Emerson 3350 User Manual

Quick Reference Guide

P/N 20001008, Rev. B
August 2005

Model 3700 Transmitter
(MVD) or
Model 3350 Peripheral

Installation Instructions for
Field-Mount

For technical support, phone the support center nearest you:

• In the U.S.A., phone [phone]-MASS
(1-800-522-6277)

• In Canada and Latin America, phone
[phone]

• In Asia, phone [phone]

• In the U.K., phone 0800 - 966 180 (toll-free)

• Outside the U.K., phone [phone]

BEFORE YOU BEGIN

This quick reference guide explains basic installation guidelines for
installing the Micro Motion

®

Model 3350/3700 MVD applications

platform.

For information on I.S. applications, refer to Micro Motion approval
documentation.

For complete instructions about configuration, maintenance, and service,
refer to the instruction manual shipped with the transmitter.

WARNING

Improper installation in a hazardous area can cause
an explosion.

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

WARNING

Hazardous voltage can cause severe injury or death.

Install transmitter and complete all wiring before
supplying power.

CAUTION

Improper installation could cause measurement error
or meter failure.

Follow all instructions to ensure transmitter will operate
correctly.

©2005, Micro Motion, Inc. All rights reserved. Micro Motion is a registered trademark of Micro Motion, Inc. The Micro
Motion and Emerson logos are trademarks of Emerson Electric Co. All other trademarks are property of their respective
owners.

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European installations

This Micro Motion product complies with all applicable European
directives when properly installed in accordance with the instructions in
this quick reference guide. Refer to the EC declaration of conformity for
directives that apply to this product.

The EC declaration of conformity, with all applicable European
directives, and the complete ATEX Installation Drawings and
Instructions are available on the web at www.micromotion.com/atex or
through your local Micro Motion support center.

Installation kit

The Model 3350/3700 installation kit includes the parts shown in
Figure 1.

Figure 1. Field-mount installation kit

Mounting bracket

4 x Lock washer

Transmitter can be oriented
on bracket. See Step 3.

4 x Flat washer

4 x M8x16 Bolt assemblies

2

STEP 1. Choosing a location

Choose a location for the transmitter based on the requirements described
below.

WARNING

Improper installation in a hazardous area could cause
an explosion.

Install the transmitter in an area that is compatible with
the rating on the approvals tag. See Figure 3.

Environmental requirements

Install the Model 3350/3700 according to specified limits:

• Ambient temperature: –4 to +140 °F (–20 to +60 °C)

Dimensions

See Figures 2, 3, and 4 for Model 3350/3700 dimensions.

Visibility of tags

To ensure personal and system safety, all tags attached to the housing
must remain visible. Clean them as often as necessary. Replace tags that
are damaged, missing, or worn. See Figure 3 for location of approvals tag.

3

Figure 2. Dimensions – face view

inches

(mm)

4 x 5/16-inch

(9 mm)

diameter

2 13/16

(71)

Mounting bracket can
be rotated as needed

11

(279)

12

(305)

4

(102)

9 3/16

(234)

Display cover can be

rotated as needed

Figure 3. Dimensions – top view

inches

(mm)

6 1/8
(158)

8 11/16

(221)

3 5/8

(92)

6

(152)

5 1/16-inch (129 mm)

clearance for removal of

circuit boards

Approvals tag

15 1/2

(394)

11 5/16

(288)

4

Figure 4. Dimensions – conduit openings view

inches

(mm)

Case ground

5 x 3/4–14 NPT

or

5 x M20 x 1.5 – 6H

2 x 15/16

(24)

1 7/8

(48)

Mounting surface

2 x 2 13/17

(71)

7 1/2
(191)

5 3/4
(147)

10 3/8

(265)

Cable lengths

Maximum cable length from the sensor to the Model 3700 transmitter
depends on the installation type and cable type:

• 4-wire remote transmitter: see Figure 5, then refer to Table 1 for
maximum length of the 4-wire cable.

• Remote core processor with remote transmitter: see Figure 6, then
refer to Table 1 for maximum length of the 4-wire cable and the
9-wire cable.

If you are installing the Model 3350 applications peripheral in
combination with a transmitter, the maximum cable length from the
transmitter’s frequency output to the Model 3350’s frequency input is
500 feet (150 meters).

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Figure 5. 4-wire remote transmitter

Sensor

Core processor
(standard or enhanced)

4-wire cable

Model 3700

Figure 6. Remote core processor with remote transmitter

Model 3700

Sensor

4-wire cable

Junction box

9-wire cable

Core processor
(standard only)

Table 1. 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

20 AWG (0,5 mm

18 AWG (0,8 mm

• Signal wires (RS-485) 22 AWG (0,35 mm

Cable from transmitter’s FO
to Model 3350’s FI

(1)

Not applicable 500 feet (150 meters)

(1) Applies only to the Model 3300 applications peripheral when receiving frequency input

from a remote Micro Motion transmitter such as an IFT9701 or RFT9739.

2

) 300 feet (90 meters)

2

) 500 feet (150 meters)

2

) 1000 feet (300 meters)

2

) or larger 1000 feet (300 meters)

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STEP 2. Preparing conduit openings for ATEX Zone 1

s

If the Model 3350/3700 carries an ATEX Zone 1 approval:

1. Remove thread protectors from conduit openings (see Figure 7).

2. Install factory-supplied cable glands or user-supplied EExe cable
entry devices in conduit openings that are in use.

3. Install EExe plugs in conduit openings that are not in use.

STEP 3. Orienting the Model 3350/3700 (optional)

The Model 3350/3700 can be oriented on the mounting bracket as
needed, and the display cover can be rotated on the applications platform.
Figure 7 provides orientation examples.

To orient the Model 3350/3700:

1. Use the four supplied mounting bolt assemblies.

2. Using a 13 mm hex wrench, install the bolt assemblies to 12 ft-lb
(16 Nm) of torque.

To rotate the display cover, if needed, see the transmitter installation
manual.

Figure 7. Orientation examples

Conduit openings

Conduit openings for

intrinsically safe

sensor wiring

Conduit openings for

non-intrinsically safe

input/output wiring

left

Conduit openings
right

Display cover

Conduit opening
down

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