egypt 0800 000 0015 Singapore +65 6 777 8211

Oman 800 70101 Thailand 001 800 441 6426

Qatar 431 0044 Malaysia 800 814 008

Kuwait 663 299 01

South Africa 800 991 390

Saudia Arabia 800 844 9564

UAE 800 0444 0684

Contents

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

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

1.2 Outputs option identification .......................................................................................................5

1.3 Environmental limits .....................................................................................................................7

1.4 Hazardous area classifications .......................................................................................................7

1.5 Power requirements .....................................................................................................................7

1.6 Orientation ...................................................................................................................................8

1.7 Accessibility for maintenance .......................................................................................................9

Chapter 2 Mounting and sensor wiring for integral installations ...................................................11

2.1 Mounting and sensor wiring .......................................................................................................11

2.2 Rotate the transmitter on the sensor (optional) ..........................................................................11

2.3 Rotate the user interface on the transmitter (optional) ...............................................................12

2.4 Ground the flowmeter components ...........................................................................................14

Chapter 3 Mounting and sensor wiring for 4-wire remote installations .........................................15

3.1 Mounting options .......................................................................................................................15

3.2 Prepare the 4-wire cable .............................................................................................................19

3.3 Wire the transmitter to the sensor ..............................................................................................22

3.4 Rotate the user interface on the transmitter (optional) ...............................................................24

3.5 Ground the flowmeter components ...........................................................................................26

Chapter 4 Mounting and sensor wiring for 9-wire remote installations .........................................29

4.1 Mounting options .......................................................................................................................29

4.2 Prepare the 9-wire cable .............................................................................................................31

4.3 Wire the transmitter to the sensor using jacketed cable ..............................................................37

4.4 Wire the transmitter to the sensor using shielded or armored cable ...........................................40

4.5 Rotate the user interface on the transmitter (optional) ...............................................................45

4.6 Ground the flowmeter components ...........................................................................................47

Chapter 5 Mounting and sensor wiring for remote core processor with remote sensor

installations ..................................................................................................................49

5.1 Mounting options .......................................................................................................................49

5.2 Mount the remote core processor ...............................................................................................53

5.3 Prepare the 4-wire cable .............................................................................................................54

5.4 Wire the transmitter to the remote core processor .....................................................................57

5.5 Prepare the 9-wire cable .............................................................................................................59

5.6 Wire the remote core processor to the sensor using jacketed cable ............................................65

5.7 Wire the remote core processor to the sensor using shielded or armored cable ..........................69

5.8 Rotate the user interface on the transmitter (optional) ...............................................................74

5.9 Ground the flowmeter components ...........................................................................................75

Chapter 6 Wiring the power supply ...............................................................................................77

6.1 Wire the power supply ................................................................................................................77

Chapter 7 I/O wiring for Model 1700 and Model 2700 transmitters with analog outputs ................79

7.1 Basic analog wiring .....................................................................................................................79

7.2 HART/analog single loop wiring ..................................................................................................80

7.3 RS-485 point-to-point wiring ......................................................................................................81

7.4 HART multidrop wiring ...............................................................................................................81

Installation Manual i

Contents

Chapter 8 I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe

outputs .........................................................................................................................83

8.1 Safe area mA output wiring .........................................................................................................83

8.2 Safe area HART/analog single-loop wiring ...................................................................................84

8.3 Safe area HART multidrop wiring ................................................................................................ 85

8.4 Safe area frequency output/discrete output wiring .....................................................................86

8.5 Hazardous area wiring ................................................................................................................ 87

Chapter 9 I/O wiring for Model 2700 transmitters with configurable input/outputs ......................95

9.1 Channel configuration ................................................................................................................95

9.2 mA/HART wiring .........................................................................................................................96

9.3 Frequency output wiring .............................................................................................................98

9.4 Discrete output wiring ..............................................................................................................103

9.5 Discrete input wiring ................................................................................................................107

Chapter 10 Specifications ..............................................................................................................109

10.1 Electrical connections ...............................................................................................................109

10.2 Input/output signals .................................................................................................................110

10.3 Local display .............................................................................................................................111

10.4 Environmental limits .................................................................................................................113

10.5 Physical specifications ..............................................................................................................113

Index ................................................................................................................................................117

ii Micro Motion® Model 1700 and 2700

1 Planning

Topics covered in this chapter:

Flowmeter components

•

Outputs option identification

•

Environmental limits

•

Hazardous area classifications

•

Power requirements

•

Orientation

•

Accessibility for maintenance

•

1.1 Flowmeter components

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

Planning

1.1.1

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

Installation types

Model 1700 and Model 2700 transmitters can be installed five different ways, only one of which applies to your specific installation.

• Integral – The transmitter is mounted directly on the sensor. You do not need to

install the transmitter separately, but you will need to connect power supply and I/O wiring.

Installation Manual 1

Transmitter

Sensor

Planning

Integral installationFigure 1-1:

• High-temperature flexible conduit – Some high-temperature meters come

preinstalled with a flexible conduit between the sensor and the transmitter. You do not have to connect any wires between the transmitter and the sensor, but you do need to mount the electronics separately and connect power and I/O wiring to the transmitter.

High-temperature flexible conduit installationFigure 1-2:

High-temperature flexible conduit installations use the same installation instructions as 4-wire remote installations, except that the distance between the sensor and the electronics is limited by the length of the flexible conduit.

• 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.

2 Micro Motion® Model 1700 and 2700

Sensor

Core processor

Transmitter

4-wire cable

Sensor

Core processor

Transmitter

4-wire cable

Planning

4-wire remote installation – painted aluminum housingFigure 1-3:

4-wire remote installation – stainless steel housingFigure 1-4:

• 9-wire remote – The transmitter and core processor are combined in a single unit

that is installed remotely from the sensor. You need to mount the transmitter/core processor assembly separately from the sensor, connect a 9-wire cable between the transmitter/core processor, and connect power and I/O wiring to the transmitter.

Installation Manual 3

Transmitter

Junction box

Sensor

9-wire cable

Planning

9-wire remote installation typeFigure 1-5:

• 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.

4 Micro Motion® Model 1700 and 2700

Core processor

Transmitter

4-wire cable

9-wire cable

Sensor

Junction box

Planning

Remote core processor with remote sensor installation typeFigure 1-6:

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 5

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 1-7:

Installation types for Model 1700 and Model 2700 transmittersTable 1-2:

Letter Description

R Remote mount 4-wire

I Integral

C Remote mount 9-wire (painted aluminum housing)

B Remote core processor with remote transmitter

M Remote mount 4-wire (stainless steel housing)

P Remote mount 9-wire (stainless steel housing)

Output options for Model 1700 and Model 2700 transmittersTable 1-3:

Letter Description

A Analog outputs – one mA, one frequency, one RS-485

B Configurable I/O channels (default configuration of two mA, one frequency)

C Configurable I/O channels (custom configuration )

D Intrinsically safe analog outputs – two mA, one frequency/discrete

E Intrinsically safe Foundation fieldbus H1 with standard function blocks

G PROFIBUS-PA

N Non-incendive Foundation fieldbus H1 with standard function blcoks

2 WirelessHART – one mA, one frequency, one RS-485

3 WirelessHART – one mA, two configurable I/O channels (custom configura-

tion)

4 Intrinsically safe WirelessHART – two mA, one frequency

6 Micro Motion® Model 1700 and 2700

Output options for Model 1500 and Model 2500 transmittersTable 1-4:

Letter Description

A Analog outputs – one mA, one frequency, one RS-485

B Configurable I/O channels (default configuration of two mA, one frequency)

C Configurable I/O channels (custom configuration )

1.3 Environmental limits

Environmental specificationsTable 1-5:

Type Value

Ambient temperature limits –40 to +140 °F (–40 to +60 °C)

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-

cles at 1.0 g

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

trial

Complies with NAMUR NE-21 (22.08.2007)

Ambient temperature effect on analog outputs

On mA output: ±0.005% of span per °C

Planning

1.4

1.5

If possible, install the transmitter in a location that will prevent direct exposure to sunlight. The environmental limits for the transmitter may be further restricted by hazardous area approvals.

Hazardous area classifications

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

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

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.

Power requirements

Self-switching AC/DC input, automatically recognizes supply voltage

• 85 to 265 VAC, 50/60 Hz, 6 watts typical, 11 watts maximum

Installation Manual 7

= 18V + (R × L × 0.5A)

Planning

• 18 to 100 VDC, 6 watts typical, 11 watts maximum

• Complies with low voltage directive 2006/95/EC per EN 61010-1 (IEC 61010-1) with

amendment 2, and Installation (Overvoltage) Category II, Pollution Degree 2

Note

For DC power:

• Power requirements assume a single transmitter per cable.

• At startup, the power source must provide a minimum of 1.5 amps of short-term current per

transmitter.

• Length and conductor diameter of the power cable must be sized to provide 18 VDC

minimum at the power terminals, at a load current of 0.5 amps.

Cable sizing formulaFigure 1-8:

• M: minimum supply voltage

• R: cable resistance

• L: cable length

Typical power cable resistance at 68 °F (20 °C)Table 1-6:

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

1.6 Orientation

You can mount the transmitter in any orientation as long as the conduit openings do not point upward.

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

8 Micro Motion® Model 1700 and 2700

CAUTION!

Upward-facing conduit openings risk condensation moisture entering the transmitter housing, which could damage the transmitter.

1.7 Accessibility for maintenance

Mount the flowmeter in a location and orientation that satisfies the following conditions:

• Allows sufficient clearance to open the transmitter housing cover. Micro Motion

recommends 8–10 inches (200–250 mm) clearance at the rear of the transmitter.

• Provides clear access for installing cabling to the transmitter.

Planning

Installation Manual 9

Planning

10 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for integral installations

2 Mounting and sensor wiring for

integral installations

Topics covered in this chapter:

Mounting and sensor wiring

•

Rotate the transmitter on the sensor (optional)

•

Rotate the user interface on the transmitter (optional)

•

Ground the flowmeter components

•

2.1 Mounting and sensor wiring

There are no separate mounting requirements for integral transmitters, and no need to connect wiring between the transmitter and the sensor.

2.2 Rotate the transmitter on the sensor (optional)

In integral installations, you can rotate the transmitter on the sensor up to 360º in 90º increments.

Components of an integral transmitterFigure 2-1:

A. Cap screws B. Transmitter C. Transition ring D. Sensor

Installation Manual 11

Mounting and sensor wiring for integral installations

1. Loosen each of the four cap screws (4 mm) that fasten the transmitter to the base.

2. Rotate the transmitter counter-clockwise so that the cap screws are in the unlocked position.

3. Gently lift the transmitter straight up, disengaging it from the cap screws.

Important

Do not disconnect or damage the wires that connect the transmitter to the core processor.

4. Rotate the transmitter to the desired orientation.

Important

Do not pinch or stress the wires.

The slots on the transition ring should be aligned with the cap screws.

5. Gently lower the transmitter onto the base, inserting the cap screws into the slots.

6. Rotate the transmitter clockwise so that the cap screws are in the locked position.

7. Tighten the cap screws, torquing to 20 to 30 in-lbs (2.3 to 3.4 N-m).

2.3 Rotate the user interface on the transmitter (optional)

The user interface on the transmitter electronics module can be rotated 90º or 180° from the original position.

12 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for integral installations

Display componentsFigure 2-2:

A. Transmitter housing B. Sub-bezel C. Display module D. Display screws E. End-cap clamp F. Cap screw G. Display cover

1. Shut off power to the unit.

2. Remove the end-cap clamp by removing the cap screw.

3. Turn the display cover counterclockwise to remove it from the main enclosure.

4. Carefully loosen (and remove if necessary) the semicaptive display screws while

holding the display module in place.

5. Carefully pull the display module out of the main enclosure until the sub-bezel pin

terminals are disengaged from the display module.

Note

If the display pins come out of the board stack with the display module, remove the pins and reinstall them.

6. Rotate the display module to the desired position.

7. Insert the sub-bezel pin terminals into the display module pin holes to secure the

display in its new position.

8. If you have removed the display screws, line them up with the matching holes on the

sub-bezel, then reinsert and tighten them.

9. Place the display cover onto the main enclosure.

Installation Manual 13

Mounting and sensor wiring for integral installations

10. Turn the display cover clockwise until it is snug.

11. Replace the end-cap clamp by reinserting and tightening the cap screw.

12. Restore power to the transmitter.

2.4 Ground the flowmeter components

In an integral installation, all components are grounded together.

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.

Ground via the piping, if possible (see sensor documentation). If grounding via the piping is not possible, ground according to applicable local standards using the transmitter’s internal or external ground screw.

Transmitter internal grounding screwFigure 2-3:

Transmitter external grounding screwFigure 2-4:

14 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 4-wire remote installations

3 Mounting and sensor wiring for 4-

wire remote installations

Topics covered in this chapter:

Mounting options

•

Prepare the 4-wire cable

•

Wire the transmitter to the sensor

•

Rotate the user interface on the transmitter (optional)

•

Ground the flowmeter components

•

3.1 Mounting options

3.1.1

There are two options available for mounting the transmitter:

• Mount the transmitter to a wall or flat surface.

• Mount the transmitter to an instrument pole.

Mount the transmitter 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.

1. If desired, re-orient the transmitter on the mounting bracket.

a. Remove the junction end-cap from the junction housing.

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

c. Rotate the bracket so that the transmitter is oriented as desired.

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

e. Replace the junction end-cap.

Installation Manual 15

Mounting and sensor wiring for 4-wire remote installations

Figure 3-1:

Components of 4-wire remote mount transmitter (aluminum housing)

A. End cap B. Cap screws C. Transmitter D. Mounting bracket

16 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 4-wire remote installations

Figure 3-2:

Components of a 4-wire remote mount transmitter (stainless steel housing)

A. End cap B. Cap screws C. Transmitter D. Mounting bracket

2. Attach the mounting bracket to the wall.

3.1.2

Mount the transmitter 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 (appropriate bolts and nuts are available as an option).

• 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, re-orient the transmitter on the mounting bracket.

a. Remove the junction end-cap from the junction housing.

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

c. Rotate the bracket so that the transmitter is oriented as desired.

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

e. Replace the junction end-cap.

Installation Manual 17

Mounting and sensor wiring for 4-wire remote installations

Figure 3-3:

Components of 4-wire remote mount transmitter (aluminum housing)

A. End cap B. Cap screws C. Transmitter D. Mounting bracket

18 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 4-wire remote installations

Figure 3-4:

Components of a 4-wire remote mount transmitter (stainless steel housing)

A. End cap B. Cap screws C. Transmitter D. Mounting bracket

2. Attach the mounting bracket to an instrument pole.

3.2

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 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 19

Mounting and sensor wiring for 4-wire remote installations

4-wire cable preparationFigure 3-5:

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

20 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 4-wire remote installations

4-wire cable shieldingFigure 3-6:

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

3.2.1 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 21

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 3-1:

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)

3.3 Wire the transmitter to the sensor

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

2. Feed the wires from the sensor through the conduit opening.

3. Connect wires to the appropriate terminals on the mating connector.

Important

Never ground the shield, braid, or drain wire(s) at the transmitter.

Tip

You may find it easier to unplug the mating connector to connect the wires. If you do so, remember to firmly reseat the mating connector and tighten the mating connector screws so that the mating connector cannot accidentally come loose.

22 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 4-wire remote installations

Wiring path for transmitters with aluminum housingFigure 3-7:

A. 4-wire cable B. Mating connector

Installation Manual 23

VDC+

VDC–

RS-485A

RS-485B

Mounting and sensor wiring for 4-wire remote installations

Wiring path for transmitters with stainless steel housingFigure 3-8:

3.4

A. 4-wire cable B. Mating connector

Rotate the user interface on the transmitter (optional)

The user interface on the transmitter electronics module can be rotated 90º or 180° from the original position.

24 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 4-wire remote installations

Display componentsFigure 3-9:

A. Transmitter housing B. Sub-bezel C. Display module D. Display screws E. End-cap clamp F. Cap screw G. Display cover

1. Shut off power to the unit.

2. Remove the end-cap clamp by removing the cap screw.

3. Turn the display cover counterclockwise to remove it from the main enclosure.

4. Carefully loosen (and remove if necessary) the semicaptive display screws while holding the display module in place.

5. Carefully pull the display module out of the main enclosure until the sub-bezel pin terminals are disengaged from the display module.

Note

If the display pins come out of the board stack with the display module, remove the pins and reinstall them.

6. Rotate the display module to the desired position.

7. Insert the sub-bezel pin terminals into the display module pin holes to secure the display in its new position.

8. If you have removed the display screws, line them up with the matching holes on the sub-bezel, then reinsert and tighten them.

9. Place the display cover onto the main enclosure.

Installation Manual 25

Mounting and sensor wiring for 4-wire remote installations

10. Turn the display cover clockwise until it is snug.

11. Replace the end-cap clamp by reinserting and tightening the cap screw.

12. Restore power to the transmitter.

3.5 Ground the flowmeter components

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

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 transmitter according to applicable local standards, using the transmitter’s internal or external ground screw.

Transmitter internal grounding screwFigure 3-10:

26 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 4-wire remote installations

Transmitter external grounding screwFigure 3-11:

Installation Manual 27

Mounting and sensor wiring for 4-wire remote installations

28 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 9-wire remote installations

4 Mounting and sensor wiring for 9-

wire remote installations

Topics covered in this chapter:

Mounting options

•

Prepare the 9-wire cable

•

Wire the transmitter to the sensor using jacketed cable

•

Wire the transmitter to the sensor using shielded or armored cable

•

Rotate the user interface on the transmitter (optional)

•

Ground the flowmeter components

•

4.1 Mounting options

There are two options available for mounting the transmitter:

• Mount the transmitter to a wall or flat surface.

• Mount the transmitter to an instrument pole.

4.1.1

Mount the transmitter 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.

1. If desired, re-orient the transmitter on the mounting bracket.

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

b. Rotate the bracket so that the transmitter is oriented as desired.

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

Installation Manual 29

Mounting and sensor wiring for 9-wire remote installations

Components of 9-wire remote mount transmitterFigure 4-1:

A. Mounting bracket B. Cap screws C. Transmitter

4.1.2

2. Attach the mounting bracket to the wall.

Mount the transmitter 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 (appropriate bolts and nuts are available as an option).

• 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, re-orient the transmitter on the mounting bracket.

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

b. Rotate the bracket so that the transmitter is oriented as desired.

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

30 Micro Motion® Model 1700 and 2700

Components of 9-wire remote mount transmitterFigure 4-2:

A. Mounting bracket B. Cap screws C. Transmitter

Mounting and sensor wiring for 9-wire remote installations

4.2

2. Attach the mounting bracket to an instrument pole.

Prepare the 9-wire cable

Micro Motion supplies three types of 9-wire cable: jacketed, shielded, and armored. The type of cable you are using determines how you will prepare the cable.

Perform the cable preparation procedure appropriate for your cable type.

Installation Manual 31

Mounting and sensor wiring for 9-wire remote installations

Preparing jacketed cableFigure 4-3:

Prepare jacketed

cable at the sensor

end

1. Trim 4 ½ inches (115 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.

Trim cable jacket

4. Identify the drain wires in the cable. Clip off each drain wire as close as possible to the cable jacket.

Drain wires clipped

5. Slide the 1 ½ inch (40 mm) heat-shrink tubing over the wires and cable jacket. The tubing should completely cover the clipped ends of the drain wires.

Prepare jacketed

cable at the

transmitter end

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.

Trim cable jacket

4. Identify the drain wires in the cable and bring them together. Fan the other wires to the outside of the cable. Twist the drain wires together.

5. Slide the 3-inch (75 mm) heat-shrink tubing over the drain wires. Push the tubing as close as possible to the cable jacket.

6. Slide the 1 ½ inch (40 mm) long heat-shrink tubing over the cable jacket. The tubing should completely cover all portions of the drain wires that remain exposed next to the cable jacket.

Heat-shrink

tubing

6. Without burning the cable, apply heat to shrink all tubing. Recommended temperature is 250 °F (121 °C).

7. Allow the cable to cool, then strip ¼ inch (5 mm) of insulation from each wire.

Heat-shrink tubing over

cable jacket

Heat-shrink tubing over drain

wires

7. Without burning the cable, apply heat to shrink all tubing. Recommended temperature is 250 °F (121 °C).

8. Allow the cable to cool, then strip ¼ inch (5 mm) of insulation from each wire.

32 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 9-wire remote installations

Preparing shielded or armored cableFigure 4-4:

Prepare shielded or

armored cable at the

sensor end

1. Without cutting the shield, strip 7 inches (175 mm) of outer jacket.

2. Strip 6 ½ inches (165 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 4 ½ inches (115 mm) of inner jacket.

Trim outer jacket

Trim braided shield

Trim inner jacket

5. Remove the clear wrap and filler material.

6. Remove the foil that is around the insulated wires and separate them.

7. Identify the drain wires in the cable. Clip each drain wire as close as possible to the cable jacket.

Drain wires clipped

8. Slide the 1 ½ inch (40 mm) long heat-shrink tubing over the cable jacket. The tubing should completely cover the clipped ends of the drain wires.

Prepare shielded or

armored cable at the

transmitter end

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 4 inches (100 mm) of inner jacket.

Trim outer jacket

Trim braided shield

Trim inner jacket

5. Remove the clear wrap and filler material.

6. Remove the foil that is around the insulated wires and separate them.

7. Identify the drain wires in the cable and bring them together. Fan the other wires to the outside of the cable. Twist the drain wires together.

8. Slide the 3-inch (75 mm) long heat-shrink tubing over the drain wires. Push the tubing as close as possible to the inner jacket.

9. Slide the 1 ½ inch (40 mm) long heat-shrink tubing over the cable jacket. The tubing should completely cover all portions of the drain wires that remain exposed next to the cable jacket.

Heat-shrink tubing

9. Without burning the cable, apply heat to shrink all tubing. Recommended temperature is 250 °F (121 °C).

10. Allow the cable to cool, then strip ¼ inch (5 mm) of insulation from each wire.

Heat-shrink tubing over cable

Heat-shrink tubing over drain wires

10. Without burning the cable, apply heat to shrink all tubing. Recommended temperature is 250 °F (121 °C).

11. Allow the cable to cool, then strip ¼ inch (5 mm) of insulation from each wire.

jacket

4.2.1 Micro Motion 9-wire cable types and usage

Installation Manual 33

Mounting and sensor wiring for 9-wire remote installations

Cable types

Micro Motion supplies three types of 9-wire cable: jacketed, shielded, and armored. Note the following differences between the cable types:

• Armored cable provides mechanical protection for the cable wires.

• Jacketed cable has a smaller bend radius than shielded or armored cable.

• If ATEX compliance is required, the different cable types have different installation

requirements.

Cable jacket types

All cable types can be ordered with a PVC jacket or Teflon® FEP jacket. Teflon FEP is required for the following installation types:

• All installations that include a T-series sensor.

• All installations with a cable length of 250 ft (75 m) or greater, a nominal flow less

than 20 percent, and ambient temperature changes greater than +68 °F (+20 °C).

Cable jacket material and temperature rangesTable 4-1:

Handling temperature Operating temperature

Cable jacket material Low limit High limit Low limit High limit

PVC –4 °F (–20 °C) +194 °F (+90 °C) –40 °F (–40 °C) +221 °F (+105 °C)

Teflon FEP –40 °F (–40 °C) +194 °F (+90 °C) –76 °F (–60 °C) +302 °F (+150 °C)

Cable bend radii

Bend radii of jacketed cableTable 4-2:

Jacket material Outside diameter Minimum bend radii

Static (no load) condition Under dynamic load

PVC 0.415 inches (10 mm) 3–1/8 inches (80 mm) 6–1/4 inches (159 mm)

Teflon FEP 0.340 inches (9 mm) 2–5/8 inches (67 mm) 5–1/8 inches (131 mm)

Bend radii of shielded cableTable 4-3:

Jacket material Outside diameter Minimum bend radii

Static (no load) condition Under dynamic load

PVC 0.2 inches (14 mm) 4–1/4 inches (108 mm) 8–1/2 inches (216 mm)

Teflon FEP 0.425 inches (11 mm) 3–1/4 inches (83 mm) 6–3/8 inches (162 mm)

34 Micro Motion® Model 1700 and 2700

C (4)

B (4)

D (5)

Mounting and sensor wiring for 9-wire remote installations

Bend radii of armored cableTable 4-4:

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

Cross-section view of jacketed cableFigure 4-5:

A. Outer jacket B. Drain wire (4 total) C. Foil shield (4 total) D. Filler (5 total)

Installation Manual 35

C (1)

E (4)

F (4)

G (5)

C (1)

E (4)

F (4)

G (5)

Mounting and sensor wiring for 9-wire remote installations

Cross-section view of shielded cableFigure 4-6:

A. Outer jacket B. Tin-plated copper braided shield C. Foil shield (1 total) D. Inner jacket E. Drain wire (4 total) F. Foil shield (4 total) G. Filler (5 total)

Cross-section view of armored cableFigure 4-7:

A. Outer jacket B. Stainless steel braided shield C. Foil shield (1 total) D. Inner jacket E. Drain wire (4 total) F. Foil shield (4 total) G. Filler (5 total)

36 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 9-wire remote installations

4.3 Wire the transmitter to the sensor using jacketed cable

For ATEX installations, the jacketed cable must be installed inside a user-supplied sealed metallic conduit that provides 360° termination shielding for the enclosed cable.

CAUTION!

Sensor wiring is intrinsically safe. To keep sensor wiring intrinsically safe, keep the sensor wiring separated from power supply wiring and output wiring.

CAUTION!

Keep cable away from devices such as transformers, motors, and power lines, which produce large magnetic fields. Improper installation of cable, cable gland, or conduit could cause inaccurate measurements or flow meter failure.

CAUTION!

Improperly sealed housings can expose electronics to moisture, which can cause measurement error or flowmeter failure. Install drip legs in conduit and cable, if necessary. Inspect and grease all gaskets and O-rings. Fully close and tighten all housing covers and conduit openings.

1. Run the cable through the conduit. Do not install 9-wire cable and power cable in

the same conduit.

2. To prevent conduit connectors from seizing in the threads of the conduit openings,

apply a conductive anti-galling compound to the threads, or wrap threads with PTFE tape two to three layers deep.

Wrap the tape in the opposite direction that the male threads will turn when inserted into the female conduit opening.

3. Remove the junction box cover and core processor end-cap.

4. At both the sensor and transmitter, do the following:

a. Connect a male conduit connector and waterproof seal to the conduit opening

for 9-wire.

b. Pass the cable through the conduit opening for the 9-wire cable.

c. Insert the stripped end of each wire into the corresponding terminal at the

sensor and transmitter ends, matching by color (see Table 4-5). No bare wires should remain exposed.

Note

For ELITE®, H-Series, T-Series, and some F-Series sensors, match the wire to the terminal by the color identified on the inside of the sensor junction box cover.

Installation Manual 37

Mounting and sensor wiring for 9-wire remote installations

Sensor and transmitter terminal designationsTable 4-5:

Wire color Sensor terminal Transmitter terminal Function

Black No connection 0 Drain wires

Brown 1 1 Drive +

Red 2 2 Drive –

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 –

White 9 9 Left pickoff –

d. Tighten the screws to hold the wire in place.

e. Ensure integrity of gaskets, grease all O-rings, then replace the junction box and

transmitter housing covers and tighten all screws, as required.

4.3.1 Sensor and transmitter terminals

ELITE, H-Series, T-Series, and some F-Series sensor terminalsFigure 4-8:

A. Violet B. Yellow C. Orange D. Brown E. White F. Green G. Red H. Gray I. Blue

38 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 9-wire remote installations

F-Series, Model D, and Model DL sensor terminalsFigure 4-9:

Installation Manual 39

Mounting and sensor wiring for 9-wire remote installations

Model 2700 transmitter terminalsFigure 4-10:

A. Brown B. Violet C. Yellow D. Orange E. Gray F. Blue G. White H. Green I. Red J. Mounting screw K. Ground screw (black)

4.4

Wire the transmitter to the sensor using shielded or armored cable

For ATEX installations, shielded or armored cable must be installed with cable glands, at both the sensor and transmitter ends. Cable glands that meet ATEX requirements can be purchased from Micro Motion. Cable glands from other vendors can be used.

CAUTION!

Install cable glands in the 9-wire conduit opening in the transmitter housing and the sensor junction box. Ensure that the cable drain wires and shields do not make contact with the junction box or the transmitter housing. Improper installation of cable or cable glands could cause inaccurate measurements or flow meter failure.

40 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 9-wire remote installations

CAUTION!

1. Identify the components of the cable gland and cable (see Figure 4-11).

Cable gland and cable (exploded view)Figure 4-11:

A. Cable B. Sealing nut C. Compression nut D. Brass compression ring E. Braided shield F. Cable G. Tape or heat-shrink tubing H. Clamp seat (shown as integral to nipple) I. Nipple

2. Unscrew the nipple from the compression nut.

3. Screw the nipple into the conduit opening for the 9-wire cable. Tighten it to one turn

past hand-tight.

4. Slide the compression ring, compression nut, and sealing nut onto the cable. Make

sure the compression ring is oriented so the taper will mate properly with the tapered end of the nipple.

5. Pass the cable end through the nipple so the braided shield slides over the tapered

end of the nipple.

6. Slide the compression ring over the braided shield.

7. Screw the compression nut onto the nipple. Tighten the sealing nut and

compression nut by hand to ensure that the compression ring traps the braided shield.

20–25 foot-pounds (27–34 N-m) of torque. See Figure 4-12 for an illustration of a

8. Use a 25-mm (1-inch) wrench to tighten the sealing nut and compression nut to

complete cable gland assembly.

Installation Manual 41

E F

Mounting and sensor wiring for 9-wire remote installations

Cross-section of assembled cable gland with cableFigure 4-12:

A. Cable B. Sealing nut C. Seal D. Compression nut E. Braided shield F. Brass compression ring G. Nipple

9. Remove the junction box cover and core processor end-cap.

10. At both the sensor and transmitter, connect the cable according to the following

procedure:

a. Insert the stripped end of each wire into the corresponding terminal at the

sensor and transmitter ends, matching by color (see Table 4-6). No bare wires should remain exposed.

Note

For ELITE®, H-Series, T-Series, and some F-Series sensors, match the wire to the terminal by the color identified on the inside of the sensor junction box cover.

Sensor and transmitter terminal designationsTable 4-6:

Wire color Sensor terminal Transmitter terminal Function

Black No connection 0 Drain wires

Brown 1 1 Drive +

Red 2 2 Drive –

Orange 3 3 Temperature –

Yellow 4 4 Temperature return

Green 5 5 Left pickoff +

Blue 6 6 Right pickoff +

Violet 7 7 Temperature +

42 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 9-wire remote installations

Sensor and transmitter terminal designations (continued)Table 4-6:

Wire color Sensor terminal Transmitter terminal Function

Gray 8 8 Right pickoff –

White 9 9 Left pickoff –

b. Tighten the screws to hold the wires in place.

c. Ensure integrity of gaskets, grease all O-rings, then replace the junction box and

transmitter housing covers and tighten all screws, as required.

4.4.1 Sensor and transmitter terminals

ELITE, H-Series, T-Series, and some F-Series sensor terminalsFigure 4-13:

A. Violet B. Yellow C. Orange D. Brown E. White F. Green G. Red H. Gray I. Blue

Installation Manual 43

Mounting and sensor wiring for 9-wire remote installations

F-Series, Model D, and Model DL sensor terminalsFigure 4-14:

44 Micro Motion® Model 1700 and 2700

Model 2700 transmitter terminalsFigure 4-15:

A. Brown B. Violet C. Yellow D. Orange E. Gray F. Blue G. White H. Green I. Red J. Mounting screw K. Ground screw (black)

Mounting and sensor wiring for 9-wire remote installations

4.5

Rotate the user interface on the transmitter (optional)

The user interface on the transmitter electronics module can be rotated 90º or 180° from the original position.

Installation Manual 45

Mounting and sensor wiring for 9-wire remote installations

Display componentsFigure 4-16:

A. Transmitter housing B. Sub-bezel C. Display module D. Display screws E. End-cap clamp F. Cap screw G. Display cover

1. Shut off power to the unit.

2. Remove the end-cap clamp by removing the cap screw.

3. Turn the display cover counterclockwise to remove it from the main enclosure.

4. Carefully loosen (and remove if necessary) the semicaptive display screws while

holding the display module in place.

5. Carefully pull the display module out of the main enclosure until the sub-bezel pin

terminals are disengaged from the display module.

Note

If the display pins come out of the board stack with the display module, remove the pins and reinstall them.

6. Rotate the display module to the desired position.

7. Insert the sub-bezel pin terminals into the display module pin holes to secure the

display in its new position.

8. If you have removed the display screws, line them up with the matching holes on the

sub-bezel, then reinsert and tighten them.

9. Place the display cover onto the main enclosure.

46 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for 9-wire remote installations

10. Turn the display cover clockwise until it is snug.

11. Replace the end-cap clamp by reinserting and tightening the cap screw.

12. Restore power to the transmitter.

4.6 Ground the flowmeter components

In 9-wire remote installations, the transmitter/core processor assembly and sensor are grounded separately.

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 transmitter/core processor assembly according to applicable local

standards, using the transmitter’s internal ground screw or the transmitter's external ground screw.

Transmitter internal ground screwFigure 4-17:

Installation Manual 47

Mounting and sensor wiring for 9-wire remote installations

Transmitter external ground screwFigure 4-18:

48 Micro Motion® Model 1700 and 2700

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

5 Mounting and sensor wiring for

remote core processor with remote sensor installations

Topics covered in this chapter:

Mounting options

•

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

•

Rotate the user interface on the transmitter (optional)

•

Ground the flowmeter components

•

5.1 Mounting options

There are two options available for mounting the transmitter:

• Mount the transmitter to a wall or flat surface.

• Mount the transmitter to an instrument pole.

5.1.1

Mount the transmitter 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.

1. If desired, re-orient the transmitter on the mounting bracket.

a. Remove the junction end-cap from the junction housing.

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

c. Rotate the bracket so that the transmitter is oriented as desired.

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

e. Replace the junction end-cap.

Installation Manual 49

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

Figure 5-1:

Components of 4-wire remote mount transmitter (aluminum housing)

A. End cap B. Cap screws C. Transmitter D. Mounting bracket

50 Micro Motion® Model 1700 and 2700

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

Figure 5-2:

Components of a 4-wire remote mount transmitter (stainless steel housing)

A. End cap B. Cap screws C. Transmitter D. Mounting bracket

2. Attach the mounting bracket to the wall.

5.1.2

Mount the transmitter 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 (appropriate bolts and nuts are available as an option).

• 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, re-orient the transmitter on the mounting bracket.

a. Remove the junction end-cap from the junction housing.

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

c. Rotate the bracket so that the transmitter is oriented as desired.

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

e. Replace the junction end-cap.

Installation Manual 51

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

Figure 5-3:

Components of 4-wire remote mount transmitter (aluminum housing)

A. End cap B. Cap screws C. Transmitter D. Mounting bracket

52 Micro Motion® Model 1700 and 2700

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

Figure 5-4:

A. End cap B. Cap screws C. Transmitter D. Mounting bracket

Components of a 4-wire remote mount transmitter (stainless steel housing)

2. Attach the mounting bracket to an instrument pole.

5.2

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 (appropriate bolts and nuts are available as an option).

• 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.

Installation Manual 53

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

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).

Components of a remote core processorFigure 5-5:

A. Mounting bracket B. Cap screws

2. Attach the mounting bracket to an instrument pole or wall.

5.3 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.

54 Micro Motion® Model 1700 and 2700

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

4-wire cable preparationFigure 5-6:

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

Installation Manual 55

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

4-wire cable shieldingFigure 5-7:

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

5.3.1 4-wire cable types and usage

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

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

56 Micro Motion® Model 1700 and 2700

Mounting and sensor wiring for remote core processor with remote sensor 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 5-1:

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)

5.4 Wire the transmitter to the remote core processor

1. If you are installing a Micro Motion-supplied cable gland at the core processor

housing, identify the cable gland to use for the 4-wire cable conduit opening.

Cable gland identificationFigure 5-8:

A. Cable gland used with 4-wire conduit opening B. 3/4"–14 NPT cable gland used with 9-wire conduit opening C. 1/2"–14 NPT or M20x1.5 cable glands used with transmitter

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

3. Feed the wires from the remote core processor through the conduit opening.

Installation Manual 57

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

4. Connect wires to the appropriate terminals on the mating connector.

Important

Never ground the shield, braid, or drain wire(s) at the transmitter.

Tip

Wiring path for transmitters with aluminum housingFigure 5-9:

A. 4-wire cable B. Mating connector

58 Micro Motion® Model 1700 and 2700

VDC+

VDC–

RS-485A

RS-485B

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

Wiring path for transmitters with stainless steel housingFigure 5-10:

5.5

A. 4-wire cable B. Mating connector

Prepare the 9-wire cable

Micro Motion supplies three types of 9-wire cable: jacketed, shielded, and armored. The type of cable you are using determines how you will prepare the cable.

Perform the cable preparation procedure appropriate for your cable type.

Installation Manual 59

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

Preparing jacketed cableFigure 5-11:

Prepare jacketed

cable at the sensor

end

1. Trim 4 ½ inches (115 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.

Trim cable jacket

4. Identify the drain wires in the cable. Clip off each drain wire as close as possible to the cable jacket.

Drain wires clipped

5. Slide the 1 ½ inch (40 mm) heat-shrink tubing over the wires and cable jacket. The tubing should completely cover the clipped ends of the drain wires.

Prepare jacketed

cable at the

transmitter end

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.

Trim cable jacket

4. Identify the drain wires in the cable and bring them together. Fan the other wires to the outside of the cable. Twist the drain wires together.

5. Slide the 3-inch (75 mm) heat-shrink tubing over the drain wires. Push the tubing as close as possible to the cable jacket.

6. Slide the 1 ½ inch (40 mm) long heat-shrink tubing over the cable jacket. The tubing should completely cover all portions of the drain wires that remain exposed next to the cable jacket.

Heat-shrink

tubing

6. Without burning the cable, apply heat to shrink all tubing. Recommended temperature is 250 °F (121 °C).

7. Allow the cable to cool, then strip ¼ inch (5 mm) of insulation from each wire.

Heat-shrink tubing over

cable jacket

Heat-shrink tubing over drain

wires

7. Without burning the cable, apply heat to shrink all tubing. Recommended temperature is 250 °F (121 °C).

8. Allow the cable to cool, then strip ¼ inch (5 mm) of insulation from each wire.

60 Micro Motion® Model 1700 and 2700

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

Preparing shielded or armored cableFigure 5-12:

Prepare shielded or

armored cable at the

sensor end

1. Without cutting the shield, strip 7 inches (175 mm) of outer jacket.

2. Strip 6 ½ inches (165 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 4 ½ inches (115 mm) of inner jacket.

Trim outer jacket

Trim braided shield

Trim inner jacket

5. Remove the clear wrap and filler material.

6. Remove the foil that is around the insulated wires and separate them.

7. Identify the drain wires in the cable. Clip each drain wire as close as possible to the cable jacket.

Drain wires clipped

8. Slide the 1 ½ inch (40 mm) long heat-shrink tubing over the cable jacket. The tubing should completely cover the clipped ends of the drain wires.

Prepare shielded or

armored cable at the

transmitter end

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 4 inches (100 mm) of inner jacket.

Trim outer jacket

Trim braided shield

Trim inner jacket

5. Remove the clear wrap and filler material.

6. Remove the foil that is around the insulated wires and separate them.

7. Identify the drain wires in the cable and bring them together. Fan the other wires to the outside of the cable. Twist the drain wires together.

8. Slide the 3-inch (75 mm) long heat-shrink tubing over the drain wires. Push the tubing as close as possible to the inner jacket.

9. Slide the 1 ½ inch (40 mm) long heat-shrink tubing over the cable jacket. The tubing should completely cover all portions of the drain wires that remain exposed next to the cable jacket.

Heat-shrink tubing

9. Without burning the cable, apply heat to shrink all tubing. Recommended temperature is 250 °F (121 °C).

10. Allow the cable to cool, then strip ¼ inch (5 mm) of insulation from each wire.

Heat-shrink tubing over cable

Heat-shrink tubing over drain wires

10. Without burning the cable, apply heat to shrink all tubing. Recommended temperature is 250 °F (121 °C).

11. Allow the cable to cool, then strip ¼ inch (5 mm) of insulation from each wire.

jacket

5.5.1 9-wire cable types and usage

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

Cable types

Micro Motion supplies three types of 9-wire cable: jacketed, shielded, and armored. Note the following differences between the cable types:

• Armored cable provides mechanical protection for the cable wires.

• Jacketed cable has a smaller bend radius than shielded or armored cable.

• If ATEX compliance is required, the different cable types have different installation

requirements.

Cable jacket types

All cable types can be ordered with a PVC jacket or Teflon® FEP jacket. Teflon FEP is required for the following installation types:

• All installations that include a T-series sensor.

• All installations with a cable length of 250 ft (75 m) or greater, a nominal flow less

than 20 percent, and ambient temperature changes greater than +68 °F (+20 °C).

Cable jacket material and temperature rangesTable 5-2:

Handling temperature Operating temperature

Cable jacket material Low limit High limit Low limit High limit

PVC –4 °F (–20 °C) +194 °F (+90 °C) –40 °F (–40 °C) +221 °F (+105 °C)

Teflon FEP –40 °F (–40 °C) +194 °F (+90 °C) –76 °F (–60 °C) +302 °F (+150 °C)

Cable bend radii

Bend radii of jacketed cableTable 5-3:

Jacket material Outside diameter Minimum bend radii

Static (no load) condition Under dynamic load

PVC 0.415 inches (10 mm) 3–1/8 inches (80 mm) 6–1/4 inches (159 mm)

Teflon FEP 0.340 inches (9 mm) 2–5/8 inches (67 mm) 5–1/8 inches (131 mm)

Bend radii of shielded cableTable 5-4:

Jacket material Outside diameter Minimum bend radii

Static (no load) condition Under dynamic load

PVC 0.2 inches (14 mm) 4–1/4 inches (108 mm) 8–1/2 inches (216 mm)

Teflon FEP 0.425 inches (11 mm) 3–1/4 inches (83 mm) 6–3/8 inches (162 mm)

62 Micro Motion® Model 1700 and 2700

C (4)

B (4)

D (5)

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

Bend radii of armored cableTable 5-5:

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

Cross-section view of jacketed cableFigure 5-13:

A. Outer jacket B. Drain wire (4 total) C. Foil shield (4 total) D. Filler (5 total)

Installation Manual 63

C (1)

E (4)

F (4)

G (5)

C (1)

E (4)

F (4)

G (5)

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

Cross-section view of shielded cableFigure 5-14:

A. Outer jacket B. Tin-plated copper braided shield C. Foil shield (1 total) D. Inner jacket E. Drain wire (4 total) F. Foil shield (4 total) G. Filler (5 total)

Cross-section view of armored cableFigure 5-15:

A. Outer jacket B. Stainless steel braided shield C. Foil shield (1 total) D. Inner jacket E. Drain wire (4 total) F. Foil shield (4 total) G. Filler (5 total)

64 Micro Motion® Model 1700 and 2700

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

5.6 Wire the remote core processor to the sensor using jacketed cable

For ATEX installations, the jacketed cable must be installed inside a user-supplied sealed metallic conduit that provides 360° termination shielding for the enclosed cable.

CAUTION!

Sensor wiring is intrinsically safe. To keep sensor wiring intrinsically safe, keep the sensor wiring separated from power supply wiring and output wiring.

CAUTION!

1. Run the cable through the conduit. Do not install 9-wire cable and power cable in

the same conduit.

2. To prevent conduit connectors from seizing in the threads of the conduit openings,

apply a conductive anti-galling compound to the threads, or wrap threads with PTFE tape two to three layers deep.

Wrap the tape in the opposite direction that the male threads will turn when inserted into the female conduit opening.

3. Remove the junction box cover and core processor end-cap.

4. At both the sensor and transmitter, do the following:

a. Connect a male conduit connector and waterproof seal to the conduit opening

for 9-wire.

b. Pass the cable through the conduit opening for the 9-wire cable.

c. Insert the stripped end of each wire into the corresponding terminal at the

sensor and transmitter ends, matching by color. No bare wires should remain exposed.

Sensor and remote core processor terminal designationsTable 5-6:

Wire color Sensor terminal Remote core processor terminal Function

Black No connection Ground screw (see note) Drain wires

Brown 1 1 Drive +

Red 2 2 Drive –

Installation Manual 65

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

Table 5-6:

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 –

White 9 9 Left pickoff –

Note

Ground the shield drain wires (the black wire) only on the core processor end, by connecting it to the ground screw inside the lower conduit ring. Never ground to the core processor’s mounting screw. Never ground the cable at the sensor junction box.

Sensor and remote core processor terminal designations

(continued)

d. Tighten the screws to hold the wire in place.

e. Ensure integrity of gaskets, grease all O-rings, then replace the junction-box and

transmitter housing covers and tighten all screws, as required.

5.6.1

Sensor and remote core processor terminals

66 Micro Motion® Model 1700 and 2700

A. Violet B. Yellow C. Orange D. Brown E. White F. Green G. Red H. Gray I. Blue

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

ELITE, H-Series, T-Series, and some F-Series sensor terminalsFigure 5-16:

F-Series, Model D, and Model DL sensor terminalsFigure 5-17:

Installation Manual 67

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

Figure 5-18:

Model DT sensor terminals (user-supplied metal junction box with terminal block)

A. Earth ground

Remote core processor terminalsFigure 5-19:

A. Brown B. Violet C. Yellow D. Orange E. Gray F. Blue G. White H. Green I. Red J. Mounting screw K. Ground screw (black)

68 Micro Motion® Model 1700 and 2700

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

5.7 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, at both the sensor and remote core processor ends. Cable glands that meet ATEX requirements can be purchased from Micro Motion. Cable glands from other vendors can be used.

CAUTION!

1. Identify the components of the cable gland and cable.

Cable gland and cable (exploded view)Figure 5-20:

A. Cable B. Sealing nut C. Compression nut D. Brass compression ring E. Braided shield F. Cable G. Tape or heat-shrink tubing H. Clamp seat (shown as integral to nipple) I. Nipple

2. Unscrew the nipple from the compression nut.

Installation Manual 69

E F

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

3. Screw the nipple into the conduit opening for the 9-wire cable. Tighten it to one turn

past hand-tight.

4. Slide the compression ring, compression nut, and sealing nut onto the cable. Make

sure the compression ring is oriented so the taper will mate properly with the tapered end of the nipple.

5. Pass the cable end through the nipple so the braided shield slides over the tapered

end of the nipple.

6. Slide the compression ring over the braided shield.

7. Screw the compression nut onto the nipple. Tighten the sealing nut and

compression nut by hand to ensure that the compression ring traps the braided shield.

8. Use a 25-mm (1-inch) wrench to tighten the sealing nut and compression nut to

20–25 foot-pounds (27–34 N-m) of torque.

Cross-section of assembled cable gland with cableFigure 5-21:

A. Cable B. Sealing nut C. Seal D. Compression nut E. Braided shield F. Brass compression ring G. Nipple

9. Remove the junction box cover and remote core processor end-cap.

10. At both the sensor and remote core processor, connect the cable according to the

following procedure:

a. Insert the stripped end of each wire into the corresponding terminal at the

sensor and remote core processor ends, matching by color. No bare wires should remain exposed.

70 Micro Motion® Model 1700 and 2700

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

Sensor and remote core processor terminal designationsTable 5-7:

Wire color Sensor terminal Remote core processor terminal Function

Black No connection Ground screw (see notes) Drain wires

Brown 1 1 Drive +

Red 2 2 Drive –

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 –

White 9 9 Left pickoff –

Notes

• Ground the shield drain wires (the black wire) only on the remote core processor end,

by connecting it to the ground screw inside the lower conduit ring. Never ground to the core processor’s mounting screw. Never ground the cable at the sensor junction box.

• Ground the cable braid on both ends, by terminating it inside the cable glands.

5.7.1

b. Tighten the screws to hold the wires in place.

c. Ensure integrity of gaskets, grease all O-rings, then replace the junction box

cover and remote core processor end-cap and tighten all screws, as required.

Sensor and remote core processor terminals

Installation Manual 71

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

ELITE, H-Series, T-Series, and some F-Series sensor terminalsFigure 5-22:

A. Violet B. Yellow C. Orange D. Brown E. White F. Green G. Red H. Gray I. Blue

F-Series, Model D, and Model DL sensor terminalsFigure 5-23:

72 Micro Motion® Model 1700 and 2700

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

Figure 5-24:

Model DT sensor terminals (user-supplied metal junction box with terminal block)

A. Earth ground

Remote core processor terminalsFigure 5-25:

A. Brown B. Violet C. Yellow D. Orange E. Gray F. Blue G. White H. Green I. Red J. Mounting screw K. Ground screw (black)

Installation Manual 73

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

5.8 Rotate the user interface on the transmitter (optional)

The user interface on the transmitter electronics module can be rotated 90º or 180° from the original position.

Display componentsFigure 5-26:

A. Transmitter housing B. Sub-bezel C. Display module D. Display screws E. End-cap clamp F. Cap screw G. Display cover

1. Shut off power to the unit.

2. Remove the end-cap clamp by removing the cap screw.

3. Turn the display cover counterclockwise to remove it from the main enclosure.

4. Carefully loosen (and remove if necessary) the semicaptive display screws while

holding the display module in place.

5. Carefully pull the display module out of the main enclosure until the sub-bezel pin

terminals are disengaged from the display module.

Note

If the display pins come out of the board stack with the display module, remove the pins and reinstall them.

74 Micro Motion® Model 1700 and 2700

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

6. Rotate the display module to the desired position.

7. Insert the sub-bezel pin terminals into the display module pin holes to secure the

display in its new position.

8. If you have removed the display screws, line them up with the matching holes on the

sub-bezel, then reinsert and tighten them.

9. Place the display cover onto the main enclosure.

10. Turn the display cover clockwise until it is snug.

11. Replace the end-cap clamp by reinserting and tightening the cap screw.

12. Restore power to the transmitter.

5.9 Ground the flowmeter components

In a remote core processor with remote sensor installation, the transmitter, remote core processor, and sensor are all grounded separately.

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.

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 transmitter according to applicable local standards, using the

transmitter’s internal or external ground screw.

Transmitter internal grounding screwFigure 5-27:

Installation Manual 75

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

Transmitter external grounding screwFigure 5-28:

3. Ground the remote core processor according to applicable local standards, using

the remote core processor’s internal ground screw.

Remote core processor internal ground screwFigure 5-29:

76 Micro Motion® Model 1700 and 2700

6 Wiring the power supply

6.1 Wire the power supply

A user-supplied switch may be installed in the power supply line. For compliance with lowvoltage directive 2006/95/EC (European installations), a switch in close proximity to the transmitter is required.

1. Remove the transmitter housing cover.

2. Open the warning flap.

3. Connect the power supply wires to terminals 9 and 10.

Terminate the positive (line) wire on terminal 10 and the return (neutral) wire on terminal 9.

Wiring the power supply

Power supply wiring terminalsFigure 6-1:

A. Warning flap B. Equipment ground C. Power supply wiring terminals (9 and 10)

4. Ground the power supply using the equipment ground, also under the warning flap.

Installation Manual 77

Wiring the power supply

78 Micro Motion® Model 1700 and 2700

I/O wiring for Model 1700 and Model 2700 transmitters with analog outputs

7 I/O wiring for Model 1700 and

Model 2700 transmitters with analog outputs

Topics covered in this chapter:

Basic analog wiring

•

HART/analog single loop wiring

•

RS-485 point-to-point wiring

•

HART multidrop wiring

•

7.1 Basic analog wiring

Basic analog wiringFigure 7-1:

A. mA output loop (820 Ω maximum loop resistance) B. Frequency receiving device (output voltage level is +24 VDC ± 3%)

Installation Manual 79

I/O wiring for Model 1700 and Model 2700 transmitters with analog outputs

7.2 HART/analog single loop wiring

Note

For HART communications:

600 Ω maximum loop resistance

•

250 Ω minimum loop resistance

•

HART/analog single loop wiringFigure 7-2:

820 Ω maximum loop resistance

A. B. HART-compatible host or controller

80 Micro Motion® Model 1700 and 2700

I/O wiring for Model 1700 and Model 2700 transmitters with analog outputs

7.3 RS-485 point-to-point wiring

RS-485 point-to-point wiringFigure 7-3:

A. Other devices B. Primary controller C. Multiplexer

7.4

HART multidrop wiring

Tip

For optimum HART communication, single-point ground the output loop to an instrument-grade ground.

Installation Manual 81

I/O wiring for Model 1700 and Model 2700 transmitters with analog outputs

HART multidrop wiringFigure 7-4:

A. 250–600 Ω resistance B. HART-compatible host or controller C. HART-compatible transmitters D. Model 1700 or Model 2700 transmitter E. SMART FAMILY™ transmitters F. 24 VDC loop power supply required for passive transmitters

82 Micro Motion® Model 1700 and 2700

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

8 I/O wiring for Model 1700 and

Model 2700 transmitters with intrinsically safe outputs

Topics covered in this chapter:

Safe area mA output wiring

•

Safe area HART/analog single-loop wiring

•

Safe area HART multidrop wiring

•

Safe area frequency output/discrete output wiring

•

Hazardous area wiring

•

8.1 Safe area mA output wiring

Safe area mA output wiringFigure 8-1:

A. VDC B. R

load

Installation Manual 83

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

Safe area mA output load resistance valuesFigure 8-2:

= (V

max

Min. 250W and 17.5V required for HART communication

1000

900

800

700

(Ohms)

600

load

500

400

300

External resistor R

200

100

12 14 16 18 20 22 24 26 28 30

Supply voltage VDC (Volts)

supply

– 12)/0.023

OPERATING REGION

8.2 Safe area HART/analog single-loop wiring

Safe area HART/analog single-loop wiringFigure 8-3:

A. VDC B. R C. HART-compatible host or controller

(250–600 Ω resistance)

load

84 Micro Motion® Model 1700 and 2700

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

Safe area mA output load resistance valuesFigure 8-4:

= (V

Min. 250W and 17.5V required for HART communication

1000

900

800

700

(Ohms)

600

load

500

400

300

External resistor R

200

100

12 14 16 18 20 22 24 26 28 30

max

Supply voltage VDC (Volts)

– 12)/0.023

supply

OPERATING REGION

8.3 Safe area HART multidrop wiring

Tip

For optimum HART communication, single-point ground the output loop to an instrument-grade ground.

Installation Manual 85

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

Safe area HART multidrop wiringFigure 8-5:

A. 250–600 Ω resistance B. HART-compatible host or controller C. HART-compatible transmitters D. Model 1700 or Model 2700 transmitter with intrinsically safe outputs E. SMART FAMILY transmitter F. 24 VDC loop power supply required for HART 4–20 mA passive transmitters

8.4 Safe area frequency output/discrete output wiring

Safe area frequency output/discrete output wiringFigure 8-6:

A. VDC B. Counter C. R

load

86 Micro Motion® Model 1700 and 2700

10000

9000

8000

7000

range (Ohms)

load

6000

5000

4000

3000

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

Safe area frequency output/discrete output load resistance valuesFigure 8-7:

= (V

max

Min. 100 W for supply voltage less than 25.6 Volts

Rmin = (Vsupply – 25)/0.006

supply

– 4)/0.003

2000

External pull-up resistor R

1000

5 7 9 11 13 15 17 19 21 23

Supply voltage VDC (Volts)

8.5 Hazardous area wiring

Information provided about I.S. barriers is intended as an overview. Application-specific or product-specific questions should be addressed to the barrier manufacturer or Micro Motion.

DANGER!

Hazardous voltage can cause severe injury or death. Shut off the power before wiring transmitter outputs.

DANGER!

Improper wiring in a hazardous environment can cause an explosion. Install the transmitter only in an area that complies with the hazardous classification tag on the transmitter.

OPERATING REGION

25 27 29

Safety parametersTable 8-1:

Parameter 4–20 mA Frequency/discrete

Voltage (Ui) 30 V 30 V

Current (Ii) 300 mA 100 mA

Power (Pi) 1.0 W 0.75 W

Installation Manual 87

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

Safety parameters (continued)Table 8-1:

Parameter 4–20 mA Frequency/discrete

Capacitance (Ci)

Inductance (Li) 0.0 mH 0.0 mH

0.0005 μF 0.0005 μF

Voltage

Current

Capacitance

Inductance

The transmitter’s safety parameters require the selected barrier’s opencircuit voltage to be limited to less than 30 VDC (Vmax = 30 VDC). This voltage is the combination of the maximum safety barrier voltage (typically 28 VDC) plus an additional 2 VDC for HART communications when communicating in the hazardous area.

The transmitter’s safety parameters require the selected barrier’s shortcircuit currents to sum to less than 300 mA (Imax = 300 mA) for the milliamp outputs and 100 mA (Imax = 100 mA) for the frequency/discrete output.

The capacitance (Ci) of the transmitter is 0.0005 μF. This value added to the wire capacitance (Ccable) must be lower than the maximum allowable capacitance (Ca) specified by the I.S. barrier. Use the following equation to calculate the maximum length of the cable between the transmitter and the barrier: Ci + Ccable ≤ Ca

The inductance (Li) of the transmitter is 0.0 mH. This value plus the field wiring inductance (Lcable), must be lower than the maximum allowable inductance (La) specified by the I.S. barrier. The following equation can then be used to calculate the maximum cable length between the transmitter and the barrier: Li + Lcable ≤ La

88 Micro Motion® Model 1700 and 2700

Hazardous area Safe area

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

8.5.1 Hazardous area mA output wiring

Hazardous area mA output wiringFigure 8-8:

A. V B. V

out

C. Ground D. R E. R

load

barrier

Note

Add R

load

and R

to determine Vin.

barrier

Installation Manual 89

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

Safe area mA output load resistance valuesFigure 8-9:

= (V

max

Min. 250W and 17.5V required for HART communication

1000

900

800

700

(Ohms)

600

load

500

400

300

External resistor R

200

100

12 14 16 18 20 22 24 26 28 30

Supply voltage VDC (Volts)

supply

– 12)/0.023

OPERATING REGION

90 Micro Motion® Model 1700 and 2700

Hazardous area Safe area

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

8.5.2 Hazardous area frequency/discrete output wiring using galvanic isolator

Figure 8-10:

Hazardous area frequency/discrete output wiring using galvanic isolator

A. External power supply B. V C. R D. Galvanic isolator (see note) E. Counter

out

load

Note

The galvanic isolator shown here has an internal 1000 Ω resistor used for sensing current:

• ON > 2.1 mA

• OFF < 1.2 mA

Installation Manual 91

Hazardous area Safe area

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

8.5.3 Hazardous area frequency/discrete output wiring using barrier with external load resistance

Figure 8-11:

A. R B. V C. V D. Counter E. R F. Ground

barrier

out

load

Hazardous area frequency/discrete output wiring using barrier with external load resistance

Note

Add R

barrier

and R

to determine Vin.

load

92 Micro Motion® Model 1700 and 2700

10000

9000

8000

7000

range (Ohms)

load

6000

5000

4000

3000

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

Safe area frequency output/discrete output load resistance valuesFigure 8-12:

= (V

max

Rmin = (Vsupply – 25)/0.006

Min. 100 W for supply voltage less than 25.6 Volts

supply

– 4)/0.003

2000

External pull-up resistor R

1000

5 7 9 11 13 15 17 19 21 23

OPERATING REGION

25 27 29

Supply voltage VDC (Volts)

Installation Manual 93

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

94 Micro Motion® Model 1700 and 2700

I/O wiring for Model 2700 transmitters with configurable input/outputs

9 I/O wiring for Model 2700

transmitters with configurable input/ outputs

Topics covered in this chapter:

Channel configuration

•

mA/HART wiring

•

Frequency output wiring

•

Discrete output wiring

•

Discrete input wiring

•

9.1 Channel configuration

The six wiring terminals are divided into three pairs, and called Channels A, B, and C. Channel A is terminals 1 and 2; Channel B is terminals 3 and 4; and Channel C is terminals 5 and 6. Variable assignments are governed by channel configuration.

Channel configurationTable 9-1:

Channel Terminals Configuration options Power

A 1, 2 mA output with HART/Bell202 Internal

B 3, 4 mA output (default) Internal

Frequency output Internal or external

Discrete output Internal or external

C 5, 6 Frequency output (default) Internal or external

Discrete output Internal or external

Discrete input Internal or external

Notes

• For Channel A, the Bell 202 signal is superimposed on the mA output.

• You must provide power to the outputs when a channel is set to external power.

• When both Channel B and Channel C are configured for frequency output (dual pulse),

frequency output 2 is generated from the same signal that is sent to the first frequency output. Frequency output 2 is electrically isolated but not independent.

Installation Manual 95

I/O wiring for Model 2700 transmitters with configurable input/outputs

• You cannot configure the combination of Channel B as discrete output and Channel C as

frequency output.

9.2 mA/HART wiring

9.2.1 Basic mA output wiring

Basic mA output wiringFigure 9-1:

820 Ω maximum loop resistance

420 Ω maximum loop resistance

9.2.2

HART/analog single loop wiring

Note

For HART communications:

600 Ω maximum loop resistance

•

250 Ω minimum loop resistance

•

96 Micro Motion® Model 1700 and 2700

Emerson 1700 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Flowmeter components

Planning

Installation types

Maximum cable lengthsTable 1-1:

1.2 Outputs option identification

1.3 Environmental limits

Hazardous area classifications

Power requirements

1.6 Orientation

1.7 Accessibility for maintenance

Mounting and sensor wiring for integral installations

Mounting and sensor wiring

Rotate the transmitter on the sensor (optional)

2.3 Rotate the user interface on the transmitter (optional)

2.4 Ground the flowmeter components

Mounting and sensor wiring for 4-wire remote installations

Mounting options

Mount the transmitter to a wall

Mount the transmitter to an instrument pole

Prepare the 4-wire cable

3.2.1 4-wire cable types and usage

3.3 Wire the transmitter to the sensor

Rotate the user interface on the transmitter (optional)

3.5 Ground the flowmeter components

Mounting and sensor wiring for 9-wire remote installations

Mounting options

Mount the transmitter to a wall

Mount the transmitter to an instrument pole

Prepare the 9-wire cable

4.2.1 Micro Motion 9-wire cable types and usage

4.3 Wire the transmitter to the sensor using jacketed cable

4.3.1 Sensor and transmitter terminals

Wire the transmitter to the sensor using shielded or armored cable

4.4.1 Sensor and transmitter terminals

Rotate the user interface on the transmitter (optional)

4.6 Ground the flowmeter components

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

Mounting options

Mount the transmitter to a wall

Mount the transmitter to an instrument pole

Mount the remote core processor

5.3 Prepare the 4-wire cable

5.3.1 4-wire cable types and usage

5.4 Wire the transmitter to the remote core processor

Prepare the 9-wire cable

5.5.1 9-wire cable types and usage

5.6 Wire the remote core processor to the sensor using jacketed cable

Sensor and remote core processor terminals

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

Sensor and remote core processor terminals

5.8 Rotate the user interface on the transmitter (optional)

5.9 Ground the flowmeter components

6.1 Wire the power supply

Wiring the power supply

I/O wiring for Model 1700 and Model 2700 transmitters with analog outputs

Basic analog wiring

HART/analog single loop wiringFigure 7-2:

RS-485 point-to-point wiringFigure 7-3:

HART multidrop wiring

I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs

Safe area mA output wiring

Safe area HART/analog single-loop wiringFigure 8-3:

8.3 Safe area HART multidrop wiring

Safe area frequency output/discrete output wiringFigure 8-6:

8.5 Hazardous area wiring

Hazardous area mA output wiringFigure 8-8:

Hazardous area frequency/discrete output wiring using galvanic isolator

Hazardous area frequency/discrete output wiring using barrier with external load resistance

I/O wiring for Model 2700 transmitters with configurable input/outputs

Channel configuration

9.2 mA/HART wiring

Basic mA output wiringFigure 9-1:

HART/analog single loop wiring