Emerson Micro Motion 2400S Installation Manual

Installation Manual

20003402, Rev. DA

January 2021

Micro Motion

TM

Installation Manual

Model 2400S Transmitters

Safety and approval information

This Micro Motion product complies with all applicable European directives when properly installed in accordance with the
instructions in this manual. 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.emerson.com/flowmeasurement or through your local Micro Motion support center.

Information affixed to equipment that complies with the Pressure Equipment Directive can be found on the internet at

www.emerson.com/flowmeasurement .

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

Other information

Full product specifications can be found in the product data sheet. Troubleshooting information can be found in the transmitter
configuration manual. Product data sheets and manuals are available from the Micro Motion web site at www.emerson.com/

flowmeasurement .

Return policy

Micro Motion procedures must be followed when returning equipment. These procedures ensure legal com pliance with government
transportation agencies and help provide a safe working environment for Micro Motion employees. Failure to follow Micro Motion
procedures will result in your equipment being refused delivery.

Information on return procedures and forms is available on our web support system at www.emerson.com/flowmeasurement , or by
phoning the Micro Motion Customer Service department.

Micro Motion customer service

Email:

• Worldwide: [e-mail]

• Asia-Pacific: [e-mail]

Telephone:

North and South America Europe and Middle East Asia Pacific

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

Canada [phone] The Netherlands [phone] New Zealand 099 128 804

Mexico [phone] France [phone] India 800 440 1468

Argentina [phone] Germany 0800 182 5347 Pakistan 888 550 2682

Brazil [phone] Italy [phone] China [phone]

Chile [phone] Central & Eastern [phone] Japan [phone]

Peru [phone] Russia/CIS [phone] South Korea [phone]

Egypt 0800 000 0015 Singapore [phone]

Oman 800 70101 Thailand 001 800 441 6426

Qatar 431 0044 Malaysia 800 814 008

Kuwait 663 299 01

South Africa 800 991 390

Saudi Arabia 800 844 9564

UAE 800 0444 0684

Contents

Chapter 1 Before you begin .......................................................................................................... 5

1.1 Safety .................................................................................................................................... 5

1.2 Flowmeter components.........................................................................................................5

1.3 Transmitter installation overview........................................................................................... 6

1.4 Flowmeter documentation.................................................................................................... 7

Chapter 2 Transmitter orientation and power supply ................................................................... 9

2.1 Moisture protection............................................................................................................... 9

2.2 Rotating the transmitter on the sensor (optional) ................................................................. 9

2.3 Rotating the user interface module on the transmitter (optional) ......................................... 10

2.4 Power supply requirements ................................................................................................... 12

2.5 DC power requirements for Model 2400S Analog and PROFIBUS-DP transmitters.................. 12

2.6 Wire the power supply........................................................................................................... 13

Chapter 3 Analog transmitter I/O wiring ...................................................................................... 15

3.1 Moisture protection............................................................................................................... 15

3.2 I/O options............................................................................................................................. 15

3.3 Wire the outputs.................................................................................................................... 16

Chapter 4 I/O wiring for Model 2400S PROFIBUS-DP and DeviceNet transmitters.......................... 27

4.1 Moisture protection............................................................................................................... 27

4.2 I/O wiring for Model 2400S PROFIBUS-DP transmitters .......................................................... 27

4.3 I/O wiring for Model 2400S DeviceNet transmitters ............................................................... 29

Appendix A Dimensions and specifications...................................................................................... 31

A.1 Dimensions............................................................................................................................ 31

A.2 Physical specifications............................................................................................................ 33

A.3 Power supply for Models 2400S Analog and PROFIBUS-DP..................................................... 33

A.4 Electrical connections ............................................................................................................ 34

A.5 User interface......................................................................................................................... 35

A.6 Input/output signals .............................................................................................................. 37

A.7 Digital communications......................................................................................................... 38

A.8 Host interface ........................................................................................................................ 38

A.9 Environmental limits.............................................................................................................. 39

A.10 Environmental effects............................................................................................................ 39

A.11 Hazardous area classifications................................................................................................ 39

Appendix B Return Policy................................................................................................................ 41

B.1 New and unused equipment .................................................................................................. 41

B.2 Used equipment .................................................................................................................... 41

Installation Manual 3

4 Model 2400S Transmitters

Before you begin

1 Before you begin

This manual describes the procedures required to install the following transmitters:

• Model 2400S transmitter with analog outputs

• Model 2400S transmitter with PROFIBUS-DP

• Model 2400S transmitter with DeviceNet

1.1 Safety

Read each safety message in this document carefully before proceeding to the next step.

WARNING!

Improper installation in a hazardous area can cause an explosion. For information about
hazardous applications, refer to the appropriate Micro Motion approval documentation,
shipped with the meter or available from the Micro Motion web site.

CAUTION!

Shut off power before installing the transmitter. Excess voltage can damage the transmitter.

TM

CAUTION!

Follow all instructions. Improper installation could cause measurement error or flowmeter
failure.

1.2 Flowmeter components

The Model 2400S transmitter is mounted on a Micro Motion sensor. The transmitter and
sensor together comprise the Micro Motion flowmeter.

Figure 1-1 provides a view of the Model 2400S transmitter mounted on a sensor.

Installation Manual 5

Figure 1-1 Model 2400S transmitter

Transmitter housing cover

Conduit openings

Clamping ring

Sensor case

Before you begin

1.3 Transmitter installation overview

The Model 2400S transmitter component is mounted integrally with the sensor and
grounded via the sensor. To install and ground the sensor, see the sensor documentation.

Additional transmitter installation steps are documented in this manual:

• Rotate the transmitter on the sensor (optional)

See Section 2.

• Rotate the user interface module on the transmitter (optional)

See Section 2.

• Wire and ground the transmitter’s power supply

See Section 2.

• Wire the transmitter I/O:

- For the Model 2400S Analog transmitter, see

- For the Model 2400S PROFIBUS-DP and DeviceNet transmitters, see

Section 3

Section 4

6 Model 2400S Transmitters

Before you begin

1.4 Flowmeter documentation

Table 1-1 Flowmeter documentation resources

Topic Document

Sensor installation Sensor documentation shipped with the sensor

Hazardous area installation

Transmitter configuration,
flowmeter startup and use, and
flowmeter troubleshooting

See the approval documentation shipped with the transmitter, or
download the appropriate documentation from the Micro Motion
web site at



Micro Motion Model 2400S Transmitters with Analog Outputs:
Configuration and Use Manual



Micro Motion Model 2400S Transmitters with PROFIBUS-DP:
Configuration and Use Manual



Micro Motion Model 2400S Transmitters with DeviceNet:
Configuration and Use Manual

www.emerson.com/flowmeasurement

.

Installation Manual 7

Before you begin

8 Model 2400S Transmitters

Transmitter orientation and power supply

2 Transmitter orientation and power

supply

This section describes:

• Rotating the transmitter on the sensor (optional)

• Rotating the user interface module on the transmitter (optional)

• Power supply requirements and wiring

2.1 Moisture protection

When rotating or wiring the transmitter, guard against condensation or excessive moisture
inside the transmitter housing. Be sure that the conduit openings are completely sealed
after you perform all installation and wiring procedures.

CAUTION!

Improperly sealed housings can expose electronics to moisture, which can cause measurement error
or flowmeter failure. Install the meter so that the conduit openings do not point upward, and install
drip legs in conduit or cable. Inspect and grease all gaskets and O-rings. Fully close and tighten all
housing covers and conduit openings.

2.2 Rotating the transmitter on the sensor (optional)

For easier access to the user interface or the wiring terminals, the transmitter can be
rotated on the sensor in 45° increments, for eight different orientations.

To rotate the transmitter on the sensor:

1. Unscrew the clamp that holds the transmitter to the feedthrough.

See Figure 2-1.

2. Gently lift the transmitter on the feedthrough until it disengages from the notches on

the feedthrough. You will not be able to remove the transmitter completely.

3. Rotate the transmitter to the desired position.

4. Lower the transmitter, sliding it onto the notches on the feedthrough.

5. Replace the clamp and tighten the screw.

Installation Manual 9

Figure 2-1 Rotating the transmitter on the sensor

Feedthrough

Clamping ring

Feedthrough
notches

Transmitter orientation and power supply

CAUTION!

Do not rotate the housing more than 360°. Excessive rotation can damage the wiring and

cause measurement error or flowmeter failure.

2.3 Rotating the user interface module on the transmitter (optional)

For easier access, you can rotate the user interface module (whether or not the transmitter
has an LCD display) up to 360° in 90° increments.

WARNING!

Shut off power to the transmitter before you remove the housing cover in a hazardous area, as this
could cause an explosion.

To rotate the user interface module on the transmitter:

1. Remove power from the unit.

10 Model 2400S Transmitters

Transmitter orientation and power supply

4 x Transmitter housing

cover screws (captive)

2 x User interface
screws (captive)

Transmitter housing
cover

User interface module

*Transmitter with aluminum housing shown. Procedure
for stainless steel housing is similar.

2. Remove the transmitter housing cover and user interface module using the following

steps (see Figure 2-2).

a. Loosen the four transmitter housing cover screws.

b. Remove the transmitter housing cover.

c. Loosen the 2 user interface screws.

d. Gently lift the user interface module, disengaging it from the user interface

connector on the transmitter.

3. Rotate the user interface module to the desired position and plug it into the user

interface connector on the transmitter.
Four user interface connectors are located on the back of the user interface module.

See Figure 2-3 for another view of the user interface connector on the transmitter.

4. Tighten the user interface screws.

5. Replace the transmitter housing cover and tighten the transmitter housing cover

screws.

6. Restore power to the transmitter if required.

Figure 2-2 Rotating the user interface module on the transmitter

Installation Manual 11

Transmitter orientation and power supply

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

2.4 Power supply requirements

Model 2400S Analog and Model 2400S PROFIBUS-DP transmitters can accept either AC or
DC power. The transmitter automatically recognizes the source voltage. Power supply
requirements are:

• AC power:

- 85–265 VAC

-50/60 Hz

- 4 watts typical, 7 watts maximum

• DC power:

- 18–100 VDC

- 4 watts typical, 7 watts maximum

The Model 2400S DeviceNet transmitter is powered from the DeviceNet network per the
DeviceNet specification. There is no need to connect separate power-supply wiring for the
Model 2400S DeviceNet transmitter. Skip to Section 4.

2.5 DC power requirements for Model 2400S Analog and PROFIBUS-DP transmitters

If you are using DC power with a Model 2400S Analog or PROFIBUS-DP transmitter, the
following requirements apply:

• At startup, the transmitter power source must provide a minimum of 1 A 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 A. (This assumes a single
transmitter per cable. Connecting multiple transmitters to a single cable should
generally be avoided.) To size the cable, see 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 W/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.

2

2

2

2

2

0,0136 Ω/meter

0,0228 Ω/meter

0,0340 Ω/meter
0,0460 Ω/meter

0,0680 W/meter

(1)

12 Model 2400S Transmitters

Transmitter orientation and power supply

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

MinimumSupplyVoltage 19.4V=

MinimumSupplyVoltag e 18V CableResistance CableLength× 0. 5A×()+=

Example

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

:

2.6 Wire the power supply

To wire the power supply:

1. Remove the transmitter housing cover and user interface module as described in

Section 2.3.

2. Unscrew the warning flap screw and raise the warning flap.

Figure 2-3 shows the warning flap in the open position.

3. Connect the power supply wires to terminals 9 and 10, as shown in Figure 2-3.

4. Ground the power supply to the transmitter’s internal grounding screw, shown in

Figure 2-3.

5. Lower the warning flap and tighten the warning flap screw.

6. (Optional). Install a user-supplied switch 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.

Installation Manual 13