Gentec-EO MAESTRO - Manual (Page 31)

MAESTRO User’s Manual Revision 8.1 30
Fig. 2-15 The Measure mode selection menu window for a thermopile detector head
Depending on the type of detector head connected to the MAESTRO, you will have different choices for
the measure modes.
For thermopiles, you have the following measure modes:

Power in Watts (default);

Single Shot Energy in Joules
7
: (Energy mode/ calorimeter mode);

Moving Average in Watts.
7
This function allows you to measure the energy contained in a laser pulse with a Gentec-EO power
detector head. This mode of operation gives access to the same options as in the case of an energy
pyroelectric joulemeter. The only restriction is that the time delay between pulses,
Delay
Rep. Rate







1
, must be compatible with the detector specification. (Please refer to the user
manual for the specific power detector you are using.)
You must select the range manually because the autoscale is deactivated when you select Energy
Mode.
Keep in mind that the power detectors are optimized to sustain high average power, not high peak
energy. Always keep the energy density below the maximum energy density quoted in the manual for
that specific detector.
The energy mode is always available for power detectors with a typical sensitivity value. A precision of
±3% in the pulse energy measurement can be achieved if the power detector head is specifically
calibrated in energy mode. Please contact your local Gentec-EO distributor or nearest Gentec-EO office
for more information on obtaining a pulse energy measurement calibration.