Gentec-EO MAESTRO - Manual (Page 30)

MAESTRO User’s Manual Revision 8.1 29
Fig. 2-14 The Range selection menu window
To change the range, simply touch a range value from the appropriate range. When the range is set,
touch the OK button to save the changes, or touch the cancel button to ignore the changes.
When in a manually selected range, you should always use the next higher range to the measured value,
for maximum precision.
Special care must be taken in the case of widely varying pulse energy to ensure that every pulse is
detected. Contrary to the case of a power measurement where the auto mode adjusts continuously to the
measured value, the auto mode in energy mode bases its range selection on the energy of the previous
pulse. A pulse with energy less than 2% of the current scale will not be detected. Always set the scale to
the best one available. To be sure to measure lower energies, set the scale manually to the lowest level
and set the autoscale, the MAESTRO will autoscale to the best scale. In this case, the pulses that
saturated the scale while the autoscale was searching for the best scale will be invalid.
2.4.2.3 Measure Mode
Depending on the type of detector head connected on the MAESTRO, you can choose different measure
modes. The following figure shows an example of the measure mode menu window when a thermopile
detector head is connected to the MAESTRO. Once the measure mode is set, touch the OK button
to save changes, or touch the cancel button to ignore the changes.