Data Collection Techniques - EIT UV Power Puck II User Manual

Data Collection Techniques

Collect the data in a consistent manner for consistent results. The following techniques will help you to get better
data with the Power Puck II or UviCure Plus II.
1. Match the Instrument Response to the source
•
The Power Puck II and UviCure Plus II bands (UVA, UVB, UVC and UVV) were designed and
optimized for mercury based sources
•
Your will get numbers on the instruments when they are used on a LED but chances are the numbers
will be under or over reported and vary source-to-source and instrument-to-instrument
2. Match the Dynamic Range of the instrument to the source
•
The Power Puck II and UviCure Plus II are available in three dynamic ranges
•
The ranges below are based on the irradiance (intensity) of the source, not the number of Joules that
will be collected
•
Suggested Operating Ranges for Power Puck II and UviCure Plus II instruments
•
Units will "turn on" (Start Threshold) at a much lower value than the Suggested Operating Range
values
•
Using an instrument outside of the Suggested Operating Ranges can lead to variations in the readings
3. Follow EIT Optics Cleaning Guidelines
•
Your Power Puck II or UviCure Plus II is an electro-optical instrument designed to measure UV in an
harsh environment
•
Follow the Guidelines in Appendix A of this User's Guide for proper cleaning techniques
•
The Guidelines as well as an instructional video on proper cleaning techniques are posted on our
website at:
4. Use Consistent Data Collection Techniques
•
For best results, place the instrument in the same location with
the optics in the same orientation
•
A small index mark on UV System allows the user to align the
optics in the same location and orientation each time on the
conveyor
•
On wide arc based systems, consider taking multiple readings
(left-middle-right) across the width of the conveyor
5. Evaluate your UV System Stability
•
Allow your system to warm up and stabilize per the
recommendations of the manufacturer.
•
Avoid Human Error
10 Watt Standard (High- H) Range:
o
UVA, UVB, UVV - 100mW/cm² to 10W/cm²
UVC - 10mW/cm² to 1W/cm²
1 Watt Mid (M) Range:
o
UVA, UVB, UVV -10mW/cm
UVC: 1mW/cm
100 milliWatt Low (L) Range:
o
UVA, UVB, UVV - 1mW/cm² to 100mW/cm²
UVC - 1mw/cm
If the unit is used well below the Suggested Operating Range, there can be variations in the
o
Joules, especially on long runs
If you try to use an instrument on a source well above the Suggested Operating Range, you
o
may wind up 'maxing' out the unit on each run
https://www.eit.com/products/care-and-cleaning
Double check and confirm the applied power and
o
speed controller settings before taking a reading
Applied power and speed controller settings are not always linear and can vary widely
o
2
to 1W/cm
2 to100mW /cm 2
2 2
to 100mW/cm
EIT Part Number P/N IM-0111 Rev A Issued April 2019
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