Hach sc1000 user manual Relay behavior-2 Point Control mode without delay, MIN Timer Expire

Advanced Operations

2 POINT CONTROL

MIN TIMER EXPIRE

Default value: 0 seconds (off)

Indicates a period of time (in seconds) for the release of the OnMin TIMER and the OffMin

TIMER.

Relay turned on, OnMin TIMER activated: Displays the time left before the relay can be turned OFF again.

Relay turned off, OffMax TIMER activated: Displays the time left before the relay can be turned ON again.

Figure 57-Figure 59 show the behavior of the relay in the 2 Point Control function under different conditions.

Figure 57 Relay behavior—2 POINT Control mode (without delay)

1	High Alarm	4	OffMax-time
2	Low Alarm	5	OnMax-time
3	Time (x-axis)	6	Source (y-axis)

Table 30 Color/line code for Figure 57

Selected Source

Relay contact (phase high)

94