6
MAN0488.PM6 Issue 02
4 - 20mA to Catalytic Converter
04200-M-5012
The module is designed for use in safe areas only and is contained in a rugged
plastic enclosure which clips onto a standard 35mm DIN rail. It replaces the set
of three 6mm wide DIN rail mounted terminals S, NS and 01 so that it requires
no extra space at the back of the control cabinet or rack.
The module operates at a supply current of 200 to 300mA drawn from the control
card supply which would normally be used to power the catalytic sensor.
The module contains three user configured links which must be set prior to
commissioning. These links set the ground reference for the control current and
the polarity of the mV output signal. The position of these links are shown in
Figure 3.
Figure 2 Interconnecting Diagram
0V
+24V (Red)
0V (Black)
4 - 20mA
(White)
G
H
A
B
D
C
+24V
NS
01
S
Most +ve
Centre
Most -ve
Control System
Bridge Input
Circuit
Signal
Converter
Searchpoint
Optima
Note:
Terminals E and F provide a convenient straight through wiring
connection for the external transducer and have no connection to the
converter internal circuitry.
F
E