Endress+Hauser Magphant Manuale utente

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

sales@InstrumentsAndControl.com

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

Magphant Table of contents

Endress+Hauser 3

Magphant

4 Endress+Hauser

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 con-

ductor 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.

Ue= 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

ba025y08

Magnetic lines of force

Electrodes

Magnetic core

Exciter coil

Sensor

LUe

Fig. 1:

Measuring principle of electro-

magnetic flow measurement

Magphant 1. System description

Endress+Hauser 5

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 re-

quirements 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 dis-

play elements as well as the terminal block

are easily accessible.

Electronics housing

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

ba025y04

Power supply 20...30 V DC

Signal cable

Electrodes

Union nut and

adapter for

Magphant

installation in

plastic 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.

ba025y10

Fig. 3:

Mounting regulations for cable

glands

Magphant 2. Mounting and Installation

Endress+Hauser 7

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 orientation Non-recommended mounting

orientation

Possible

air bubbles

Possible

build-up

of solids

ba025y05

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

Fig. 4:

Mounting orientation in horizon-

tal piping

Required orientation

ba025e18

Fig. 5:

Orientation of the electrode axis

and PG 16 cable glands

2. Mounting and Installation Magphant

8 Endress+Hauser

2.4 Mounting in steel piping

The Magphant is mounted in steel piping using the weld stub supplied.

Two different versions are available, depending on nominal diameter:

Weld stub for DN 25

For DN 25 piping, the weld stub has the appropriate radius to match the diameter.

•Opening in the piping: ∅= 23 mm.

•Place the weld stub on the opening and weld it at right angles to the axis of the

piping.

Weld stub for ≥DN 40

For ≥DN 40 piping, the weld stub has a graduated scale to ensure that the stub can

be correctly positioned for mounting.

•Opening in the piping: ∅= 30 mm.

•Insert the weld stub into the opening, with the marking (according to the nominal

diameter) flush against the outer wall of the piping and weld it at right angles to the

axis of the piping. For diameters >DN 300, the DN 300 marking is to be used.

ba025y07

Wrench size

27 mm

Welding seam

Fig. 6:

DN 25 weld stub

ba025y11

Welding seam

Wrench size

27 mm

Fig. 7:

≥

DN 40 weld stub

Magphant 2. Mounting and Installation

Endress+Hauser 9

Mounting of the adapter piece for steel piping

1. Insert the Magphant into the weld stub and tighten the union nut by hand.

2. Hold the weld stub with a open-ended wrench size 27 mm.

3. Tighten the union nut a further approx. 1⁄2turn with a open-ended wrench size

36 mm.

Caution!

When inserting the Magphant into a weld stub, care must be taken so that the sensor

tip is not damaged.

2.5 Mounting in plastic piping

The Magphant for mounting in plastic piping is delivered as part of a set, consisting

of the Magphant, an adapter piece made of 1.4435 (316L), and a plastic union nut.

Mounting of the adapter piece for plastic piping

1. Place the plastic union nut over the adapter piece.

2. Carefully insert the Magphant into the adapter piece and hand tighten the metal

union nut.

3. Hold the weld stub with a open-ended wrench size 25 mm.

Tighten the union nut a further approx. 1⁄2turn with a open-ended wrench size

36 mm.

Caution!

When inserting the Magphant into a adapter piece, care must be taken so that the

sensor tip is not damaged.

Wrench size 36 mm

Wrench size 27 mm Weld stub

Union nut

ba025y16

Fig. 8:

Mounting of the adapter piece for

steel piping

Wrench size 36 mm

Wrench size 25 mm Adapter piece

Union nut

ba025y20

Plastic union nut

Fig. 9:

Mounting of the adapter piece for

plastic piping

2. Mounting and Installation Magphant

10 Endress+Hauser

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