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Australian Government: National Measurement InstituteAustralian Government: National Measurement Institute
National Measurement Institute
      

Point of sale

Verification of Point of Sale Systems

Verification and marking of Point of Sale (POS) systems and simple printers and indicators can be performed according to the ‘Decision chart for the approval and verification of auxiliary indicating systems’.

Definitions

S1/0/A is the General Supplementary Certificate of Approval for electronic indicating and printing devices for measuring instruments.

S1/0B is the General Supplementary Certificate of Approval for electronic indicating, summing or printing devices interfaced and auxiliary to an approved measuring instrument. S1/0B contains requirements, samples of printing and test procedures to ensure compliance.

A POS system is a component of a measuring instrument that is:

  1. approved for use for trade; and
  2. used for creating labels, receipts or documents; and
  3. able to convert the result of a measurement made by the measuring instrument; and
  4. not able to control the measuring instrument or to affect its metrological performance.

There are two types of POS systems:

  1. Historical POS systems, which are compliant with the requirements of S1/0/A.
  2. Newly installed POS systems, which have been assessed by NMI against NMI M 7 and have been issued an approval number.

Please note: POS systems that control self-service/authorisation of a fuel dispenser are not covered here. Such systems are covered within supplementary Certificates of Approval for liquid fuel dispensers and are verified under licence class 18.1.

A POS system controller is a data processing device, usually a PC with programmable/loadable software.

Requirements for POS Systems installed before 1 August 2012

Data Plate Markings

POS systems, which are compliant with S1/0/A and installed prior to 1 August 2012 are required to be marked with the descriptive markings specified in S1/0/A; including the NMI approval number S1/0/A.

If the POS system has been installed before 1 August 2012 and is compliant with S1/0/A, a verifier may apply a missing data plate. If necessary, the serial number can be replaced with another unique identifier.

These markings are required to be located on the controller only.

Other auxiliary devices, which form part of the POS and are attached to the controller (displays, printers and scanners etc), do not need to be separately marked.

Sealing and Verification Marking 

POS systems complying with S1/0/A are not required to be sealed.

These systems are normally verified in conjunction with the measuring instrument to which they are attached. The licensee carrying out such verifications will require a licence class for the measuring instrument to which the POS is attached. Verification forms will require the details of the measuring instrument only.

No verification mark is required on the POS, only on the measuring instrument.

Requirements for POS Systems installed after 1 August 2012

From 1 August 2012, all new POS systems require a supplementary pattern approval certificate and number, as S1/0/A has been cancelled. POS systems will be examined for compliance by NMI and issued a supplementary approval certificate.

Data Plate Markings

POS systems are required to be marked with the descriptive markings detailed in the supplementary Certificate of Approval, including the approval number. The Certificate will detail where the markings are to be made.

Sealing and Verification Marking

The Certificate of Approval will detail any sealing requirements.

Licensees carrying out the verification will require a licence class 18.2. Verification forms will require the serial number (or other unique identifier) of the POS system.

The label bearing a verifier’s mark should be applied to the POS controller in a position that is easily found by a Trade Measurement Inspector.

Note: It is a condition with this class of licence that licensees ensure they (or their employees) are competent to undertake such verifications. Competencies under licence class 18.2 can be recognised within the NMI recognition kit for Simple Measuring Instruments.

Changes made to POS Systems

POS systems need to be verified before use for trade and re-verified under certain conditions.

Some examples where re-verification of the POS system would be required are:

  • Metrological change of POS software.
  • Replacement of a POS hardware component (e.g. display or printer) with a different type or model.
  • Addition of new hardware e.g. adding a printer to a system which did not have one before.

Verification forms will require the use of instrument performance code ‘G’ (modified/upgraded).

Some examples where re-verification of the POS would not be required are:

  • Movement of measuring instrument or POS hardware component within a verified system. Note - the measuring instrument may need to be re-verified.
  • Addition of approved POS hardware e.g. adding an identical printer to a system, which already has one.
  • Replacement of measuring instrument. Note – the measuring instrument may need to be re-verified.

Requirements for simple printers and indicators

Simple printers and indicators that do not form part of a POS system must be tested in accordance with the test procedure outlined in S1/0B. These devices should only be verified in conjunction with the verification of the measuring instrument to which they are attached.

A verification mark is required to be placed on the measuring instrument. No additional verification mark is to be placed on the simple printer or indicator. Verification reports require the details of the measuring instrument only.

These devices must be identified with a data plate containing information specified in S1/0B. There is no requirement for these devices to be sealed.

A simple printer or indicator can be connected by anyone to a verified measuring instrument without the need for the measuring instrument to be re-verified. It is the responsibility of the user of the device to ensure it is compliant with S1/0B.

Frequently Asked Questions

Collapsed - Q1. How should verifiers handle the situation where they find themselves with a new POS system that has not been approved?

A. (1) Inform the store owner of the requirements, (2) verify the scale only and (3) include details on the verification forms.

Collapsed - Q2. For simple auxiliary device labels, there are some differences between the requirements of S1/0/A and S1/0B. If a label is compliant with S1/0B but fitted to an older installation, would it still be considered compliant?

A. Yes — as long as all auxiliary devices installed after 1 August 2012 are compliant with S1/0B. Older devices can conform to the requirements of either S1/0/A or S1/0B. S1/0B can be used in the instance that S1/0/A is unclear.

Collapsed - Q3. Why are simple printing and indicating devices required to be marked with a manufacturer’s name/logo/serial number if this information is not present on the verification form?

A. These marking requirements are not new, so S1/0/A and S1/0B are aligned in this respect. We have decided not to include this information on the verification form because auxiliary devices can be added at any time. Having a data plate on the device indicates that S1/0B has been considered.

Collapsed - Q4. Since there appears to be no requirement in the S1/0B approval for the visibility of data plates and markings, should there be a requirement to prevent multiple markings and show compliance?

A. Simple printers and indicators are fairly small devices, thus it was decided to allow some flexibility for the location of the data plate as per other instruments.

Marking

Collapsed - Q1. Can a verifier put an S1/0/A data plate on a POS system?

A. Yes — if the system was installed before 1 August 2012 and is compliant with S1/0/A, a verifier can replace a missing data plate.

Collapsed - Q2. Can a verifier put a missing data plate on a POS system if it’s not covered by S1/0/A?

A. The certificate details who is able to mark instruments with the approval number — usually it is the submitter of the POS system. The verifier can replace the data plate with the permission of the original submitter.

Collapsed - Q3. In the future, how will verifiers be able to identify whether an unmarked POS system has an approval certificate or whether it is a system installed before 1 August 2012 (as per S1/0/A requirements)?

A. Certificates for POS systems may be dowloaded from our website. The approval number will be on the data plate for new systems.

POS Verification

Collapsed - Q1. Has consideration been given to the wording of POS system approvals to ensure that only certain changes to a POS system are allowed before it no longer conforms to the approval?

A. The certificates will be clear as to what is required in the POS system, including hardware and software and what is interchangeable.

Collapsed - Q2. Why are so many supplementary POS system approvals provisional?

A. Provisional approvals have been issued in order to allow enough time for companies to make software changes and for assessments to take place.

Enforcement

Collapsed - Q1. In SL 12/01 Verification of POS Systems (PDF 94KB) only the measuring instrument details are required on the verification form for POS systems installed before 1 August 2012. So, how would NMI know a POS system is attached to a certain instrument at a specific location?

A. Older POS systems are treated as auxiliary devices, so S1/0/A and S1/0B are consistent with each other. It is important to be forward looking, and with new systems we will know which POS systems are installed. Older systems will be phased out naturally over time.

For more information

Please refer to the following information:

 

For more information contact 1300 686 664, infotm@measurement.gov.au or use our on-line form