Hach sc200 User Manual

Increasing Contact Life Span
To increase the life span of the relay output contacts and protect the
device from potential damage by reverse EMF, connect:
• a clamping diode in parallel with each inductive DC load
• an RC snubber circuit in parallel with each inductive AC load.
O0 Zone 1 Alarm O5 Zone 6 Alarm
O1 Zone 2 Alarm O6 Zone 7 Alarm
O2 Zone 3 Alarm O7 Zone 8 Alarm
O3 Zone 4 Alarm O8 Zone 9 Alarm
O4 Zone 5 Alarm O9 Horn Relay
Figure 4-3. Relay Outputs
4-6

Hach sc200 Specifications

General

Enclosure Rating	NEMA 4X/IP66
Operating Temperature	-20 to 60 °C (-4 to 140 °F)
Ambient Temperature	-20 to 60 °C (-4 to 140 °F)
Enclosure Material	Polycarbonate
Operating Humidity	0 to 95% non-condensing
Relay Outputs	Up to 4 SPDT relays
Storage Conditions	-40 to 70 °C (-40 to 158 °F)
Display	Graphical LCD
Inputs	2 digital sensor inputs
Outputs	4-20 mA
Power Supply	100 to 240 VAC, 50/60 Hz
Analog Outputs	2 or 4, 0/4-20 mA
Certifications	CE
Communication	Modbus RTU, HART
Dimensions	144 x 144 mm
Mounting	Panel mount
Output	4-20 mA
Power Requirements (Voltage)	100 to 240 VAC
Warranty	1 year
Weight	1.2 kg