Emerson Penberthy Installation, Operation And Maintenance Manual

PENBERTHY FLAT GLASS GAGE SCALES

InstallatIon, operatIon and maIntenance InstructIons

Before installation these instructions must be read fully and understood

Product warranty

Emerson warrants its Penberthy products
as designed and manufactured to be free
of defects in the material and workmanship
for a period of one year after the date of
installation or eighteen months after the date
of manufacture, whichever is earliest. Emerson
will, at its option, replace or repair any products
which fail during the warranty period due to
defective material or workmanship.

Prior to submitting any claim for warranty
service, the owner must submit proof of
purchase to Emerson and obtain written
authorization to return the product. Thereafter,
the product shall be returned to Emerson, with
freight paid.

TABLE OF CONTENTS

Product warranty ................................................ 1

1. About the manual .......................................... 2

2. Introduction ................................................... 2

2.1 Standard scale description ..................... 2

2.2 Special scale description ........................ 2

3. Inspection ...................................................... 2

3.1 User inspection ........................................ 2

4. Installation ..................................................... 3

4.1 Preparation .............................................. 3

4.2 Mounting to un-mounted liquid

level gage ................................................. 3

4.3 Mounting to mounted liquid level gage .. 3

5. Operation ....................................................... 4

5.1 Pre-operational check............................. 4

5.2 Operating .................................................. 4

6. Maintenance .................................................. 4

6.1 Preventative maintenance ...................... 4

6.2 Maintenance procedures ........................ 4

7. Removal - disassembly - reassembly ......4-5

7.1 Disassembly ............................................. 4

7.2 Reassembly .............................................. 5

8. Disposal at end of useful life ........................ 5

9. Telephone assistance ................................... 5

10. Exploded parts diagram ................................ 6

Figures

Figure 1 Exploded parts diagram .................... 6

This warranty shall not apply if the product has
been disassembled, tampered with, repaired or
otherwise altered outside of Emerson's factory,
or if it has been subject to misuse, neglect or
accident.

The responsibility of Emerson hereunder is
limited to repairing or replacing the product
at its expense. Emerson shall not be liable
for loss, damage or expenses related directly
or indirectly to the installation or use of
its products, or from any other cause or
for consequential damages. It is expressly
understood that Emerson is not responsible
for damage or injury caused to other products,
buildings, personnel or property, by reason of
the installation or use of its products.

This is Emerson’s sole warranty and in lieu of
all other warranties, expressed or implied which
are hereby excluded, including in particular all
warranties of merchantability or fitness for a
particular purpose.

This document and the warranty contained
herein may not be modified and no other
warranty, expressed or implied, shall be made
by or on behalf of Emerson unless made in
writing and signed by the company's general
manager or director of engineering.

Emerson.com/FinalControl © 2017 Emerson. All rights reserved. VCIOM-04043-EN 18/02

PENBERTHY FLAT GLASS GAGE SCALES

InstallatIon, operatIon and maIntenance InstructIons

1 ABOUT THE MANUAL

This manual has been prepared as an aid and
guide for personnel involved in installation or
maintenance. All instructions must be read and
understood thoroughly before attempting any
installation, operation or maintenance.

SAFETY INSTRUCTIONS

Emerson does not have any control over the
manner in which its gage scales are handled,
installed or used and Emerson cannot and does
not warrant or guarantee that a gage scale is
suitable for or compatible with the user's specific
application.

WARNING

Vessel fluids may be pressurized and can
unexpectedly exit vessel connections due to
apparatus or material failure. Safety glasses
should be worn when installing a gage scale.
Failure to follow any instruction could possibly
result in an inability to measure the contained
fluid accurately or a malfunction of the liquid level
gage with resulting sudden release of pressure,
severe physical injury or property damage.

2 INTRODUCTION

Penberthy flat glass gage scales are used to
measure the level of the contained fluid in the
pressure vessel or holding tank. Penberthy
standard flat glass gage scales are made of
a strong weather resistant metal that has a
natural finish with black graduation marks that
contrast with the finish of the scale for ease of
reading. Penberthy standard flat glass gage
scales are furnished in customer specified
increments and lengths and are assembled
complete.

Mounting bracket: used to hold the gage scale
in position on the flat glass gage. The mounting
bracket is attached to the gage bolting by use of
the existing nut and bolt and the gage scale is
held in position in the bracket with a set screw
provided with the bracket.

2.2 Special scale description

Penberthy special flat glass gage scales are
provided completely assembled. All parts of
the gage scale are mounted onto the backing
plate during factory assembly. The mounting
brackets are the only components which are
not assembled to the gage scale.

3 INSPECTION

On receipt of a flat glass gage scale, check all
components carefully for damage incurred in
shipping. If damage is evident or suspected, do
not attempt any installation. Notify the carrier
immediately and request a damage inspection.
Refer to exploded view drawing in Section 10
toinventory parts.

3.1 User inspection

The user should confirm that:

1. The gage scale markings and length
conform to the description on the user's
purchase order.

2. The length described in the purchase order
agrees with the actual required length at the
installation site.

SAFETY INSTRUCTIONS

If the length or markings of the gage scale as
received do not conform with any of the criteria
above, do not proceed with installation. Contact an
authorized Penberthy distributor for assistance.

2.1 Standard scale description

Penberthy standard flat glass gage scales
comprise three basic components. Use the
exploded parts view in Section 10 as additional
reference material.
Scale: a metal strip with markings as customer
specified.
Backing plate: an aluminum strip onto which
the scale is attached to give the scale some
rigidity.

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PENBERTHY FLAT GLASS GAGE SCALES

InstallatIon, operatIon and maIntenance InstructIons

4 INSTALLATION

Installation should only be undertaken by
qualified personnel who are familiar with
this equipment. They should have read and
understood all of the instructions in this
manual. The user should refer to the product
proposal to obtain dimensional information.

WARNING

Use only qualified, experienced personnel who
are familiar with liquid level gage equipment. DO
NOT proceed with any installation of gage scales
to the liquid level gage unless the liquid level gage
has been relieved of all pressure or vacuum, has
been allowed to reach ambient temperature and
has been drained or purged of all fluids. Failure
to follow instructions can cause serious personal
injury and property damage.

4.1 Preparation

1. Secure a work bench with sufficient width
and length to accommodate the gage scale
mounting. The bench should be of sufficient
size to accommodate the liquid level gage
and gage scale.

4.2 Mounting to un-mounted liquid level gage

1. Loosen and remove the top and bottom nuts
from the bolts on one side of the liquid level
gage and any additional nuts depending on
the number of brackets being used.

Note: Penberthy standard gage scales are

provided with two mounting brackets. If
the installation is subject to vibration or
wind factors, it is recommended placing
mounting brackets at intervals of two feet
tofour feet.

2. Place brackets on bolts with the bracket
inset away from the liquid level gage, thread
nuts on finger tight.

3. Loosen the set screw in the mounting
brackets.

4. Place the gage scale into the insets of
the mounting brackets. The '0' reading of
the gage scale should be aligned with the
bottom of the vision slot in the liquid level
gage.

5. Hold the scale firmly in place in the bracket
insets; tighten the set screws of the
mounting brackets using a hex wrench.

6. Using a torque wrench, tighten all gage nuts
to the proper torque value as specified in the
liquid level gage Installation, Operation and
Maintenance Instructions provided.

WARNING

Failure to comply with the proper torquing
sequence or force value can lead to leakage,
gasket blow-out or glass breakage resulting in
gage failure, serious personal injury or property
damage.

4.3 Mounting to mounted liquid level gage

WARNING

Use only qualified, experienced personnel who are
familiar with liquid level gage equipment. DO NOT
proceed with gage scale installation unless the
liquid level gage has been relieved of all pressure
or vacuum, has been allowed to reach ambient
temperature and has been drained or purged of
all fluids. Failure to follow instructions can cause
serious personal injury and property damage.

1. Loosen and remove the top and bottom nuts
from the bolts on one side of the liquid level
gage and any additional nuts depending on
the number of brackets being used.

Note: Penberthy standard gage scales

are provided with two mounting brackets.
Ifthe installation is subject to vibration or
wind factors, it is recommended placing
mounting brackets at intervals of two feet
tofour feet.

2. Place brackets on bolts with the bracket
inset away from the liquid level gage,
threadnuts on finger tight.

3. Loosen the set screw in the mounting
brackets.

4. Place the gage scale into the insets of
the mounting brackets. The '0' reading of
the gage scale should be aligned with the
bottom of the vision slot in the liquid level
gage.

5. Hold the scale firmly in place in the bracket
insets; tighten the set screws of the
mounting brackets using a hex wrench.

6. Using a torque wrench, tighten all gage nuts
to the proper torque value as specified in the
liquid level gage Installation, Operation and
Maintenance Instructions provided.

WARNING

Failure to comply with the proper torquing
sequence or force value can lead to leakage,
gasket blow-out or glass breakage resulting in
gage failure, serious personal injury or property
damage.

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PENBERTHY FLAT GLASS GAGE SCALES

InstallatIon, operatIon and maIntenance InstructIons

5 OPERATION

5.1 Pre-operational check

1. Ensure that all installation procedures have
been completed.

2. Ensure that the gage scale is secure and
well supported.

3. Ensure that the gage scale is located
correctly.

5.2 Operating

Flat glass gages should be brought into service
slowly. The glass used in Penberthy flat glass
gages is tempered and can withstand minimal
thermal shock and mechanical stress.

WARNING

Gage and gagecock installations should be
brought into service slowly. The glass used in
flat glass gages is tempered and can withstand
minimal thermal shock and mechanical stress.
Gagecocks should be opened slightly, and the
gage and gagecock assembly temperature
and pressure allowed to equalize slowly. If the
gagecocks are equipped with ball checks, the
gagecocks must be opened all the way after
the pressure and temperature have equalized
to permit operation of the automatic ball check
in the event of gage glass failure. Failure to
follow the recommended operating procedures
can result in severe personal injury or property
damage.

6 MAINTENANCE

6.1 Preventative maintenance

On all installations the following items should
be evaluated regularly by the user for purposes
of maintenance:

1. Gage scales for cleanliness.

2. Gage scales to insure that scales are
secureand well supported.

3. Gage scales for corrosion.

The user must determine an appropriate
maintenance schedule necessary for his or
her own specific application, upon evaluation
of their own operating experience. Realistic
maintenance schedules can only be determined
with full knowledge of the services and
application situation involved.

6.2 Maintenance procedures

Clean gage scales with a non-abrasive soap or
detergent and a soft grit-free cloth or sponge.
After the surface has been cleaned and rinsed
of all foreign particles, it may be dried using a
clean, soft, grit-free cloth.

7 REMOVAL - DISASSEMBLY - REASSEMBLY

WARNING

DO NOT proceed with the removal of the gage
scale unless the gage and gagecock assembly has
been relieved of all pressure or vacuum, has been
allowed to reach ambient temperature and has
been drained or purged of all fluids. Failure to do
so can cause serious personal injury and property
damage.

Maintenance should only be undertaken by
qualified, experienced personnel who are
familiar with this equipment and have read and
understood all the instructions in this manual.

WARNING

DO NOT proceed with any maintenance unless the
gage and gagecock assembly has been relieved
of all pressure or vacuum, has been allowed to
reach ambient temperature and has been drained
or purged of all fluids. Failure to do so can cause
serious personal injury and property damage.

7.1 Disassembly

Refer to the exploded parts drawing in
Section10 for additional reference during
disassembly and reassembly of the gage scale.

1. While holding the gage scale firmly,
loosen the set screw (100) in the mounting
brackets(73) with a hex wrench.

2. Remove the gage scale from the brackets
(73) insets and place on work bench.

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PENBERTHY FLAT GLASS GAGE SCALES

InstallatIon, operatIon and maIntenance InstructIons

CAUTION

If gage scale mounting brackets (73) are to be
removed from the flat glass gage, the gage
must first be relieved of all pressure or vacuum,
been allowed to reach ambient temperature and
drained or purged of all fluids.

7.2 Reassembly

Refer to the exploded parts drawing in
Section10 for additional reference during
disassembly and reassembly of the gage scale.

1. If mounting brackets (73) were removed
during disassembly, place brackets on the
bolts with the bracket inset away from the
flat glass gage, thread nuts on finger tight.

2. Place the gage scale into the insets of the
mounting brackets (73). The '0' reading of
the gage scale should be aligned with the
bottom of the vision slot in the flat glass
gage.

3. Hold the scale firmly in place in the bracket
(73) insets, tighten the set screws (100)
using a hex wrench.

4. If mounting brackets (73) were removed
during disassembly, using a torque wrench,
tighten all gage nuts to the proper torque
value as specified in the flat glass gage
Installation, Operation and Maintenance
Instructions provided.

WARNING

Failure to comply with the proper torquing
sequence or force value can lead to leakage,
gasket blow-out or glass breakage resulting in
gage failure, serious personal injury or property
damage.

Note: refer to Section 5 Operation when
returning to service.

9 TELEPHONE ASSISTANCE

If you are having difficulty with your flat glass
gage scale, contact your local Penberthy
distributor. You may also contact the factory
direct at [phone] and ask for an
applications engineer. So that we may assist
you more effectively, please have as much of
the following information available as possible
when you call:
 Model #
 Name of the company from whom you

purchased the Penberthy flat glass gage

scale
 Invoice # and date
 Process conditions (pressure, flow rates,

tankshape, etc)
 A brief description of the problem
 Trouble shooting procedures that failed

If attempts to solve your problem fail, you may
request to return your gagecock to the factory
for intensive testing. You must obtain a Return
Authorization (R.A.) number from Emerson
before returning anything. Failure to do so will
result in the unit being returned to you without
being tested, freight collect. To obtain an R.A.
number, the following information (in addition
to that above) is needed:
 Reason for return
 Person to contact at your company
 'Ship-to' address

There is a minimum charge for evaluation
of non-warranty units. You will be contacted
before any repairs are initiated should the cost
exceed the minimum charge. If you return a
unit under warranty, but it is not defective, the
minimum charge will apply.

8 DISPOSAL AT END OF USEFUL LIFE

Penberthy flat glass gage scales are used in
a variety of fluid applications. By following the
appropriate federal and industry regulations,
the user must determine the extent of
preparation and treatment the gage scale must
incur before its disposal. A Material Safety Data
Sheet (MSDS) may be required before disposal
services accept certain components.
Metal, glass and polymers should be recycled
whenever possible. Refer to order and the
applicable technical data sheet for materials
ofconstruction.

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PENBERTHY FLAT GLASS GAGE SCALES

InstallatIon, operatIon and maIntenance InstructIons

10 EXPLODED PARTS DIAGRAM

FIGURE 1

PARTS LIST

Item Description

73 Bracket
164 Plate, backing
100 Screw, set
10 Scale

Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product.
Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.

Penberthy is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions,
Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by
our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without
notice.

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