6
Start Up Guide
2.2.1
Understanding the Main Screen
The main screen is displayed after startup. The middle portion of the main
screen is a real-time display of power measured in last used units, and the
lower half of the main screen is a row of four labels for actions that the keys
below them will activate. The top of this screen has the channel settings for
the focus channel and a smaller reading for the non-focus channel (B in the
figure). Note that the screen will display “Saturated” message either when the
amount of power surpasses the detector saturation specification, or when the
detector spot size and/or detector saturation specifications are missing in the
calibration module.
When an annunciator label is visible, its function is enabled. If the
annunciator appears on the display as an unlabeled key, the function it
represents is currently disabled. Annunciators loosely correspond to keypad
keys, which are used either alone or in combination with the navigation and
selection keys to control annunciator functions.
2.3
Rear Panel Layout
2.3.1
Elements That Vary by Model (on back panel)
Single-channel power meters have the processing electronics installed on
CH A, while dual-channel power meters have both CH A and CH B installed.
Input Connectors
The input connectors are on the rear panel. 1936-R and 2936-R power meter
models support input from external detectors through DB15 detector
connectors. Input channels on dual-channel power meters are labeled “CH A”
and “CH B”.
A Trigger input offers the possibility of synchronizing the power meter
measurements with external events.
Output Connectors
Power meters in the 1936-R/2936-R series support one analog output for each
channel. Analog output enables direct monitoring of a detector through an
oscilloscope or voltmeter.
On the rear panel there are also trigger outputs, one for each channel. The
user can use these outputs to synchronize external equipment with events
related to the power meter measurements.
2.3.2 Panel
Layout
The rear panel is a brushed aluminum plate with input and output connectors
for the following cable types:
15-Pin D-Sub Optical Detector Input, Channel A (1936-R/2936-R)
BNC Analog Output, Channel A (1936-R/2936-R)
BNC Trigger Output, Channel A (1936-R/2936-R)
15-Pin D-Sub Optical Detector Input, Channel B (2936-R)
