THE ART OF WELDING
P6
40-92 PN-0509076 Rev. 16
1
2
Oxygen meter option4. 4. 12.
This chapter provides a description of the interface between the power source and the oxygen meter.
It is possible to install an oxygen meter to the power source-HMI assembly. Communication
for the oxygen meter and the power source is provided by an RS232 serial port cable whose operation is fi xed
at 19200 baud.
In order to use an oxygen meter with the power source it
is essential to use the RS232 serial port cable supplied by
Polysoude. Use of any other cable will result in major mal-
function.
Connect the RS232 serial port cable to connector FA 22 (Fig.4.16 – Pos. 1) on the connection panel at the rear
of the power source. Connect the other end of the RS232 serial port cable to the front panel of the oxygen meter
(Fig.4.17 – Pos. 1).
Please refer to the HMI user manual in order to adjust settings of the oxygen meter on the HMI.
It is particularly important to refer to the oxygen meter user manual. In it, you will fi nd detailed explanations of
the various functions of the equipment.
Oxygen meter settings
Two parameters must be set on the oxygen meter and two parameters must be checked before use.
If one of these parameters is not set correctly or if the value received by the HMI differs from the value program-
med, the HMI will indicate “Oxygen fault”.
The parameters to be checked before use are:
The temperature of the probe must be at 750°C (permitted value between 748 and 752°C).•
The airfl ow must be adjusted to between 5L/min and 10L/min. The pump must be running. If it is not, the •
HMI will indicate “Oxygen fault”.
The parameters to be set before use are:
The «Documentation» line of the display must be at «Off» in the «Basic Settings» menu.•
The value of «Baud» must be set to 19200 in the «System Settings» menu.•
In order to perform these settings and to start to use the equipment, please refer to the oxygen meter user
manual.
Fig. 4.17 - Power source rear connection panel and oxygen meter
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