Section 6: Meter operation

Reference, Installation, and Operations Manual

June 2013

3-9000-743 Rev S

 

 

6.6.2Hourly log

The Mark III meter stores an hourly log record once per hour on the hour. The meter can store up to 2400 hourly records (100 days’ worth). The user can select whether old, unread records can be overwritten by new records when the log becomes full via the data point DoOverwriteUn- readHoulyLog. This point can be modified using the Daniel MeterLink Tools - Edit/Compare Configuration screen. The default is to overwrite old, unread records. Refer to Section 6.6.6 for information on reading records and marking records as read. The data point IsHourlyLogFull indicates whether or not the hourly log is full and cannot overwrite old, unread records.

The data points included in the hourly log and the corresponding log action are as shown in the table below. Data points required by the API Chapter 21 standard are marked with an asterisk

(*). (Refer to Section 6.6 for information on the log action types.) For information on a particular data point, consult Daniel MeterLink online help. (There is a help topic for each data point. From Daniel MeterLink, click on Help, click on Mark III Registers Reference, select the Index tab, start typing the data point name until the desired point is highlighted, and then click the Display button.)

Table 6-19 Hourly log content

Data Point

Log Action

 

 

PosVolFlow*

Totalize and Snapshot

 

 

NegVolFlow*

Totalize and Snapshot

 

 

PosVolBase*

Totalize and Snapshot

 

 

NegVolBase*

Totalize and Snapshot

 

 

PosEnergy

Totalize

 

 

NegEnergy

Totalize

 

 

PosMass

Totalize

 

 

NegMass

Totalize

 

 

FlowTemperature*

Flow-Gated

 

 

FlowPressure*

Flow-Gated

 

 

AbsFlowPressure*

Flow-Gated

 

 

AccumFlowTime*

Totalize

 

 

AvgSndVel*

Flow-Gated

 

 

CompAvgMeterSndVel

Snapshot (the value is itself an hourly

 

average)

 

 

CompAvgAGA10SndVel

Snapshot (the value is itself an hourly

 

average)

 

 

236

Hourly log