Sierra FLAT-TRAKTM 780S - Manual (Page 28)

Chapter 3 Operation Series 780S Instruction Manual
3-2 IM-78S-B
Using the Smart Electronics Basic Features
This section covers the basic features of the Smart electronics and in-
cludes instructions on:
•
entering alarm parameters
•
changing the user full scale
•
adjusting the K-factor
•
adjusting the time response speed
•
resetting the totalizer
To access the meter’s advanced features of zero and span, turn to
page 3-11. Instrument validation procedures begin on page 3-13.
Note: when programming the instrument, after 12 seconds of non-
activity the meter returns to the Run Mode with any new settings imme-
diately in effect. For units without a display, if the unit “times-out”
press the FUNCTION button only to resume adjustments.
Hazardous-Area Enclosure Optional LCD Display
For units with the optional display, you may program the meter
without opening the enclosure using the magnetic switches to enter
the desired system settings.
NOTE: When activating magnetic switches, variables first cycle up or
down at a slow rate. When holding the magnet in position for longer
than three seconds, the cycle speed increases to a faster rate.
1. Position magnet over FUNCTION, UP or DOWN (the LED lamp indicates
switch activation).
2. Hold in place until the desired variable is displayed. Remove magnet.
Position magnet at the
midpoint of the enclosure
over the desired switch
x
FUNCTION
DOWN UP
LED
indicator
Hazardous-Area Enclosures ONLY
To activate the magnetic switches for programming:
Figure 3-2. Magnetic Switch Operation
Caution!
Before making any ad-
justment to the Smart
electronics device, verify
the flow meter is not ac-
tively monitoring or report-
ing to any master control
system. Any adjustment
to the electronics will
cause direct changes to
flow control settings.