Operation; Startup Of Oxygen Analyzer; Preliminary; Meter Zeroing - Teledyne 9700 Instruction Manual

Flue gas analysis system

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Flue Gas Analysis System

4.1

Before applying power to the instrument, TBE/AI suggests that the

electrical wiring installation be checked against the interconnection dia-

gram (see Figure 6), especially if the installation has been made by person-

nel other than those responsible for startup and operation. In many in-

stances, proper attention to this preliminary check will prevent severe

damage due to accidental wiring transpositions.

4.1.2

Before turning power to the analyzer on, (RANGE switch in any

position but OFF), the mechanical zero of the meter should be checked and

adjusted, if necessary. The meter indicating pointer should be in precise

coincidence with the scale zero mark. Use the mirror to eliminate parallax;

adjust the screw on the face of the meter to zero the pointer. Zeroing of the

meter is important to achieve maximum accuracy of the meter, and even

more important if remote indicating and/or recording equipment are in-

volved in the system. An offset zero on the meter will result in a tracking

error between the two devices which would be significant if the meter is

used to calibrate the analyzer (normal procedure).

CAUTION:

Operation

Never attempt to make this adjustment with the power on.

TELEDYNE BROWN ENGINEERING

Analytical Instruments

Operation 4

4-1

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