Konica JM103 User Manual

Direct reading for total serum bilirubin in mg/dL or micro mol/L
Premature baby measurable (more than 1000g)
Skin color affects measurment much less than in previous models.
Non-invasive
Compact & light weight
Easy operation
No disposable required
No user calibration required
Mininum 400 times measurements per fully-charged battery
Long light bulb life (150,000 measurements)
Built-in checker in charger unit

Captures Data Instantly, Compact, Easy to Operate,Designed for All Skin ColorsCaptures Data Instantly, Compact, Easy to Operate,Designed for All Skin Colors

Actual Size

JAUNDICE METER

JM-103

JAUNDICE METER

JM-103

AGMDP

K

Printed in Japan9242-4886-41

©2002 KONICA MINOLTA SENSING, INC.

7

Forcorrect use and for your safety,be sure to read the instruction
manual before usingthe instrument.

• Alwaysconnectthe instrument tothe specifiedpower supply

voltage.Improperconnectionmay causea fire orelectricshock.

• Be sure to use the specified batteries.Using improper batteries

may causea fire or electricshock.

3-91, Daisennishimachi, Sakaiku, Sakai, Osaka 590-8551, Japan
Konica Minolta (CHINA) Investment Ltd. SE Sales Division

Rm.29A,K Cross Region Plaza, No.899 Lingling Rd., Shanghai, China
Phone: [phone] FAX: [phone]

Konica Minolta Sensing Singapore Pte Ltd.

10, Teban Gardens Crescent, Singapore 608923
Phone:

[phone]

FAX:

[phone]

Addresses and telephone/fax numbers are subject to change without notice. For the latest contact
information, please refer to the KONICAMINOLTA SENSING Worldwide Offices web page (link below).

SAFETY PRECAUTIONS

http://konicaminolta.com/about/se/contact.html

Main Specifications

Measuring method: Determines yellowness of subcutaneous

tis-sue by using two optical paths to
measure optical density difference at two

wavelengths
M easuring range: 0.0~25.0 mg/dL or 0~425 µmol/L
A ccuracy (σ):

±

1.5 mg/dL or±25.5µmol/L

D isplay: LCD(back light)

Figure: 3 figures

Unit: mg/dL, µmol/L(changeable)

Battery mark

Ready lamp: green LED lit
Ligh t source: Pulse xenon arc lamp
Ligh t source life: 150,000 measurements
S ensors: Silicon photodiodes
P ower source: Special Ni-MH battery
P rotection type Internally powered instrument, BF type
and le vel:
P ossible number of At least 400 measurements when fully
M easurements: charged

Operating temperature

/ 10 to 40°C, relative humidity 30 to 95% or

humidity range: less with no condensation

S torage temperature/

-10 to 50°C, relative humidity 30 to 95%
humidit y range: or less with no condensation
D imensions: 48mm(W )×154mm(H)×32mm(D)
W eight: 150g(including Ni-MH battery)
O ther function: Averaging function

Standard accessories:Charger Unit (with a built-in checker)

AC Adapter,Strap,Soft Case

Charger Unit

(with a built-in checker)

Fig.1

Fig.2

T he Jaundice Meter JM-103 determines the yellowness of the sub-cutaneous tissue of a newborn infant by measuring the difference in optical
densities for light in the blue (450 nm) and green (550 nm) wavelength regions.The measuring probe has two optical paths (see Fig. 1). The use of
this method allows measurement of yellow-ness of the skin and subcutaneous of a newborn infant with the in-fluences of melanin pigment and
skin maturity kept at a minimum, which was impossible with conventional methods.

When the measuring probe is
pressed against the forehead or ster-
num of the infant, the built-in
xenon lamp flashes, and the light
from the xenon lamp is guided to
the skin surface through the glass
fiber and illuminates the skin. The
light is then scattered and absorbed
in the skin repeatedly, and finally
returns to the glass fiber (sensor
side). Of the light that returns to the
fiber, the part scattered from
shallow areas of the subcutaneous
tissue passes through the inner
core (short optical path) of the fiber
while the part scattered from deep
areas of the subcutaneous tissue
passes through the outer core (long
optical path), and then they reach
their corresponding photodiode.

By calculating the difference in optical densities, the parts that are
common to the epidermis and dermis will be deducted, and as a re-
sult the difference in optical densities between the two wavelength
regions can be obtained for the subcutaneous tissue only.
Since the optical density difference shows a linear correlation with
serum bilirubin concentration, it is converted to serum bilirubin
con-centration and indicated digitally.

Principle

2-wavelength photodiode

2-wavelength
photodiode

Sensor for short
optical path

Sensor for long
optical path

Diffuser panel

Diffuser panel

Long optical path

Light-emitting path

Short optical path

Glass fiber

Xenon lamp

Long optical path

Subcutaneous tissue

Epidermis

Dermis

Mature baby

Premature baby

Long optical path

Short optical path

Short optical path