Teledyne 9060 - Zirconium oxide flue gas oxygen analyzer - Manual (Page 69)

9060-Zirconia Analyser
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83. Print Log Period
Select the time interval between data print outs on the printer.
When the print period is selected below “1 minute”, the selection will automatically switch
to “seconds”. The time can then be selected up to 120 seconds. Above 120 seconds the
time will switch automatically back to minutes.
NOTE: The print log could be up 2 seconds after the expected time.
Range:
5 to 120 seconds, 1 to 2000 minutes
84. Printer Baud Rate
Select the correct BAUD rate for data to be transmitted out of the port to the printer.
Options:
300
1200
2400
4800
9600 *
85. Reference Air Selection
The reference air supply for the oxygen sensor is normally supplied from the transmitter. If
the internal pump is not being used, ‘External’ must be selected to stop the ‘Ref Pump Fail’
alarm. If an external air supply that has a known relative humidity, select ‘Instrument Air’.
This will allow the relative humidity level to be entered in set-up 86.
Less than half a litre per minute provides sufficient reference air for any sensor.
Note: If ‘Internal’ is selected, and a reference airflow sensor is connected to CN8 on the
1630-2 (terminal) PCB, the pump is cycled on and off within a minute.
Options:
Internal *
External
Instrument air
86. Reference Air Relative Humidity
This selection will only appear if ‘Instrument Air’ is selected in set-up 85.
If the reference air is being supplied from an instrument air supply, the relative humidity will
be different from the ambient air being measured within the transmitter. In this case set
the set the RH to the RH of the air supply. As a guide, the RH of a compressor driven air
supply is about 10%.
Range:
1-100%
87. Damping Factor
Each time a new reading is read from the oxygen probe or sensor, the new reading is
averaged with the last readings taken, before the new average is either displayed on the
LCD, or sent to the 4 to 20 mA output. The number of readings that are averaged together
is adjustable with this function. A value of five for example, means that the new reading
from the probe or sensor and the previous four readings are averaged together before
being displayed. A value of one entered here will mean that every new reading from the
probe or sensor will be sent to the display unaltered.