Hach-Lange EVITA OXY User Manual - Manual (Page 18)

16
The transmitter is connected using the two-wire,
shielded cable. The two leads carry supply voltage,
a 4-20 mA current signal and HART
® communication.
Fig. 25
Depending on the USC version the power supply
should be connected to terminals L, N and PE when
using 100-240 V a.c., or to terminals 1 and 2 when
using 24 V a.c./d.c., see fi g. 25 and fi g. 26.
If the cable is extended, the total length of the cable
must not exceed 1000 m (3000’). Always use two-
wire, shielded cable for the extension (min. 2 x 0.2
mm
2 (24 AWG)).
Fig. 25a
USC 5000/6000 and OXY 4100/4150 point to point
USC 5000/6000 - IP 67 version USC 6000 - 19” version
Shield
Black
Red
Relay 3*
Relay 2*
Relay 1*
I out 1
I out 2*
*Only USC 6000
I out 1
Relay 3
Shield
Black
Red
I out 2
Relay 2
Relay 1
Digital input
Digital input
Fig. 26
On the USC signal converter it is possible to
disable the function of the digital input (used for
calibration control on the EVITA INSITU 4100
transmitter).
Note: The digital input is available on both USC
5000, USC 6000 and USC 7000.
Input
USC
Digital input
USC
Function
On
DIG IN
On
Off
081R9433.02.01