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9 data files and format> 9-3 – Yokogawa Extractive Oxygen Gas Analyzer TDLS220 User Manual

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<9 DATA FILES AND FORMAT> 9-3

IM 11Y01B02-01E-A 4th Edition September 11, 2012-00

calibr

.bak

Calibration History Back-Up

A back-up of historical log of analyzer

calibrations

Calibration History - When the calibr.his file exceeds 100KB size

the contents is saved to this .bak file and the .his file is emptied.

This .bak file is in the form of ASCII data files that can be opened

with Microsoft “Notepad” as simple .txt file formats. The content

can then be copied and pasted into Microsoft Excel spread.

Each Calibration and/or Validation event is logged with the date

(MM-DD-YYYY) and time that it occurred, the Mode (Calibration

or Validation), the specific type (Transmission Calibration, Zero

Calibration, etc.) and the ‘K’ (constant) factor used for the event

Example:

11-14-2007 14:11:19 span_calibrate 612814.89 9250.84

152665.88

11-14-2007 14:50:16 transmission_cal 14.95

calibr

.pik

Calibration Pick List - Factory

Use Only

FACTORY PERSONNEL ONLY

S

.dat

Chemometric Model File

Parent spectra for chemometric model used only for specialized

applications that utilize the TruePeak CLS measurement

capability.

span00

.spe

Span Calibration Spectra

Absorption Spectrum and coefficients

at time of calibration

This file is essential to the analyzer calibration - if this file does

not exist or is corrupted, modified or otherwise tampered with

then the analyzer calibration is invalid. It contains essential

information relating to the Span Calibration of the analyzer.

span01

to

span10

.spe

Historical Span Calibration

Spectra

Previous Absorption Spectrum

and coefficients at time of previous

calibrations

span01 through span09 are previous files with span01 being the

most recent. The most recent previous span01 can be restored

in the analyzer as ‘Previous Calibration’. The factory calibration

which can also be restored in the analyzer is named span10.

system

.cfg

System Configuration

All essential analyzer & installation

specific parameters required by the

analyzer for the given application &

installation

This file is essential to the analyzer - if this file does not exist

or is corrupted, modified or otherwise tampered with then

the analyzer cannot function. It contains analyzer specific

parameters relating to every detail of the measurement,

calibrations, compensation factors, I/O configurations, Valve

control configurations, signal processing, etc. This file is used by

FACTORY PERSONNEL ONLY to evaluate if the configuration is

appropriate for the analyzers intended use.

system

.his

System History

A historical log of configuration

changes

System Configuration History - in the form of ASCII data files

that can be opened with Microsoft “Notepad” as simple .txt

file formats. The content can then be copied and pasted into

Microsoft Excel spread. Each configuration change is logged

with the date (MM-DD-YYYY) and time that it occurred, the

parameter (e.g. opl) and the new value. Also, whenever the

analyzer is started-up or shut-down the ‘TruePeak Open/Close”

parameter will be logged.

Example:

11-20-2006 08:13:10 opl(inch) 39.96 43.31

11-20-2006 08:13:26 temperature(F) 509.0 86.0

11-20-2006 08:13:40 pressure(psi) 14.50 14.50

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