Emerson Process Management 3420 Carbon Monoxide Alarm User Manual


 
152 Temperature and Pressure page
Section 5: Startup and meter configuration Reference, Installation, and Operations Manual
June 2013 3-9000-743 Rev S
3. To configure Live Pressure, plus associated alarms, choose the setting listed in the table
below):
Table 5-18 Live Pressure Inputs
Daniel MeterLink
Display Name
Options and Guidelines
Is pressure gage or absolute?
Gage (FALSE)
Absolute (TRUE)
Atmospheric pressure
Enter a value (KPaa or psia) within the range [30.0, 108.40 KPaa]
This data point is only applicable when the input pressure unit is
specified as gage.
Live pressure, Min input
Enter the pressure (KPag or psig if gage, KPaa or psia if absolute)
that corresponds to a 4 mA input signal. The pressure must be
within the range [0, 280e3 KPag or KPaa].
Live pressure, Max input
Enter the pressure (KPag or psig if gage, KPaa or psia if absolute)
that corresponds to a 20 mA input signal. The pressure must be
within the range [0, 280e3 KPag or KPaa].
Pressure alarm, Low limit
Enter a value (KPag or psig if gage, KPaa or psia if absolute) within
the range [0, 280e3 KPag or KPaa]. An alarm is generated when
the pressure is at or below this limit value.
Pressure alarm, High limit
Enter a value (KPag or psig if gage, KPaa or psia if absolute) within
the range [0, 280e3 KPag or KPaa]. An alarm is generated when
the pressure is at or above this limit value.
Alarm Selection
The Alarm selection determines what value to use while a live
input is in alarm. This value is common with the pressure Alarm
selection so when one is changed, the other will change to match.
Choose Last good value or Fixed value