GE BiliSoft Operation And Maintenance Manual page 24

fiberoptic light pad) or 9-point (for large fiberoptic light pad) check, which provides
more accurate irradiance values.
To perform the center-row check, measure the irradiance level at each point on the center
row using the template printed on the fiberoptic light pad. For a small pad, the center row
points are C and D. For the large pad, the center row points are D, E and F. Calculate the
average of the center row irradiance measurements. Use the first column of the chart below
to determine if the minimum acceptable center-row irradiance has been met. If the average
of the light meter readings meets or exceeds the acceptable minimum irradiance, then the
unit is ready for use.
If the meter readings are lower than these values, perform the more comprehensive 6-point
(small pad) or 9-point (large pad) check. Measure the irradiance level at each point using the
template printed on the fiberoptic light pad. Calculate the average of the irradiance
measurements. Use the second column of the chart below to determine if the average
irradiance is within specification. If the average irradiance is outside of the acceptable range,
see the troubleshooting section of this manual.
Large Pad
Small Pad
* Using an Ohmeda Medical BiliBlanket Meter II
Note: When the BiliSoft fiberoptic light pad is inserted into a BiliSoft Pad Cover or BiliSoft Nest,
the nominal spectral irradiance is 35 µW•cm
50 µW•cm •nm
-2
Once the check is complete, turn the unit off. The unit is ready for use.
It is recommended that the BiliSoft LED Phototherapy System be checked with the
Ohmeda Medical BiliBlanket
each patient.
5-2
Center-Row Irradiance*
(bare fiberoptic light pad)
µW•cm •nm
-2 -1
(D + E + F)/3 ≥ 48.5
(C + D)/2 ≥ 70.0
(small pad).
-1
Meter II for desired therapeutic intensity before use with
®
M1110147 Rev.
Average Irradiance *
(bare fiberoptic light pad)
(+/- 25%) µW•cm
(A + B + C + D + E + F + G + H + I)/9 = 49
(A + B + C + D + E + F) /6 = 70
•nm (large pad) and
-2 -1
5 © 2007 Datex-Ohmeda. All rights reserved.
•nm
-2 -1