INFRATHERM
pyrometer IS 50-LO/GL
17
5 Electrical
installation
The
INFRATHERM
IS 50-LO/GL is powered by 24 V ± 25 % (18 … 30 V DC). When connecting it to the power supply
ensure correct polarity. The power consumption (in this case 4 - 20 mA) is also the measuring signal. The instrument
don’t need any time for starting or preheating and is immediately ready for operation. To switch off the instrument, inter-
rupt the instrument’s power supply.
To meet the electromagnetic requirements (EMV), a shielded connecting cable must be used. The shield of the connect-
ing cable has to be connected only on the pyrometer’s side. On side of the power supply (switch board) the shield must
be open to avoid ground loops.
5.1
Connector assignment for the converter
Connector:
3 pole flange plug; series 723 (Franz Binder GmbH & Co., Germany)
Pin 1
(white)
+24 V ± 25 %
Pin 2
(brown)
0 V
Pin 3
(black)
shield
5.2
Connection of additional analyzing devices
Additional analyzing instruments, for example a LED digital display instrument only needs to be connected to a power
supply and the analog outputs from the pyrometer (display devices from IMPAC have a built-in power supply for 2 wire
pyrometers and don’t need a separate power supply). Another Instruments like a controller or printer can be connected to
the display in series.
+
–
–
+
white
brown
Signal processor
4 ... 20 mA
Power supply
24 V DC
Display with
power unit
6 Mechanical
installation
6.1 Overview
3
2
1
