Sierra FLAT-TRAKTM 780S - Manual (Page 27)

Series 780S Instruction Manual Chapter 3 Operation
IM-78S-B 3-1
Chapter 3 Operation
This chapter covers flow meter operation, programming and instru-
ment validation procedures. All instructions include directions for
using either the optional LCD display or the internal Smart electron-
ics device for programming. If your meter is not equipped with the
optional display, you will need a good quality digital voltmeter or
multimeter for programming and validation procedures.
Flow Meter Start Up
When applying power to a flow meter equipped with the optional
LCD display you will see the product name, the software version,
unit serial number, the range number, the user full scale (UFS), the
current flow rate and the totalized flow. Any active alarm will flash
on the screen every few seconds.
When applying power to a flow meter without the display, the Smart
electronics on-board single-digit LED flashes the revision number of
the software in a series of 3 digits followed by the range number.
The range number continues to flash every three seconds thereafter.
Record Factory-Set Parameters
You may view parameters using the optional LCD front panel dis-
play or by selecting functions on the single-digit LED and viewing
the meter’s 0-5 VDC output with a digital voltmeter (DVM).
For meters with the LCD display, use a hand-held magnet or the de-
vice buttons to select the FUNCTION key. When FUNCTION is
selected, the display prompts for a password. Select FUNCTION
again to skip the password to view and record the factory settings.
To make changes, at the password prompt use the UP arrow until
the number 11 is displayed. Select FUNCTION again to continue.
For flow meters without the display, remove the enclosure cover to
access the Smart electronics device. Connect the DVM as described on
the following pages and record the factory-set parameters.
Smart Electronics Device
Single
digit LED
Function
Up
Down
Inside cover Inside cover
Figure 3-1. Smart Electronics Device Locations