8
MAN0488.PM6 Issue 02
4 - 20mA to Catalytic Converter
04200-M-5012
2.3
INSTALLING
To install the Signal Converter Module, proceed as follows:
(1)
Ensure that the Control System channel Control Card to be converted is of
the bridge input type and its sensitivity is compatible with the converted
signal voltage of the Signal Converter Module.
(2)
Ensure that the Searchpoint Optima, or 4 to 20mA output device, is of the
current source type.
(3)
Inhibit the alarms at the control room.
(4)
Withdraw the associated channel Control Card to remove the power to the
circuit to be modified.
(5)
Install the Searchpoint Optima, or 4 - 20mA output device, as described in
their associated manual.
(6)
Ensure that the 0V line for the Searchpoint Optima, or 4 - 20mA device, is
common with the control system supply or is derived from the control
system control card.
(7)
Remove the Signal Converter Module front cover by prising the cover off
with a screwdriver.
(8)
Locate the links LK1, LK2 and LK3 and set the links to the required
positions as indicated below:
Control Card Make and Model
LK1
LK2
LK3
Supply Adjust
GP Elliot Type GP120
Out
In
Vertical
VR1501
GP Elliot Type SO242
Out
In
Vertical
VR6
ICS Type 200211
In
Out
Vertical
VR4
ICS Type 406675
Out
In
Horizontal
VR4
Sieger 5700
In
Out
Horizontal
RV1
Albion Controls SCE002
In
Out
Horizontal
RV1
IGD 605CC
In
Out
Vertical
R54
(9)
Replace the module front cover.
(10)
Disconnect any redundant sensor wiring to the Control Card input.
(11)
Remove the three DIN terminal blocks for the old sensor connections. ie.
Most positive or S, centre or 01 and most negative or NS.
