Electrical Installation - Calex PyroUSB Serie Guía Del Operario

electrical inStallation

The sensor to electronics cable is a 1 m 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 PyroUSB sensor can be used in 3 different ways as shown below. To use the 4-20 mA
output, connect the PyroUSB sensor to the controller/indicator with the 24 V DC
power supply in the loop using the following table and connection diagram as a guide.
The maximum loop impedance is 900 ohms. note: the pyrousb sensor must be
grounded at only one point, either the cable shield or the sensor housing.
output
4 to 20 mA
Alternatively, to use the USB output, connect the PyroUSB sensor to a PC using the
cable provided. No external power supply is required when using the USB output. The
PyroUSB sensor can also be used with both the 4-20 mA loop and USB connected,
provided that the negative terminal of the 24 V DC power supply being used is not
grounded. note: the calexsoft software must be installed before connecting the
sensor to a pc.
›
6
Wire no. Wire colour
1 Red
2 Black (Blue)
3 Bare
function
Power supply + / signal +
Power supply - / signal -
Shield ground
Power Supply
Red
+ -
-
+
Black
(Blue)
Power Supply
Red
+ -
-
+
Black
(Blue)
USB
N/C
USB
Display/
Controller
Display/
Controller
PC
PC