Installation Model 7500ZA
Teledyne Analytical Instruments 18
• Used when the external zirconia O2 sensor or the external O2
sensor is ordered. It is not required or used if the analyzer has a
built-in O2 sensor.
• Connect the dedicated connector (accessory) to the output of the
external zirconia sensor or the external O2 sensor (shipped
separately).
• When using an external O2 sensor, the input signal should be 0 to
1 VDC with respect to the O2 full scale of the analyzer. The O2
concentration display, output, and O2 correction can then be
performed correctly.
Note: The O2 sensor input is not isolated. TAI recommends that it
be isolated when an external O2 analyzer is installed
remote from the analyzer. The zirconia O2 sensor should
be installed at a location that is as close to the analyzer as
possible.
The figure below shows how to connect the O2 signal to the
dedicated connector (accessory).