Welcome to the Caterpillar Gas Engine

1
Welcome to the Caterpillar Gas Engine Rating Pro
(GERP) Tutorial. This powerful tool provides
the ability to create performance data for
Caterpillar Natural Gas engines designed for the
gas compression industry.
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• Additional GERP Training
• Caterpillar Customers.
• Please request additional training from your
  local dealer. You can use the CAT Dealer Locator
  on the Cat Oil Gas website to find the dealer
  nearest you.
• Caterpillar Dealers.
• Please take online training classes using the
  following codes
• Gas Engine Rating Pro (20287 AICC)
• Caterpillar Employees.
• Please use the following CLMS classes to learn
  more about GERP
• Gas Compression Fundamentals GERP (08E8628)
• Gas Engine Rating Pro (33637)

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After launching GERP, you will be asked to check
for web updates. Select Yes to run this check.
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If there are no Web Updates, you will see this
screen appear.
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The 3 files are selectable.
If a Web Update is available, select Start
Download and the update will begin.
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When the update is complete, select Close.
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After checking for updates, the Login window will
launch automatically. You can also access the
Login window from the File menu. The user
Login and Password must be entered to open the
application. Press the Add New button to add a
new user to the list of users, the User Master.
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When you first login, you will be asked to change
your password. Select Yes to define a user
password.
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Selecting Yes will prompt the Change Password box
to appear. Choose a user password and select OK.
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After logging in for the first time, you will
have the option for automatic login, which
eliminates the need for a user name and password.
To change users, simply logoff and then login.
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After logging in for the first time, you will be
prompted to enter default information. Fill out
the fields in both the Settings and the Company
Info tabs. Enter a Company Name (which will be
used for all users on this PC) and Dealer
information. If you dont know your dealer,
choose Find A Dealer to locate a dealer.
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Selecting Find A Dealer will allow the user to
locate a dealer by address, dealer name, or
latitude/longitude. Fill in the fields and select
Find.
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A list of dealers will appear. Click on the
dealer for more information and fill in the
Dealer Name, Dealer Contact, and Dealer Email.
Then select Close.
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Select the Settings tab to input setting
information. After choosing desired defaults,
select Save, then Close. This screen can be
accessed at any time from the Edit menu.
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The Register Software option will also be
displayed automatically with each new version
install. This will ensure you are notified of all
future updates and upgrades. It is also available
from the Help menu and is used to register your
current version of Gas Engine Rating Pro. Fill in
the fields and click Submit.
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To add a new user to the program, go to the
Masters option, available from the Utilities
Menu, and select Users. You can also do this at
the Login screen. The User Master section will
appear.
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In the Login section, enter the Login name for
the new user. This can be their personal name,
or any other code that will easily be remembered.
Fill in the rest of the information and click
Save.
To search for an existing user, use the dropdown
arrow on the right of the Search box.
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To add a new customer to the program, go to the
Masters option, available from the Utilities
Menu, and select Customer.
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The Customer Master allows you to add and remove
customers from the customer list that appears in
the Project Information screen.
To search for an existing customer, use the
dropdown arrow on the right of the Search box.
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To Add a new company click the Add button to the
right of the field. Specify a company name, its
status, then select Save and Close.
To search for an existing company, use the
dropdown arrow on the right of the Search box.
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You can then access the company name through the
dropdown menu.
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The Customer Master window is also where the
customer contact information is entered. After
filling in the fields, select Save then Close.
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To import Microsoft Outlook or Lotus Notes
contacts to the program, go to the Import option,
available from the File menu, and select
Contacts.
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Select either Import Outlook Contacts or Import
Lotus Contacts to populate the list of Contacts
you wish to import.
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After selecting to Import contacts, you will be
prompted to enter a password. This password is
the same as your Lotus or Outlook password. Enter
the password and select OK.
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Select all contacts you wish to import. A red
highlighted contact means more information is
needed about that contact to be imported. White
means all necessary information is provided for
that contact from the address book.
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Click the left hand box to select a contact to be
edited. Then select Edit and modify the data in
the boxes below.
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The first step when starting a new project is to
make the engine selection. Older engines are
catalogued in Gas Engine Rating Pro as
Non-current. This should help you manage your
fleet.
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For non-current ratings, you can narrow the
selection by utilizing the serial number prefix.
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For current selections, begin by choosing the
engine using either the Performance Rating Number
from a Technical Performance Data Sheet or by
inputting individual parameters.
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If the feature code for a rating or the rating
number on a Caterpillar Technical Performance
Data Sheet is not known, select the engine using
a series of dropdown menus. You can find a
model by selecting options from any of the
dropdowns. When a selection is made, the other
drop down choices are limited to only those that
match your selections.
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The Engine Model field is filtered based on the
Engine Family that was selected. Select an
Engine Model from the dropdown list.
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A Warning screen will appear if you press Next
and the value column is not completely filled in.
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Select the Emission Setting from the dropdown
list. Once enough information has been
determined to fully identify a model/rating, the
engine information table is populated. Select
Next.
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The Rating Information screen (main screen)
displays full load engine performance at the
standard rated conditions. Enter the project
site conditions in the Site Rating column.
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The Altitude can be changed by typing in the
correct altitude of the site where the engine
will be operating.
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The Air Temperature can be changed to match the
maximum site temperature where the engine will be
operating.
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The SCAC temperature (aftercooler) can be changed
from the standard setting using a dropdown box of
SCAC temperatures.
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The site fuel can be selected from a predefined
list of fuels. If the fuel gas analysis is
known, select the Gas Analysis option from the
list and the program will display another input
screen.
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The Fuel Analysis screen is used to enter the
composition of the fuel gas that will be supplied
to the engine and its properties are calculated.
When the necessary fields are filled in, select
Calculate, then Next.
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After selecting Next, notice that the Calculate
button on the main screen is lit. Select
Calculate to have program calculate engine
performance at specified site conditions.
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The Rating Information screen will now display
complete site full load engine performance at the
site conditions as well as standard rated
conditions.
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The Gas Engine Rating Pro allows users to
override default settings to select other units
of measure and other units for calculating
exhaust emissions as well as reduced speeds and
loads.
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Use the dropdown menus to change default output
parameters.
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At any time during your engine selection, you may
select the Notes button to enter miscellaneous
notes about your project.
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The calculate button will be lit whenever new
input information is specified. If any input has
changed, always remember to calculate again,
using the Calculate button.
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Click on Project Information to enter
information pertinent to your project.
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The Project Information section contains project
descriptive data related to the current project,
customers, and who prepared the project. This
will be displayed on site data outputs.
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Select Add/Edit Customer to input a customer
name. Notice that this window can also be
accessed through the Utilities Menu as previously
mentioned.
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When you are finished with your engine
calculations and have inputted the Project
Information, make sure you save your work by
selecting File, Save.
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Selecting Close when you have not previously
saved your work will prompt this warning box.
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You can open previously saved projects using the
File menu and selecting Open.
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When changes are made to previously released
ratings, you will get one of two messages when
you open a saved project that used a changed
(non- current) rating. If the change is due to
an error in the data, you will receive this
message. You can review the old data or update
to the new data.
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If the change is because an engine is no longer
available (for example the EIS ignition on the
G3500s), you will receive this message.
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Multiple runs allows users to save multiple
models or selections under a single project name.
To select a new run, save your work and click
Runs then Create New.
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Specify New run name and what information is to
be copied to the new run, then click Ok.
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After clicking Ok, notice that the Runs field
changes. You can use the Runs dropdown menu to
specify which Run you wish to view.
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You can edit the name of a Run by clicking Runs
then Edit Description.
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Specify a new name for the Run and select OK.
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Click the Tech Data Output option on the left
navigation bar to view all available technical
data.
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The Site Tech Data Sheet displays engine
performance data, which represents the highest
possible continuous operating power at the user
specified site conditions. The data may also
represent the user specified site speed and power
level when a reduced power or speed value is
entered. You can print, export to .CSV file, or
close the tech data pages.
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Press the Save button to save technical data into
a folder. The default setting will save the
document as a .PDF file.
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Press the Print button to print technical data.
You must complete Project Information in order to
print the Site Tech Data Sheet.
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The Standard Tech Data Sheet displays calculated
engine performance data for the standard rated
conditions. This represents published
performance data at 100, 75, and 50 load
points.
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Jacket water pump curves and auxiliary water pump
curves plot pump flow rates vs. external
resistance for several engine speeds in the
engine operating range.
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If both Sound Pressure and Sound Power are
available, select the Sound Type from the
dropdown and specify distances to regenerate the
report. If only Sound Pressure is available,
the report is available based on the defaults
shown.
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The Optional Graphs plot Engine Power vs.
selected Parameters such as Fuel Consumption,
Inlet Manifold Pressure, Ignition Timing, etc. in
the engine operating range. These curves are
based on the Site Rating at Maximum Air to Turbo
Temperature. Move your cursor to any point on
the line to get an exact reading.
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Click a different row to view other graphs.
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Select Report boxes to designate graphs you want
to include in the printed report. When printed,
the report will print all checked boxes.
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Select the What If tab if you need to calculate
engine performance at speeds or loads at varying
increments. After calculating, you may export the
data to .CSV File.
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You can open the .CSV file in Excel by opening
the document in the Reports section of the My
Documents/My Gas Engine Rating Pro folder.
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Select the Drawings tab to view a 2D drawing or
3D model of the engine model you are working
with. Utilize the toolbar to perform different
functions with the model. This window also
contains a Downloads button. If you click this
button you will be able to Download all the
related file formats for the selected Performance
Number drawing.
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The Downloads window contains options to select
certain sheets and file formats. The files are
downloaded to the default directory located in My
Documents.
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Select 3D Model to view the engine. (NOTE 3D
models are only available for 3500 and 3600
engine models). This window also contains a
Downloads button. If you click this button you
will be able to Download all the related file
formats for the selected Performance Number
drawing.
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The Downloads window contains options to select
certain file formats. The files are downloaded to
the default directory located in My Documents.
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The reports tab organizes and consolidates all of
your output data into one report.
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Select and deselect checkboxes to specify what
output data needs to be included in the report.
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You can save any of your Site Tech Data
information to a .CSV file by clicking on the
Export to .CSV File at any time.
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Use the Reference Material screen to view
Performance Data, Spec Sheets, Reference Guides,
or Product Information. Click on the plus sign
adjacent to the Reference Material selection to
view the available documents. Then click on the
title to open the document.
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The Special Rating Request (SRR) screen is used
to document any special conditions or
requirements that prevent a rating from being
analyzed by the Gas Engine Rating Pro. This
information can then be e-mailed to Caterpillar
for processing. Be sure to be very specific and
detailed when filling in the Request box.
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The Check for GERP Updates option is available
from the Utilities menu and can be utilized to
update the Gas Engine Rating Pro application.
Check for GERP Updates will download the latest
enhancements or changes and will guide you
through the setup process.
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This concludes the overview of the main features
(new old) within the Gas Engine Rating Pro
application. If more assistance is required
please refer to the Help menu for additional
information on features in the Help file, how to
obtain technical help and a frequently asked
questions document. Product Support
Services Free Help Desk support is provided for
the Gas Engine Rating Pro (GERP) software program
during the hours below Help Desk Hours Monday
through Friday 600 AM to 700 PM United States
Central Standard Time Telephone
Numbers 800-901-8777 (United States
only) 309-266-9749 (From all other
locations) 309-263-0127 (FAX) Email enginesoftwa
re_at_catsupport.com