IMPAC pyrometers series IN 5 plus
11
4.2.2
Connecting to RS485 interface
Half-duplex mode:
A1 and A2 as well as B1 and B2 are
bridged in the 12-pin round connector
of the connecting cable, to prevent
reflections due to long stubs. It also
safeguards against the interruption of
the RS485 Bus system should a con-
necting plug be pulled out. The master
labels mark the connections on the
RS485 converter. The transmission
rate of the serial interface in Baud
(Bd) is dependent on the length of the
cable. Values between 1200 and
19200 Bd may be set.
The baud rate is reduced by 50% when
the transmission distance is doubled
(see 9.2.3 Baud rate). Typical cable
length for 19200 Bd is 2 km.
4.3
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. Another Instruments like a controller or printer
can be connected to the display in series as shown above (total load of resistance max. 500 Ohm).
yellow
LED digital display
Controller
Power supply
green
brown
white
230 V ~
24 V DC
°C
Writer
5
Mechanical installation
5.1
Accessories (option)
Numerous accessories guarantee easy installation of the pyrometers. The following overview shows a selec-
tion of suitable accessories. You can find the entire accessory program with all reference numbers on sec-
tion 15, Reference numbers.
Mounting:
For easy mounting and aligning the pyrometer to the measured
object an adjustable mounting angle is available.
Mounting angle
Terminator 120 Ohm
A
B
S
K
A
B
C
D
J
G
F
E
H
M
L
K
A
B
C
D
J
G
F
E
H
M
L
K
A
B
C
D
J
G
F
E
H
M
L
DG
N
D
B1
A2
B2
A1
DG
N
D
B1
A2
B2
A1
DG
N
D
A2
B2
A1
B1
Master
Pyrometer 32
e.g. address 31
Pyrometer 2
e.g. address 01
Pyrometer 1
e.g. address 00
