Emerson Series 3000 MVD User Manual

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This chapter explains how to use and manage the custody transfer application. The following topics 
are discussed:

•

Identifying a security breach – see Section 19.2

•

General differences between secured versus unsecured states – see Section 19.3

•

Using custody batch (NTEP) – see Section 19.4

•

Using custody transfer (OIML) and custody transfer (OIML/batch) – see Section 19.5

•

Clearing a security breach – see Section 19.6

•

Reconfiguring the Series 3000 device – see Section 19.7

•

Audit trail – see Section 19.8

The custody transfer application must be configured for the system that will be used. See Chapter 14 
for information on configuring the custody transfer application.

It is useful to distinguish between data security and legal security. Data security is present if the 
custody transfer switch is in the ON position and there is no “Security Breach” banner on the 
Series 3000 display. However, legal security requires data security plus an intact weights and 
measures seal. 

For custody transfer use, legal security is required. Therefore, a security breach is present if either of 
the following is true:

•

Visual inspection shows that the weights and measures seal is broken or missing.

•

The Series 3000 device has detected a security breach and posted the “Security Breach” 
banner on the display.

If a security breach is present, security cannot be guaranteed, and Series 3000 data cannot be used to 
meet weights and measures requirements. To clear a security breach, see Section 19.6.

In general, when the Series 3000 device is secured, the operator can run a batch and view process 
data, but cannot change device configuration. When the device is unsecured, configuration changes 
are permitted but other device behavior changes to indicate the unsecured status.

Table 19-1 provides a detailed list of changes to specific features or functions when the custody 
transfer application is installed and the Series 3000 device is either secured or unsecured.