Micro Motion Model 3700 Transmitter 9-Wire or Model 3350 Peripheral for Field-Mount Installation Instructions

Quick Reference Guide

P/N 3300996, Rev. C
April 2003

Model 3700 Transmitter
(9-Wire) or
Model 3350 Peripheral

Installation Instructions for
Field-Mount

For online technical support, use the EXPERT2™ system
at www.expert2.com. To speak to a customer service

representative, call 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]

Micro Motion

TM

BEFORE YOU BEGIN

This quick reference guide explains basic installation guidelines for

®

mounting the Micro Motion

Model 3350/3700 applications platform on

an instrument pole or flat surface.

For information on I.S. applications, refer to Micro Motion ATEX, UL,
or CSA installation instructions.

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 ATEX, UL, or CSA installation instructions,
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 flowmeter failure.

Follow all instructions to ensure transmitter will operate
correctly.

©2003, 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.

1

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 internet 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, page 5.

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, page 4.

Environmental requirements

Install the Model 3350/3700 according to specified limits:

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

• Humidity: SAMA PMC 31.3, Section 5.2, Environmental NEMA 4X
(IP 65)

• Vibration: Per IEC 68-2-6 at 1,0 g, 15 to 2000 Hz, 50 sweep cycles

Dimensions

See Figures 2 and 3, page 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, page 4, for location of
approvals tag.

Flowmeter cable lengths

Maximum cable length from the sensor to the Model 3700 transmitter is
1000 feet (300 meters).

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 3300’s frequency input is
500 feet (150 meters).

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