As you Asking for the Information About the NITP 6.7National Instrument Test Procedures for Automatic Packaging Conveyor Weighers the information is given below


NITP 6.7 describes the test procedure for the verification of automatic packaging conveyor weighers (hereafter referred to as package weigher), class Y(a) and Y(b), to ensure that they measure within the maximum permissible errors (


Required Data
Test report reference number.
Date of test.
Name of owner/user.
Address of owner/user.
Name of contact on premises.
Address where package weigher is located, if applicable.
Description of package weigher.
Manufacturer/s.
Model.
Package weigher serial number.
Certificate/s of approval number.
Maximum capacity (Max).
Minimum capacity (Min).
Verification scale interval (e).
Accuracy class.

Characteristics of the Package Weigher

Does the package weigher comply with its certificate/s of approval?
Is the package weigher being used in an appropriate manner?
Are all mandatory descriptive markings clearly and permanently marked on a data plate?
Is the data plate fixed on the package weigher?
Is the package weigher complete?
Is the package weigher broken?
Is the package weigher clean?
Is the package weigher operational?
Is the level-indicating device (if fitted) secured and functional?
Is the package weigher level?


Criteria for selecting the test objects:
At least 5 different test objects.
The test objects must span from Min to Max for the package weigher in approximately equal steps.
Include a test object of 1/3 Max for the eccentricity (clause 5.4.1) and weighing performance testing (clause 5.4.2).
Do not select Max if over-range blanking occurs at that point. If this occurs then it is recommended that the test object be 5e less than Max;

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NITP 6.7 National Instrument Test Procedures for Automatic Packaging Conveyor Weighers.pdf (447.8 KB, 75 views)