Event Control Function - Hach sc200 User Manual

Figure 20 Feeder control function (Phase low, Overfeed timer)
1 Deadband
2 Setpoint
3 Overfeed timer
4 Time (x-axis)
• Event Control Function (refer to
Figure 23)
Option Description
Set setpoint Sets the value where the relay will turn on.
Deadband Sets a hysteresis so the relay will not swing unregulated
when the process value converges to the setpoint.
32 nglis
5 ON delay
6 OFF delay
7 Source (y-axis)
Figure 21, Figure 22 and
Option Description
OnMax timer Sets the maximum time the relay can stay on independent
from the measured value (default: + 0 min).
OffMax timer Sets the maximum time the relay can stay off independent
from the measured value (default: + 0 min).
OnMin timer Sets the minimum time the relay can stay on independent
from the measured value (default: + 0 min).
OffMin timer Sets the minimum time the relay can stay off independent
from the measured value (default: + 0 min).