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

In addition there is a thermocouple amplifier for the Moly converter.

Thermistor Temperature Amplifier Adjustments

If the temperature readouts are in error:

1.Locate the Box temp thermistor on the board and place a calibrated thermometer near the thermistor.

2.Select the BOX TEMP - TEST function on the front panel.

3.Adjust R34 until the front panel readout matches the thermometer readout. This will cause all of the readouts to accurately measure their respective temperatures.

Molybdenum Converter Thermocouple Amplifier Adjustments

The molybdenum converter temperature is sensed by a thermocouple. The cold junction compensation and signal conditioning is done on the Temp/Status board.

The buffer amplifier from the thermocouple amplifier to the CPU for the Moly temperature has a gain adjustment. The voltage times 100 at pins 8-9 of U1 is the Moly temperature in degrees C. For example 3.15 VDC at pin 9 of U1 is 315o C. The CPU is programmed to always drive the temp to 315° C, so the voltage at U1 must be used as the absolute reference as to the correct temperature. The temperature will vary ± 3 degrees due to the operation of the temperature control loop in the CPU.

The R6 pot on the Status/Temp board can adjust the temperature. To adjust the molybdenum converter temperature:

1.Select the CONV TEMP - TEST function on the front panel.

2.Wait until the converter is up to temperature, usually 30-45 min after a cold start.

3.Adjust R6 until the voltage at pin 8-9 of U1 is 3.15 VDC. The CONV TEMP - TEST function will then read 315° C.

4.Recheck the temperature 15 min later and re-adjust if necessary.

9.3.4.2 Display Brownout

During low AC line conditions the display can lock up due to insufficient voltage. When low line conditions are approaching, this circuit senses the condition by monitoring the un-regulated +5 VDC in the Power Supply Module. If brownout conditions are met, the DISP_BROWNOUT line is asserted and the CPU sends a hardware RESET command to the display and sends a BRNOUT RESET pulse back to U4. Brownout conditions will be noticed by the display flashing every 8 seconds.

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Teledyne 200AU Thermistor Temperature Amplifier Adjustments, Molybdenum Converter Thermocouple Amplifier Adjustments
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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.
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