4.3 Analog Output
4.2.8 Tune Graph and Pulse Graph Display
The graph functions can be accessed by navigating to the Meas View X and then
choosing the Statistics button. The sampling will start and stop manually after
pressing the START button. The values will be stored to the SD memory card on
the chosen file number.
The power graph function supports auto-ranging. Measurement data during ranging
will be suppressed in the log data.
4.3 Analog Output
The analog output provides the amplified photo-diode current or the amplified thermal
or pyroelectric sensor voltage.
With thermal sensors the analog output shows the direct amplified and accelerated
voltage response from the sensor. With pyroelectric sensors the signal from the
analog output is the pulse response from the sensor prior to the peak detection
circuit.
The signals from the analog outputs are not wavelength and zero corrected.
The analog output voltage is range dependent and can be calculated to:
U
Analog Out
[V] = 2V / full scale range value [V, A] x measurement value [V, A]
The analog output voltage can go from -0.3V to +2.3V.
4.4 Tuning Sound
For power measurements in the numeric and needle display a sound support can be
added to adjust to the maximum power level without the need of watching the
display. The tone will increase its repetition frequency with the height of the power
level until a local maximum is reached.
To switch on the tuning sound navigate and confirm the TUNE ; button. The
sound shuts off by pressing any of the keys.
4.5 SD Memory Card
Measurement data can be stored on a SD memory card. The memory card is located
in the instrument bottom and can be removed / inserted with a push pull mechanism.
The data logging function is available in the statistics and graphical screen. Up to 99
files can be selected to store data, old data in the selected file will be overwritten.
When a statistics or a graph is running, the data automatically will be written to the
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