McCrometer Mc Mag3000 Manuale utente

30120-85 Rev. 2.0

August 13, 2019

Mc Mag3000™

Battery Powered

Electromagnetic Flow Meter

Installation, Operation and

Maintenance Manual

30120-85 Rev. 2.0 | 13AUG2019

Page ii

Contents

SAFETY ....................................................................................1

Safety Symbols .......................................................................1

Safety Warnings ......................................................................1

1.0 INTRODUCTION ......................................................................2

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

3.0 INSTALLATION........................................................................3

3.1 Packaging Note ..................................................................3

3.2 General Installation Considerations ...............................................3

3.3 Flow Direction ...................................................................3

3.4 Straight Pipe Requirements .......................................................4

3.5 Flow Meter Installation ...........................................................5

3.6 Grounding.......................................................................6

3.7 Converter Boot...................................................................7

4.0 OPERATION ..........................................................................8

4.1 General..........................................................................8

4.2 Activating the Display ............................................................8

4.3 Display Descriptions..............................................................8

5.0 EXTERNAL CONNECTORS ............................................................10

6.0 DC POWER CABLE OPTIONAL .......................................................11

7.0 PULSE OUTPUT CABLE OPTIONAL...................................................12

8.0 MAINTENANCE ......................................................................12

8.1 Cleaning........................................................................12

8.2 Battery Removal and replacement................................................13

9.0 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

10.0 SPECIFICATIONS.....................................................................17

11.0 DIMENSIONS AND WEIGHTS .........................................................18

12.0 RETURNING A UNIT FOR REPAIR ......................................................20

WARRANTY STATEMENT ...................................................................21

30120-85 Rev. 2.0 | 13AUG2019

Page 1

Safety

Safety Warnings

When installing, operating, and maintaining McCrometer equipment where hazards may be present, you must protect

yourself by wearing Personal Protective Equipment (PPE) and be trained to enter conned spaces. Examples of conned

spaces are manholes, pumping stations, pipelines, pits, septic tanks, sewage digesters, vaults, degreasers, storage tanks,

boilers, and furnaces.

You must follow all state and local laws, as well as Occupational Safety and Health Administration (OSHA) regulations

concerning Personal Protective Equipment and conned-space entry. Specic requirements can be found in the OSHA

section of the Code of Federal Regulations: 29 CFR, 1910.132 - 1910.140, Personal Protective Equipment; and CFR Title 29,

Part 1910.146, Permit-Required Conned-Spaces.

WARNING!

Incorrect installation or removal of meters can result in serious injury or death. Read the instructions in

this manual on the proper procedures carefully.

WARNING!

Never enter a conned space without testing the air at the top, middle, and bottom of the space. The air

may be toxic, oxygen decient, or explosive. Do not trust your senses to determine if the air is safe. You cannot

see or smell many toxic gases.

WARNING!

Never enter a conned space without the proper safety equipment. You may need a respirator, gas detec-

tor, tripod, lifeline, and other safety equipment.

WARNING!

Never enter a conned space without standby/rescue personnel within earshot. Standby/rescue personnel

must know what action to take in case of an emergency.

WARNING!

Cutting into a pressurized pipe may cause injury or death. Always insure the pipe is empty BEFORE

cutting.

SAFETY

Safety Symbols

Throughout this manual are safety warning and caution information boxes. Each warning and caution box will be identied

by a large symbol indicating the type of information contained in the box. The symbols are explained below:

This symbol indicates important safety information. Failure to follow the instructions can result in serious

injury or death.

This symbol indicates important information. Failure to follow the instructions can result in permanent

damage to the meter or installation site.

30120-85 Rev. 2.0 | 13AUG2019

Page 2

Introduction

1.0 INTRODUCTION

Thank you for selecting the Mc Mag3000™ (Battery Powered Electromagnetic Flow Meter). This bolt-on saddle meter oers

the convenience of installation and operation of a propeller meter with the accuracy and ease of use of a mag meter.

The Mc Mag3000 ow meter combines an innovative multi-point sensor with a battery powered integrated electronic

converter package to provide accurate ow measurement for full-pipe ow monitoring applications.

The saddle mounted sensor (available for pipe sizes from 4 to 12 inches) uses electromagnetic technology to measure the

water ow and correct for shifting velocity in the pipe by constantly obtaining a mean velocity from its multiple sensors.

The integrated converter is powered by a replaceable three cell lithium-thionyl chloride (Li-SOCI2) battery that can provide

ow measurement for ve years (including a three-year battery warranty). Also available is the optional DC power supply

(required for 4-20mA output). The streamlined, debris-shedding sensor shape allows the Mc Mag3000 to be used under

many ow conditions, including surface water applications.

The Mc Mag3000 includes the McLogger data logger as standard with any order. Please see the McLogger manual for more

information (Literature number 30121-87).

2.0 PRINCIPLE OF OPERATION

The Mc Mag3000 uses Faraday's Law of Electromagnetic Induction to measure water velocity. Faraday's Law states that a

conductor, moving through a magnetic eld, produces a voltage.

Charge carriers in the uid produce a voltage when passing through a magnetic eld. The magnitude of the voltage is

directly proportional to the velocity at which the uid moves through the magnetic eld. Electromagnetic coils inside the

sensor produce magnetic elds, and electrodes on the sensor’s surface measure the voltage generated by the moving uid.

The electrode pairs are positioned in specic congurations along the axis of the sensor. The individual velocity

measurements are averaged together providing the average velocity across the pipe center line. Flow is calculated by

multiplying the average velocity by the cross-sectional area of the pipe.

30120-85 Rev. 2.0 | 13AUG2019

Page 3

Installation

3.0 INSTALLATION

3.1 Packaging Note

When you unpack the Mc Mag3000, you will nd a red plastic cap over the front push button. This can be discarded with

the rest of the packing materials.

3.2 General Installation Considerations

Proper meter installation is the rst step to ensure excellent meter performance. Follow these instructions closely. Consult

an authorized service representative or the Factory for any circumstances encountered which are not covered in this

manual.

All McCrometer products are tested and inspected during manufacture and prior to shipping. An inspection should be

performed at the time of unpacking to detect any damage that might have occurred during shipment.

Flow Direction

• Although a minimum line pressure is not necessary for an accurate measurement, a full pipe is necessary.

• With the meter installed, check the rate-of-ow indicator. It should be stable to the point that it can be easily read.

Some indicator movement is normal due to variations in ow. Erratic movement of the indicator is normally caused

by ow variations and the system should be checked. Drastic variations in ow can decrease meter accuracy. If you

suspect a problem with the meter, please contact your local McCrometer representative.

3.3 Flow Direction

It is very important to install the ow meter relative to the ow of the water. The sensor is designed at an angle to shed

debris in the ow and for other performance enhancements.

Figure 1. Proper Meter Installation For Flow Direction (6" To 12" Line Size Conguration Shown)

WARNING!

Incorrect installation or removal of meters can result in serious injury or death. Read the instructions in this

manual on the proper procedures carefully.

• Any person installing, inspecting, or maintaining a McCrometer ow meter should have a working understanding

of piping congurations and systems under pressure.

• Before adjusting or removing any meter, be certain the system has depressurized completely.

• Be careful when lifting meters. Meters can cause serious injury if lifted incorrectly or dropped.All magnetic ow

meters are calibrated for a full pipeline only; if less, the ow meter will over register the ow.

30120-85 Rev. 2.0 | 13AUG2019

Page 4

Installation

Figure 2. How To Measure Straight Pipe Requirements

3.4 Straight Pipe Requirements

Flow meters are velocity sensing devices and are vulnerable to certain upstream disturbances. Because of this, meters

need certain lengths of straight pipe before and after the meter. These distances relate to the diameter of the pipe

used. Obstructions can include elbows, valves, pumps, and changes in pipe diameter. The uneven ow created by these

obstructions can vary with each system.

Both upstream and downstream distances are measured from the center of the saddle as shown below. In a typical

installation to achieve ±2% accuracy the Mc Mag3000 ow meter should be installed a minimum of three diameters upstream

from most ow disturbers and one diameter downstream of the meter. Accuracy of ±1% is available in many applications

with a Factory consultation prior to ordering.

Required Upstream

Pipe Diameter

Distance

The Pipe Elbows

Represent A Flow

Disturber

Required

Downstream

Pipe Diameter

Distance

Measured From

The Center Of

The Saddle

The Pipe Elbows

Represent A Flow

Disturber

30120-85 Rev. 2.0 | 13AUG2019

Page 5

Installation

3.5.2 Installations Replacing Existing Saddle Meters

The Mc Mag3000 can be used to replace existing McCrometer saddle meters. The Mc Mag3000 can be installed with Water

Specialties bolt-on saddle meter cutout templates for 6” meters and 8”-20” meters, as well as with McPropeller bolt-on

saddle meter cutout templates for 12”-16”OD pipe.

NOTE:

The meter CANNOT be installed with Water Specialties bolt on saddle meter cutout templates for 4”meters.

WARNING!

Customers are warned that the U-Bolt nuts are to be tightened evenly to approximately 30 foot pounds torque.

This is sucient to seal the saddle to the pipeline. Additional tightening may be required to seal the saddle on

rough or irregular pipe (60 FOOT POUNDS MAXIMUM).

3.5.1 New Installations

Saddle type meters oer simplicity of installation. A minimum round hole size of three inches (3.0") should be cut into the

top center of the pipe. The saddle meter is then installed as follows:

1. Loosen and remove the nuts and washers from the straps. Remove the straps from the saddle.

2. Cut or hole-saw the pipe and remove all burrs, slag, and rough edges from the inside and outside of the cutout section.

3. Place the meter assembly on the pipe with the at gasket on the 4" models, and the “D” shaped ring gasket for larger

meters in position on the bottom of the saddle. The saddle must be positioned so that the at gasket or D-ring

maintains contact with the surface of the pipe completely around the cutout opening.

4. Insert the meter probe through the hole and slide the meter forward (downstream) until the probe contacts the front

edge of the pipe wall. Then slide the back away from the pipe wall 1/8" to 1/4" leaving the probe in a free state and not

in contact with the pipe wall.

WARNING!

Insure that the line is depressurized before beginning installation!

IMPORTANT!

Insure that the meter probe is not in contact with the pipe wall when installed!

3.5 Flow Meter Installation

The Mc Mag3000 is a saddle type meter. It may be installed directly onto an existing pipe, or may be installed into an

optional spool piece to be added to a system.

5. Install the straps from under the pipe and insert the threaded ends through the holes in the brackets on the side of

the saddle.

6. For each strap bolt, replace the washers and nuts.

7. Tighten each of the U-bolt nuts evenly.

30120-85 Rev. 2.0 | 13AUG2019

Page 6

Installation

3.6 Grounding

The Mc Mag3000 is tted with a grounding lug on the saddle for proper grounding. For typical installations the lug can be

connected to an earth ground and/or the metal pipe in which it is installed.

For electrically noisy installations connect the grounding lug to a dedicated, low impedance earth ground. Low impedance

is 10 Ohms or less.

The grounding lug

and hardware.

The ground wire is

to be attached to a

good earth ground.

Figure 3. Mc Mag3000 Grounding Lug

30120-85 Rev. 2.0 | 13AUG2019

Page 7

Installation

3.7 Converter Boot

The Mc Mag3000 comes with a boot to help protect the meter.

Enclosure Lip

Press Down

Pull away and lift

from two corners

to remove.

Figure 4. Boot Installation

Figure 5. Boot Removal

Figure 6. Proper Boot Installation

The boot simply slips over the electronics enclosure. When installing the boot, insure the corners of the boot t snugly over

the lip of the enclosure. See Figure 4.

To remove the boot, grip two corners and pull them away from the lip of the enclosure and then pull upwards. See Figure 5.

NOTE:

It is HIGHLY recommended that the boot be utilized at all times when the meter is not being read. The boot adds

protection to the meter and insures proper closure of the lid, insuring the maximum battery life.

30120-85 Rev. 2.0 | 13AUG2019

Page 8

Operation

4.0 OPERATION

4.1 General

The Mc Mag3000 comes pre-congured from the Factory based on the installation parameters provided to McCrometer at

the time of order. Other than activating the display, there is nothing required of the user for the basic operation of the

ow meter.

4.2 Activating the Display

For the purpose of conserving power the display remains blank until activated. To activate the screen, press and hold the

activation button for two seconds and then let it go. The screen will automatically deactivate after 60 seconds.

4.3 Display Descriptions

Upon activating the display, the Mc Mag3000 automatically cycles through four display screens.

4.3.1 First Display Screen

The rst screen display shows any active alarms. In the sample below, there is one alarm active for an empty pipe.

Figure 7. Lid Operation To Activate Display

Figure 8. Display Cycle One

CAUTION:

If the lid is broken o, contact the Factory for a lid replacement kit. In the meantime, set the lid on the meter in its

proper position and use the boot to hold it in place.

Alarm Indicator

Alarm Type

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