Orion Atlas User Manual
Installation and Operating Manual
Magnetic Liquid
Level Indicators
Gauges
Switches
Transmitters
A Magnetrol Company
Read this Manual Before Installing
his manual provides information on Magnetic Liquid
T
Level Indicators. It is important that all instructions are
read carefully and followed in sequence.
Notice of Trademark, Copyright, and Limitations
agnetrol & Magnetrol logotype, Orion Instruments,
M
Aurora, Eclipse, and Jupiter are trademarks of Magnetrol
International.
Conventions Used in this Manual
Certain conventions are used in this manual to convey
specific types of information. General technical material,
support data, and safety information are presented in
narrative form. The following styles are used for notes,
cautions, and warnings.
Notes
Notes contain information that augments or clarifies
an operating step. Notes do not normally contain
actions. They follow the procedural steps to which
they refer.
Cautions
Cautions alert the technician to special conditions that
could injure personnel, damage equipment, or reduce
a component’s mechanical integrity. Cautions are also
used to alert the technician to unsafe practices or the
need for special protective equipment or specific
materials. In this manual, a caution box indicates a
potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
Warnings
Warnings identify potentially dangerous situations or
serious hazards. In this manual, a warning indicates an
imminently hazardous situation which, if not avoided,
could result in serious injury or death.
Safety Messages
Follow all standard industry procedures for servicing
electrical equipment when working with or around high
voltage. Always shut off the power supply before touching any components.
WARNING! Explosion hazard. Do not connect or
disconnect equipment unless power has been switched off
or the area is known to be non-hazardous.
Low Voltage Directive
For use in Installation Category II, Pollution Degree 2.
If equipment is used in a manner not specified by the
manufacturer, protection provided by the equipment
may be impaired.
Copyright © 2010 Magnetrol International.
All rights reserved.
Performance specifications are effective with date of issue
and are subject to change without notice. Magnetrol
reserves the right to make changes to the product
described in this manual at any time without notice.
Magnetrol makes no warranty with respect to the accuracy
of the information in this manual.
Warranty
All Magnetrol/Orion mechanical level controls are
warranted free of defects in materials or workmanship for
five full years from the date of original factory shipment.
All Magnetrol/Orion electronic level controls are
warranted free of defects in materials or workmanship for
one full year from the date of original factory shipment.
If returned within the warranty period; and, upon factory
inspection of the control, the cause of the claim is
determined to be covered under the warranty; then,
Magnetrol/Orion will repair or replace the control at no
cost to the purchaser (or owner) other than transportation.
Magnetrol/Orion shall not be liable for misapplication,
labor claims, direct or consequential damage or expense
arising from the installation or use of equipment. There
are no other warranties expressed or implied, except special
written warranties covering some Magnetrol products.
Quality Assurance
The quality assurance system in place at Magnetrol guarantees the highest level of quality throughout the company. Magnetrol is committed to providing full customer
satisfaction both in quality products and quality service.
Magnetrol’s Corporate quality assurance system is registered to ISO 9001
affirming its commitment to known
international quality standards providing the strongest assurance of
product/service quality available.
Table of Contents
Magnetic
Liquid Level Indicators
1.0 Installation
1.1 Unpacking.............................................................4
1.2 Pre-installation Checklist .......................................4
1.3 Equipment and Tools ............................................4
1.4 Side Mount Installation.........................................5
1.5 Top Mount Installation .........................................6
1.6 Top/Bottom Connection Installation.....................6
1.7 Start-up .................................................................6
1.8 Special Accessory Installation.................................7
1.8.1 Insulation or Blanket Installation................7
1.8.2 Steam Heat Tracing Installation..................8
1.8.3 Electric Heat Tracing Installation................8
1.8.3.1 Units with a fixed-point
thermostatic switch..............................8
1.8.3.2 Units with an adjustable “bulb-type”
thermostatic switch..............................9
1.9 Switch Installation ...............................................10
1.9.1 OES Cam Operated Switch......................10
1.9.1.1 Mounting to an
Atlas™or Gemini™MLI ....................10
1.9.1.2 Mounting to an Aurora®MLI ...........10
1.9.1.3 Wiring ...............................................11
1.9.2 ORS Electric Reed Switch ........................11
1.9.2.1 Mounting to an
Atlas or Gemini MLI.........................12
1.9.2.2 Mounting to an Aurora MLI .............12
1.9.2.3 Wiring ...............................................12
1.10 Analog Transmitter Installation............................13
1.10.1 OCT Reed Transmitter.............................13
1.11 Internal Electronic Transmitter Installation .........13
1.12 Internal Eclipse®Transmitter Installation.............14
2.0 Reference Information
2.1 Description..........................................................14
2.2 Theory of Operation ...........................................15
2.2.1 Side Mount...............................................15
2.2.2 Top Mount ...............................................15
2.3 Troubleshooting...................................................16
2.3.1 Side Mount...............................................16
2.3.2 Top Mount ...............................................17
2.4 Spare Parts...........................................................17
2.5 Maintenance........................................................17
2.6 Specifications.......................................................18
2.6.1 Magnetic Level Indicator ..........................18
2.6.2 Model OES Switch ...................................19
2.6.3 Model ORS Switch...................................19
2.6.4 Model OCT Analog Transmitter ..............19
2.6.5 Model 2XX Jupiter™ Magnetostrictive
Transmitter ...............................................19
2.6.6 Model 705 Eclipse Transmitter .................19
1.0 Installation
Caution: If equipment is used in a manner not specified by manu-
acturer, protection provided by equipment may be
f
impaired.
1.1 Unpacking
Unpack the instrument carefully. Inspect all units for
damage. Report any concealed damage to carrier within
24 hours. Check the contents of the packing slip and
purchase order. Check and record the serial number for
future reference when ordering parts.
Caution: Do not discard the shipping container until all parts are
checked.
1.2 Pre-installation Checklist
1. Manually move the float from 0% to 100% to 0% prior
to start up/check out in order to reinitialize accessory
products, if so equipped. Accessories may inadvertently
change state due to rough handling in shipment.
2. Remove float prior to pressure testing tank.
Caution: Float damage will occur if not removed from chamber prior
to pressure testing the tank.
3. Verify the MLI’s center to center distance equals the
vessel’s center to center.
1.3 Equipment and Tools
• Open-end wrenches or adjustable wrench to fit the process
studs and nuts. A torque wrench is highly desirable.
• Flat-blade screwdriver
• Digital multimeter or digital volt/ammeter if transmitters
or switches are attached
• Level
• Gasket for mating flanges
• Teflon tape & “never seize” for threaded units
• Pipe wrench for threaded units
4
46-638 Magnetic Liquid Level Indicators
1.4 Side Mount Installation
Caution: This instrument is intended for use in Installation
ategory II, Pollution Degree 2 locations.
C
NOTE: Top of gauge nameplates are available as an option.
The MLI nameplate can be used as bottom reference of
the external cage. Install the cage to the vessel with nameplate at bottom. Isolation valves are recommended for
installation between vessel and external cage. Check to
ensure the external cage is vertical. All piping should be
straight and free of “low spots” or “pockets” so that the
lower liquid connection will drain toward the external
cage. Adjust piping as required.
It is recommended a drain valve be installed in the bottom
flange to allow cleaning and checking level. Close the
isolation valves until start up.
Initial installation of the Magnetic Level Indicator is simple. Unless otherwise specified, MLIs will be shipped from
the factory fully assembled. All flanges will be torqued to
ANSI specifications. Make sure all process connections
attached to the vessel which the gauge will be mounted to
are vertically level, and flanges, if any are level.
Carefully unpack the MLI and stand it up vertically.
NOTE: Longer units require support of the entire length of the cham-
ber while being lifted in place vertically. This will prevent bowing of the chamber, that could result in glass breakage. Once
the gauge is mounted to the vessel and the liquid level rises
inside the vessel, the gauge will become operational
Isolation valves are recommended, but not required. If
isolation valves are used, care must be used when opening
the valves to prevent a surge of fluid or gases through the
chamber. A surge can cause the float to be propelled to the
far end of the chamber, and float damage could result.
Caution: If for any reason the MLI is pressurized higher than the
maximum pressure indicated on the name tag, the float
inside the chamber is subject to collapsing and causing
float failure.
NOTE: Float is shipped in chamber.
46-638 Magnetic Liquid Level Indicators
5
1.5 Top Mount Installation
Caution: This instrument is intended for use in Installation
Category II, Pollution Degree 2 locations.
The top mount gauge can be installed as one complete
unit or disassembled to allow access from inside the tank.
Correct vertical installation is required to assure proper
float movement.
To disassemble you need only to unscrew the threaded cap
at the bottom mounting flange or connection.
Caution: Proper precautions should be taken to prevent the
bending of the guide rod.
1.6 Top/Bottom Connection Installation
Caution: This instrument is intended for use in Installation
Category II, Pollution Degree 2 locations.
Carefully unpack the MLI and stand the unit up vertically.
Note the float stop disc at the bottom flange. Note the
float stop bar (welded in place) at the top of the gauge.
This always indicates the top of gauge.
The float is shipped in the chamber.
Caution: Overall length should be ±1⁄16". Smooth float travel must be
assured by no bending of the chamber pipe.
1.7 Start-up
Increase system pressure slowly while commissioning the
instrument. Thoroughly check for leaks, and verify that
the local indicator device accurately tracks the liquid level.
Verify external accessory devices (switches, transmitter, etc.)
are functional and properly calibrated.
Caution: Do not open the bottom isolation valve quickly. Allow the
level to rise until the MLI displays the correct level in the
vessel.
6
46-638 Magnetic Liquid Level Indicators
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