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Teledyne 316RA / RB / RAD / RBD - Oxygen analyzers User Manual

Page 13

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TELEDYNE ANALYTICAL INSTRUMENTS

9

Trace Oxygen Analyzer Model 316RA/RB/RAD/RBD

Meter Zero

Before turning the power on, check the mechanical zero of the meter

and adjust, if necessary. Do not adjust the meter with the power on. The
meter pointer should be aligned with the zero mark of the scale. Adjust the
screw on the face of the meter until the pointer shows exactly zero. This is
important to achieve full advantage of the meter’s 0.5% accuracy. Digital
meters require no mechanical zero.

Electrical Start-Up

Place the range switch in the X-100 scale (0-1000 ppm), and turn on

the power. The meter will move upscale and come to equilibrium at a point
that represents the concentration of oxygen in the sampling system between
the throttle valve and shutoff valve. If the meter reads off scale, refer to the
Troubleshooting section.

Sample System Start-Up

After establishing power, open the sample gas valve to the analyzer,

and start sample flow as follows:

1. Open the cell shutoff valve.

2. Open the throttle valve and set the flowmeter at 2.0 SCFH.