Teledyne 9060Z - Zirconium oxide flue gas oxygen analyzer - Manual (Page 50)

Model 9060Z Manual
50
11. The output should go 20.00mA. The value in function #7 (10) can be fine tuned if necessary.
12. Go back to function #5 (8) and select ‘Calibrate 4mA’ again and check that the output is still set
to 4.00mA. If it is not exactly 4.00mA the value in function #6 (9) can be trimmed again.
13. Go back to function #5 (8) and select ‘Manually Calibrated’.
10.1.3 PROBE CALIBRATION
There is only one calibration factor for the calibration of the oxygen probe. This is the sensor offset,
and it is written on a tag attached to every probe.
Use the FUNCTION keys to go to SETUP menu #1 (2) and then use the OPTION keys to set the value to
the value written on the tag. If in doubt the best option is to set the offset to 0.0mV because this will
only produce an error of around 0.1% oxygen in a combustion application for a 1mV error in the offset
value.
For information on checking the probe and transmitter system with a certified gas see chapter 11.
10.2 COLD START
The intention of the cold start function of the transmitter is to return all of the configuration set up
back to the default values. There are 3 parts to the cold start:
1. If a software upgrade is installed and the changes require a change to the menu functions then
the transmitter will automatically do a cold start. The transmitter will also do a cold start when
the power is turned on and the configuration / calibration factors are found to be corrupted. It
will only reset either the configuration values or the calibration values if either of them is
found to be corrupted.
2. A cold start can be forced if the operator wants to reset the transmitter back to the default set
up. See chapter 10.2.1, Forcing a Cold Start.
3. Resetting the calibration factors back to the default values. See chapter 10.2.2, Resetting the
Calibration Factors.
10.2.1 FORCING A COLD START
The cold start can be initiated by following these steps:
1. Turn the transmitter power off.
2. Use a fine point or screw driver to turn the COLD START switch on. The switch is at the bottom
of the 1732‐1 PCB, accessible through the window in the shield.
3. Turn the transmitter back on.
4. You will be prompted to select ‘Reset’ or ‘Cancel’ to the prompt ‘Reset Calibration Data?’.
Press the DISPLAY up key to reset the calibration factors and the configuration data or the
ALARM up key to only reset the configuration of the transmitter.
5. Turn off the cold start switch when prompted by ‘Turn off C/Start Switch’.
If the calibration factors have been reset, follow the instructions in chapter 10.1 to recalibrate the
transmitter. If only the configuration has been reset it is also important to check items that will affect
the transmitter outputs, number of probes, the serial communications, the solenoid configuration and
other items.
10.2.2 RESETTING THE CALIBRATION FACTORS
If it is required to reset the calibration factors, follow the instructions in the previous section and
select ‘Reset’ when prompted to ‘Reset Calibration Data?’.