URIT 12 User manual

CONTENT
Chapter 1: Introduction..............................1
Chapter 2: Technical Specifications...........5
Chapter 3: Principal of Operation...............6
Chapter 4: Blood Sample Collection..........7
Chapter 5:Appearance and Function........8
Chapter 6: Setting......................................9
Chapter 7: Operation...............................15
Chapter 8: Trouble-shooting....................20
Chapter 9: Maintenance..........................23
Chapter 10: Meaning of Marks.................25

Chapter 1: Introduction
URIT-12 Hemoglobin Meter is designe-
d for use only with H12 Hemoglobin Test
Strip from URIT Medical Electronic Co., Ltd.,
for the quantitative measurement of hemo-
globin in capillary and venous whole blood.
According to the conversion between
normal average hemoglobin concentration
and haematocrit(HCT), URIT-12 Hemoglo-
bin Meter can obtain the hint of HCT base
on determined hemoglobin concentration.
Hemoglobin is the oxygen-carrying protein
in red blood cells. The quantitative measur-
ement of hemoglobin is indicated and clini-
cally useful in acute illness as well as in
general care. The normal range hemoglobi-
n values reported in medical literature are
gender and age dependent:
Adult males 13.5~18.0 g/dL.
Adult females 12.0~16.0 g/dL.
Infants Ranging from 14.5
~22.5g/dL after birth

to 11.1~14.1g/dL at
6 months old.
Children Gradually increase
from infant to adult
levels.
Low hemoglobin levels may indicate
condition such as anemia or hemorrhage.
Elevated hemoglobin levels may indicate
conditions such as polycythemia. Ahemog-
lobin test may be used as part of a general
screen for many types of patient populatio-
ns, including the elderly, children, and
women of child-bearing age, and prior to
giving or receiving transfusions. Due to diff-
erences among patient populations, we
recommend that each clinical site establish
its own reference ranges.
People use Hemoglobin Meter with the
whole blood for local inspection or tending,
which is helpful for evaluating patients’ sy-
mptom quickly and providing proper treatm-

ent determination.
When test result is different from clinic-
al symptom, repeat test. If there are still so-
me problems, validate it by control or com-
pare hemoglobin test methods with that of
other labs.
Judge the clinical signification of test
result by following the doctor’s direction.
Prior to any medication, treatment should
be provided by doctor based on test result
and clinical symptom.
Warning:
Please read this manual carefully befo-
re using URIT-12 Hemoglobin Meter.
1. URIT-12 Hemoglobin Meter is for
in vitro diagnostic use only.
2. Insufficient blood sample volume
and inadequate mixing of EDTA-treated
samples may affect results.
3. URIT-12 Hemoglobin Meter is des-
igned for use only with H12 Hemoglobin

Test Strips from URIT Medical Electronic
Co., Ltd. Prior to the first use of test strips,
read the manual carefully and input the Lot
Code to the meter.
4. As all diagnostic tests, test results
should be evaluated according to the speci-
fic patient’s condition. Any results demonst-
rating the inconsistency with the patient’s
clinical status should be repeated or suppl-
emented with additional test data.
5. In order to test the hemoglobin ac-
curately, please use and maintain the meter
correctly. Review this manual before the fir-
st time using the meter.
6. While the test is in progress, do not
disturb or move the meter or strip, even pr-
ess any key.
7. Over strong electromagnetic field
will disturb its work. We recommend you to
keep the distance between meter and micr-
owave oven over 2 meters when you test in
the room.

8. Over high temperature and humidi-
ty will affect its working. We recommend
you not to use it in the sauna or bathroom.
9. Use it at the temperature of 15℃~
30℃.
10. When equipment is at work, please
do not look directly at light source.
11. Avoid any liquid permeating the m-
eter anytime.
Chapter 2: Technical Specifications
Parameter: Hemoglobin in fresh whole
blood.
Measuring Principle: Optical reflectance.
Strip: H12 Hemoglobin Test Strips.
Measuring time: Less than 12 seconds.
Haematocrit (HCT) hint: Display in perce-
ntage.
Measuring range: 4.0g/dL~24.0g/dL. Res-
ults under 4.0g/dL or over 24.0g/dL will dis-
play as “Lo” or “Hi” respectively so as to in-
dicate the result which is out of range.
Display: LCD, test results display in SI.

Storage function: Save the strip code,
memorize and update 250 test results
automatically.
Correction function: self-correction.
Weight: < 58g (Battery included).
Outer dimension: 102mm×50mm×19mm.
Power: DC 6V (Two CR2032 Battery).
Operating Ranges: 15~30℃;RH≤80% non
-condensing.
Ultimate Ranges: -20~55℃;RH<90% non-
condensing.
Others: Internal trouble check and display.
Available life: 8 years.
Chapter 3: Principal of Operation
The hemoglobin meter utilizes optical
reflectance for determination of the total
hemoglobin. The test strip is inserted into
the meter when prompted, a background
blank reading is automatically determined.
A drop of whole blood is applied to the test

spot on the strip, blood immediately disper-
ses within the membrane, contacting the
reagent, then reaction product could absor-
b spectrum in the range of 500nm-600nm.
The meter’s optical detector automatically
measure the change in membrane reflecta-
nce. The intensity of reflectance is inversely
proportional to the hemoglobin concentrati-
on. The meter calculates and displays the
total hemoglobin concentration in gram/de-
ciliter (g/dL) in 12 seconds based on a mat-
hematical conversion.

Chapter 4: Blood Sample Collection
1. Fresh capillary or EDTA-anticoagulate-
d venous whole blood may be used.
2. If an EDTA-treated sample is refrigera-
ted, allow it to come to room temperature
prior to use. EDTA-treated blood samples
should be mixed using end to end inversio-
ns at least 8 times prior to use, and should
be tested within 24 hours.
3. For fresh venous whole blood samples,
collect approximately 0.1mL into an antico-
agulant-free plastic syringe.

Chapter 5: Appearance and function
1. Appearance:
The meter is composed of keys, LCD,
circuitry board, optical system, strip holder,
cover and battery. See the picture of appe-
arance as below:
2. Function:
Power switch:Turn meter on and confirm
key (turning meter off is confirmation)
▲key: up
▼key: down