9
Overshoot
Undershoot
Correct
Analog Output Signal
Input Optical Signal
Figure 5 — Detector Time Constant Acceleration Adjustment
Note
If you are operating the Model 1815-C with a High-Power detector and
with the signal acceleration turned off, then no adjustment to the
ACCEL ADJ is required.
Note
Acceleration can only be used with High-Power (thermopile) detec-
tors. If acceleration is used with other detectors, erroneous readings
can result.
2.4.6 Analog Output
The Model 1815-C provides a 0 to 2 volt BNC analog output for signal monitor-
ing. The signal reflects actual power measured by being equal to the digital
display value. Thus, if the digital display indicates 1.560, then the analog
output voltage will be 1.560 volts.
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