Endress+Hauser magphant Operating Manual

BA 025D/06/e/03.97
No. 50078353

valid for software-version
V1.00.XX

magphant

Electromagnetic
Flow Monitor

Operating Manual

AUTHORIZED DISTRIBUTOR:
InstrumentsAndControl.com
Houston, Texas USA
[e-mail]
832-615-3588

Safety Instructions

The following safety instructions must always be carefully observed!

Correct Usage

• The Magphant flow monitor may only be used for flow measurement of conductive liquids.

• The Magphant flow monitor is designed and checked according to the regulations in force

according to EN 61010 (VDE 0411, "Protection Measures for Electronic Measurement,
Control, Regulation and Laboratory Equipment”). A hazardous situation may occur if the
instrument is not used for the purpose it was designed
or is used incorrectly.

Please carefully note the information provided in this
Operating Manual indicated by the pictograms:

• The manufacturer assumes no liability for damage caused by incorrect use of the instrument.

Personnel for Installation, Start-up and Operation

• Mounting, electrical installation, start-up and maintenance of the instrument may only be

carried out by trained personnel authorised by the operator of the facility.
Personnel must read and understand this Operating Manual before carrying out its
instructions.

• The instrument may only be operated by personnel who are authorised and trained by the

operator of the facility. All instructions in this manual are to be observed.

• With special fluids, including those used for cleaning, E+H will be pleased to supply infor-

mation concerning the chemical resistance properties of wetted parts.

• Ensure that the measuring system is correctly wired up according to the wiring diagrams.

The flowmeter is to be grounded.

Repairs, Dangerous Chemicals

The following procedures must be carried out before a Magphant is sent to Endress+Hauser for
repair:

• A note must always be enclosed with the instrument, containing a description of the fault,

the application and the chemical and physical properties of the product being measured.

• Remove all residue which may be present. Pay special attention to the gasket grooves and

crevices where fluid may be present. This is especially important if the fluid is dangerous to
health, e.g. corrosive, carcinogenic, radioactive, etc.

• No instrument should be returned to us without all dangerous material being removed first

(e.g. in scratches or diffused through plastic).

Incomplete cleaning of the instrument may result in waste disposal or cause harm to personnel
(burns etc.). Any costs arising from this will be charged to the owner of the instrument.

Technical Improvements

The manufacturer reserves the right to modify technical data, to reflect development progress,
without prior notice. Your local E+H Sales Office will supply you with all current information and
any updates to this Operating Manual.

Safety Instructions Magphant

2 Endress+Hauser

Table of contentsTable of contents

Safety Instructions . . . . . . . . . 2

1. System description . . . . . . . . 5

1.1 Areas of application . . . . . . . . . 5

1.2 Measuring principle . . . . . . . . . 5

1.3 Measuring system design . . . . . . . 6

2. Mounting and Installation . . . . . 7

2.1 Protection type IP 66 (DIN 40050) . . . . 7

2.2 Temperature ranges . . . . . . . . . 7

2.3 Mounting instructions . . . . . . . . . 8

2.4 Mounting in steel piping . . . . . . . . 9

2.5 Mounting in plastic piping . . . . . . . 10

3. Electrical Connection . . . . . . 13

3.1 General information . . . . . . . . . 13

3.2 Connecting the Magphant . . . . . . . 13

3.3 Commissioning . . . . . . . . . . . 14

4. Operation . . . . . . . . . . . 15

4.1 Operating and display surfaces . . . . . 15

5. Troubleshooting and Remedies . 17

5.1 Response of the measuring system to faults 17

5.2 Checking the electronics . . . . . . . 17

5.3 Replacing the electronics module . . . . 18

6. Technical Data . . . . . . . . . 19

6.1 Dimensions and weight . . . . . . . . 19

6.2 Technical Data . . . . . . . . . . . 20

Index . . . . . . . . . . . . . . 22

X

Magphant Table of contents

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Magphant

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1. System description

1.1 Areas of application

The Magphant flow monitor provides the plant system with the information needed on
flowrate in the piping. The magnetic-inductive measuring principle determines the
flow velocity of the conductive liquid at the tip of the sensor. Exceeding the preset
switchpoint (limit value) is indicated by a relay contact. An analogue 4...20 mA signal
proportional to the flow is also available for monitoring the flowrate at the same time.
The Magphant is ideal for process protection and monitoring.

1.2 Measuring principle

In accordance with Faradays law of magnetic induction, a voltage is induced in a con­ductor that is moved through a magnetic field. In the electromagnetic principle of
measurement the flowing fluid represents the moving conductor. The induced voltage
is proportional to the flow velocity and is fed to the measuring amplifier by a pair of
electrodes.
Microprocessor-controlled electronics, with a stable zero-point, convert the voltage
into an analogue 4...20-mA output signal.

U

e

= B x L x v = induced voltage
B = magnetic induction (magnetic field)
L = distance between electrodes
v = flow velocity at the tip of the sensor

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Magnetic lines of force

B

Electrodes

Magnet ic co r e

Exciter coil

Sensor

L

U

e

v

Fig. 1:
Measuring principle of electro­magnetic flow measurement

Magphant 1. System description

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1.3 Measuring system design

A construction overview of the Magphant measuring system is shown in the diagram
below.

Operational safety

• Comprehensive self-monitoring of the measuring system assures high safety.

Any error messages that do occur (process errors, instrument system errors) are
immediately signalled via the current and relay outputs.

• The Magphant measuring unit fulfills the general safety requirements according to

EN 61010, as well as the general electromagnetic interference (EMI) immunity re­quirements EN 50081 Part 1 and 2 / EN 50082 Part 1 and 2.

• Protection type IP 66 is standard (DIN 40050).

Housing cover can be unscrewed.
After opening the cover, operating and dis­pla y elements as well as the terminal block
are easily accessible.

Electronic s ho us ing

Ground terminal

PVC cable gland
PG 16

Sensor sleeve

Union nut
M30x2
with clamp ring

Weld stub
DN 25

Weld stub
≥DN 40
(mounting length indicated)

PVC cable gland
PG 16

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Power supply 20...30 V DC

Signal cable

Electrodes

Union nut and
adapter for
Magphant
installation in
plast ic piping

Fig. 2:
Construction of the measuring
system

1. System description Magphant

6 Endress+Hauser

2. Mounting and Installation

2.1 Protection type IP 66 (DIN 40050)

The Magphant fulfils all the requirements for IP 66.

Caution!
After successful installation in the field or after replacing an instrument, the following
points must always be observed in order to ensure protection to IP 66:

• Housing gaskets must be clean and undamaged and lie at the end of the cover

threads. The gaskets may need to be dried, cleaned or replaced.

• The screw cover must be firmly tightened.

• The cables used for connecting must have an outer diameter of 7...12 mm.

• The cable glands must be firmly tightened.

• The cable must loop down before entering the cable gland to ensure that no mois-

ture can enter it.

• An unused cable gland is to be replaced with a blind plug.

• The protective bush should not be removed from the cable gland.

2.2 Temperature ranges

Caution!

• The maximum approved ambient and fluid temperatures must be observed

(see Page 20).

• For outside installation of the instrument, take care that it is protected from direct

sunlight. This applies especially in countries with high ambient temperatures.

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Fig. 3:
Mount ing re gu lat ion s for ca ble
glands

Magphant 2. Mounting and Installation

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2.3 Mounting instructions

Orientation in the piping

The Magphant is best mounted in vertical piping.
If the piping runs horizontally, then the Magphant is to be mounted to the side.
This mounting procedure ensures that the electrodes are always immersed in flowing
fluid.

Caution!
Never weld the weld stub to the pipe with the Magphant in place.

Position of the electrode axis

The sensor is to be mounted so that the electrode axis is always 90° to the direction of
flow. The two PG 16 cable glands can be used as a visual check as these also lie on
the same axis.

45°

Preferred mounting orientati on Non-recommended mounting

orientation

Possible
air bubbles

Possible
build-up
of solids

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Recommended inlet and outlet pipe sections: 5...10 x DN

Fig. 4:
Mounting orientation in horizon­tal piping

Required orientation

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Fig. 5:
Orientation of the electrode axis
and PG 16 cable glands

2. Mounting and Installation Magphant

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