found in Appendix A-5.

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Advanced Features

Triggering events are firmware-specific and a complete list of Triggers for this model analyzer can be

found in Appendix A-5.

7.1.5.3.Editing iDAS Parameters

Data parameters are types of data that may be measured and stored by the iDAS. For each analyzer model, the list of available data parameters is different, fully defined and not customizable. Appendix A-5 lists firmware specific data parameters for the M300E/EM. iDAS parameters include things like CO concentration measurements, temperatures of the various heaters placed around the analyzer, pressures and flows of the pneumatic subsystem and other diagnostic measurements as well as calibration data such as stability, slope and offset.

Most data parameters have associated measurement units, such as mV, ppb, cm³/min, etc., although some parameters have no units (e.g. SLOPE). With the exception of concentration readings, none of these units of measure can be changed. To change the units of measure for concentration readings, see Section 6.6.4.

Note

iDAS does not keep track of the units (i.e. PPM or PPB) of each concentration value therefore iDAS data files may contain concentrations data recorded in more than one the type of unit if the units of measure was changed during data acquisition.

Each data parameter has user-configurable functions that define how the data are recorded.

 

Table 7-3: iDAS Data Parameter Functions

 

 

FUNCTION

EFFECT

PARAMETER

Instrument-specific parameter name.

SAMPLE MODE

INST: Records instantaneous reading.

 

AVG: Records average reading during reporting interval.

 

SDEV: Records the standard deviation of the data points recorded during the reporting interval.

 

MIN: Records minimum (instantaneous) reading during reporting interval.

 

MAX: Records maximum (instantaneous) reading during reporting interval.

PRECISION

0 to 4: Sets the number of digits to the right decimal point for each record.

 

Example: Setting 4; “399.9865 PPB”

 

Setting 0; “400 PPB”

STORE NUM

OFF: Stores only the average (default).

SAMPLES

ON: Stores the average and the number of samples in used to compute the value of the

 

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 M300E/EM provides about 40 parameters). However, the number of parameters and channels is ultimately limited by available memory.

Data channels can be edited individually from the front panel without affecting other data channels. However, when editing a data channel, such as during adding, deleting or editing parameters, all data for that particular channel will be lost, because the iDAS can store only data of one format (number of parameter columns, etc.) for any given channel. In addition, an iDAS configuration can only be uploaded remotely as an entire set of channels. Hence, remote update of the iDAS will always delete all current channels and stored data.

04288D DCN5752

115

Page 117
Image 117
Teledyne M300EM operation manual Editing iDAS Parameters, found in Appendix A-5, 3:iDAS Data Parameter Functions