Honeywell MagneW 3000 Plus Application Manual

L

MagneW 3000

PLUS

Smart Electromagnetic

Flowmeter Specification

and Application Guide

36-KI-29-02

1/98

T tal P lan t



Copyright, Notices, and Trademarks

 Copyright 1998 by Honeywell Inc.

Revision 1.0 – January 5, 1998

While this information is presented in good faith and believed to be accurate,
Honeywell disclaims the implied warranties of merchantability and fitness for a
particular purpose and makes no express warranties except as may be stated in its
written agreement with and for its customer.

In no event is Honeywell liable to anyone for any indirect, special or consequential
damages. The information and specifications in this document are subject to
change without notice.

TotalPlant, TDC 3000 and SFC are U.S. registered trademarks of Honeywell Inc.
Other brand or product names are trademarks of their respective owners.

Honeywell

Industrial Automation and Control

Automation College

2820 West Kelton Lane

Phoenix, AZ 85023

[phone]

ii MagneW 3000

PLUS

Specification and Application Guide 1/98

Table of Contents

INTRODUCTION.....................................................................................................................1

COMPONENTS......................................................................................................................1

PRINCIPLE OF OPERATION...................................................................................................2

HARDWARE CONFIGURATION ..............................................................................................2

FEATURES............................................................................................................................3

DETECTOR ...........................................................................................................................3

CONVERTER.........................................................................................................................3

OPERATOR INTERFACE .......................................................................................................4

DIAGNOSTICS .......................................................................................................................5

COMMUNICATIONS SUMMARY..............................................................................................5

SUMMARY OF MAGNEW 3000

WIRING SUMMARY.................................................................................................................7

Electrical Connection Considerations .................................................................................8

Cable Types......................................................................................................8

Laying of Cables................................................................................................8

Cable Lengths...................................................................................................8

Grounding.........................................................................................................8

Terminal Connections ..........................................................................................................9

Cabling for Remote Detector/Converter..............................................................................10

RANGING FUNCTION............................................................................................................1 1

SELECTION OF CORROSION RESISTANT MATERIALS.......................................................12

APPLICATION DATA WORKSHEET......................................................................................13

INSTALLATION PLANNING CONSIDERATIONS ....................................................................14

Environmental Conditions ...............................................................................................14

Fluid to be Measured.........................................................................................................15

Measured Liquid Flow Conditions.......................................................................................15

Detector Location in Piping................................................................................................1 6

Clearance for Maintenance.................................................................................................18

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FEATURES...................................................................6

SPECIFICATIONS ................................................................................................................19

Performance ...................................................................................................................19

Design ......................................................................................................................... .....1 9

Environmental and Operating Conditions ............................................................................2 3

DIMENSIONS25

ORDERING DATA AND SPECIAL INSTRUCTIONS.................................................................36

1/98 MagneW 3000

PLUS

Specification and Application Guide iii

Table of Contents

MODEL SELECTION GUIDES

MagneW 3000

PLUS

Integral Converter and MGG18D Wafer Style Detector,

Size 2.5-200mm..............................................................................36-KI-16-24

MagneW 3000

PLUS

Integral Converter and MGG18F Flange Style Detector,

Size 15-200mm...............................................................................36-KI-16-25

MagneW 3000

PLUS

Remote Converter .......................................................36-KI-16-26

MagneW 3000

PLUS

Remote Detector Wafer Type, Size 2.5-200mm .............. 36-KI-16-29

MagneW 3000

PLUS

Remote Detector Flange Type, Size 25-400mm ..............36-KI-16-30

MagneW 3000

PLUS

Remote Detector Wafer Type, Size 2.5-200mm .............. 36-KI-16-31

MagneW 3000

PLUS

Remote Detector Flange Type, Size 25-600mm ..............36-KI-16-32

MagneW 3000

PLUS

Submersible Detector Wafer Type, Size 15-200mm ........ 36-KI-16-33

MagneW 3000

PLUS

Submersible Remote Detector Flange Type,

Size 25-600mm...............................................................................36-KI-16-34

MagneW 3000

PLUS

Cables.............................................................................36-KI-16-35

MAGNEW 3000

PLUS

APPLICATION DATA SHEET............................................36-KI-08-01

iv MagneW 3000

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Specification and Application Guide 1/98

Figures and Tables

Figure 1 MagneW 3000

Figure 2 Principle of Operation.....................................................................................2

Figure 3 Typical SFC Connection to the 4 to 20 mA Loop...............................................4

Figure 4 Typical SFC Prompts.......................................................................................4

Figure 5 Digital Operator Panel Display (configured for % flow range)...............................4

Figure 6 MagneW 3000
Figure 7 Overview of MagneW 3000
Figure 8 Typical Wiring Connections for the MagneW 3000

Integral Flowmeters.........................................................................................9

Figure 9 Cable Length Versus Fluid Conductivity.........................................................10

Figure 10 Direct Direction, Automatic Dual Range Transfer Hysteresis.............................1 1

Figure 11 Direct/Reverse Transfer Hysteresis................................................................1 1

Figure 12 Wall Mounting Dimensions............................................................................25

Figure 13 2-inch Pipe Mounting Dimensions.................................................................2 6

Figure 14 Dimensions for Integral Model—Refer to Table 8.............................................27

Figure 15 Union Joint Dimensions – 2.5 mm to 15 mm (0.1 in. to 0.6 in.)..........................28

Figure 16 Hose Joint Dimensions – 2.5 mm to 15 mm (0.1 in. to 0.6 in.)...........................29

Figure 17 IDF/Tri-Clamp Dimensions – 2.5 mm to 15 mm (0.1 in. to 0.6 in.).......................30

Figure 18 Wafer Dimensions – 2.5 mm to 15 mm (0.1 in. to 0.6 in.) and 25 mm to

200 mm (1 in. to 7.9 in.)—Refer to Table 8.....................................................31

Figure 19 Flange Dimensions – 25 mm (1 in.).................................................................33

Figure 20 Flange Dimensions – 40 mm to 140 mm (1.6 in. to 3.9 in.) and 150 mm to

600 mm (5.9 in. to 23.6 in.)—Refer to Table 9.................................................34

Table 1 Available Models.............................................................................................3

Table 2 Summary of Major MagneW 3000

Table 3 Summary of Range Function Options.............................................................11

Table 4 Characteristics of Wet Contact Materials..........................................................12

Table 5 Summary of Installation Considerations..........................................................1 4

Table 6 Specifications for MagneW 3000

Table 7 Minimum and Maximum Ranges.....................................................................24

Table 8 Dimensions for Figures 14 and 18..................................................................32

Table 9 Dimensions for Figure 20..............................................................................3 5

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Components..................................................................1

PLUS

Communications Hierarchy for TPS..................................5

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Wiring Requirements ...................................7

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Remote and

PLUS

Features.............................................6

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..........................................................19

1/98 MagneW 3000

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Specification and Application Guide v

Introduction

The MagneW 3000
electromagnetic flowmeter consists of a
detector/converter combination that
operates on the principles of Faraday’s
Law. Based on Honeywell’s proven
MagneW 3000 flow measurement
technologies, the
expanded flow rate and process
measurement capabilities when used
with the new range of

PLUS

PLUS

detectors offer

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converters.

The MagneW 3000

• a wide range of wafers and flanges,

• IDF and Tri-Clamp couplings,

• local data setting device,

• batch control with preset counter trip,

• automatic dual-range switchover with
reverse flow,

• high and low alarm settings,

• continuous self-diagnostics, and

• remote communication with SFC.

The MagneW 3000
TotalPlant Solution (TPS) system.

TPS is the evolution of TDC 3000

PLUS

offers

PLUS

is part of the

X

.

Integral Converter/Detector

Components

As shown in Figure 1, the MagneW 3000

PLUS

flowmeter includes a detector and
converter available in an integral-type
or a remote-type configuration.

With an integral-type configuration, the
converter mounts directly onto the
detector.

With a remote-type configuration, the
detector is connected by cables to the
converter which can be mounted up to
300 meters (984 feet) away, depending
on the application.

Remote Converter

8888888888888888888888

88

8888888888888888888888

Remote Detector

88

Figure 1—MagneW 3000

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Components

1/98 MagneW 3000

23441

PLUS

Specification and Application Guide 1

Principle of Operation

The MagneW 3000
operating principle is based on
Faraday’s Law:

PLUS

flowmeter’s

The voltage induced
across any conductor, as it moves at
right angles through a magnetic field, is
proportional to the conductor’s velocity.

The detector fits on the pipe and
measures the flow. The detector’s
excitation coils receive power from the
converter. These coils create a
magnetic field at a right angle to the flow
direction.

As the conductive liquid flows through
this magnetic field, a voltage which is
proportional to the liquid flow velocity is
produced across the electrodes. The
detector sends these voltage signals to
the converter. Refer to Figure 2.

The converter, which holds the circuitry
that calculates and displays the flow
data, converts the detector signals into
outputs for recording and control
instrumentation.

The relationship between the liquid flow
velocity and the voltage is expressed in
Faraday’s formula:

E is proportional to V x B x D

where:

E = Induced Electromagnetic

Voltage
Voltage generated by the flow of
the conductive liquid through the
magnetic field of the flowmeter.

V = Average Flow Velocity (m/s)

The average velocity of the liquid
through the cross section of the
flowmeter.

B = Magnetic Flux Density

The strength of the magnetic
field generated by the field coils.

D = Inside Diameter of the Pipe

The distance between the
electrodes which detect the
signal voltage (E) that is
generated.

This means that the voltage (E)
depends on the average flow velocity
(V), the magnetic flux density (B), and
the inside diameter of the pipe (D).

Detector

Core

Exciting
current

Power
Supply

Liquid Flow
(average velocity V)

Figure 2—Principle of Operation

Measuring Pipe
(inside diameter D)

Magnetic Field
(flux density B)

Converter

Electrode (emf E)

Output
Signal

21701

Hardware Configuration

The MagneW 3000

• an integral unit—converter mounted on detector, or

• a remote converter/remote detector.

The detector is mounted to the process piping, using one of the following types of
connections:

• wafer,

• flange,

• union,

• hose, or

• IDF or Tri-clamp.

The type of connection used is dependent upon diameter size and the application.
Where applicable, gaskets are supplied unless the grounding rings are made of
SUS material.

If using the remote converter/remote detector combination, either a wall- or pipe­mounting kit for the converter and cables to connect the converter and detector
are needed.

PLUS

flowmeter is available as either:

2 MagneW 3000

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Specification and Application Guide 1/98

Features

)

Liquid crystal display with backlighting
(optional)

• In direct sunlight or in a dark room,
the backlit liquid crystal display (LCD)
can be read easily.

• Simultaneous display of
instantaneous flow volume in %,
actual flow volume in a variety of
engineering units, and indication of
total flow volume.

• When an integral model is installed on
vertical or horizontal pipes, its
display can be rotated through 90
degrees for better visibility.

Setting parameters by infrared touch
sensor (optional)

• Parameters can be set without
opening the cover of the converter.

• A special security feature has been
incorporated to prevent inadvertent
operation of the infrared touch
sensor.

Field-replaceable electrodes

Electrodes are field-replaceable.

High performance lining

• High-quality PFA lining has excellent
electrical and heat resistant
characteristics, low surface friction,
and high anti-adhesive properties.

• The PFA lining is particularly
applicable for measurement of sticky
pulps and gypsum slurries.

• PFA linings with diameter ranges from

2.5 to 600 mm (0.1 to 23.6 in.)
available, making selection of the
best lining easy for a wide variety of
applications.

• The successful, embedded punch
plate offers proven performance
under conditions of rapid thermal
change and/or negative pressure.

Rugged detector structure

• A stainless steel case is used for
diameters of 2.5 to 200 mm (0.1 to

7.9 in.).

A wide variety of piping connections

• A hose, union joint, or clamp can be
selected for very small diameter
models [diameters of 2.5 to 15 mm
(0.1 to 0.6 in.)].

• A flange structure is available for
diameters of 25 to 600 mm (1 to

23.6 in.).

• A wafer construction can also be
selected for diameters of 2.5 to
200 mm (0.1 to 7.9 in.).

• Diameters of 65, 125, and 450 mm
(2.6, 5, and 17.7 in.) have been
added to the existing product line.

Interchangeability

Can be used in combination with
previous model detectors and
converters.

Please consult your Honeywell
representative for details.

Detector

Because the detector does the actual
measuring of the flow rate, it serves as
the primary element for MagneW 3000

PLUS

flowmeters.

The detector measures the current
generated by the conductive fluid as it
moves through a magnetic field and
sends this signal to the converter.

Available models are listed in Table 1.

Converter

The converter takes the electromotive­force signal from the detector and
converts it to the instantaneous flow
rate. That flow rate is output to the
control equipment as either an analog or
digital signal.

The converter also provides optional
pulse outputs to drive counters and
totalizers.

The converter has an optional Digital
Operator Panel (DOP) which indicates
the instantaneous flow rate or the
integrated flow rate.

Because the converter is a current
output-based device, the flowmeter can
be configured and operated using the
SFC. Or, the flowmeter can be
configured and operated locally using
the DOP.

The converter also supports the digital
enhanced (DE) mode for direct digital
communications with Honeywell’s TPS
system.

Available models are listed in Table 1.

Table 1—Available Models

DETECTORS

Model Lining Pipe Connection Diameter—mm (inches

General/watertight PFA Union/hose/clamp 2.5 to 15 (0.1 to 0.6)
General/watertight PFA

General/watertight PFA

General/submersible PFA Union/hose/clamp 15 (0.6)
General/submersible PFA

General/submersible PFA

General Integral or remote type

1/98 MagneW 3000

Polyurethane rubber

Polyurethane rubber
Chloroprene rubber

Polyurethane rubber

Polyurethane rubber
Chloroprene rubber

PLUS

CONVERTERS

Specification and Application Guide 3

Wafer 2.5 to 200 (0.1 to 7.9)

25 to 200 (1 to 7.9)

Flange 25 to 600 (1 to 23.6)

25 to 200 (1 to 7.9)
250 to 600 (10 to 23.6)

Wafer 15 to 200 (0.6 to 7.9)

25 to 200 (1 to 7.9)

Flange 250 to 600 (10 to 23.6)

25 to 200 (1 to 7.9)
250 to 600 (10 to 23.6)

Operator Interface

The MagneW 3000

PLUS

flowmeter can
be configured, communicated with, and
operated using

• a hand-held Smart Field

Communicator (SFC),

• the flowmeter’s optional Digital

Operator Panel (DOP), and/or

• Honeywell’s TPS system.
Communications can be quickly

established with the MagneW 3000

PLUS

through the SFC. It connects to
the output terminals on the converter or
anywhere along the 4 to 20 milliampere
current line. Refer to Figure 3.

Operating parameters can be
configured or operating data can be
read by initiating simple keystroke
sequences on the SFC. As shown in
Figure 4, English language prompts in a
two-line display guide the entry of
configuration data such as:

• Pulse Parameters

• Detector Parameters

• Low Flow Cutoff

• Damping Time

• Range Parameters

• Input and Output Options

• Failsafe Mode
Pertinent operating data values are

displayed in percent or user-selected
engineering units for volume flow, mass
flow, or time.

The optional DOP, allowing local
configuration and operation of the
flowmeter, contains

• a 7-segment, 6-digit main display,

and

• a 16-digit, 2-line auxiliary display.

Analog Mode

+

Red

External
Power
Supply
24 Vdc

+
_

4-20 mA
Output 1

–

250 Ω

Black

L

SFC
(Model
STS103)

DE Mode

+

Process Manager (PM)/
Advanced Process Manager
(APM)/High-Performance
Process Manager (HPM)
internal 24/42 Vdc power
supply with 250Ω resistor

_

–

Black

L

SFC
(Model
STS103)

Figure 3—Typical SFC Connections to the 4 to 20 mA Loop

Red

+

Digital
Output 1

MagneW

PLUS

Integral Model
(or
Remote Model)

MagneW

PLUS

Integral Model
(or
Remote Model)

23442

The main display indicates the
instantaneous flow rate in percent of
span, the instantaneous actual flow
volume in selected engineering units,
and the totalized flow volume (when
pulse output is selected).

Figure 4—Typical SFC Prompts

The auxiliary display allows the operator
to monitor actions for entering/
changing configuration, operation, and
calibration data, as well as checking
diagnostic functions. These actions are
performed using the DOP’s four infrared
touch sensor keys. Refer to Figure 5.

In the DE (Digital Enhanced) mode, the
flowmeter can communicate digitally
with Honeywell’s TPS, and through a
custom field termination assembly
(FTA) to Allen-Bradley controllers.

Figure 5—Digital Operator Panel Display (configured for % flow range)

4 MagneW 3000

DE CONF SFM 1001
F/S = B/O HI

23443

Main
Display

%00.

0.00 m3/h

Auxiliary

0000123456 TOTAL

PLUS

Specification and Application Guide 1/98

Display

23444

Diagnostics

k

k

In the event of a malfunction,
diagnostic messages speed up the
troubleshooting process. Messages are
available locally when using the optional
DOP and via the SFC.

When operating in the DE mode, similar
interface operations are possible
through displays at the Universal

X

Station
Station (GUS) in the TPS system.

(UXS) or the Global User

Digital Communications

Summary

The SFC (model STS103) can be used
to “talk” to a flowmeter operating in
either the analog or the DE (Digital
Enhanced) mode. The SFC is
connected across the current line at the
flowmeter or any convenient point in the
line. See Specification 34-ST-03-55 for
more details about the SFC.

To “talk” to a flowmeter through displays
at the Universal Station or GUS, the
transmitter is connected to a Smart MV
Transmitter Interface Input/Output
Processor (STI IOP) in the Process
Manager (PM), Advanced Process
Manger (APM), or High-Performance
Process Manager (HPM) through an
FTA as shown in Figure 6. The flowmeter
must be in the DE mode to communicate
with the STI IOP.

Also, through a custom FTA the
flowmeter, in the DE mode, can
communicate with Allen-Bradley
controllers.

Universal
Station
or Global
User
Station
(GUS)

Network

Interface

Module

Universal

Networ

Control

DE/ Digital

Communications

Process Manager or
Advanced Process Manager
(or High-Performance Process
Manager)

Link

TPS Process Networ

Smart MV Transmitter
Interface I/O Processor

STI FTA

L

SFC (Model

MagneW
Integral Model
(or
Remote Model)

Figure 6—Typical MagneW 3000

1/98 MagneW 3000

PLUS

Specification and Application Guide 5

PLUS

PLUS

Communications Hierarchy for TPS

STS103)

23445

Summary of MagneW 3000

PLUS

Features

Table 2 provides a summary of major MagneW 3000

Table 2—Summary of Major MagneW 3000

Feature Function

Operating principle based on Faraday’s Law Provides accurate and reliable measurement of process fluid flow rate.

Flange-mounted detector Provides a variety of process connections to match installation

4 to 20 milliampere signal or digital-enhanced
output

SFC and TPS communications Provide means to configure, operate, and troubleshoot MagneW through

Optional built-in counter for pulse output
models

Optional 1- or 2-contact input • External 0% lock input: Locks the flow rate signal (display, analog

PLUS

features and functions.

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Features

The unit of flow indication can be in percentage, volume flow, mass flow, or
time.

requirements.
Provides signal proportional to flow measurement in analog or digital form

depending upon configuration.

SFC and Universal Station or GUS in TPS system.

• Totalizer: Depending on pulse direction setting, it totals one count at a
time, for forward and reverse flows.

• Totalizer with preset function: A preset value (target total) can be set
between 000000 and 999999. Each forward and reverse flow signal is
counted.

• Forward/reverse flow difference totalizer: The difference in flow volumes
in the forward and reverse directions is calculated and counted.

output, and pulse output) at 0%.

• External zero adjustment input: Allows a zero point adjustment from a
remote location.

• External range switching input: Factory setting is
– Range No. 1 or forward direction when opened
– Range No. 2 or reverse direction when closed.

• Built-in counter reset input (optional for pulse output model): Reset
occurs when contact is ON for 0.2 seconds or more. Counting starts
from counter reset value when contact turns OFF.

Optional 1- or 2-contact output • Alarm contact output: An alarm is output when one of the following

abnormal states occurs.
– flow value alarm
– self-diagnosis—coil disconnection, ROM error, RAM error, NVM error,
ADC error, or
– empty pipe detection.

• Range switching output: Factory setting is
– Range No. 1 or forward direction—when open
– Range No. 2 or reverse direction—when closed

• Counter preset status output (for pulse output model): Activates when
the built-in counter reaches the preset value.

• Self-diagnosis alarm output: Activates when the self-diagnosis function
detects an abnormality.

• Empty pipe detection alarm output (with empty-status detection):
Activates when the fluid level in the detector goes below the electrode
level. Alarm is available only when the electrical conductivity of the
liquid is greater than 150µS/cm.

• High/Low limit alarm: Activates when the flow volume exceeds the set
upper and lower limit values.

• Two-stage flow value alarm output (with two contact outputs): An alarm­actuating contact is output when the simultaneous flow value exceeds
the set two upper limits (H and HH) or the two lower limits (L and LL).

6 MagneW 3000

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Specification and Application Guide 1/98

Wiring Summary

External excitation and signal cables are required when connecting the remote
detector/converter model.

Figure 7 provides an overview of possible wiring requirements for either model.

Integral Converter/Detector

Power supply
Vac or 24 Vdc

Pulse output

Contact input/output

4 to 20 mA/DE output

8888888888888888888888

88

Remote Converter
and
Remote Detector

Power supply
Vac or 24 Vdc

Pulse output

Contact input/output

4 to 20 mA/DE output

Figure 7—Overview of MagneW 3000

8888888888888888888888

PLUS

Wiring Requirements

88

Signal cable

Excitation cable

23446

1/98 MagneW 3000

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Specification and Application Guide 7

Electrical Connection Considerations

For electrical connections of the
converter/detector the following should
be checked:

• Cable types

• Laying of cables

• Cable lengths

• Grounding

Cable Types

The standard cables for the instrument
are as follows:

Signal cable:

•
double-shielded cable

Excitation cable:

•
cabtyre cable

If standard cables are unavailable,
contact Honeywell for
recommendations.

Laying of Cables

• Do not lay the cables near a motor, a
transformer, or a large-current cable
which may cause induction noise.
Lay the cables 1 meter (3.3 feet) or
more away from heavy-duty power
cables.

• Lay the signal cable in a metallic
conduit, a flexible tube, or a duct,
separately from the excitation current
cable or any other power cables.

• Wire with electrical tube and duct to
keep out water and protect the wire
from external damage. Lay the tube
so that no water gets into the unit.

• Use a waterproof gland at the conduit
connection.

• Do not employ any junction point for
connection of the signal cable or the
exciting cable between the detector
and the converter. When it is
unavoidable to employ a junction
point, use Cable Junction Box (Part
No. 80720002-000) which has been
designed specifically for this
purpose.

• Do not short the excitation current
terminals X and Y of the converter.

2-core individually

2-core chloroprene

Cable Lengths

• The length of the cable between the
detector and the converter depends
on the electrical conductivity (µS/m)
of the fluid to be measured. (Refer to
Figure 9 on page 10.)

In general, the electrical conductivity
of potable water or sewage water is of
a level of 10000 µS/m (100 µΩ/cm).
Therefore, for a detector of 15 mm
(0.6 in.) diameter or over, the
maximum allowable cable length is
300 meters (984 feet).

• Signal Cable
If a signal cable is required to be laid

more than 500 meters (1640 feet),
select a cable cross section so that
the voltage drop in the cable does not
exceed 5V.

To calculate the excitation cable
cross section area, use the following
formula:

A (cross section area: mm

35.6 x L (cable distance: m) x 0.4 (A)
1000 x 5 (V)

• Current output cable (4-20 mA)
The allowable current output load of

the converter is 0 to 600Ω. The sum of
the cable resistance plus load
resistance must be within this range.
With a 2 mm
cable resistance for both-ways
between 1 km (3.281 ft.) distance is
approximately 20Ω. When the
receiver load is 400Ω, the current
output cable can be extended up to 10
km (6.2 miles).

• Pulse output cable
Can be extended up to 1 km

(3,281 ft.).

Grounding

• The grounding circuit should be less
than 100Ω.

• At the converter side, ground the
meter at the E terminal of the terminal
block or the ground terminal of the
case. The E terminal and the ground
terminal are mutually connected in the
unit.

2

(0.003 in2) cable, the

2

) =

8 MagneW 3000

PLUS

Specification and Application Guide 1/98

Terminal Connections

Figure 8 shows typical wiring connections for both the integral and remote types.

REMOTE CONVERTER

ABCXY

TERMINAL CONNECTOR BOX

SIG EX

REMOTE
DETECTOR
TERMINALS

STATUS IN

STATUS IN1

OR

STATUS OUT2

OR

*

STATUS OUT

STATUS IN2

STATUS OUT1

—1-contact input and 1-contact output
—2-contact inputs
—2-contact outputs

**

E

+–+–

POWER
LN

Not used

XY

Contact input,

Class 3 grounding

input 1, or output 2

Contact output,

SB SA C A

I.OUTP.OUT

+–+–

Flow rate

input 2, or output 1

signal input

B

E SB SA C A

Not used

Power supply

AC or DC 24V

+–+–

WARNING

LN

XY

Excitation output

Pulse output

NOTE: FOR INTEGRAL CONVERTER/DETECTOR:

Terminal symbols X, Y, SB, SA, A, B, C, and E are not indicated
because these terminals are not used.

Figure 8—Typical Wiring Connections for the MagneW 3000

+–+–

Current output

PLUS

Remote and Integral Flowmeters

B

Flow rate

signal input

Not used

23447

1/98 MagneW 3000

PLUS

Specification and Application Guide 9

Cabling for Remote Detector/Converter

Honeywell offers the excitation and signal cables as a set under a separate model
number (Model Number KIW-XXX-XXX). Commercially available cables can be
used. The selection of the signal cables depends on certain conditions:

• fluid conductivity,

• length of cable, and

• diameter of the detector.
Figure 9 shows the relation between fluid conductivity and cable length.

The shaded portions are the
areas where commercially
available cables or cables
without shield drives can be
used.

Cable
Length

mft

300 984
200 656

100 328

50 164

20 65.6
15 49.2

10 32.8

5 16.4

2 6.6

1 3.3

mft

300 984
200 656

100 328

Detector Sizes: 2.5 and 5mm (0.1 and 0.2 in)

3 5 10 20 50 100 200 500 1000

Electrical Conductivity (µΩ/cm)

Detector Sizes: 10mm (0.4 in) and greater

Cable
Length

NOTE: Empty pipe detection alarm is available only when the
electrical conductivity of the fluid is greater than 150 µS/cm.

Figure 9—Cable Length Versus Fluid Conductivity

50 164

20 65.6
15 49.2

10 32.8

10 MagneW 3000

5 16.4

2 6.6

1 3.3

3 5 10 20 50 100 200 500 1000

Electrical Conductivity (µΩ/cm)

PLUS

Specification and Application Guide 1/98

23448

Ranging Function

The range function allows the operator to define the basic operating
characteristics of the flowmeter. Table 3 explains the various function options
that are available.

Table 3—Summary of Range Function Options

Analog

Type Description Output Pulse Display

Single Range • Direct flow only with

one 4 to 20 range

Forward:
4-20 mA dc

Reverse:

Proportional Positive No effect

Not delivered Minus
–20%
(0.8 mA)

Direct, Dual
Range, Auto
Selection

• Direct flow only with
two ranges

• Switching between

Both 4 to
20 mA dc

Pulse weight for
both ranges is
the same

measuring ranges is
automatic
(Hysteresis is
illustrated in Figure

10.)

Direct, Dual
Range, External
Selection

• Direct flow only with
two ranges

• Switching between

Both 4 to
20 mA dc

Pulse weight for
both ranges is
the same

ranges is done
externally

Direct/Reverse,
Dual Range,
Auto Selection

• Direct and reverse
flow with two ranges

• Switching between
measuring ranges is

Both 4 to
20 mA dc

Pulse weight is
same
regardless of
flow direction

automatic
(Hysteresis
illustrated in Figure

11)

Minus sign
appears
when flow is
in reverse
direction

Contact

Input Output

No effect Factory setting

1st range: open*
2nd range:

closed*

Range select
1st range:

open

2nd range:

closed

Factory setting
1st range: open*
2nd range:

closed*
contact outputs
(optional)

No effect Factory setting

direct: open*
reverse: closed*

Direct/Reverse,
Dual Range,
External
Selection

• Direct and reverse
flow with two ranges

• Switching between
ranges is done
externally

*Reverse setting is also possible.

Output

20 mA

4 mA

Adjustable by 0-20%

Figure 10—Direct Direction, Automatic
Dual Range Transfer Hysteresis

Input

23449

Both 4 to
20 mA dc

Pulse weight is
same
regardless of
flow direction

Minus sign
appears
when flow is
in reverse
direction

Output20 mA

Reverse
direction

With respect to direct
direction range,
adjustable by 0-20%

Figure 11—Direct/Reverse Transfer Hysteresis

Range select
direct: open
reverse:

closed

Factory setting
direct: open*
reverse: closed*
contact output
(optional)

Direct
direction

Input

With respect to reverse
direction range,
adjustable by 0-20%

23450

1/98 MagneW 3000

PLUS

Specification and Application Guide 11

Selection of Corrosion-

Resistant Materials

The corrosiveness of fluids used under
practical conditions may vary according
to the type and amount of impurities
present, the operating temperatures,
the variances in flow rate, and the
concentration of fluids.

Selection of Lining Materials

The lining materials for use in the
MagneW 3000
PFA, alumina ceramic, polyurethane
rubber, and chloroprene rubber. Their
general characteristics are shown in
Table 4.

PLUS

include Teflon

Selection of Materials for Electrodes

Selection of Ground Ring Material

The same material for ground rings as
for electrodes should be selected since
both come in contact with fluids.

and Wet Contact Rings

The general characteristics of electrode
materials is shown in Table 4.

Table 4—Characteristics of Wet Contact Materials

Material Main Component Characteristics Recommended Environment

Lining Materials

Polyurethane rubber Polyurethane A synthetic elastic rubber. Excellent

Teflon PFA Tetrafluoroethyl

Ceramic Alumina ceramic

ene resin

Al

: 99.7%

2O3

abrasion resistance. Little chemical
resistance.

A synthetic polymer containing fluorine
(F) in the molecule. Resistant to almost
all chemicals except for high­temperature fluorine, molten alkalis,
and some halogen compounds.

Excellent heat resistance together with
a low friction characteristic and non­adhesiveness.

Excellent friction resistance. Suited for
high temperatures and high pressures.
Chemical resistance is slightly lower
than that of Teflon PFA. Weak to alkali
fluids.

Temperature:

+122°F)

Pressure:

NOTE: Provides heat resistance in hot
atmospheres.

–40 to +50°C (–40 to

426 psi maximum

Temperature:

–40 to +100°C (–40 to +212°F) for
diameters 2.5 to 10 mm (0.1 to 0.4 in.)
–40 to +160°C (–40 to +320°F) for
diameters 15 to 200 mm (0.6 to 7.9 in.)
–40 to +100°C (–40 to +212°F) for
diameters 2.5 to 10 mm (0.1 to 0.4 in.)

Pressure:
Temperature:

(–40 to +356°F)

Pressure:

Refer to Table 5, page 15.

–40 to +180°C

1 to 40 kg/cm
14 psi maximum

2

Chloroprene rubber Chloroprene The friction and chemical resistances

are almost comparable to those of
polyurethane rubber.

Electrode Materials

SUS316L Cr : 17%

Ni : 13%
Mo : 2.25%
C : <0.03%
Fe : Remainder

Titanium Ti : >99.3% Resistant to corrosion in an oxidizing

Hastelloy C-276 Mo : 16%

Cr : 16%
Fe : 5%
W : 4%
Ni : Remainder

Resistant to corrosion in a weak alkali
or acidic atmosphere.

Unusable in inorganic and organic
acids, chlorides, etc.

atmosphere.
In particular, usable in the presence of

chlorine ions. Unusable in sulfuric acid,
nitric acid, etc.

(The empty-detection function of the
converter cannot be used.)

A wide range of uses since it is usable
in moderately oxidizing and reducing
atmospheres.

Weak to sulfides, sulfuric acid, etc.

Temperature:
Pressure:

Water (tap and sewage) and weak alkalis
(such as caustic soda of 50% or less)

A variety of chloride solutions
(ammonium chloride, potassium
chloride, ferrous chloride, etc.), sea
water, etc.

A variety of organic and inorganic acids,
alkalis, etc.

–10 to +70°C (14 to 158°F)

142 psi maximum

12 MagneW 3000

PLUS

Specification and Application Guide 1/98

Table 4—Characteristics of Wet Contact Materials, continued

Material Main Component Characteristics Recommended Environment

Electrode Materials (continued)

Tantalum

For Teflon PFA
lining:

Ta : >99.5%

For ceramic use:

Ta : 90%
W : 10%

Resistant to corrosion in strongly
oxidizing and reducing atmospheres,
but unusable in alkalis, fluorides, and
fuming sulfuric acid.

Because an insulating film may form on
these electrodes, pay special attention
to process conditions when selecting
this material.

(The empty-detection function of the
converter cannot be used.)

Concentrated hydrochloric acid, sulfuric
acid, nitric acid, aqua regia, etc.

Platinum-iridium alloy Pt : 90%

Ir : 10%

Tungsten carbide Highly abrasion-resistant and causes

Nickel Highly corrosion-resistant against

Zirconium Corrosion-resistant against various

Resistant to corrosion in almost all
acids and alkalis except for aqua regia
and ammonium salts. Very expensive.

less slurry noise. Cannot be used for
corrosive fluids.

strong alkali fluids, especially against
caustic soda and fluoric acid as
compared with corrosion resistances of
other metals.

chemicals, especially against sulfides.

Application Assistance

While the technical information provided in this guide is usually adequate for
sizing a meter for a particular application, Honeywell has Application Assistance
available. An Application Data Sheet (36-KI-08-01) is included at the end of this
document. When completed it provides the information necessary for a thorough
review by our Field Instrument Application Engineers. Using your application and
installation information, process fluid data, and cost and operation objectives,
these engineers will apply their wide industry experiences and various application
software programs to assist in determining the most cost-effective flow solution
available. To use this Honeywell service, please complete the Application Data
Sheet and forward it to your Honeywell Representative for submission to Field
Instrument Application Engineering.

Phosphoric acid, nitric acid, fluoric acid,
hydrochloric acid, sulfuric acid, alkalis,
etc.

Cement slurry, muddy slurry, filthy
slurry, earth/sand slurry, etc.

Caustic soda, fluoric acid, alkali fluids,
etc.

Copper sulfide, formic acid, potassium
hydroxide, etc.

1/98 MagneW 3000

PLUS

Specification and Application Guide 13

Installation Planning Considerations

w

e

The MagneW 3000
and operation, the following installation conditions should be reviewed:

• Environmental conditions

• Fluid to be measured

• Measured liquid flow conditions

• Detector location in piping

• Clearance for maintenance and inspection

PLUS

planning considerations are summarized in Table 5. To ensure proper flowmeter selection

Table 5—Summary of Installation Considerations

Factor Consideration

Environmental conditions The following should be considered when installing the MagneW 3000

• The ambient temperature should be within the following ranges:
–

Integral model:

–25 to +60°C (–13 to +140°F)

–

Remote converter:

–25 to +60°C (–13 to +140°F)

–

Remote detector:

PLUS

.

PFA lining:

–30 to +80°C (–22 to +176°F)

Polyurethane rubber or Chloroprene rubber lining:

–30 to +60°C (–22 to +140°F)

• Whenever possible, the flowmeter should not be exposed to direct sunlight, rain, or other
unfavorable weather.

• The flowmeter should be installed as far from any pump in the line as practical, so that the flo
does not pulsate.

• The flowmeter must not be subjected to severe vibration, as equipment damage could result.

• The flowmeter must not be subjected to a highly corrosive atmosphere, as equipment damag
could result.

• The flowmeter must be installed sufficiently apart from high-current power lines, motors,
transformers, or any other source of electromagnetic interference.

14 MagneW 3000

PLUS

Specification and Application Guide 1/98

Table 5—Summary of Installation Considerations, continued

.

Factor Consideration

Fluid to be measured The fluids to be measured must fall within MagneW 3000

• electrical conductivity—3µS/cm or greater

• temperature

• pressure

kPapsig This area (120 to 160°C/

+2937

+426

+1958

+284

Pressure

+142

LEGEND

+979

-14

-97

-40 0 +50 +100 +160+120

°C

-40 +32 +122 +212 +320+248

°F

Code Liner

Polyurethane
Rubber

Teflon PFA

Teflon PFA
Teflon PFA

Chloroprene
Rubber

Temperature (Degrees)

Detector Size

mm (in.)

25 to 200
(1 to 7.9)

2.5 to 10
(0.1 to 0.4)

15 to 200
(0.6 to 7.9)

250 to 600
(9.8 to 236)

250 to 600
(9.8 to 23.6)

PLUS

specifications for:

248 to 320°F) applies to
remote detectors only with
PFA liner and detector
size 15 to 200 mm (0.6 to

7.9 inches)

Temperature Range

°C °F

–40 to 50

–40 to 100

–40 to 160

–40 to 120

–10 to 70

–40 to 212

–40 to 320

–40 to 248

14 to 158

–40 to 122

23451

Measured liquid flow
conditions

The following liquids may not be successfully measured by MagneW 3000

PLUS

, even if their

conductance, temperature, and pressure fall within its limits.

• Fluids that have sufficient conductivity at high temperatures but not at room temperature,
approximately 20°C (68°F).

EXAMPLE: fatty acids and soap

• Fluids that contain surface active agents

EXAMPLE: shampoo, rinse, and soap material liquids

• Conductive adherents

EXAMPLE: deposition of rosin plus conductive material

• Insulating adherents

EXAMPLE: oil, kaolinite, kaolin, and calcium stearate

When determining the piping location for the flowmeter, make sure the measured liquid flow
meets the following conditions:

• The fluid has the required conductivity for measurement and the distribution of conductance
is uniform.

• The fluid is electrochemically uniform. For example, if two fluids are mixed at an upstream
point, the two fluids should be uniformly mixed by the time they reach the measurement point

• The distribution of suspended solids is uniform.

1/98 MagneW 3000

PLUS

Specification and Application Guide 15

Table 5—Summary of Installation Considerations, continued

Factor Consideration

Detector location in
piping

The detector should be installed in the pipeline where it will always be filled with the measured
fluid.

Not filled with liquid

Air may be entrapped

May not be
filled with liquid

Good
location

Pump

Good location

23452

The face-to-face space between the flanges must be sufficient for the given detector size.
Never force the detector into an insufficient face-to-face space.

16 MagneW 3000

23453

PLUS

Specification and Application Guide 1/98

Table 5—Summary of Installation Considerations, continued

r

Factor Consideration

Detector location in
piping (continued)

Straight pipe sections must be provided on the upstream and downstream sides of the detector
as shown.

UPSTREAM SIDE

(D = Nominal diameter of detector)

90-degree elbow

5D or greater

Sluice valve (full open)

5D or greater

Expansion pipe with cone angle 15 degrees
or more (if the cone angle is less than 15
degrees, can be regarded as a straight pipe
section)

Reducer pipe (can be regarded
as a straight pipe section)

5D or greater

Tee

5D or greater

Valve other than a sluice type

5D or greater

10D or greater

DOWNSTREAM SIDE

(D = Nominal diameter of detector)

2D or greater (minimum 2D if drift current or the like is possible)

23454

The process piping with flanges must be straight and centered. Below are examples of imprope
alignments.

Tilted pipe

Off-centered

23455

1/98 MagneW 3000

PLUS

Specification and Application Guide 17

Table 5—Summary of Installation Considerations, continued

Factor Consideration

Clearance for
maintenance

Sufficient space must be provided for maintenance of the electrodes and inspection of the
terminals, and for operation of the converter with an integral type flowmeter.

Suggested minimum clearances are provided below.

500 mm

19.7 in.

400 mm

15.8 in.

500 mm

19.7 in.

400 mm

15.8 in.

Integral type

400 mm

15.8 in.

400 mm

15.8 in.

Remote detector

23456

18 MagneW 3000

PLUS

Specification and Application Guide 1/98