Mace HydroMace XCi, Руководство по эксплуатации продукта, Страница: 48 / 270

Wiring analogue inputs
Two-wire 4-20mA input
Each I/O card provides up to two 4-20mA inputs for connecting devices such as ultrasonic depth sensors
and/or flow meters. The 4-20mA input terminals available on each I/O card are shown in the diagram below.
NOTE: When powering 4-20 mA sensors, users should be aware that the voltage
drop may mean that less than 12 VDC is available. This may result in erratic sensor
behaviour.
After completing the wiring, configure the sensor using (see Add a new "4-20mA" input type )
Three-wire 4-20mA input
Each I/O card provides up to two 4-20mA inputs for connecting devices such as ultrasonic depth sensors
and/or flow meters. The 4-20mA input terminals available on each I/O card are shown in the diagram below.
After completing the wiring, configure the sensor using (see Add a new "4-20mA" input type )
Voltage input
Each I/O card provides up to two voltage inputs for connecting devices such as ultrasonic depth sensors,
conductivity probes and/or temperature sensors. The voltage input terminals available on each I/O card are
MACE XCi User Manual - 48 -