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300 What’s new In Mark III
Upgrading a Mark II to a Mark III Reference, Installation, and Operations Manual
June 2013 3-9000-743 Rev S
• SENIORSONIC™ FLOW CHARACTERIZATION CALCULATIONS. The SeniorSonic™ Mark III meter
calculates/estimates flow-characterization information such as symmetry, cross-flow,
turbulence, profile factor and swirl angle.
• I
MPROVED VELOCITY ESTIMATION. The Mark III utilizes an improved algorithm for using chord
proportion history to estimate the flow velocity in the event of a chord failure. (Applicable
on SeniorSonic™ models 3400 and 3422 and JuniorSonic™
model 3420.)
• 12-P
OINT PIECEWISE-LINEARIZATION. The Mark III offers up to 12 points for piece-wise
linearization whereas the Mark II offers 10 points.
• T
WO INDEPENDENT FREQUENCY OUTPUT PAIRS. The Mark III offers two independent frequency
output pairs, a feature particularly useful in custody transfer applications. Each frequency
pair is individually configurable and utilizes a separate ground so that each pair can be
wired to a separate flow computer.
• N
EW FREQUENCY CONTENT OPTIONS. The Mark III meter adds four new frequency content
options (gas velocity, sound velocity, energy rate, and mass rate) to the standard options
(actual or standard flow rate).
• F
REQUENCY BI-DIRECTIONAL OPTION. This new option allows a frequency pair to be configured
so that the selected content is represented by the "A" channel when flowing in the forward
direction and by the "B" channel when flowing in the reverse direction.
• C
ONFIGURABLE "B" CHANNEL PHASE. Each frequency pair "B" channel phase is individually
configurable so that its phase (relative to the "A" channel) can be used to determine the
flow direction.
• B
ATCH DATA SMOOTHING. The Mark III meter offers a method for "smoothing" batch data that
is particularly useful for applications that rely on the frequency output signals.
• T
WO INDIVIDUALLY CONFIGURABLE DIGITAL OUTPUTS PER FREQUENCY PAIR. Each frequency output
pair has two associated, individually configurable digital outputs. Each digital output is
individually configurable for content and logic polarity. A test mode is available for testing
each digital output pair.
• E
THERNET CONNECTIVITY. The Mark III meter adds an optional Ethernet port in addition to
two RS-232/RS-485 serial ports. This allows for multi-user, network-based access over an
intranet.
• H
IGH-SPEED SERIAL COMMUNICATION PORTS. The Mark III supports independently selectable
baud rates on each of its serial communication ports up through 115200 bits/sec.
• F
ULL-DUPLEX SERIAL COMMUNICATION. The two standard RS-232/RS-485 serial ports can be
configured for either half-duplex or full-duplex operation. Full-duplex communication
allows a highly reliable TCP/IP protocol to be used by Daniel MeterLink which provides full
functionality as is available via the optional Ethernet connection, including log access and
waveform viewing.
• A
UTOMATIC COMMUNICATION-PROTOCOL DETECTION. The Mark III meter automatically detects
all supported communication protocols which simplifies communication set-up.
• O
PERATING SYSTEM. The Mark III utilizes an enterprise-class, protected-mode Linux
operating system for enhanced reliability and future upgradability.