MKS Ophir Centauri Quick Reference

5 Graphical Displays
5.1 To present measurements on a graduated scale:
1. In Power or Energy mode, tap the Channel Options menu icon and
tap Display Type.
2. In the Display Type dialog, select Bar. The main measurement display
screen returns.
3. To expand the bargraph scale ±5x of the present reading, tap Zoom on
the bottom of the screen. Tap Zoom again to return the bargraph to full
scale.
4. To subtract background and set current reading to zero, tap Offset
along the bottom of the screen. Tap Offset again to cancel.
5.2 To simulate an analog needle:
1. In Power or Energy mode, tap the Channel Options menu icon and
tap Display Type.
2. In the Display Type dialog, select Needle. The main measurement
display screen returns.
3. To expand the needle graph ±5x of the present reading, tap Zoom on
the bottom of the screen. Tap Zoom again to return the needle range
to full scale.
4. To subtract background and set the current reading to zero, tap Offset
along the bottom of the screen. Tap Offset again to cancel.
5. Tap Persistence to keep older measurements on the screen, and to
display the Min and Max values measured. Tap Persistence again to
cancel.
5.3 To graph laser output over time:
This is especially useful for fine-tuning laser power.
1. In Power or Energy mode, tap the Channel Options menu icon and
tap Display Type.
2. In the Display Type dialog, select Line. The main measurement display
screen returns.
3. Zoom and un-zoom the display by stretching and pinching the graph
with two fingers, either top to bottom or side to side.
4. Pan the display by moving your finger up and down on the graph.
5. Double-tap the graph to reset the zoom and pan.
6. Tap Autoscale Y Axis along the bottom of the screen to scale the
axis between the minimum and maximum readings.
7. Tap Reset to clear the Min/Max tracking and to restart the graph.
5.4 To display real-time statistics:
1. In Power or Energy mode, tap the Channel Options menu icon and
tap Display Type.
2. In the Display Type dialog, select Statistics. The main measurement
display screen returns.
3. Displayed are Maximum, Minimum, Average, Standard Deviation, Total
Readings, and Number Overrange.
4. To subtract background and set current reading to zero, tap Offset at
the bottom of the screen. Tap Offset again to cancel.
5. Tap Reset across the top of the screen to clear the statistics.
5.5 For pass/fail tracking:
1. In Power or Energy mode, tap the Channel Options menu icon and
tap Display Type.
2. In the Display Type dialog, select Pass/Fail. The main measurement
display screen returns.
3. Tap Upper and Lower to set tolerance limits. If reading is out of
range, an appropriate warning is displayed on the screen.
6 Functions
6.1 To apply a fixed offset to measurements:
This sets the value to subtract from subsequent measurements.
1. Tap the Channel Options menu icon and then tap Functions.
2. On the Functions screen, tap the edit icon for Fixed Offset.
3. In the Set Fixed Offset dialog, either type in a fixed offset or select the
present measurement as a fixed offset. Tap Apply.
6.2 To apply a scale factor to measurements:
This sets the value by which to multiply subsequent measurements.
This is useful when working with beam splitters.
1. Tap the Channel Options menu icon and then tap Functions.
2. On the Functions screen, tap the edit icon for Scale Factor.
3. In the Set Scale Factor dialog, type in a scale factor and tap Apply.
6.3 To compare against a reference measurement:
Define a baseline against which to compare subsequent measurements.
1. Tap the Channel Options menu icon and then tap Functions.
2. On the Functions screen, tap the edit icon for Normalize.
3. In the Set Normalize dialog, either type in a baseline value or select the
present measurement as a baseline value. Tap Apply.
6.4 To display as power/energy density:
1. Tap the Channel Options menu icon and then tap Functions.
2. On the Functions screen, tap the edit icon for Density.
3. In the Set Density Parameters dialog, select the beam shape and then
enter the size. Tap Apply.
Measurements are shown as W/cm².
Ophir Optronics Solutions LTD.
Science-Based Industrial Park P.O.B. 45021,
Jerusalem 9145001, Israel
Phone +972-2-5484444
https://www.ophiropt.com/photonics
rev 1.08-2/17.Mar.19/ib Ophir P/N 1J06072
Centauri
Quick Reference
1 Getting Started
1.1 Introduction
The Centauri is equipped with a 7" full color touch screen.
Sensor parameters can be updated with a few taps on the
screen.
In addition, the Channel Options menu, reached by tapping
the three-dot icon ( ), enables access to
additional features.
The Settings menu can be accessed by tapping the cog
icon ( ).
1.2 To connect a single sensor to the Centauri meter:
Insert the 15 pin D type connector of the measuring sensor
cable into the socket marked Sensor Input on the
Channel A section of the upper panel of the meter.
1.3 To switch the Centauri on:
Briefly press the Power button on the top of the instrument
and wait a few seconds for the measurement display
screen to appear.
1.4 To switch the Centauri off:
Press the Power button for a few seconds until it turns
off.
1.5 To set general instrument settings:
1. Disconnect the sensor. The Settings screen is
displayed.
2. Tap Instrument Settings.
The Instrument Settings screen is displayed. On this
screen, set the following:
• Line Frequency: Set to 50Hz or 60Hz, depending on
the electrical power grid in your area.
• Date and Time: Tap the current date to update the
date. In the dialog, roll the month/date/year to the
desired date. Tap OK to exit. Tap the current time to
update time. In the dialog, roll the hour and minutes to
set time according to the 24 hour clock. Tap OK to exit.