PMS-300 PMS-400 800 MHz Gated Photon Counters / Multiscalers

Step motor actions can be defined at the start of the measurement, after each curve point, when the
recording reaches the last curve point, when the accumulation for one measurement is finished and
after a number of repetitions of the measurement. In the figure above device 1 runs to the start
position at the beginning of the measurement, makes one step up after each curve point and runs
back to the start position at the end of the recording of the curve. If 'Accumulate' is set this sequence
is repeated for the specified number of accumulations, and the results are accumulated in the
memory. If 'Device 1' drives a monochromator the result is a spectrum of the investigated light
signal.
Display Parameters
The display parameter menu is shown in the figure below.
Scale Y
Under 'Scale Y' you can switch between a linear or logarithmic display of the curves. Furthermore,
the curve window can be set to any fraction of the available count range.
Linear / Logarithmic: Linear or logarithmic Y-scale
Max Count: Upper limit of the display range for linear and logarithmic scale
Baseline: Lower limit of the display range for linear scale
Log Baseline: Lower limit of the display range for logarithmic scale
All limit values are given in 'counts'.
Trace
Bkgcolor: Background colour of the curve window.
Style: Display style of the curves. The styles 'Line', 'Points Only' and 'Connected Points' are
available.
Point Style: Style of the curve points for ‘Points Only’ and ‘Connected Points’
Point Freq: At values >1 each n-th point is displayed only. 'Point Freq' has no influence if 'Line'
is selected.
Grid
Visible: Toggles the grid on and off.
Color: Sets the grid colour.
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