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3.5.4 Connect the analog outputs
In the SC1000 Controller, there is an analog output card. The analog output card supplies four
4–20 mA (or 0–20 mA) analog outputs. The signal on each analog output represents one measured
parameter. Refer to
Table
devices.
Refer to the Expansion cards and Output card connections sections of the SC1000 Controller User
Manual to connect the analog outputs. Make connections with twisted-pair shielded wire and connect
the shield to the shield terminal.
To change the analog output scale from 4–20 mA to 0–20 mA or the measurement range, refer to
Output setup menu of the SC1000 Controller User Manual.
Notes:
• The analog output terminals accept 1.5 mm
• Do not connect the cable shield at both ends of the cable.
• Use of non-shielded cable may result in radio frequency emission or susceptibility levels higher
than allowed.
• The analog outputs are isolated from the other electronics, but are not isolated from each other.
• The analog outputs are self-powered. Do not connect to a load with voltage that is independently
applied.
Table 4 Wiring information—Analog outputs (defaults)
Terminal
1
2
3
4
5
6
7
8
9
3.5.5 Connect the alarm relay
Potential Electrocution Hazard. Power and relay terminals are designed for only single
wire termination. Do not use more than one wire in each terminal.
Potential fire hazard. Do not daisy-chain the common relay connections or jumper wire
from the mains power connection inside the instrument.
Fire hazard. Relay loads must be resistive. Always limit current to the relays with an
external fuse or breaker. Obey the relay ratings in the Specifications section.
4. Use the analog outputs for analog signaling or to control external
2
(15 AWG) wire maximum.
Signal
Output 1 +
Output 1 -
Output 2 +
Output 2 -
Output 3 +
Output 3 -
Output 4 +
Output 4 -
Shield (PE)
W A R N I N G
W A R N I N G
C A U T I O N
Measurement
PAH
(turbidity
compensated)
Turbidity
pH
Conductivity
4–20 mA range
0 to 500 ppb
0 to 400 FNU
2.5 to 11 pH
0 to 2,000,000 µS/cm
English 15
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