International Light Technologies BiliBlanket ILT750-BILI454 User manual

ILT750-BILI454
Blue Light Meter
Operaon Manual
ILT750-BILI454 Manual Rev A, Dated 4/22/2021 Page number 1 r 7

Table of Contents
1. Introduction 3
2. Button Features 3
3. Taking a Measurement 5
3A. Measurement O er iew 5
4. Graphing 5
5. Battery 6
6. Sensor 6
7. Calibration 7
8. Warranty 7
ILT750-BILI454 Manual Rev A, Dated 4/22/2021 Page number 2 r 7

The ILT750-BILI454 versi n was designed t match the Ohmeda Biliblanket II light meter b th
spatially and spectrally. ILT’s m dernized versi n Bili Blue Light Meter is registered as a class 1
medical device and was designed, manufactured and calibrated t ur highest standards,
including, ISO13485, ISO9001, ISO170245 and NIST Traceability.
1. INTRODUCTION
The ILT750-BILI454 is a hand held bili (blue light) light meter designed t measure b th
irradiance in watts per square centimeter (W/cm²) and band irradiance in watts per square
centimeter per nan meter (W/cm²/nm). It can be used t measure all types f GE ne natal
ph t therapy blue light s urces including LED light s urces, illuminated pads and blankets, and
traditi nal lamp based lighting systems. The system was designed t cl sely match the
disc ntinued Ohmeda sens r design and measures the spectral range f 420 t 520 nm.
The ILT750 includes 2 AA batteries, a st rage case, and a NIST traceable/ISO17025 accredited
calibrati n with certificate.
2. BUTTON FEATURES
The ILT750 Bili Light Meter has a f ur butt n membrane fr nt panel with that all ws numer us
pr cesses.
1 POWER ON / OFF (0.5 SEC)
L ng press (On) and l ng press (Off): Turn device n r ff.
ILT750-BILI454 Manual Rev A, Dated 4/22/2021 Page number 3 r 7

2 HOLD / ZERO (4SEC)
HOLD: Sh rt press - Freezes the values sh wn n the display. “HOLD” will be displayed in
the upper left f the screen when in h ld m de. Sh rt press again t turn ff HOLD. The display
will bec me active again.
ZERO: Takes a reading and subtracts that value fr m all future readings. ZERO is activated
with a l ng press(4 sec nds). A “Z” will appear in the l wer left f the screen t indicate the
meter has had a user zer applied. NOTE: The meter will revert back t fact ry zer each time
it is shut ff.
2A. Ambient ZERO: Place the sens r in the measurement l cati n with the test s urce
ff. Wait 2-3 sec nds f r the system t take a measurement f the ambient light levels.
Perf rm a l ng press (4 sec nds) t rec rd an Ambient Zer . The meter will subtract
the ambient light reading fr m all readings taken until a new zer is perf rmed r the
meter is turned ff. Turn the lamp n and measure nly the light supplied fr m the test
lamp.
2B. Dark ZERO: The ILT750 c mes with the fact ry zer setting pre-pr grammed and
d es n t require a user dark. T perf rm a dark zer , c ver the sens r with an paque
bject, wait 2-3 sec nds and l ng press the zer butt n f r 4 sec.
3 UNITS
Short press to toggle units and calibration factors.
Th ugh µW/cm2/nm is bec ming a m re pred minantly used set f units f r testing blue lights
used t reduce bilirubin levels in the bl d, there are still many s urces and light meters that
ffer the units f W/cm2. Rather than requiring 2 sens rs r 2 calibrati ns, The ILT750 can
switch between W/cm2/nm and W/cm2 with the t uch f a butt n. The units will be sh wn n
the display al ng with the numerical values. The ILT750 will aut -range and the prefix will
update t indicate the c rrect light level(p, n, u, m). F r example, values less than 1
µW/cm2/nm will be sh wn as nW/cm2/nm and values higher than 999 µW/cm2/nm will be
sh wn as mW/cm2/nm.
4 GRAPH MODE
Short press to cycle through the graphing functions.
The Graph butt n has f ur functi ns that cycle forward each time butt n 4 is pressed. Start,
St p, Stats, Exit. It is n t p ssible t return t a previ us screen.
GRAPH: Changes the display t graphing m de and begins pl tting the results and temp rarily
st ring the readings f r final data analysis.
STOP: St ps graphing and h lds the display sh wing the last 60 results(30 sec nds)
ILT750-BILI454 Manual Rev A, Dated 4/22/2021 Page number 4 r 7

DATA: Sh ws the data analysis fr m when Graph was first pressed, including Min, Max, and
Average.
EXIT: Returns the display t numerical /n n graphing m de and clears the previ us graph data
fr m the display.
3. TAKING A MEASUREMENT
The ILT750 sens r is calibrated with the entire surface f the d med diffuser ver-filled with
light. The calibrati n reference plane is the fr nt surface f the h using. When taking an
irradiance r band irradiance measurement, the same c nditi ns sh uld be applied. The light
s urce t be measured must fully c ver the sens r. The sens r sh uld be placed s that the
fr nt surface is at the treatment l cati n and perpendicular t the s urce.
The ILT750 ffers simple perati n. Simply turn n the lamp, press and h ld butt n 1 t turn n
the meter, place the sens r in the measurement l cati n and view the results n the display.
3A Measurement O er iew:
L ng Press butt n 1 until the meter turns n.
Change the units as needed by pressing butt n 3.
Turn n the lamp and let it warm up 2 minutes ( r l nger).
Place the sens r in the measurement l cati n with the fr nt surface f the sens r
perpendicular t the lamp, at the same distance as the patient will be placed.
The meter will begin pr viding a read ut n the display, updating every ½ sec nd.
Press butt n 4 t graph and analyze the results as needed.
L ng press butt n 1 t shut ff y ur device, r wait 5 minutes and the meter will shut ff
aut matically t c nserve battery life.
(N te: the ILT750 meter is a lamp/light s urce diagn stic t l. The meter and sens r
head are n t intended t be used while a patient is underg ing treatment r t c me in
c ntact with the patient.)
4. GRAPHING
The graph m de is designed t test the unif rmity r stability f a light’s utput f r up t 30
sec nds.
The bar graph updates every 1/2 sec nd ffering an easy t evaluate, visual resp nse t
changes in intensity ver time. The graph can display up t 60 readings (30 sec nds) and will
begin t scr ll f rward sh wing nly the m st current 60 readings when used f r l nger
durati ns.
If the sens r is m ved sl wly acr ss a bili-pad/blanket r under a lamp, the ILT750 will map the
uniformity f the utput ver the target area. If the sens r is held stati nary, graph m de can
verify the stability f the lamps utput.
ILT750-BILI454 Manual Rev A, Dated 4/22/2021 Page number 5 r 7

T c mplete a measurement while graphing, press the 4 butt n. This will freeze/h ld the last 60
readings n the display f r review.
Press butt n 4 a third time t access the Data Analysis Display. The graph will be replaced by
the graph-analysis wind w and pr vide a read ut f the Min, Max and Average readings.
T exit the graph m de, Press butt n 4 a third time. This c ncludes the graph measurement
and returns the meter back t a numerical measurement display.
Review: Press butt n 4 nce t enter graph m de and take y ur measurements. Press again t
st p measuring and review graph. Press a third time t review the analysis and finally press a
f urth time t return t the main display.
5. BATTERY
The ILT750 uses 2x AA batteries that c me pre-installed with a new meter.. The p wer drain
while the meter is in st rage is an insignificant am unt, (10+ year shelf life), h wever, it is n t
rec mmended t leave the batteries in the meter when it will n t be used f r 60 days r l nger.
The meter is pr grammed with a 5 minute aut - ff timer. This will help prevent accidental
battery drain during use, st rage r shipping.
The meter will aut matically detect a l w battery c nditi n, display a l w-battery n tificati n and
prevent the user fr m taking any readings.
5A. BATTERY REPLACEMENT
Battery replacement can be d ne by the user r their service department. We
rec mmend standard Duracell AA battery (MN1500).
The ILT750 battery c mpartment is l cated n the rear f the meter. T access the
c mpartment. Press d wn at the gr ves f the battery c mpartment c ver and slide
t wards the b tt m f ILT750 meter. Rem ve the c ver. Rem ve and recycle the ld
batteries. Insert new batteries in the c rrect rientati n, as sh wn in the battery
c mpartment. Replace the battery c mpartment c ver.
6. SENSOR
The sens r n the ILT750 is hard-wired t prevent l ss r inadvertent sens r swapping. The
sens r is n t waterpr f and sh uld n t be submerged. Th ugh the seams f the sens r
h using were designed f r a tight fit, liquids sh uld be used sparingly when cleaning the sens r
t prevent leakage int the h using.
ILT750-BILI454 Manual Rev A, Dated 4/22/2021 Page number 6 r 7

The white d me is an input ptic, ften called a d med diffuser. It sh uld be kept clean and can
be wiped with lens cl thes r ther n n abrasive materials. This diffuser is designed t impr ve
the spatial c sine resp nse f the sens r s that it can accurately gather the light c ming in
fr m multiple angles. The entire surface f the diffuser sh uld be c vered with light during
measurements.
The sens rs head can be rem ved fr m the meter b dy by sliding
the head t the right while the display is face up. The head can be
attached facing up f r measurement f lamps and verhead s urces,
r facing d wn t measure pad, fiber ptics and blankets. The sens r
cable includes a small Velcr strap t keep the cable neatly wrapped
when the head is attached t the meter b dy. Unwrap the Velcr
strap t release the 3-f t cable. Rem te detect r use maybe
prefered f r measuring inside an incubat r.
N te: The ILT750 meter is a lamp/light s urce diagn stic t l. The meter and sens r head are
n t intended t be used while a patient is underg ing treatment r t c me in c ntact with the
patient.
7. CALIBRATION
ILT rec mmends an annual calibrati n f r all equipment, h wever, the end user may, thr ugh
their wn QC pr cess, create their wn calibrati n cycle.
Service: Please be sure t btain an RMA number n the ILT website pri r t shipment. Be
sure t list the RMA number n the packing list and shipping label.
RMA f rm: http://www.intl-lighttech.c m/service-supp rt/rma-f rm
Email: [email protected] m
Ph ne: 978 818 6180
8. WARRANTY
The equipment y u have purchased has been expertly designed and was carefully tested and
inspected bef re being shipped. If pr perly perated in acc rdance with the instructi ns
furnished, it will pr vide y u with excellent service. The equipment is warranted f r a peri d f
twelve (12) m nths fr m date f purchase t be free f defects in material r w rkmanship. This
warranty d es n t apply t damage resulting fr m impr per set up, accident, abuse, l ss f
parts, r unauth rized alterati n / repair. The equipment will be repaired r replaced, at ur
pti n, with ut charge t the wner f r parts r lab r incurred in such repair. This warranty shall
n t apply unless the equipment is returned f r ur examinati n with all transp rtati n charges
prepaid. We accept n ther bligati n r liability in c nnecti n with said equipment.
ILT750-BILI454 Manual Rev A, Dated 4/22/2021 Page number 7 r 7