Installation
Model 3110
Teledyne Analytical Instruments
10
2.3 Sensor Installation
The Model 3110P can accept various percent oxygen sensors. For
most applications the B1 or A5 sensor is used. The installation
procedure is similar for either sensor.
2.3.1 Installing the Percent Sensor
To install a percent sensor:
1.
Remove the cell holder cap from the bottom of the
instrument.
2.
Remove the sensor from its packaging.
3.
Remove the shorting plug at the top of the sensor.
4.
Place the sensor on the top of the cell holder cap with the
concentric gold rings facing up.
5.
Screw the cell holder cap and sensor into the bottom of the
analyzer.
2.4 Calibration
Calibration involves using a span gas to calibrate the instrument.
The proper span gas oxygen concentration depends on the range that the
instrument will be used. The correct concentration should be 80-90% of
the range used. For instance, if the analyzer is to be used on a range of 0-
1% oxygen, then a span gas should be prepared with 0.8-0.9% oxygen in
nitrogen. If the analyzer is going to be used on a higher percent range,
acceptable accuracy may be obtained using air as a span gas.
2.4.1 Calibration Using Air for Percent Analysis
Note: Calibration requires a familiarity with the operational
screens and general operation of the instrument. Read
Chapter 3 to understand how to operate the instrument
before proceeding with the calibration step.
To calibrate the instrument using ambient air as a span gas:
1.
If not already powered up, press the ENTER key to turn the
instrument on.
2.
Set the filter to 1 or 2 on the filter screen.
3.
Navigate to the
SPAN VALUE
screen and set the span to
20.9%. See Section 3.2.6.
