Connect An External Controller; Connect External Sensors; Connect Optional Devices - Hach 5500sc Instalación

Connect an external controller

An external sc controller can connect to the analyzer. Connect an external controller cable (6773200)
to the external sc controller and the external controller connection of the analyzer. Refer to the
external controller cable documentation.

Connect external sensors

External digital sc sensors can connect to the analyzer with the optional Smart Probe Adapter
(9321000). Refer to the Smart Probe Adapter documentation.

Connect optional devices

Install the cables for output or input devices as shown in
that is specified for the connection. To configure a device, refer to the operations manual.
Figure 11 Device connection
Connect to the relays
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.
Wire gauge less than 1.0 mm
The analyzer contains relays for sample concentration alarms (2x), analyzer system warning and
analyzer system shutdown. Refer to
(NO = normally open, COM = common, NC = normally closed).
Connect to the 4–20 mA outputs
Use twisted pair shielded wire for the 4–20 mA output connections. Connect the shield at the
recorder end or the analyzer end. Do not connect the shield at both ends of the cable. Use of non-
shielded cable can result in radio frequency emission or susceptibility levels higher than the allowed
levels.
Note: The 4-20 mA outputs cannot be used to provide power to a 2-wire (loop-powered) transmitter.
C A U T I O N
N O T I C E
2
(18 AWG) is not recommended.
Wiring connections overview
Figure 11. Make sure to use the wire gauge
on page 12 to connect a device
English 15