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

To troubleshoot a modem connection first disconnect the RS-232 cable from the Analyzer and verify (use a DVM) that you are getting a signal on Pin 2 of the RS232 port on the Analyzer. The signal will be between -5V and -15V with respect to signal ground (pin 5). If not, there is a problem with the CPU board or the cable. This is the transmit (TD) signal out of the Analyzer. This should then be connected to TD input on the modem, normally Pin 2. If the Analyzer is equipped with a DTE/DCE switch, you may need to change its setting so the signal is on Pin 2.

Second: Go to the cable connected to the modem/terminal and verify (use a DVM) that you are getting a -5V to -15V signal on Pin 3 of the cable. This pin should be connected to Pin 3 of the Teledyne API Analyzer.

Third: (for modems) Check that the voltage level on Pin 8 of the Analyzer is between +5V and +15V. This pin should be connected (through the cable) to Pin 4 of the modem.

Now set the baud rate of the Analyzer to the speed required by the modem and it should work. If you are still experiencing problems, a cable adapter may be needed. Please contact the factory for assistance.

9.3.2.2 RS-232 Diagnostic Procedures

There are several features of the M200AU to make connecting to RS-232 and diagnosing RS- 232 faults easier.

There are two LED's on the rear panel Connector Board which are connected to pin 2 and 3 of the DB-9 connector on the board. If the switch is in the DCE position (default) the red LED is connected to pin 3 of the DB-9 connector. When data is transmitted by the M200AU the red LED will flicker, indicating data present on this line. When the M200AU is running, the LED will normally be ON, indicating logic low. A one second burst of data can be transmitted over the port by a command in the DIAGNOSTIC menu. Press SETUP-MORE-DIAG, then scroll to RS232 OUTPUT. Each time you press ENTR the instrument transmits a 1 sec burst of lower case "w"'s.

The green LED is connected to pin 2, if the switch is in the default DCE position. This is the pin on which the M200AU receives data. The LED is ON if an outside device is connected. This LED gets its power from the outside device. When data is being transmitted by the outside device to the M200AU this LED will flicker.

When you are attempting to configure the RS-232 port, if either of the LED's go out when the cable is connected, that generally means that there is a grounding problem. Switching the DCE- DTE switch should fix the problem. See the schematic and assembly drawings in the Appendix.

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Teledyne 200AU instruction manual 2.2 RS-232 Diagnostic Procedures
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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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