Reference, Installation, and Operations Manual

Upgrading a Mark II to a Mark III

3-9000-743 Rev S

June 2013

 

 

 

Appendix C Upgrading a Mark II to a Mark III

C.1

Meter electronics upgrade

 

This section describes the important differences between the Daniel Mark II and Mark III meters.

 

This section also includes instructions on how to upgrade a Mark II meter to use the Mark III

 

electronics using the Daniel MeterLink configuration conversion feature.

 

 

Daniel CUI version 4.21 is the final version that supports Daniel Mark II Gas Ultrasonic

 

 

meters. If you are communicating with a Daniel Ultrasonic Mark II Gas Flow Meter, you do

 

 

not need to uninstall version 4.21 or earlier versions of Daniel CUI before installing

 

 

MeterLink. Version 4.21 and earlier versions of Daniel CUI should not be run simultaneously

 

 

with MeterLink.

 

 

C.2

What’s new In Mark III

 

The Mark III meter electronics offers many new and improved features over the previous Mark II

 

design as discussed below:

 

•

FASTER UPDATE RATES. The Mark III uses a newer, faster processor with a double-precision

 

 

hardware floating-point unit. This allows for faster transducer firing rates resulting in

 

 

faster data updates. The Mark III meter offers two update rates: rapid (0.25 sec) and

 

 

standard (1 sec) versus the typical Mark II update rate of about 5 seconds (for a

 

 

SeniorSonicTM meter).

 

•

AGA8 DETAIL METHOD. The Mark III meter adds the AGA8 Detail method for calculating

 

 

compressibilities.

 

•

OPTIONAL AGA10 SOUND VELOCITY CALCULATION AND COMPARISON. The Mark III meter optionally

 

 

calculates the AGA10 sound velocity and compares it on an hourly averaged basis to the

 

 

meter-measured sound velocity.

 

•

ENERGY RATE CALCULATION. The Mark III meter calculates the energy rate (if the heating value

 

 

is available). The energy rate is available for output on the frequency outputs and optional

 

 

analog output.

 

•

MASS RATE CALCULATION. The Mark III meter calculates the mass rate if the gas flow-

 

 

condition mass density is available (either specified or calculated as part of AGA8). The

 

 

mass rate is available for output on the frequency outputs and optional analog output.

 

•

OPTIONAL GAS CHROMATOGRAPH INTERFACE. The Mark III meter optionally interfaces to a

 

 

Daniel gas chromatograph via Modbus for retrieving live gas property data. This feature

 

 

requires use of the Option Board.

Meter electronics upgrade

299