Emerson Process Management 3400, 3410, 3420, 3422 Eth1Key, AGA10Key, is clicked, LogAccessKey, IsAnyKeyExpired, IsAnyKeyExpired, IsAnyKeyAboutToExpire, IsAnyKey- AboutToExpire, will disable the feature once

	Reference, Installation, and Operations Manual	Section 4: Optional features
3-9000-743 Rev S		June 2013

4.1.6Optional Aga10 key (sound velocity calculation)

The optional AGA10 sound velocity calculation feature allows the meter to calculate the predicted sound velocity based upon the gas composition and compare this value to the measured average sound velocity. The gas composition can be either specified via data points or optionally read live from a GC (see above). This feature is enabled/disabled via the AGA10Key data point.

4.1.7Key status

The Status column will indicate if the key entered is a Valid key or if the key is disabled.

Leaving the Key field empty or entering 0000-0000-0000-0000 will disable the feature once Write to Meter is clicked.

4.2Key expiration warnings (firmware v1.6X and below)

Daniel MeterLink (firmware version 1.6X and below) provides two key-expiration-related warnings: one when any optional feature key is within 30 days of expiring (via the IsAnyKey- AboutToExpire data point) and another when any optional feature key has expired (via the IsAnyKeyExpired data point).

Each warning data point is individually acknowledgeable from within the Daniel MeterLink Meter/Monitor page via the ‘Check Status’ button. Once a warning is acknowledged, it will not become active again until a different key is within 30 days of expiring or has expired.

The IsAnyKeyAboutToExpire and IsAnyKeyExpired data points are both audit-logged and alarm-logged.

4.3Grandfathered features (firmware v1.6X and below)

Prior to firmware version 1.30, the Ethernet access and data log access features were included at no extra charge. For customers with firmware v1.30 and below wishing to upgrade to newer (1.30 or later) firmware, the newer firmware automatically “grandfathers” these optional features by assigning non-expiring key values to the Eth1Key and LogAccessKey data points based upon the CPU Board serial number. GC interface and AGA10 sound velocity calculation features are not “grandfathered.”

4.4Trial period (firmware v1.6X and below)

All optional features with disabled keys are automatically enabled via expiring keys for a trial period that ends 90 days after continuous flow is established (firmware v1.6X and below). Continuous flow is established when the meter average flow velocity is continuously above the low-flow limit for eight hours.

Optional Aga10 key (sound velocity calculation)