Hach-Lange POLYMETRON 9500 User Manual - Manual (Page 35)

Figure 19 Feeder control function (phase low, overfeed timer)
1 Deadband 4 Time (x-axis) 7 Source (y-axis)
2 Setpoint 5 ON delay
3 Overfeed timer 6 OFF delay
• Event control function (refer to Figure 20 , Figure 21 and Figure 22 )
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.
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).
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