Emerson MICRO MOTION 1700, MICRO MOTION 2700 User Manual

Installation Manual

P/N 20001700, Rev. C
November 2007

Micro Motion

®

Model 1700 and
Model 2700 Transmitters

Installation Manual

©2007, Micro Motion, Inc. All rights reserved. ELITE and ProLink are registered trademarks, and MVD and MVD Direct
Connect are trademarks of Micro Motion, Inc., Boulder, Colorado. Micro Motion is a registered trade name of Micro Motion,
Inc., Boulder, Colorado. The Micro Motion and Emerson logos are trademarks and service marks of Emerson Electric Co. All
other trademarks are property of their respective owners.

Contents

Chapter 1 Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.3 Flowmeter components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.4 Transmitter type, installation type, and outputs option board . . . . . . . . . . . . . . . . . . . 2

1.5 Transmitter installation procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.6 Flowmeter documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.7 Micro Motion customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Chapter 2 Installing the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2 Installation architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 Determining an appropriate location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.1 Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.2 Hazardous area classifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.3 Power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.4 Maximum cable lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3.5 Accessibility for maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4 Mounting the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4.1 Integral installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.4.2 4-wire remote or remote core processor with remote

transmitter installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4.3 9-wire remote installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5 Mounting the remote core processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.6 Grounding the flowmeter components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.7 Supplying power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.8 Rotating the display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chapter 3 Wiring the Transmitter to the Sensor. . . . . . . . . . . . . . . . . . . . . . . 19

3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2 Cable types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2.1 4-wire cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.2.2 9-wire cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.3 Wiring for 4-wire remote installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.4 Wiring for 9-wire remote installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.5 Wiring for remote core processor with remote transmitter installations. . . . . . . . . . . 23

Chapter 4 Output Wiring – Model 1700/2700 Analog Transmitters . . . . . . . . . . 29

4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.2 Output terminals and output types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.3 Output wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Installation Manual iii

Contents

Chapter 5 Output Wiring – Model 1700/2700 Intrinsically Safe Transmitters . . . 33

5.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.2 Output terminals and output types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3 Safe area output wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.3.1 Safe area mA output wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.3.2 Safe area frequency/discrete output wiring . . . . . . . . . . . . . . . . . . . . . . . 36

5.4 Hazardous area output wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.4.1 Hazardous area safety parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.4.2 Hazardous area mA output wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.4.3 Hazardous area frequency/discrete output wiring . . . . . . . . . . . . . . . . . . 39

Chapter 6 Output Wiring – Model 2700 Configurable I/O Transmitters . . . . . . . 41

6.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.2 Channel configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.3 mA output wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

6.4 Frequency output wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.5 Discrete output wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.6 Discrete input wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Chapter 7 Output Wiring – Model 2700 FOUNDATION fieldbus and PROFIBUS-PA

Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

7.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

7.2 F

7.3 PROFIBUS-PA wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

OUNDATION fieldbus wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Appendix A Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

A.1 Functional specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

A.1.1 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

A.1.2 Input/output signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

A.1.3 Digital communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

A.1.4 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

A.1.5 Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

A.1.6 Ambient temperature effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

A.1.7 EMC compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

A.2 Hazardous area classifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

A.2.1 UL and CSA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

A.2.2 ATEX and IECEx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

A.3 Performance specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

A.4 Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

A.4.1 Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

A.4.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

A.4.3 Interface/display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

A.4.4 Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

A.4.5 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

iv Micro Motion® Model 1700 and 2700 Transmitters

Chapter 1

WARNING

WARNING

CAUTION

Before You Begin

1.1 Overview

This chapter provides an orientation to the use of this manual. This manual describes the procedures
required to install the following Model 1700 and 2700 transmitters:

• Model 1700 or Model 2700 with analog outputs option board

• Model 1700 or Model 2700 with intrinsically safe analog outputs option board

• Model 2700 with configurable input/outputs option board

• Model 2700 with F

• Model 2700 with PROFIBUS-PA option board

If you do not know what transmitter you have, see Section 1.4 for instructions on identifying the
transmitter type from the model number on the transmitter’s tag.

Note: Installation information for Model 1500 transmitters or Model 2500 transmitters is provided in
a separate manual. See the manual for your transmitter.

OUNDATION fieldbus

™

option board

Installing the Transmitter Output Wiring – AnalogSensor WiringBefore You Begin

1.2 Safety

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

Improper installation in a hazardous area can cause an explosion.

For information about hazardous applications, refer to the approval documentation,
shipped with the transmitter or available from the Micro Motion web site.

Hazardous voltage can cause severe injury or death.

Make sure power is disconnected before installing transmitter.

Improper installation could cause measurement error or flowmeter failure.

Follow all instructions to ensure transmitter will operate correctly.

Installation Manual 1

Before You Begin

1.3 Flowmeter components

The Model 1700 or 2700 transmitter is one component in your Micro Motion flowmeter. Other major
components include:

• The sensor, which provides measurement functions

• The core processor, which provides memory and processing functions

1.4 Transmitter type, installation type, and outputs option board

To install the transmitter, you must know your transmitter type, installation type, and outputs option
board. This section provides information on obtaining this information. The codes described below
match the codes that were used to order your transmitter.

1. Obtain the transmitter's model number, which is provided on a tag attached to the side of the
transmitter.

• Model 1700 transmitters have a model number of the form

1700xxxxxxxxxx.

• Model 2700 transmitters have a model number of the form

2. The fifth character in the model number (

xxxxXxxxxxxxxx) represents the installation type

that was ordered:

• R = remote (4-wire remote installation)

• I = integral (transmitter mounted on sensor)

• C = transmitter/core processor assembly (9-wire remote installation)

• B = remote core processor with remote transmitter

Note: For more information on installation type, see Figure 2-1.

3. The eighth character in the model number (

xxxxxxxXxxxxxx) represents the outputs option

board.

• A = transmitter with analog outputs option board (one mA, one frequency, one RS-485)

• B = transmitter with configurable input/outputs option board, default output configuration

(two mA, one frequency)

• C = transmitter with configurable input/outputs option board, customized output

configuration

• D = transmitter with intrinsically safe analog outputs option board

• E = transmitter with intrinsically safe (FISCO compliant) F

option board

• N = transmitter with non-incendive (FNICO compliant) F

option board

• G = transmitter with PROFIBUS-PA outputs option board

2700xxxxxxxxxx.

OUNDATION fieldbus outputs

OUNDATION fieldbus outputs

Note: The remaining characters in the model number describe options that do not affect transmitter
installation.

The following examples illustrate use of the model number to determine transmitter type, installation
type, and output board type:

•

1700RxxAxxxxxx = Model 1700 remote transmitter with analog outputs option board

•

2700CxxDxxxxxx = Model 2700 transmitter/core processor assembly with intrinsically safe

outputs option board

2 Micro Motion® Model 1700 and 2700 Transmitters

Before You Begin

1.5 Transmitter installation procedures

To install the transmitter, the following procedures are required:

• Install the transmitter – see Chapter 2

• Wire the transmitter to the sensor – see Chapter 3

• Wire the transmitter outputs:

- For Model 1700 or 2700 analog outputs transmitters, see Chapter 4.

- For Model 1700 or 2700 intrinsically safe analog outputs transmitters, see Chapter 5.

- For Model 2700 configurable I/O transmitters, see Chapter 6.

- For Model 2700 F
Chapter 7.

1.6 Flowmeter documentation

Table 1-1 lists documentation sources for other required information. Documents can be obtained in
PDF form from the Micro Motion web site (www.micromotion.com/documentation).

Table 1-1 Flowmeter documentation resources

Topic Document

Sensor installation Installation manual shipped with sensor

Core processor installation (if mounted
remotely from sensor and transmitter)

Transmitter configuration, transmitter
startup and use, and transmitter
troubleshooting

OUNDATION fieldbus and PROFIBUS-PA outputs transmitters, see

This document

Series 1000 and 2000 Transmitter Configuration and
Use Manual

or

Model 2700 Transmitter with F
Installation and Operation Manual

or

Model 2700 Transmitter with PROFIBUS-PA
Installation and Operation Manual

OUNDATION Fieldbus

Installing the Transmitter Output Wiring – AnalogSensor WiringBefore You Begin

Installation Manual 3

Before You Begin

1.7 Micro Motion customer service

For technical assistance, phone the Micro Motion Customer Service department:

• In the U.S.A., phone 800-522-MASS (800-522-6277) (toll free)

• In Canada and Latin America, phone [phone] (U.S.A.)

•In Asia:

- In Japan, phone [phone]

- In other locations, phone [phone] (Singapore)

•In Europe:

- In the U.K., phone [phone] (toll-free)

- In other locations, phone [phone] (The Netherlands)

Customers outside the U.S.A. can also email Micro Motion customer service at
[e-mail].

4 Micro Motion® Model 1700 and 2700 Transmitters

Chapter 2

Installing the Transmitter

2.1 Overview

This chapter describes how to install Micro Motion Model 1700 and 2700 transmitters. The following
general steps are required:

• Determine the location of the transmitter and other flowmeter components (see Section 2.3)

• Mount the transmitter (see Section 2.4)

• Mount the core processor, if required (see Section 2.5)

• Ground the flowmeter components (see Section 2.6)

• Supply power to the flowmeter (see Section 2.7)

• Rotate the display, if desired and the transmitter has a display (see Section 2.8)

Installing the Transmitter Output Wiring – AnalogSensor WiringBefore You Begin

2.2 Installation architecture

Your flowmeter installation will match one of the architectures shown in Figure 2-1. Mounting, sensor
wiring, and grounding requirements depend on this architecture. Your installation type should be
consistent with the installation type specified in your transmitter model number (see Section 1.4).

Installation Manual 5

Transmitter

Sensor

Junction box

9-wire cable

9-wire remote

Core
processor

4-wire remote

Transmitter

Sensor

Core processor

4-wire cable

Transmitter

Sensor

Core processor

Integral

Remote core processor with
remote transmitter

4-wire cable

9-wire cable

Sensor

Junction box

Transmitter

Core

processor

Installing the Transmitter

Figure 2-1 Installation types

6 Micro Motion® Model 1700 and 2700 Transmitters

Installing the Transmitter

2.3 Determining an appropriate location

To determine an appropriate location for the transmitter, you must consider the environmental
requirements of the transmitter and core processor, hazardous area classification, location of power
source, cable lengths, accessibility for maintenance, and visibility of the display (if the transmitter is
equipped with a display).

2.3.1 Environmental requirements

The transmitter’s environmental requirements include temperature, humidity, and vibration.

Temperature limits

Install the transmitter in an environment where ambient temperature is between –40 and +140 °F
(–40 and +60 °C). If possible, install the transmitter in a location that will prevent direct exposure to
sunlight.

Different ambient temperature requirements may apply when installing the transmitter in a hazardous
area. Refer to the approval documentation shipped with the transmitter or available on the Micro
Motion web site.

Humidity limits

Installing the Transmitter Output Wiring – AnalogSensor WiringBefore You Begin

Install the transmitter in an environment where relative humidity is between 5 and 95%,
non-condensing at 140 °F (60 °C).

Vibration limits

The transmitter meets IEC 68.2.6, endurance sweep, 5 to 2000 Hz, 50 sweep cycles at 1.0 g.

2.3.2 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.

For more information about hazardous area classifications and requirements, see Section A.2.

2.3.3 Power source

Connect the transmitter to an AC or DC voltage source. The transmitter automatically recognizes the
source voltage.

AC power requirements

If you are using AC power, the following requirements apply:

• 85–265 VAC

•50/60 Hz

• 6 watts typical, 11 watts maximum

Installation Manual 7

Installing the Transmitter

MinimumSupplyVoltage 18V CableResistance CableLength× 0.5 A×()+=

MinimumSupplyVoltage 18V 0.0080 ohms/ft 350 ft× 0.5A×()+=

MinimumSupplyVoltage 19.4V=

MinimumSupplyVoltage 18V CableResistance CableLength× 0.5A×()+=

DC power requirements

Note: These requirements assume a single transmitter per cable. Connecting multiple transmitters to
a single cable should be avoided.

If you are using DC power, the following requirements apply:

• 18–100 VDC

• 6 watts typical, 11 watts maximum

• At startup, the transmitter 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. To size the cable, refer to Table 2-1 and
use the following formula as a guideline:

Table 2-1 Typical power cable resistances at 68 °F (20 °C)

Gauge Resistance

14 AWG 0.0050 Ω/foot

16 AWG 0.0080 Ω/foot

18 AWG 0.0128 Ω/foot

20 AWG 0.0204 Ω/foot

2,5 mm

1,5 mm

1 mm

0,75 mm

0,5 mm

(1) These values include the resistance of both high and low conductors in a cable.

Example

(1)

2

2

2

2

2

0,0136 Ω/meter

0,0228 Ω/meter

0,0340 Ω/meter

0,0460 Ω/meter

0,0680 Ω/meter

The transmitter is mounted 350 feet from a DC power supply. If you want to use 16 AWG
cable, calculate the required voltage at the DC power supply as follows:

8 Micro Motion® Model 1700 and 2700 Transmitters

Installing the Transmitter

CAUTION

2.3.4 Maximum cable lengths

This requirement does not apply to integral installations (see Figure 2-1). For other installation types
(see Figure 2-1), maximum cable length between flowmeter components depends on the installation
type and the cable type. Refer to Figure 2-1, then see Table 2-2.

Table 2-2 Maximum cable lengths

Cable type Wire gauge Maximum length

Micro Motion 9-wire Not applicable 60 feet (20 meters)

Micro Motion 4-wire Not applicable 1000 feet (300 meters)

User-supplied 4-wire

• Power wires (VDC) 22 AWG (0,35 mm

• Signal wires (RS-485) 22 AWG (0,35 mm2) or larger 1000 feet (300 meters)

2.3.5 Accessibility for maintenance

Ensure that the transmitter is mounted in a location and orientation that will allow easy access to the
terminals and to the display (if your transmitter has a display).

2

) 300 feet (90 meters)

2

20 AWG (0,5 mm

18 AWG (0,8 mm2) 1000 feet (300 meters)

) 500 feet (150 meters)

Installing the Transmitter Output Wiring – AnalogSensor WiringBefore You Begin

2.4 Mounting the transmitter

You can mount the transmitter in any orientation as long as the conduit and wiring openings do not
point upward. If possible, mount the transmitter so that there is at least 8–10″ (200–250 mm)
clearance at the rear of the housing to enable operator access to the wiring and power compartments.
For transmitter dimensions, see Appendix A.

Condensation or excessive moisture entering the transmitter could damage
the transmitter and result in measurement error or flowmeter failure.

To reduce the risk of measurement error or flowmeter failure:

• Ensure the integrity of gaskets and O-rings.

• Grease the O-rings every time the transmitter housing or core processor
housing is opened and closed.

• Do not mount the transmitter with the conduit openings pointing upward.

• Install drip legs on conduit or cable.

• Seal the conduit openings.

• Fully tighten the transmitter cover.

Installation Manual 9

Installing the Transmitter

CAUTION

Base

Core processor

Transmitter

Sensor

Transition ring

4 X Cap screws (4 mm)

2.4.1 Integral installations

If you chose an integral installation (see Figure 2-1), there are no special mounting instructions for the
transmitter.

You can rotate an integrally mounted transmitter up to 360° in 90° increments, to one of four possible
positions on the core processor base. See Figure 2-2.

Figure 2-2 Rotating the transmitter

Damaging the wires that connect the transmitter to the core processor can
cause measurement error or flowmeter failure.

To reduce the risk of damaging the wires, do not move the transmitter more than a
few inches from the core processor. When reassembling the flowmeter, ensure that
the wires will not be bent or pinched in the housing.

To rotate the transmitter on the core processor:

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

4. Rotate the transmitter to the desired orientation, and align the slots with the cap screws. Do not
pinch or stress the wires.

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).

10 Micro Motion® Model 1700 and 2700 Transmitters

Installing the Transmitter

CAUTION

Mounting bracket

(wall mount)

Mounting bracket

(pipe mount)

Note: If possible, maintain 8–10″ (200–250 mm) clearance
at the rear of the transmitter.

Twisting the core processor will damage the sensor.

To reduce the risk of damaging the sensor, do not allow the core processor
to rotate.

2.4.2 4-wire remote or remote core processor with remote transmitter installations

If you chose the 4-wire remote or the remote core processor with remote transmitter installation (see
Figure 2-1), see Figure 2-3 for a diagram of the mounting bracket supplied with the transmitter. Both
pipe mounting and wall mounting are shown. Ensure that the transmitter is mounted and oriented in a
way that will allow easy access to the terminals and to the display (if your transmitter has a display).

Figure 2-3 4-wire remote – Wall mount or pipe mount

Installing the Transmitter Output Wiring – AnalogSensor WiringBefore You Begin

To mount the transmitter:

1. Identify the components shown in Figure 2-4. For dimensions, see Appendix A.

2. If desired, re-orient the transmitter on the bracket.

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

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

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.

3. Attach the mounting bracket to an instrument pole or wall. For pipe mount, two user-supplied
U-bolts are required. Contact Micro Motion to obtain a pipe-mount installation kit if required.

Installation Manual 11

Installing the Transmitter

Ground screw

Mounting bracket

Main enclosure

Junction housing

Mating connector
socket

Mating connector

Junction end-cap

4 X Cap screws

(4 mm)

Conduit opening
for 4-wire cable

Mounting bracket

(wall mount)

Mounting bracket

(pipe mount)

Note: If possible, maintain 8–10″ (200–250 mm) clearance
at the rear of the transmitter.

Figure 2-4 Transmitter components – 4-wire remote or remote core processor with

remote transmitter installations

2.4.3 9-wire remote installations

If you chose a 9-wire remote installation (see Figure 2-1), see Figure 2-5 for a diagram of the
mounting bracket supplied with the transmitter/core processor assembly. Ensure that the transmitter is
mounted and oriented in a way that will allow easy access to the terminals and to the display (if your
transmitter has a display).

Figure 2-5 9-wire remote – Wall mount or pipe mount

12 Micro Motion® Model 1700 and 2700 Transmitters

Installing the Transmitter

End-cap

Mounting bracket

Core processor housing

Transmitter

Core processor

4 × Cap screws (4 mm)

Conduit opening

for 9-wire cable

To mount the transmitter/core processor assembly:

1. Identify the components shown in Figure 2-6. For dimensions, see Appendix A.

2. If desired, re-orient the transmitter on the 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).

3. Attach the mounting bracket to an instrument pole or wall. For pipe mount, two user-supplied
U-bolts are required. Contact Micro Motion to obtain a pipe-mount installation kit if required.

Figure 2-6 Transmitter/core processor assembly – Exploded view

Installing the Transmitter Output Wiring – AnalogSensor WiringBefore You Begin

2.5 Mounting the remote core processor

Note: This step is required only for remote core processor with remote transmitter installations (see
Figure 2-1). If you have an integral installation, 4-wire remote installation, or 9-wire remote
installation, go to Section 2.6.

If you chose the remote core processor with remote transmitter installation (see Figure 2-1), see
Figure 2-3 for a diagram of the mounting bracket supplied with the transmitter. Both pipe mounting
and wall mounting are shown.

Installation Manual 13

Installing the Transmitter

Mounting bracket

(wall mount)

Mounting bracket

(pipe mount)

End-cap

Mounting bracket

Core processor lid

Core processor housing

Conduit opening

for 4-wire cable

Conduit opening

for 9-wire cable

4 × Cap screws (4 mm)

Figure 2-7 Remote core processor – Wall mount or pipe mount

To mount the core processor:

1. Identify the components shown in Figure 2-8. For dimensions, see Appendix A.

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

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

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

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

3. Attach the mounting bracket to an instrument pole or wall. For pipe mount, two user-supplied
U-bolts are required. Contact Micro Motion to obtain a pipe-mount installation kit if required.

Figure 2-8 Remote core processor components

14 Micro Motion® Model 1700 and 2700 Transmitters

Installing the Transmitter

CAUTION

2.6 Grounding the flowmeter components

Grounding requirements depend on the installation type (see Figure 2-1
each flowmeter component are listed in Table 2-3.

Improper grounding could cause measurement error.

To reduce the risk of measurement error:

• Ground the transmitter to earth, or follow ground network requirements for the
facility.

• For installation in an area that requires intrinsic safety, refer to Micro Motion
approval documentation, shipped with the transmitter or available from the Micro
Motion web site.

• For hazardous area installations in Europe, refer to standard EN 60079-14 if
national standards do not apply.

If national standards are not in effect, follow these grounding guidelines:

• Use copper wire, 14 AWG (2,5 mm

). Grounding methods for

2

) or larger wire size, for grounding.

Installing the Transmitter Output Wiring – AnalogSensor WiringBefore You Begin

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

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

Table 2-3 Grounding methods for flowmeter components

Installation
architecture Components Grounding method

Integral Sensor / core processor /

transmitter

4-wire remote Sensor / core processor

9-wire remote Sensor / junction box See sensor documentation.

Remote core
processor with
remote
transmitter

assembly

Transmitter Ground according to applicable local standards, using either the

Transmitter / core
processor assembly

Sensor See sensor documentation.

Core processor Ground according to applicable local standards, using either the internal

Transmitter Ground according to applicable local standards, using either the

Ground via piping, if possible (see sensor documentation). Otherwise,
ground according to applicable local standards using either the
transmitter’s internal or external ground screw.

See sensor documentation.

transmitter’s internal or external ground screw.

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

or external ground screw.

transmitter’s internal or external ground screw.

Installation Manual 15

Installing the Transmitter

WARNING

Equipment
ground

9

10

Warning flap

2.7 Supplying power

In all installations, power must be provided to the transmitter. Refer to Section 2.3.3 for information
on the transmitter’s power supply requirements.

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

Connect the power supply to terminals 9 and 10, under the Warning flap. Terminate the positive (line)
wire on terminal 10 and the return (neutral) wire on terminal 9. Ground the power supply using the
equipment ground, also under the Warning flap. See Figure 2-9.

Figure 2-9 Wiring the transmitter power supply

2.8 Rotating the display

If your transmitter has a display, you can rotate the display on the transmitter up to 360° in
90° increments.

Removing the display cover in explosive atmospheres while the power is on
can cause an explosion.

To reduce the risk of an explosion, before removing the display cover in explosive
atmospheres, be sure to shut off the power and wait five minutes.

16 Micro Motion® Model 1700 and 2700 Transmitters

Installing the Transmitter

WARNING

Using a dry cloth to clean the display cover can cause static discharge,
which could result in an explosion in an explosive atmosphere.

To reduce the risk of an explosion, always use a damp cloth to clean the display
cover in an explosive atmosphere.

To rotate the display, follow the instructions below:

1. Power down the transmitter.

2. Remove the end-cap clamp by removing the cap screw. See Figure 2-10.

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: The display pins may come out of the board stack with the display module. If this happens,
simply remove the pins and reinstall them.

Installing the Transmitter Output Wiring – AnalogSensor WiringBefore You Begin

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. Turn the display cover clockwise until it is
snug.

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

11. Restore power to the transmitter.

Installation Manual 17

Installing the Transmitter

Display cover

Display screws

Display module

Main enclosure

Sub-bezel

Pin terminals

Cap screw

End-cap clamp

Figure 2-10 Display components

18 Micro Motion® Model 1700 and 2700 Transmitters

Chapter 3

CAUTION

Wiring the Transmitter to the Sensor

3.1 Overview

This chapter describes how to connect Micro Motion Model 1700 and 2700 transmitters to a Micro
Motion sensor.

Note: If you have an integral installation, this step is not required. Continue with wiring the
transmitter outputs (Chapters 4–7).

Wiring requirements between the sensor and transmitter depend on the installation type (see
Figure 2-1

).

• If you have a 4-wire remote transmitter installation, review the information on 4-wire cable in
Section 3.2, then follow the instructions in Section 3.3.

• If you have a 9-wire remote transmitter installation, review the information on 9-wire cable in
Section 3.2, then follow the instructions in Section 3.4.

• If you have a remote core processor with remote transmitter installation, review the
information on both 4-wire and 9-wire cable in Section 3.2, then follow the instructions in
Section 3.5.

Large electromagnetic fields can interfere with flowmeter communication
signals.

Improper installation of cable or conduit can cause measurement error or flowmeter
failure. To reduce the risk of measurement error or flowmeter failure, keep cable or
conduit away from devices such as transformers, motors, and power lines which
produce large electromagnetic fields.

Installing the Transmitter Output Wiring – AnalogSensor WiringBefore You Begin

3.2 Cable types

This section describes the types of 4-wire cable and 9-wire cable that can be used for wiring the
transmitter to the sensor.

Installation Manual 19

Wiring the Transmitter to the Sensor

Core processor

terminals

4-wire cable Mating connector

(transmitter)

Maximum cable length: see Table 2-2

VDC+

VDC–
RS-485A
RS-485B

User-supplied or

factory-supplied cable

VDC+ (Red)

VDC– (Black)

RS-485A (white)

RS-485B (Green)

3.2.1 4-wire cable

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:

• Twisted pair construction

• The gauge requirements as described in Table 2-2

• The applicable hazardous area requirements, if the core processor is installed in a hazardous
area (see the approval documentation shipped with the transmitter or available on the Micro
Motion web site)

3.2.2 9-wire cable

Micro Motion offers three types of 9-wire cable: jacketed, shielded, and armored. Refer to Micro
Motion’s 9-Wire Flowmeter Cable Preparation and Installation Guide for detailed descriptions of
these cable types and for assistance in selecting the appropriate cable for your installation.

3.3 Wiring for 4-wire remote installations

To connect the cable, follow the steps below.

1. Prepare the cable as described in the sensor documentation.

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

3. To connect the cable to the transmitter:

a. Identify the wires in the 4-wire cable. The 4-wire cable supplied by Micro Motion consists

of one pair of 18 AWG (0,75 mm
VDC connection, and one pair of 22 AWG (0,35 mm

2

) wires (red and black), which should be used for the

2

) wires (green and white), which

should be used for the RS-485 connection.

b. Connect the four wires from the core processor to terminals 1–4 on the mating connector

of the transmitter. See Figures 3-1, 3-2, and 3-3. Never ground the shield, braid, or drain
wire(s) at the transmitter.

Figure 3-1 4-wire cable between enhanced core processor and transmitter

20 Micro Motion® Model 1700 and 2700 Transmitters