Emerson Process Management 3420 Carbon Monoxide Alarm User Manual


 
138 Frequency Outputs Page
Section 5: Startup and meter configuration Reference, Installation, and Operations Manual
June 2013 3-9000-743 Rev S
Contract hour for daily log
Reverse flow: Select to Enable configure the meter to generate a reverse flow
alarm if it accumulates more volume in the reverse direction than what is set in
the Volume limit. For flow to be counted as reverse flow for this check, it must be
flowing at a velocity about the Low flow limit. This low flow limit is different from
the Volume cut-off threshold below which flow in not counted as flow for volume
accumulation. Every time the flow direction changes from forward to reverse,
the reverse flow accumulated volume is reset to zero. If the meter is a bi-
directional meter, this alarm should not be enabled in order to avoid this alarm
becoming active during periods of expected reverse flow.
3. Enter additional information as desired in the Notepad field.
4. Click the
Next button to continue the meter configuration. Daniel MeterLink displays
the
Field Setup Wizard - Frequency Outputs Page.
5.6.7 Frequency Outputs Page
Figure 5-10 Field Setup Wizard - Meter Frequency Outputs Page