Onicon System-40-BAC BTU Bedienungsanleitung PDF herunterladen (Seite 15)

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System-40-BAC BTU Meter Manual 03/15 - 1045-2 Page 15

SECTION 4.0: SYSTEM-40 START-UP AND COMMISSIONING

4.1 START-UP

When power is rst applied to the meter the display will be illuminated and the following start

screen will appear. Momentarily press SEL (select) to access the operating mode (User Screens)

display pages.

Verify that the meter is functional by stepping through the display pages and conrming the

ow rate and temperature data is within expected norms. Momentarily press NEXT or BACK

to change the displayed page. A complete list of the display pages is provided on the following

page.

Alarm Indication

Unit of Measure

When reviewing the displayed data, note the factory programmed engineering units on each

display page (e.g. kBtu, gallons, kBtu/h, gpm, °F, etc.). Note any changes that may be necessary.

These will need to be made during commissioning.

When reviewing the Supply and Return temperature display pages note which one has the word

“FLOW” in the lower left corner of the page. This is an indication of the ow sensor location in

the piping system. Verify the actual location of the ow sensor in the piping system. It is critical

that the correct location (supply or return) be programmed into the meter.

CAUTION

During start-up and commissioning, the FLOW location must be properly identied as being

in the supply or return pipe of the heat exchange circuit. The sensor’s position must then be

programmed into the meter. Failure to do so will result in signicant errors in both the ow

and energy measurements.

To return to the commissioning mode from the user screens, momentarily press MENU. The

following page will appear. Momentarily press EXIT to return to the start screen.

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Onicon System-40-BAC BTU Bedienungsanleitung Seite 15