entegris InVue CR288, Руководство пользователя

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INVUE CR288 CONCENTRATION MONITOR
17 Installation and Use Manual | Entegris, Inc.
Number of Rolling Averages
Use Rolling averages to increase the amount of
averaging that the sensor performs on the data.
This reduces measurement noise but increases
DDU response time.
NOTE: Collecting a point requires approximately 1.3
seconds; therefore 10 points add approximately thirteen
seconds to the response time.
Rolling averages can be applied to the following data
to be observed on the Data Graph Tab:
• Concentration ?
• Temperature
• IoR@20
• PixelPos
Rolling averages cannot be applied to the IoR.
Change Rolling Averages
1. Click on the Rolling Averages field.
2. Enter a number where the number is greater than
zero and less than 100 (0<=n<=100) to specify the
number of points to maintain in the rolling average.
3. Press Save Memory .
Temperature Offset
Calibrates the fluid temperature sensor to an
external reference temperature.
1. Press Temperature Offset .
2. Enter a value.
This value is added to all of the fluid temperature
readings for the selected sensor.
Number of Error Readings to Ignore
Number of errors or out of bounds signals that
the sensor ignores before the set alarms trigger.
See
Setting Alarms .
Pixel for Light Adjustment
Edit to adjust the left and right-most pixel position
used for the TIR curve on the Diagnostics Tab. It also
adjusts the light intensity for proper sensor operation.
Pixel for Algorithm
Defines the range of pixel positions the software
algorithm uses to determine the critical angle and
associated IoR.
Fluid Temperature Compensation Coefficient
Enter a value or see Temperature Compensation
Wizard.
NOTE: You can also set this value using the Adjust
Temperature Compensation button on the Data Graph
tab. See
Data Graph Tab .
Save Factory-Loaded Sensor Information
See Save Factory Initialization Settings to a File .
Restoring Factory-Loaded Information
1. Press Load Complete Sensor Info from File .
2. Select a file.
NOTE: Do not use a file from one sensor to restore
a different sensor. The data over-writes the sensor
serial number.
CHEMICAL CALIBRATION TAB
Chemical calibration tells the sensor the characteris-
tics of the chemical to be monitored. The relationship
between concentration and index of refraction is near
linear for most chemicals at a constant temperature
and can be defined with only two points.
However, some chemicals do have a non-linear
relationship making it necessary to enter additional
data points. Higher system accuracy requirements
can also require more data points. The 288-connect
software accepts up to ten data points to compensate
for non-linear relationships, allowing for polynomial
fits.