27
3.15 Additional Setup Menus Within the ALARMS Submenu
*Not included in the Quick Setup configuration
The
ALARMS
submenu (70) contains the setup menus for programming and viewing the flowmeter’s
alarm parameters. Up to 4 alarms may be independently programmed ON or OFF based on flow rate or
signal strength values. If the measured value of the selected condition falls outside the specified param-
eters, the alarm activates and causes the printer (if purchased with flowmeter) to print the flow data and/or
alarm status (Figure 3.15-A, below).
F
IGURE
3.15-A
3.15.1 Programming the Alarm
1.
Access Menu 71, and select an alarm to program
(Figure 3.15-B, page 28)
.
2.
Figure 3.15-C (page 28)
is displayed. Select an alarm ON condition:
•
NOT PROGRAMMED
(alarm OFF)
•
FLOW >
: alarm activates when flow rate is greater than ON condition value
•
FLOW <
: alarm activates when flow rate is less than ON condition value
•
SIGNAL >
: alarm activates when signal strength value is greater than ON condition value
•
SIGNAL <
: alarm activates when signal strength value is less than ON condition value
3.
Press the
DOWN ARROW
, and
Figure 3.15-D (page 28)
is displayed.
4.
Enter the value for the alarm ON condition, and press
ENTER
.
Flow units used for alarms are the same as flow units selected for measuring flow
in Menu 30.
5.
Press the
DOWN ARROW
, and
Figure 3.15-E (page 28)
is displayed.
6.
Select an alarm OFF condition: Selections available are the same as those for the ON condition. The
OFF condition value should be entered in conjunction with the ON condition value to establish a
dead band which prevents the alarm from continuously cycling on and off when flow is close to the ON
or OFF value.
For example, if the ON condition is
FLOW > 250 GPM
, the OFF condition may be set as
FLOW < 240
GPM
. With these settings, the alarm turns on when flow exceeds 250 GPM and does not turn off until
flow falls below 240 GPM.
7.
Press the
DOWN ARROW
, and
Figure 3.15-F (page 28)
is displayed.
8.
Enter a value for the alarm OFF condition, and press
ENTER.