Teledyne 6200E - Sulfides Analyzer - Manual (Page 122)

Operating Instructions Model 6200E Instruction Manual
122 M6200E Rev: A1
Table 6-21: iDAS Data Parameter Functions
FUNCTION EFFECT
PARAMETER Instrument-specific parameter name.
SAMPLE MODE INST: Records instantaneous reading.
AVG: Records average reading during reporting interval.
MIN: Records minimum (instantaneous) reading during reporting interval.
MAX: Records maximum (instantaneous) reading during reporting interval.
PRECISION Decimal precision of parameter value(0-4).
STORE NUM.
SAMPLES
OFF: stores only the average (default).
ON: stores the average and the number of samples in each average for a
parameter. This property is only useful when the
AVG sample mode is used. Note
that the number of samples is the same for all parameters in one channel and
needs to be specified only for one of the parameters in that channel.
Users can specify up to 50 parameters per data channel (the M6200E provides about 30
parameters). However, the number of parameters and channels is ultimately limited by available
memory.
6.11.1.3. iDAS Triggering Events
Triggering events define when and how the iDAS records a measurement of any given data
channel. Triggering events are firmware-specific and are listed in Appendix A-5. The most common
triggering events are:
• ATIMER: Sampling at regular intervals specified by an automatic timer. Most
trending information is usually stored at such regular intervals, which can be
instantaneous or averaged.
• EXITZR, EXITSP, SLPCHG (exit zero, exit span, slope change): Sampling at the
end of (irregularly occurring) calibrations or when the response slope changes. These
triggering events create instantaneous data points, e.g., for the new slope and offset
(concentration response) values at the end of a calibration. Zero and slope values
are valuable to monitor response drift and to document when the instrument was
calibrated.
• WARNINGS: Some data may be useful when stored if one of several warning
messages appears. This is helpful for trouble-shooting by monitoring when a
particular warning occurred.
6.11.2. Default iDAS Channels
A set of default Data Channels has been included in the analyzer’s software for logging H
2
S
concentration and certain predictive diagnostic data. These default channels include but are not
limited to:
CONC: Samples H
2
S concentration at one minute intervals and stores an average every hour with
a time and date stamp. Readings during calibration and calibration hold off are not included in the
data. By default, the last 800 hourly averages are stored.