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Reference, Installation, and Operations Manual Upgrading a Mark II to a Mark III
3-9000-743 Rev S June 2013
Flow pressure and temperature 311
C.4.11 Flow pressure and temperature
If the Mark II configuration EnablePressureInput or EnableTemperatureInput parameter is set to
0 (None) or 2 (Specified/Fixed), then the Mark II parameter is copied to the corresponding
Daniel 3410 Series Ultrasonic Gas Flow Meter data point (EnablePressureInput, EnableTem-
peratureInput).
If the Mark II meter is configured for live input (i.e.,
EnablePressureInput or EnableTemperatureInput
parameter is set to 1 (Live)), the conversion depends upon whether or not the Daniel 3410
Series Ultrasonic Gas Flow Meter supports live input. If the Daniel 3410 Series Ultrasonic Gas
Flow Meter supports live input (i.e., the Option Board is present and the CPU firmware is
version 1.30 or later), then the Mark II parameter is copied to the corresponding Daniel 3410
Series Ultrasonic Gas Flow Meter data point (EnablePressureInput, EnableTemperatureInput).
Otherwise, the corresponding Daniel 3410 Series Ultrasonic Gas Flow Meter data point is set to
2(Fixed).
C.4.12 AGA8 method
The Mark III HCH_Method data point allows for the selection of no AGA8 calculations (a
selection that the Mark II does not provide).
If the Mark II
HCH_Method parameter is set to External(0) and the Mark II SpecRhoMixFlow,
SpecZFlow, and SpecZBase parameters are equal to zero, then the Mark III HCH_Method is set to
None(4). Otherwise the Mark II
HCH_Method is copied to the Mark III HCH_Method data point.
C.4.13 Minimum hold time
For some older Daniel 3410 Series Ultrasonic Gas Flow Meter firmware versions, the hold time
lower limit is longer than that of the Mark II. Thus, if the Mark II
MinHoldTime parameter is less
than the Mark III hold time lower limit, the Mark III MinHoldTime data point is set to its lower
limit. Otherwise, the Mark II
MinHoldTime is copied to the Mark III MinHoldTime data point.
C.4.14 Log Format parameters
Mark III archive logs (daily, hourly, audit, alarm, and system) are not readable via Modbus. They
are optionally read using a faster, more efficient method via the Daniel MeterLink
Logs/Reports -
Meter Archive Logs
screen. See Section 6.6 for further information on Mark III log retrieval using
Daniel MeterLink. Thus, the Mark II LogDateTimeFormat, LogDailyVolumeFormat, and
LogHourlyVolumeFormat parameters are not converted.