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Reference, Installation, and Operations Manual Section 4: Optional features
3-9000-743 Rev S June 2013
Overview 93
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Section 4: Optional features
4.1 Overview
The Mark III meter offers many industry-leading features including Ethernet access, Chapter 21-
compliant data log access, gas chromatograph (GC) interface, AGA10 sound velocity calculation
(with comparison to measured sound velocity) and Continuous Flow Analysis. Daniel recognizes
that these features are valuable to many, but not all customers. The optional Continuous Flow
Analysis key may be purchased with the meter or at a later time and this key enables all optional
features available.
The Continuous Flow Analysis optional feature is enabled via a software “key” value that is
specific to the meter’s CPU Board. This software feature key consists of 16 characters divided
into four hyphen-separated, 4-character groups (such as 1234-5678-90AB-CDEF). This dialog is
only available while connected to a meter with firmware that contains option keys to enable.
4.1.1 Managing optional feature keys
The Daniel MeterLink program Key Manager screen (accessed via Meter/Key Manager) is used to
view/change the key values and view the key statuses. For expiring keys (firmware v1.6X and
below), the expiration data is shown as part of the status.
If you currently have a valid key with an expiration date, the key shall be converted into a non-
expiring key upon firmware upgrade (v1.70).