A.5 Configuring Smart Meter Using Pushbuttons

Using Pushbuttons on Meter to Configure Smart Meter Display

The smart meter can be set to show the PV out in engineering units that are appropriate for your process application. You can select an available engineering unit or enter a custom one including upper and lower display limit settings for the smart meter’s digital readout using buttons on the face of the meter.

Using the Smart Meter

Follow these guidelines when configuring the smart meter:

If you initiate an SFC command at the same time a button is pressed on the smart meter, the smart meter will respond to the command it receives last. In other words, the last command wins.

In most cases, you can press and release a button for one-shot operation, or press and hold a button for continuous, 1/2 second, repetitive operation.

Active setup field will begin to flash at one second rate if next action is not initiated within one second. And, if no action is taken within 30 seconds, the setup function will time out and the meter will return to its previous state.

Transmitter Output

Conformity and Smart

Meter Configuration

Normally when using a differential type transmitter, you can select the transmitter’s output to represent a straight linear calculation or a square root calculation for flow measurement applications. This linear or square root output parameter selection is called output conformity or output form. (See ST 3000 User Manual for more details.)

When configuring the smart meter to display the transmitter output measurement, there are certain rules to keep in mind which are dependent on the output conformity selection. These rules are described in the following paragraphs.

1.The output conformity setting of the transmitter restricts the engineering units you can select for the smart meter display.

When the transmitter is configured for an output conformity of LINEAR, you can select only pressure type engineering units. (See Table A-4.)

When the transmitter is configured for an output conformity of SQUARE ROOT, you can select only flow type engineering units GPM and GPH.

The percent and custom engineering units can be selected regardless of output conformity configuration.

2.Additionally, the output conformity setting restricts the setting of the lower and upper display limits to represent transmitter’s 0 to 100% output.

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