Emerson Rosemount 2410 Reference Manual page 153

Reference Manual
00809-0100-2410, Rev DA
Figure C-1. Relay zones
Set Point 2
Set Point 1
1. The source signal passes set point 1, and the relay state changes according to the definition for Zone
1.
2. When the source signal returns into Zone 2, it does not change to the Zone 2 state until it has passed
the hysteresis zone.
3. The source signal passes set point 2, and the relay state is changed according to the definition for
Zone 3.
4. The relay switches back to the Zone 2 relay state when the source signal has passed set point 2 and
the associated hysteresis value.
Advanced Configuration
2
1
Relay State
Zone 1
Relay State
Zone 2
3
Relay State Zone 3
Advanced Configuration
ZONE 3
Hysteresis zone
4
ZONE 2
Hysteresis zone
ZONE 1
Time
Relay State Zone 2
March 2017
143