neoBLUE
®
mini System User Manual
P/N 051440D
13
9. Measuring the neoBLUE mini Light with a Photometer
This section provides important information about using photometers to measure the light
intensity output of the neoBLUE
mini LED Phototherapy device.
Natus recommends that the neoBLUE mini light intensity output be checked with a photometer per hospital
protocol or at least every six months. In addition, your photometer should be calibrated according to the
manufacturer’s specifications (typically on an annual basis). Checking intensity before each use will
confirm the “dosage” of light being delivered. In addition, by checking the intensity at the center of the
infant and at the infant’s head and feet, you can confirm proper placement of the light.
The intensity of the light source is inversely related to the distance from the source. The neoBLUE mini
LED Phototherapy System can be placed closer to the infant yielding a higher intensity or higher dosage
treatment. To adjust the neoBLUE mini light to the desired intensity when changing the distance, please
refer to the service manual.
The light intensity output of the neoBLUE mini device is measured at Natus prior to shipment with the
Ohmeda BiliBlanket® Meter II. Because your facility may use a different photometer to measure the light
intensity output, it is necessary to understand how your reading correlates to the Ohmeda reading. The
following table provides a light intensity output conversion chart, when measured at 12 inches (30 cm) from
the center of the neoBLUE mini light enclosure.
neoBLUE mini Light Intensity Output Conversion Chart
Photometer:
Ohmeda BiliBlanket®
Meter II
Joey Dosimeter
Model JD100
Olympic
Bili-Meter™
Intensity:
(µW/cm
2
/nm)
35
90.6
20.6
30
77.6
17.6
25
64.5
14.2
20
51.2
10.9
15
38.0
7.8
10
25.5
4.9
Reading Tolerance
as per manufacturer:
+/- 3 %
+/- 2 %
+/-1.9 %
If needed, please call Natus Medical Technical Service at +1 888-496-2887 (US only) or your authorized
service representative.
