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Technical Data Stand-alone mode
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Spectrometer
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All AvaSpec-USB2 platform
spectrometers |
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Power consumption
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5-12 VDC, 155 mA |
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Measurement speed
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2 ms (spectrometer and
function dependent) |
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Analog in |
2 channel, 0-5 VDC, 10-bit |
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Digital In |
3 Digital in (TTL level)
1 External hardware Trigger
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Analog out
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2 channel, 0-5VDC, 8-bit
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Digital out
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10 programmable Digital out
TTL level, 0 or 5VDC, max 10 mA
1 external strobe digital
out, 1 laser trigger digital out |
All AvaSpec
spectrometers with USB2 platform can work in stand-alone mode. The stand-alone
mode was developed for process control applications, in which the spectrometer
should output analog or digital signals, that can be directly coupled to
Programmable Logical Controlers (PLC) in a process Control environment.
In order to get the desired stand-alone functionality of a spectrometer it is
important to define functions, in which the parameters that need to be
controlled can be measured.
These functions can be defined as (max. 8) History Channel Functions and the
output values as 8 digital TTL-functions for which thresholds can be set using
the AvaSoft-PROC process control software (see below). Also 2 functions can be
used to output an 8-bit analog value in the 0-5V Voltage range.
After a successful implementation in a PC connected spectrometer, Avantes can be
contacted to implement the desired functions into the firmware on-board of the
USB2 platform spectrometer. Since most functionality is custom-specific, please
contact our technical sales-department for more information on this.
Optionally an on-board SDcard can be installed to save spectra on the card and
download later to the PC.
Avasoft Process Control Software
The Process Control
Application software allows the user to define minimum and maximum threshold
values for the 8 time series functions. The time series functions can be the
user defined functions, integrals or peak values (intensity, wavelength) as
defined in the History application or, in combination with AvaSoft-CHEM, AvaSoft-COL
and/or AvaSoft-IRRAD, the chemometrics, color and/or irradiance parameters.
With the AvaSpec spectrometers, 8 on-board TTL-output signals are available that
will respond to exceeding the user defined output range for the 8 time series
functions. These TTL’s can e.g. be connected directly to PLC´s in an industrial
environment.
New in combination with the AvaSpec-USB2 platform is the option to convert 2 of
the History Channel Functions outputs to analog output signals (0-5V).
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