Electrical Installation - Omega OS150 USB Guia Del Usuario

electrical inStallation

The sensor to electronics cable is a 1m, PVC cable. One end is attached, at the factory,
to the sensor head. The other end has a pair of wires and a shield (ground) wire.
WirinG
The OS150-USB sensor can be used in 3 different ways as shown below. To use the
4-20mA output, connect the OS150-USB sensor to the controller/indicator with the
24Vdc power supply in the loop using the following table and connection diagram as
a guide. The maximum loop impedance is 900 ohms. note: the os150-usb sensor
must be grounded at only one point, either the cable shield or the sensor housing.
output Wire no.
4 to 20mA 1
2
3
Alternatively, to use the USB output, connect the OS150-USB sensor to a PC using
the cable provided. No external power supply is required when using the USB output.
The OS150-USB sensor can also be used with both the 4-20mA loop and USB con-
nected, provided that the negative terminal of the 24Vdc power supply being used is
not grounded. note: the omegasoft software must be installed before connect-
ing the sensor to a pc.
Wire colour
Red
Black (Blue)
Bare
Red
Black
(Blue)
Red
Black
(Blue)
N/C
function
Power supply + / signal +
Power supply - / signal -
Shield ground
Power Supply
+ -
-
Display/
Controller
+
Power Supply
+ -
-
Display/
Controller
+
USB
PC
USB
PC
7