Siemens Sitrans LR250 Instruction Manual page 78

2.3.1.9.
2.3.1.9.1.
2.3.1.9.2.
2.3.1.9.3.
2.3.1.9.4.
2.3.1.9.5.
Page 72 SITRANS LR250 (PROFIBUS PA) – INSTRUCTION MANUAL
Output Limits
Lower Limit Alarm
The setting for the lower alarm limit in AIFB1 units.
Values
Lower Limit Warning
The setting for the lower warning limit in AIFB1 units.
Values
Upper Limit Warning
The setting for the upper warning limit in AIFB1 units.
Values
Upper Limit Alarm
The setting for the upper alarm limit in AIFB1 units
Values
Limit Hysteresis
Hysteresis is used to adjust the sensitivity of the trigger for alarm
messages. It is used to compensate when a process variable
fluctuates around the same value as a limit. A high level alarm occurs
when a value exceeds an upper limit. The alarm's status remains
true until the value drops below the limit minus the alarm hysteresis.
The directions are reversed for low limit detection.
Values
Enter a value for the hysteresis here, to be used for all warnings and
alarms. The units are the same as the Output scale, i.e. AIFB1 units.
Range: -999999 to 999999
Default: -999999
Range: -999999 to 999999
Default: -999999
Range: -999999 to 999999
Default: 999999
Range: -999999 to 999999
Default: 999999
Range: -999999 to 999999
Default: 0.50
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