Sample Mode; Test Functions - Teledyne 9110AH Instruction Manual

Nitrogen oxides analyzer

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TELEDYNE Model 9110AH NO

5.2 Sample Mode

In any of the following TEST functions, if a value of

TEST functions allow the operator to examine several important operating parameters of the

M9110AH to verify correct Analyzer operation. If faults are discovered, refer to

Troubleshooting Section 9.

Range (RANGE)

This is the Range of the instrument. In single range mode there is one range for all 3 rear panel

analog outputs.

The AutoRange option allows 2 different ranges for each channel, and will automatically switch

to the other range dynamically as concentration values require. By selecting Remote

AutoRange, the range change can be controlled remotely. The TEST values will show the range

the instrument is currently operating in, and will dynamically display range change information

when necessary.

Independent range option allows different ranges for each output. When enabled, there will be

three range values displayed, NO, NO

Each of the range modes Single range, Auto range, and

Signal Stability (STABIL)

The instrument noise is computed by calculating the standard deviation of the last 10 minutes of

concentration data. If NO/ NO

channel. If NO only or NO

noise value only becomes meaningful if sampling a constant concentration for more than 10

minutes. The noise value should be compared to the value observed in the factory check-out.

Analyzer Operator Manual, 01620, Rev. F

NOTE

XXXX is displayed, that indicates an off scale and

therefore meaningless reading.

NOTE

Independent ranges are mutually exclusive.

switching mode is selected, the noise reading is that of the NO

only mode is selected the Noise applies to the mode selected. The

and NO

5-9

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