Hach sc1000 User Manual

94
Advanced Operations
Figure 57-Figure 59 show the behavior of the relay in the 2 Point Control function under
different conditions.
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.
2 POINT CONTROL
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)

Hach sc1000 Specifications

General

Operating Temperature	-20 to 60 °C (-4 to 140 °F)
Inputs	Up to 2 digital or analog sensors
Outputs	2 analog, 2 relay
Communication	Modbus
Power Supply	100-240 VAC
Enclosure Rating	IP66, NEMA 4X