Teledyne 200EH/EM

Operating Instructions Teledyne API - Model 200EH/EM Operation Manual

6.7.2. DEFAULT IDAS CHANNELS

The M200EH/EM is configured with a basic iDAS configuration, which is enabled by default. New data channels

are also enabled by default but each channel may be turned off for later or occasional use. Note that iDAS

operation is suspended while its configuration is edited through the front panel. To prevent such data loss, it is

recommended to use the APICOM graphical user interface for iDAS changes.

A set of default data channels has been included in the analyzer’s software for logging nitrogen oxides

concentrations, calibration and predictive diagnostic data. They are:

 CONC: Samples NOX, NO and NO2 concentration at one minute intervals and stores an average every

hour with a time and date stamp along with the number of (1-minute) samples within each average(for

statistical evaluation). Readings during calibration and calibration hold off are not included in the data.

By default, the last 800 hourly averages are stored.

 CALDAT: Every time a zero or span calibration is performed CALDAT logs concentration, slope and

offset values for NOX and NO with a time and date stamp. The NOX stability (to evaluate calibration

stability) as well as the converter efficiency (for reference) are also stored. This data channel will store

data from the last 200 calibrations and can be used to document analyzer calibration. The slope and

offset data can be used to detect trends in (instrument response.

 CALCHECK: This channel logs concentrations and the stability each time a zero or span check (not

calibration) is finished. This allows the user to track the quality of zero and span responses over time

and assist in evaluating the quality of zero and span gases and the analyzer’s noise specifications. The

last 200 data points are retained.

 DIAG: Daily averages of temperature zones, flow and pressure data as well as some other diagnostic

parameters (HVPS, AZERO). These data are useful for predictive diagnostics and maintenance of the

M200EH/EM. The last 1100 daily averages are stored to cover more than four years of analyzer

performance.

 HIRES: Records one minute, instantaneous data of all active parameters in the M200EH/EM. Short-

term trends as well as signal noise levels can be detected and documented. Readings during calibration

and the calibration hold off period are included in the averages. The last 1500 data points are stored,

which covers a little more than one day of continuous data acquisition. This data channel is disabled by

default but may be turned on when needed such as for trouble-shooting problems with the analyzer.

The default data channels can be used as they are, or they can be customized from the front panel or through

APICOM to fit a specific application. The Teledyne Instruments website contains this default and other sample

iDAS scripts for free download. We recommend that the user backs up any iDAS configuration and its data

before altering it.

NOTE

Teledyne-API recommends downloading and storing existing data and the iDAS

configurations regularly for permanent documentation and future data analys is.

Sending an iDAS configuration to the analyzer through its COM ports will replace the

existing configuration and will delete all stored data.

04521C (DCN5731)