OxyTechw² GAL Instruction Manual
6 Electrical Installation
6.1 Electrical Installation
Unscrew the two cover screws on the lower panel of the 7300w² Monitor to reveal the Terminals. Each
terminal strip is labelled as illustrated below. (This equipment must be isolated or disconnected from
HAZARDOUS LIVE voltages before access). Refer to the 7300w² Monitor user manual for full description of
all the terminals within the monitor.
The maximum size wire that can be terminated is 2.5mm² CSA. All the connections are via removable
Plug/Socket terminals. To disengage the terminal strip, simply pull down to release.
6.2 Sensor Connections
When routing the sensor cables, please ensure the cable is separated from any mains cables. Although the
Partech w² sensors have a high resistance to interference, separation of mains and data cables is good
practice and should always be followed where practical.
All sensors in the w² range communicate with the monitor using the ModTechw² Protocol. This protocol has
been specifically designed to take advantage of the advanced features and diagnostics designed into the w²
range of sensors.
Note- These sensors can
NOT
be used with other monitors that are not
included in the w² family.
All sensors within the w² family of instruments are connected to the
7300w² Monitor using the same 4 wire configuration.
•
RED and BLACK wires provide the 12VDC supply to the sensor.
•
WHITE and GREEN provide data communication.
A maximum of two sensors can be directly connected to the standard
7300w² Monitor, additional sensors can be added using the optional
expansion boxes available separately.
Remove the 4-way connector from the 7300w² Monitor by pulling downwards to disconnect for easy access
to the connections. Connect the sensor wires as follows-
(Terminals from left to right on the 4 way connector)
Term 1 (Left)
-
RED (+12V)
Term 2
-
Black (0V)
Term 3
-
White (Data A)
Term 4 (Right) -
Green (Data B)
Always connect the screen drain wire with the Black (Term 2).
Always use Bootlace ferrules when terminating the sensors to ensure a good connection
to the terminals.
Page 12 of 28
224083IM-Issue 04 20/03/2018
