Teledyne 3110 – Portable Trace/Percent Oxygen Analyzer, FM-approved configuration - Manual (Page 18)

Installation Model 3110
Teledyne Analytical Instruments 10
2.3 Sensor Installation
The Model 3110 can accept either a percent or trace analysis
sensor. The procedure is similar for either sensor; however, a trace
sensor requires that the instrument lines be immediately purged with
zero gas after installing the cell.
2.3.1 Installing a 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.
2.3.2 Installing a Trace Sensor
Prior to installing the trace sensor, make sure the analyzer is ready
to purge with zero gas. Connect the vent line to the analyzer then
connect the zero gas line to the sample in port. Set the zero gas flow rate
to between 0.2 and 2.5 SCFH.
Prior to using any bottled gas for calibration or purge, it is good
practice to bleed the regulator and sample line to remove any traces of
trapped air. See Section 2.4.3 Bleeding the Regulator and Purging the
Gas Line.
Once the vent and zero gas lines are attached and the lines are
properly purged, proceed to install the trace sensor as follows:
1. Remove the cell holder cap from the bottom of the
instrument.
2. Remove the outer packaging from the sensor.
3. While the sensor is still in its packaging, grip the shorting
plug through the bag and remove it from the sensor.
4. Remove the packaging and rapidly place the sensor on the
top of the cell holder cap with the concentric gold rings
facing up.