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186 UDC 6300 Process Controller Product Manual 1/03

5.15 Input Math Algorithms, Continued

Totalizer function

A Flow Totalizer is available as part of the Math Algorithm option. This

calculates and displays the total flow volume being measured by input 1.

Alternatively, it can be applied to either Input Algorithm 1 or Input

Algorithm 2 to totalize the compensated flow rate being calculated by the

algorithm.

The totalizer displays the current totalized flow value (up to eight digits

maximum). Seven scaling factors are available (from 1 to 1 million). The

desired scaling factor is applied to the calculated value to extend the

maximum total flow range that can be displayed.

Five integration rates are available to match the totalizer rate to the rate

of flow being measured. The rate are:

Engineering Units (EU) per second

EU per minute

EU per hour

EU per day

Millions of units per day

The Totalizer value is stored in non-volatile memory once every eight

hours. If power is lost while the totalizer is in operation, the current value

of the totalizer will be lost. When power is restored, the Totalizer will

start operation for the last value stored in non-volatile memory. The “Σ

(Sigma)” display will blink to indicate this condition. Reset the Totalizer.

The Totalizer can be reset from the keyboard whenever desired or by

configuring a Comparator Logic Gate.

The Totalizer should always be reset to initialize the counters whenever it

is enabled, otherwise, the “Σ (Sigma)” display will blink

Refer to Section 3 - Configuration, Set Up group ALGORTHM”, function

prompt “TOTALIZER” to select an application and the function prompts

that follow “TOTALIZER” to enter your scale factor and rate of

integration.

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United Security Products AVD-45c Handbuch Seite 200