PN 10795T 18
14. Time Out
Note: You must save all settings by pressing and holding the OFF/CANCEL button until the display
blanks. If the H410 is turned off, by using the ON/OFF slide switch, before settings are saved they will
be lost.
Note: The time out default setting is 10 minutes.
The time out feature conserves battery power by putting the H410 to sleep if there is no input from a
detector after a selected period of time. To awaken the H410 once it is in the sleep mode press the
ON/SELECT button.
To enter into the time out mode:
A. Press the MODE button to start a menu cycle of J, AVG J, W, CAL and tO.
B. Press the ON/SELECT button when the tO annunciator appears. The current time out setting will
be displayed and SET will flash.
E. Press the RANGE (count up) and MODE (count down) buttons to change the desired number of
minutes, from 1 to 9999.
D. Press the ON/SELECT button. The time out setting is now active and the power meter will return
to the last operational state.
E. Press and hold the OFF/CANCEL until the display blanks to save the setting.
E. Press the ON/SELECT button to turn the H410 back on.
Correcting Pyroelectric Detector Operating Parameters for Use at Different
Wavelengths
Note: Due to variability in the manufacturing process the absorption characteristics of the HD and P
model detectors can vary in the UV region (190 to 400nm). Scientech recommends optical calibration at
266nm if the detector is to be used in the UV region instead of relying on an absorption rate in the chart
at the end of this manual.
All pyroelectric detectors are calibrated at a specific wavelength and the detector’s output sensitivity is
derived for that wavelength. The output sensitivity and calibration wavelength is recorded in the
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