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Reference Manual
00809-0100-4021, Rev DA
November 2004
Rosemount 3144P
3-16
HART
Figure 3-2. Change in Input
versus Change in Output with
Damping Enabled.
AMS
Right click on the device and select “Configuration Properties” from the
menu. If Sensor 1 is mapped as your primary variable, select the Sensor 1
tab.
• Snr1 damp
Apply changes made (see “Apply AMS Changes” on page 3-5).
Alarm and Saturation
The Alarm/Saturation command allows the user to view the alarm settings (Hi
or Low). With this command it is also possible to change the alarm and
saturation values. To change the alarm values and saturation values, select
the value to be changed, either 1 Low Alarm, 2 High Alarm, 3 Low Sat., 4 High
Sat, or 5 Preset Alarms. Enter the desired new value. It must fall within the
guidelines given below.
• The low alarm value must be between 3.50 and 3.75 mA
• The high alarm value must be between 21.0 and 23.0 mA
The low saturation level must be between the low alarm value plus 0.1 mA
and 3.9 mA for the standard HART transmitter. For the safety certified
transmitter the lowest saturation setting is 3.7 mA and the highest is 20.9 mA.
Example:
The low alarm value has been set to 3.7 mA. Therefore, the low
saturation level, S, must be as follows:
3.8 ≤ S ≤ 3.9 mA.
The high saturation level must be between 20.5 mA and the high alarm value
minus 0.1 mA for the standard HART transmitter. The highest saturation
setting for the Safety Certified transmitter is 20.9 mA.
HART Fast Keys 1, 3, 4, 2
100.0
101.0
102.0
103.0
104.0
105.0
106.0
107.0
108.0
109
.
0
0.00.51.01.52.02.53.03.54.04.55.05.56.06.57.07.58.08.59.09.510.
0
Input Value
Output Value
Time (Seconds)
Temperature