Teledyne API Model 200AU NOX Analyzer Instruction Manual, 02293, Rev. F

Table 9-1: Test Functions

Test Function

Factory Set-Up

Comment

RANGE

500 PPB

This is the Range of the instrument. In standard configuration all 3

 

 

outputs have the same range.

 

 

Independent range option allows different ranges for each output.

 

 

When enabled, there will be 3 range values displayed.

 

 

Auto range option allows 2 different ranges for all outputs, and

 

 

will automatically switch to the other range dynamically as

 

 

concentration values require. The TEST values will show the

 

 

range the instrument is currently operating in, and will

 

 

dynamically display the alternate range as the range changes

 

 

occur.

 

 

 

STABIL

Check value in

The instrument stability is the Std. Deviation of the last 50 min of

 

Final Test Values

NOx conc data. It is computed for the NOx channel only. The noise

 

Table 2-1

value only becomes meaningful if sampling a constant

 

 

concentration for more than 50 minutes. The noise value should be

 

 

compared to the value observed in the factory check-out.

 

 

Faults that cause high noise values are:

 

 

1. Gas leaks

 

 

2. Light leak

 

 

3. Faulty HVPS

 

 

4. Defective Preamp board

 

 

5. Outgassing Moly converter

 

 

6. PMT recently exposed to room light

 

 

7. Dirty/contaminated reaction cell

 

 

8. Mis-calibrated (slope - offset outside of limits)

 

 

 

SAMPLE FLW

1000 cc/min

This is the instrument flow. It is computed using the up stream and

 

± 100

down stream pressures across the sample flow orifice. This

 

 

method can give a false flow indication if the orifice is plugged

 

 

and the sample pump is creating a pressure drop. It should be

 

 

taken into account when diagnosing instrument faults.

 

 

- A rapid method of determining if the orifice is plugged is to

 

 

disconnect the sample and ozone tubes from the reaction cell, then

 

 

briefly put your finger over the fittings on the cell. You should

 

 

feel the vacuum build up. Also note the difference between the

 

 

high sample flow and the low ozone flow rate.

 

 

- Another reliable method is to attach a rotameter or soap bubble

 

 

flowmeter to the fittings to measure the flows.

 

 

Flow rate will change ± a few cc/min due to changes in ambient

 

 

air pressure such as cycling of air conditioning, or passing weather

 

 

fronts. Changing altitude changes the ambient air pressure and

 

 

therefore the sample flowrate. This effect is about 15-20 cc/min

 

 

per 1000 feet of altitude change. If required, the output of the

 

 

instrument can be compensated for pressure. See Section 5.3.9,

 

 

Table 9-5.

 

 

 

(table continued)

9-4

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Teledyne 200AU instruction manual Test Functions, Test Function Factory Set-Up Comment

200AU specifications

The Teledyne 200AU is a cutting-edge analytical instrument designed primarily for trace and ultra-trace analysis of elements in various liquid samples. Renowned for its reliability and precision, this inductively coupled plasma mass spectrometer (ICP-MS) is widely utilized in environmental monitoring, food safety, clinical diagnostics, and geochemical research.

One of the distinguishing features of the Teledyne 200AU is its exceptional sensitivity, allowing for the detection of elements at concentrations as low as parts per trillion (ppt). This sensitivity is crucial for applications where even minute traces of contaminants can have significant implications. The instrument also boasts a wide dynamic range, accommodating high-concentration samples without compromising accuracy.

The Teledyne 200AU incorporates advanced technologies that enhance its analytical capabilities. At the core of its design is a robust ICP source, which ensures optimal ionization efficiency. The instrument also features a high-resolution quadrupole mass analyzer, which enables precise separation and identification of ions based on their mass-to-charge ratio. This feature is essential for distinguishing between isotopes and analyzing complex mixtures.

Another notable characteristic of the Teledyne 200AU is its user-friendly interface, which simplifies the operation and data management processes. The software is intuitive, offering sophisticated data processing algorithms that streamline analysis. Users can easily access real-time data visualization, facilitating timely decision-making based on analytical results.

The instrument is built with durability in mind, featuring a compact design that allows for easy integration into various laboratory environments. The Teledyne 200AU is also equipped with state-of-the-art safety features, including enhanced cooling systems and automated shutdown protocols to protect both the instrument and the user.

Moreover, the Teledyne 200AU supports a variety of sample introduction methods, including nebulization and laser ablation, providing flexibility to accommodate different types of samples and experimental needs. Its multi-element capability further enhances its versatility, allowing simultaneous detection of multiple elements in a single analysis.

In summary, the Teledyne 200AU stands out as a premier instrument in the field of mass spectrometry. Its combination of high sensitivity, advanced technology, user-friendly features, and robust design makes it an invaluable tool for scientists and researchers seeking precise elemental analysis across various disciplines.