Ultraflux UF 831, Руководство пользователя, Страница: 20 / 109

20
NT UF 831 CO GB (b) / March 2014
1) Analog inputs/outputs
The UF 831 allows two types of inputs/outputs to be used:

Current inputs/outputs (0-20mA, 4-20mA, 0-24mA) or voltage inputs/outputs (0-10V),
 Temperature measurement Pt 100 and Pt 1000 with 2, 3 or 4 wires.
The sensors must be powered externally. The wiring of the analog inputs/outputs is indicated in appendix 5:
Wiring of the inputs - outputs.
2) On/Off inputs/outputs (relay)
Each relay of the UF 831 is a normally-open relay contact:
 Breaking capacity of each relay: U < 50 V, I < 10 mA,
 The maximum frequency of a relay in pulse mode depends on the length of the pulse.
3) Serial link
The serial link is connected using a connector, which can be configured by RS232 or RS485 wiring. The
wiring diagrams are presented in appendix 5: Wiring of the communication port.
4) Connection to the PC
The connection to the PC is made using a USB connector on the front panel of the flow meter.