McCrometer Dura Mag Instruction Manual

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DURA MAG
About This Quick Start Guide. . . . . . . . . . .1
General Installation Considerations . . . . . .2
Pipe Run Requirements . . . . . . . . . . . . . .2
Sensor Position and Location . . . . . . . . . .3
Grounding. . . . . . . . . . . . . . . . . . . . . . .4
Activating The Display . . . . . . . . . . . . . . . 5
Operation . . . . . . . . . . . . . . . . . . . . . . .6
Converter Boot. . . . . . . . . . . . . . . . . . . .6
Display Descriptions . . . . . . . . . . . . . . . .6
This Quick Start Guide is a supplement to the
Installation, Operation and Maintenance manual
supplied with this meter. It is intended to be
a quick reference for the basic installation and
reading of the Dura Mag. For more detailed
information concerning the external connections,
external power, pulse output, or data logger,
please refer to the meter manual (30122-53 Dura
Mag IOM manual) or the data logger manual
(30121-87 McLogger IOM) downloadable from
www.mccrometer.com).
WARNING!
Incorrect installation or removal of
meters can result in serious injury
or death. Read the instructions in
this guide on the proper procedures carefully.
• Any person installing, inspecting, or
maintaining a McCrometer owmeter
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.
About This Quick Start Guide
WARNING
!
Quick Start Installation Guide
30122-61, Rev. 1.3
May 11, 2020
Battery Powered
Electromagnetic Flow Meter
30122-61 Rev. 1.3 | 11MAY2020
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DURA MAG
Proper meter installation is the rst step to ensure
excellent meter performance. Follow these
instructions closely. Consult an authorized service
representativeortheFactoryforanycircumstances
encountered which are not covered in this guide.
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.
• All magnetic owmeters are calibrated for a
full pipeline only; if less, the owmeter will
over register the ow.
• 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.
General Installation Considerations
The meter needs to be located a minimum
distance before and after ow disturbances,
such as elbows, pumps, partially opened valves,
and changes in pipe diameter. The uneven ow
created by these obstructions can vary with each
system.
The minimum distance is measured in pipe
diameters(D).Toensureaccuracylocatethesensor
upstream and downstream of ow disturbances
as shown in the table below.
Pipe Run Requirements
Meter size Upstream Downstream
2” & 3” 3D 1D
4” and above 2D 1D
Upstream
distance
Downstream
distance
Measured from the end
of the ange
Flow direction
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DURA MAG
Flow direction
Flow direction
Vertical installation
Inverticalpiperuns,theowshould
be upward. In slurry application, a
vertical position ensures optimal
distribution of solids under all ow
conditions.
Horizontal installation
In horizontal pipe runs, the meter should be
installed so that the junction box is vertical
ensuring the electrodes are positioned to
prevent coating by sediments or loss of
electrode contact due to air bubbles.
Flow Direction
It is very important to install the ow meter relative
to the ow of the water. There is a sticker on the
Dura Mag that indicates the direction of ow.
Pipe Diameters
For proper accuracies any 90 or 45 degree elbows,
valves, partially opened valves etc. should be
placed not closer than two pipe diameters
upstream and one pipe diameter downstream.
Sensor Position and Location
Sensor Orientation
The following installation recommendations should be followed (see gures below):
Flow direction
Fluid level
Fluid level
Flow direction
Less than full pipes
In pipes which may encounter less than a full pipe of uid, the meter must be positioned in a trap to
ensure that the sensor is always completely lled with liquid.
30122-61 Rev. 1.3 | 11MAY2020
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DURA MAG
Grounding
12 gauge ground wire attached to
mating anges
12 gauge ground wire attached to
mating anges
Sensor ground lug Sensor ground lug
Sensor
ground lug
Sensor
ground lug
12 gauge
ground wire
12 gauge
ground wire
12 gauge
ground wire
12 gauge
ground wire
2. Sensor grounding for meters in an electrically noisy environment
If there is electrical noise in the uid column or electrical current in the pipe, it can be minimized or
eliminated using grounding rings or by grounding the pipeline.
a. Conductive uncoated pipe
Attach the provided 12 gauge wire, or equivalent, to the ground lug. Then connect the sensor ground
lug to an earth ground point. Next, connect the two mating pipe sections with a 12 gauge wire or
equivalent and connect them both to the earth ground. The Dura Mag should be electrically isolated
from the pipeline.
Information For Grounding Ring Installations
All Dura Mag ow meter installations require minimum grounding with a 12-gauge ground wire to
an earth ground. The preferred method of installation is connecting the Dura Mag to its own isolated
grounding rod. Installation must conform to NEC requirements. Flanges on the Dura Mag sensor have
a non-conductive coating and may not require grounding rings. When installing into a PVC or plastic
pipe system, grounding rings are recommended for all sizes.
See the Dura Mag IOM Manual, Lit. # 30122-53, for more information on grounding using grounding
rods and grounding rings.
1. Sensor grounding for meters with minimal ground noise
Attach the provided 12 gauge wire, or equivalent, to the sensor ground lug. Then connect this sensor
ground lug to an earth ground point.
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DURA MAG
Grounding ring lug and 12
gauge ground wire
Optional earth
ground for
installations with
building ground noise
Sensor
ground lug
Sensor
ground lug
12 gauge
ground wire
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.
CAUTION
If the lid is left up, propped up or
broken o, display could be damaged
by sun exposure. 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.
Activating The Display
IMPORTANT
i
b. Non-conductive or internally coated pipe
When pipes are non-conductive, such as PVC or internally coated pipe, you must substitute direct
grounding with grounding rings.
Attach the provided 12 gauge wire or equivalent to the sensor ground lug. Then connect this sensor
groundlugto anearth groundpoint;refertoNECorlocalgroundingregulationsforwiringrequirements
in making this connection.
Next, connect the two mating grounding rings with a 12 gauge wire or equivalent, attached to the
grounding ring lugs, and connect them both to the earth ground. The Dura Mag should be electrically
isolated from the pipeline.
Grounding ring lug and 12
gauge ground wire
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DURA MAG
Enclosure
lip
Press down Pull away and lift
from two corners to
remove.
Converter Boot
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 ensures
proper closure of the lid, ensuring the maximum
battery life.
IMPORTANT
i
The Dura Mag comes with a boot to help protect
the meter.
The boot simply slips over the electronics
enclosure. When installing the boot, ensure the
corners of the boot t snugly over the lip of the
enclosure.
To remove the boot, grip two corners and pull
them away from the lip of the enclosure and then
pull upwards.
Upon activating the display, the Dura Mag
automatically cycles through four display screens.
Alarm
Indicator
Alarm
Type
Battery life
remaining
Totalizer
Flow rate
Totalizer
Flow rate
Percent of
full scale
Display Descriptions
The Dura Mag 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.
Operation
b. Battery life
The second screen display shows the battery life
remaining for both battery packs and the ow
totalizer. In the sample below, both battery packs
are at 99% and total ow is 500 kilogallons.
a. Active alarms
The rst screen display shows any active alarms.
In the sample below, there is one alarm active for
an empty pipe.
c. Flow rate and totalizer
The third screen display shows the ow rate and
the ow totalizer. In the sample below, ow rate
is 15 gallons per minute and total ow is 500
kilogallons.
d. Flow rate and percent of full scale
The fourth screen display shows the ow rate and
percent of full scale. In the sample below, the
ow rate is 15 gallons per minute and the meter is
running at 80% of full scale.
30122-61 Rev. 1.3 | 11MAY2020
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TEL: [phone] • 800-220-2279 • FAX: [phone]
www.mccrometer.com
Copyright © 2020 McCrometer, Inc. All printed material should not be changed or altered without permission of McCrometer. Any published pricing, technical
data, and instructions are subject to change without notice. Contact your McCrometer representative for current pricing, technical data, and instructions.
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