Operating instructions

Introduction to Adjustments and Tests
4
1 Introduction to Adjustments and Tests
These Operating Instructions relate to configuring your XP Balance ready to perform adjustments and tests.
Warning: It is essential that you have read the Operating Instructions – Part 1 and Part 2 for the XP balances (separate
document). You must also have read the Safety Instructions in Part 1 and assembled and installed the balance according
to the operating instructions. The balance must be leveled.
1.1 Important to know
The default settings in these Operating Instructions are marked with the symbol
8
after the name of the setting.
Example: Standard
8
Where applicable, the Factory Setting has been specified. To print out the settings or the report a printer must be
connected and activated as the output device in the peripheral settings.
1.2 Basic principles for settings and tests
Balances play a very important role in research, development, quality assurance and production. Errors in weight measurements cost
time and money and violations to legal requirements may even cause damage to health. With the Good Weighing Practice™ from
METTLER TOLEDO, the routine testing of your balance is made efficient, accurate and secure. Our GWPBase™ service provides you
with a unique personalized document containing precise recommendations for the routine testing of your balances according to your
weighing risk with regards to:
• Howtotestyourbalanceandwhen(howoften)
• Whichweightsshouldbeused
• Whattolerancesareappropriate
You can find more information on our website: www.mt.com/GWPBase
GWPExcellence™ is the part of the balance firmware which has been specially developed to simplify routine testing procedures. In
combination with GWPBase™ you can ensure efficient balance testing to meet your audit requirements.
1.3 GWPExcellence™
GWPExcellence™ is a collection of embedded safety functions for XS/XP Balances. These individually programmable functions simplify
routine testing procedures and hence improve the measurement accuracy of your balance. Many of these functions relate to the routine
testing of your balance with external test weights and actively support you with requests for a test to be performed at a pre-defined time.
Step-by-step user guidance provided on the balance display allows complex procedures, such as a repeatability test, to be performed
without error by anyone in the laboratory.
In conjunction with internal sensors, further functions have been developed to avoid measurement error; e.g. temperature sensors can
trigger an internal adjustment when the temperature changes more than a pre-defined amount.
In order to ensure that tests are executed as desired and that reports are generated correctly, it is necessary for you to define and
maintain all relevant criteria for your tests. Making a record of your tests and adjustments to meet documentation requirements can be
easily done by connecting the balance to a printer or PC as desired.