CareTouch Platinum Blood Pressure Monitor User manual

Manufactured in China for Future Diagnostics LLC
Brooklyn N.Y. 11220
Package Design © 2016
CareTouch is a Trademark of Future Diagnostics LLC

1
CATALOGUE
INTRODUCTION ............................................................... 2
Safety Information
LCD Display Signal
Monitor Components
BEFORE YOU START .......................................................... 5
Installing and Replacing the Batteries
Setting Date, Time and Measurement Unit
MEASUREMENT ............................................................... 9
Tie the Cuff
Start the Measurement
DATA MANAGEMENT 11
Recall the Records
Delete the Records
INFORMATION FOR USER ..................................................... 13
Tips for Measurement
Maintenance
ABOUT BLOOD PRESSURE.................................................... 15
What are systolic pressure and diastolic pressure?
What is the standard blood pressure classification?
Why does my blood pressure fluctuate throughout the day?
Why do I get a different blood pressure at home compared to the hospital?
Is the result the same if measuring on the right wrist?
TROUBLESHOOTING ......................................................... 17
SPECIFICATIONS ............................................................. 18
CONTACT INFORMATION...................................................... 19
COMPLIED STANDARDS LIST...................................................19
FCC STATEMENT ...................................................... 19
..........................................................
General Description
Measurement principle
Indications for use
CATALOGUE
EMC GUIDANCE ...................................................... 20

32
INTRODUCTION INTRODUCTION
The signs below might be in the user manual, labeling or other component.
They are the requirement of standard and using.
Safety Information
Features:
Systolic blood pressure
Diastolic blood pressure
Pulse rate
Historic record of up to 60 measurements
General Description
Thank you for selecting CARE TOUCH
Fully Automatic Wrist Blood Pressure Monitor (PSW01).
The monitor features blood pressure measurement, pulse rate measurement and
the result storage. The design provides you with two years of reliable service.
Readings taken by the PSW01 are equivalent to those obtained by a trained
observer using the cuff and stethoscope auscultation method.
This manual contains important safety and care information, and provides
step by step instructions for using the product.
Read the manual thoroughly before using the product.
Symbol for “THE OPERATION
GUIDE MUST BE READ”
Symbol for “SERIAL NUMBER”
Symbol for “TYPE BF APPLIED
PARTS”
Symbol for “DIRECT CURRENT”
Symbol for “ENVIRONMENT PROTECTION -
Electrical waste products should not be
disposed of with household waste. Please
recycle where facilities exist. Check with
your local authority or retailer for recycling
advice”
Symbol for “MANUFACTURE
DATE”
CAUTION
Caution: These notes must be observed to
prevent any damage to the device.
SN
This product uses the Oscillometric Measuring Method to detect blood pressure.
Before every measurement, the unit establishes a “zero point” equivalent to the
atmospheric pressure. Then it starts inflating the cuff. Meanwhile, the unit detects
pressure oscillation generated by beat-to-beat pulsatile, which is used to determine
the systolic pressure and diastolic pressure as well as pulse rate.
The device also compares the longest and the shortest intervals of detected pulse
wave to with the average value, and then calculates the standard deviation. The
monitor will light up a warning symbol when the calculated standard deviation is
larger than or equal to 25%.
Measurement Principle
Indications for Use
The Blood Pressure Monitor is digital monitors intended for use in measuring blood
pressure and heartbeat rate with wrist circumference ranging
from 13.5cm to 21.5 cm ( about 5⅓˝-8½˝ ). It is intended for adult indoor use only.
This device is intended for adult use only.
This device is intended for no-invasive measuring and monitoring of arterial blood
pressure. It is not intended for use on extremities other than the wrist or for functions
other than obtaining a blood pressure measurement.
Do not confuse self-monitoring with self-diagnosis. This unit allows you to monitor your
blood pressure.Do not begin or end medical treatment without asking a physician for
treatment advice.
If you are taking medication,consult your physician to determine the most appropriate
time to measure your blood pressure. Never change a prescribed medication without
consulting your physician.
If the cuff pressure exceeds 40 kPa (300 mmHg),the unit will automatically deflate.
Should the cuff not deflate when pressures exceeds 40 kPa (300 mmHg), detach the cuff
from the wrist and press the START/STOP button to stop inflation.
To avoid measurement errors, carefully read this manual before using the product.
The equipment is not AP/APG equipment and not suitable for use in the presence of a
flammable anesthetic mixture with air of with oxygen or nitrous oxide.
The operator shall not touch output of batteries and the patient simultaneously.
Do not use the monitor under the conditions of strong electromagnetic field (e.g. medical
RF equipment) that radiates interference signal or electrical fast transient / burst signal.
The user must check that the equipment functions safely and see that it is in proper
working condition before being used.
Please use ACCESSORIES and detachable partes specified/ authorised by
MANUFACTURE. Otherwise, it may cause damage to the unit or danger to the
user/patients.
Manufacturer will make available on request circuit diagrams, component parts list etc.
This unit is not suitable for continuous monitoring during medical emergencies or
operations. Otherwise, the patient’s wrist and fingers will become anaesthetic, swollen
and even purple due to a lack of blood.
Please use the device under the environment which was provided in the user manual.
Otherwise, the performance and lifetime of the device will be impacted and reduced.
During use, the patient will be in contact with the cuff. The materials of the cuff have
been tested and found to comply with requirements of ISO 10993-5:2009 and ISO
10993-10:2010. It will not cause any potential alergic reaction or contact injury.
The device doesn’t need to be calibrated within the two years of reliable service.
Please dispose of ACCESSORIES, detachable parts, and the ME EQUIPMENT according
to the local guidelines.
When the device was used to measure patients who have common arrhythmias such as
atrial or ventricular premature beats or atrial fibrillation, the best result may occur with
deviation. Please consult your physician about the result.
This device is contraindicated for any female subject who may be suspected of, or is
pregnant. Besides providing inaccurate readings, the effects of this device on the fetus
are unknown.
The device has been evaluated clinically using manual cuff/stethoscope auscultation as
the reference. Blood pressure measurements determined with this device are equivalent
to those obtained by a trained observer using the cuff/stethoscope auscultatory method,
within the limits prescribed by the American National Standard, Manual, electronic, or
automated sphygmomanometers.”

54
Systolic
blood pressure High pressure result
Diastolic
blood pressure Low pressure result
Pulse Pulse/minute; heartbeats/minute
mmHg Measurement unit the blood pressure
(1mmHg=0.133kPa)
kPa Measurement unit of the blood pressure
(1kPa=7.5mmHg)
Current time
Shaking
reminding Shaking will result in inaccurate
Irregular heartbeat Detection
Low battery
Batteries are low and need to be replaced
Grade The grade of the blood pressure
LCD Display Signal
SYMBOL DESCRIPTION EXPLANATION
Month/Day,Hour/Minute
Heartbeat Heartbeat detection during the measurement
CUFF
(Type BF applied part)
BATTERY
COMPARTMENT
Monitor Components
Component List:
1. PCBA;
2. Air Pipe;
3. Pump;
4. Valve;
5. Cuff.
List
1) Fully Automatic Wrist Blood Pressure Monitor PSW01
2) 2×AAA batteries
3) User manual
4) Carrying case
INTRODUCTION INTRODUCTION
Memory Display the serial number of the
measurement
LCD DISPLAY
GRADE
TIME
SYSTOLIC
DIASTOLIC
MEM BUTTON
SET BUTTON
START/STOP BUTTON
PULSE RATE
Irregular heartbeat

76
BEFORE YOU START BEFORE YOU START
•.Open the battery cover.
•.Install the batteries by matching the correct polarity, as
shown below. Always use the correct battery type (2×AAA batteries).
•.Replace the cover.
Installing and Replacing the Batteries
Remove batteries if the device is not likely to be used for some time.
The old batteries are harmful to the environment, do not dispose with other daily trash.
Remove the old batteries from the device and follow your local recycling guidelines.
Replace the batteries whenever the below happen
The shows
The display dims
The display does not light up
Do not dispose of batteries in fire. Batteries may explode or leak.
Setting Date, Time and Measurement Unit
It is important to set the clock before using your blood pressure
monitor, so that a time stamp can be assigned to each record that is
stored in the memory.
(year :2010—2050,time format:24 H/12 H)
CAUTION
1.
hold pressing “SET” for
3 seconds to enter the
mode for year setting.
2.Press the “MEM” to
change the [YEAR].
3.When you get the
right year, press
“SET” to set down
and turn to next step.
When the monitor is off,
press “SET”button,it will
display the time.Then

98
Tie the Cuff
1.Remove all accessories (watch,bracelet,etc) from your wrist.If your
physician has diagnosed you with poor circulation in your wrist,use the
other one.
2.Roll or push up your sleeve to expose the skin.
3.Apply the cuff to your wrist with your palm facing up.
4. Position the edge of the cuff about 1-1.5cm.
5. Fasten the wrist cuff around your wrist ,leaving no extra room between
the cuff and your skin. If the cuff is too loose, the measurement will not
be accurate.
Rest for 5 minutes before measuring.
Wait at least 3 minutes between measurements.This allows your blood
circulation to recover.
For a meaningful comparison ,try to measure under similar conditions .For
example,take daily measurements at approximately the same time, on the
same wrist or as directed by a physician.
MEASUREMENT
BEFORE YOU START
4.Repeat steps 2 and 3 to confirm [MONTH] and [DAY].
5.Then the monitor diverts to time setting. Select the time format. Repeat steps
2 and 3 to confirm the time format , [HOUR] and [MINUTE].
6.Repeat steps 2 and 3 to confirm the measurement unit.
7.After confirming the meausrement unit, the LCD will
display all the settings you have done one by one and then
the monitor will shut off.

1110
MEASUREMENT DATA MANAGEMENT
1.When the monitor is off,
press the START/STOP to turn on
the monitor, and it will finish the
whole measurement.
Adjust the zero.
LCD display
Inflating and measuring.
Display and save the
result.
Start the Measurement
2.Press the START/STOP to
power off ,otherwise it will turn
off within 1 minute.
Recall the Records
1.
2. Press the “MEM”
or “SET” to get the
record you want.
The most recent record (1) is shown first. Each new measurement
is assigned to the first(1) record.All other records are pushed back
one digit (e.g., 2 becomes3, and so on), and the last record(60) is
dropped from the list.
CAUTION
The date and time will
display alternately.
UP
DOWN
The corresponding
time is 10:38.
The corresponding
date is 5th January.
When the monitor is off,
press “MEM” button to
show the latest measurement
record.

1312
DATA MANAGEMENT INFORMATION FOR USER
Tips for Measurement
1.
2.Press “SET” to confirm
deleting and the monitor will
turn off.
3.If you don’t want to delete the
records, press START/STOP
to escape.
If you did not get the correct measurement, you can delete all
results by following steps below.
Delete the Records
4.If there is no record, the
right display will show.
In the memory mode, hold
pressing “MEM” button for
3 seconds, the flash display
will show.
Measurements may be inaccurate if taken in the following
circumstances.
Within 1 hour
after dinner or drinking
Within 20 minutes
after taking a bath
In a very cold environment
Immediate measurement
after tea, coffee, smoking
When talking or moving your fingers
When you want to discharge urine

1514
ABOUT BLOOD PRESSURE
INFORMATION FOR USER
Maintenance
In order to get the best performance, please follow the
instructions below.
Put in a dry place and avoid the sunshine
Avoid intense shaking
and collisions
Using wet cloths to remove dirt
Avoid touching water,
clean it with a dry cloth in case.
Avoid dusty and unstable
temperature environment
Avoid washing the cuff
When ventricles contract and pump blood
out of the heart, blood pressure reaches its
maximum value, the highest pressure in the
cycle is known as systolic pressure. When
the heart relaxes between heartbeats, the
lowest blood pressure is diastolic pressure.
What are systolic pressure and diastolic pressure?
What is the standard blood pressure classification?
press
artery vein
blood discharging
Systolic
relax
blood entering
Diastolic
CAUTION
Irregular Heartbeat Detector
The appearance of the IHB icon indicates that a pulse irregularity consistent with
an irregular heartbeat was detected during measurement. Usually this is NOT a
cause for concern. However, if the symbol appears often, we recommend you
seek medical advice. Please note that the device does not replace a cardiac
examination, but serves to detect pulse irregularities at an early stage.
The chart on the right is the
standard blood pressure classifi-
cation published by American
Heart Association (AHA).
AHA Home Guideline for
Upper Limit of Normal BP
Please consult a physician if your measuring result falls outside the range.
Please note that only a physician can tell whether your blood pressure value
has reached a dangerous point.
CAUTION
SYS 135 mm Hg
DIA 85 mm Hg
Blood Pressure Category
Normal
Prehypertension
High Blood Pressure
(Hypertension) Stage 1
High Blood Pressure
(Hypertension) Stage 2
Hypertensive Crisis
(Emergency care needed)
Systolic
mmHg (upper#)
Diastolic
mmHg (lower#)
less than 120
120-139
140-159
160 or higher
Higher than 180
and
or
or
or
or
less than 80
80-89
90-99
100 or higher
Higher than 110
This chart reflects blood pressure categories defined by AHA
• If you have any problems with this device, such as setting up, maintaining or using,
please contact the SERVICE PERSONNEL of CARE TOUCH. Don’t open or repair
the device by yourself.
• Please report to CARE TOUCH if any unexpected operation or events occur.
CAUTION
An irregular heartbeat is detected when a heartbeat rhythm varies while the unit is
measuring the systolic and diastolic blood pressure.During each measurement,this
equipment records the heartbeat intervals and works out the standard deviation.
If the calculated value is larger than or equal to 25%,the irregular heartbeat symbol
appears on the symbol when the measurement results aredisplayed.

1716
TROUBLESHOOTING
This section includes a list of error messages and frequently
asked questions for problems you may encounter with your wrist
blood pressure monitor. If the products not operating as you
think it should, check here before arranging for servicing.
ABOUT BLOOD PRESSURE
PROBLEM SYMPTOM CHECK THIS REMEDY
No power
Low
batteries
Error
message
Display is dim
or not light up.
Batteries are exhausted. Replace with new batteries
Insert the batteries
correctly
Replace with new batteries
Batteries are inserted
incorrectly.
Show on
the display Batteries are low.
E 1 shows The cuff is not secure. Refasten the cuff and then
measure again.
E 2 shows The cuff is very tight Refasten the cuff and then
measure again.
E 3 shows The pressure of the
cuff is excess.
Relax for a moment
and then measure again.
E 10 or
E 11 shows
The monitor detected
motion while measuring.
Movement can affect
the measurement.Relax
for a moment and then
measure again.
E 20 shows
E 21 shows Relax for a moment and
then measure again.
EExx,shows on
the display.
A calibration error
occurred.
Retake the measurement.
If the problem persists,
contact the retailer or our
customer service
department for further
assistance.Refer to the
warranty for contact
information and return
instructions.
The measurement
process does not detect
the pulse signal.
Loosen the clothing on
the wrist and then
measure again.
Measure incorrectly.
Why does my blood pressure
fluctuate throughout the
day?
1. Individual blood pressure
varies multiple times everyday. It is
also affected by the way you tie
your cuff and your measurement
position, so please take the
measurement under the same condition.
2.If the person takes medicine,
the pressure will vary more.
3.Wait at least 3 minutes for
another measurement.
Why do I get a different
blood pressure at home
compared to the hospital?
The blood pressure is different
even throughout the day due to
weather, emotion, exercise etc,
Also, there is the “white coat”
effect, which means blood pressure
usually increases in clinical settings.
Is the result the same if
measuring on the right
wrist?
It is ok for both wrists, but there
will be some different results for
different people. We suggest you
measure the same wrist every time.
What you need to pay
attention to when you measure
your blood pressure at home.
If the cuff is tied properly.
If the cuff is too tight or too loose.
If the cuff is tied on the wrist.
If you feel anxious.
Taking 2-3 deep breaths before
beginning will be better for measuring.
Advice: Relax yourself for 4-5 minutes
until you calm down.

1918
Power supply Battery powered mode:
2*AAA batteries (3V DC)
Display mode Digital LCD V.A.35mm×41mm
Measurement mode Oscillographic testing mode
Measurement range
Accuracy
Normal working condition
Storage & transportation
condition
Measurement perimeter
of the wrist About 13.5cm-21.5cm
Net Weight Approx.100g(Excluding the dry cells)
External dimensions
Attachment
Approx.73mmx67.5mmx22.5mm
2*AAA batteries,user manual,Carrying case
Mode of operation Continuous operation
Degree of protection Type BF applied part
Protection against
ingress of water
Software version
Device classification
V01
Internally Powered ME Equipment
WARNING: No modification of this equipment is allowed.
Pressure: 0kPa-40kPa (0mmHg-300mmHg)
pulse value: (40-199) times/minute
SPECIFICATIONS CONTACT INFORMATION
Contact Information
Complied Standards List
Pressure:
5℃-40℃within±0.4kPa(3mmHg)
pulse value:±5%
Temperature:5℃to 40℃
Relative humidity: ≤85%RH
Atmospheric pressure: 86kPa to 106kPa
Temperature:-20℃to 60℃
Relative humidity: 10%RH to 93%RH
Atmospheric pressure: 50kPa to 106kPa
IP22
Risk management
Labeling
User manual
General Requirements
for Safety
Electromagnetic
compatibility
Non-invasive
Sphygmomanometers
General
Requirements
ISO 14971:2007
ISO/EN 15223-1:2012
EN 1041:2008
IEC 60601-1:2005
IEC 60601-1-2:2007
AASI/AAMI SP10:2002/A1:2003/A2:2006/(R)2008
800.758.3830
Manufactured in China for Future Diagnostics LLC
Brooklyn N.Y. 11220
Package Design © 2016
CareTouch is a Trademark of Future Diagnostics LLC
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause
undesired operation.

2120
EMC GUIDANCE
EMC GUIDANCE
1) * This product needs special precautions regarding EMC and needs to be
installed and put into service according to the EMC information provided, and
this unit can be affected by portable and mobile RF communications equipment.
2) * Do not use a mobile phone or other devices that emit electromagnetic
fields, near the unit. This may result in incorrect operation of the unit.
3) * Caution: This unit has been thoroughly tested and inspected to assure
proper performance and operation!
4) * Caution: This machine should not be used adjacent to or stacked with other
equipment and that if adjacent or stacked use is necessary, this machine should
be observed to verify normal operation in the configuration in which it will be
used.
Table 1 Guidance and MANUFACTURER’s declaration – ELECTROMAGNETIC
EMISSIONS- for all ME EQUIPMENT and ME SYSTEMS
Guidance and manufacturer’sdeclaration – electromagnetic emissions
RF emissions
CISPR 11 Group 1
Class B
Not applicable
Not applicable
Compliance
The device is intended for use in the electromagnetic environment specified
below. The customer or the user of the device should assure that it is used in
such an environment.
Harmonic emissions
IEC 61000-3-2
Voltage fluctuations/
flicker emissions IEC
61000-3-3
RF emissions
CISPR 11
Emissions test Electromagnetic environment - guidance
The device uses RF energy only for its
internal function. Therefore, its RF
emissions are very low and are not likely
to cause any interference in nearby
electronic equipment.
The device is suitable for use in all establishments,
including domestic establishments and those
directly connected to the public low-voltage power
supply network that supplies buildings used for
domestic purposes.
Guidance and manufacturer’s declaration – electromagnetic immunity
IMMUNITY test
±6 kV contact
±8 kV air ±6 kV contact
±8 kV air
±2 kV for
power supply lines Not applicable
±1 kV line(s)
to line(s)
±2 kV line(s)
to earth
<5% U
T
(>95% dip in U
T
)
for 0.5 cycle
40% U
T
(60% dip in U
T
)
for5cycles
70% U
T
(30% dip in U
T
)
for 25 cycles
<5% U
T
(>95% dip in U
T
)
for 5 s
3A/m
NOTE U
T
is the a.c. mains voltage prior to application of the test level.
Table 2 Guidance and MANUFACTURER’s declaration – electromagnetic
IMMUNITY – for all ME EQUIPMENT and ME SYSTEMS
IEC 60601 test level Compliance level
Electrostatic
discharge (ESD)
IEC 61000-4-2
Electromagnetic
environment - guidance
Floors should be wood,
concrete or ceramic tile. If
floors are covered with
synthetic material, the
relative humidity should be
at least 30%.
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
3A/m
Power frequency
(50/60Hz)
magnetic field
IEC 61000-4-8
Voltage dips,
short interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Electrical fast
transient/burst
IEC 61000-4-4
Surge IEC
61000-4-5
The device is intended for use in the electromagnetic environment specified below.
The customer or the user of the device should assure that it is used in such an
environment
±1 kV for
input/output lines
Not applicable
Not applicable
Mains power quality should
be that of a typical
commercial or hospital
environment.
Mains power quality should
be that of a typical
commercial or hospital
environment.
Mains power quality should
be that of a typical
commercial or hospital
environment. If the user of
the device requires
continued operation during
power mains interruptions,
it is recommended that the
device be powered from an
uninterruptible power supply
or a battery.

2322
Table 4 Guidance and MANUFACTURER’s declaration – electromagnetic IMMUNITY –
for ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
Guidance and manufacturer’s declaration – electromagnetic immunity
IMMUNITY test
Not applicable
3 V/m
Compliance
level
IEC 60601
TEST LEVEL
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2.5 GHz
3 Vrms
150 kHz to
80 MHz
Electromagnetic environment -
guidance
Portable and mobile RF communications
equipment should be used no closer to
any part of the device, including
cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of
the transmitter.
Recommended separation distance
The device is intended for use in the electromagnetic environment specified below.
The customer or the user of the device should assure that it is used in such an environment.
where P is the maximum output power
rating of the transmitter in watts (W)
according to the transmitter manufacturer
and dis the recommended separation
distance in metres (m).
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey, should be
less than the compliance level in each
frequency range.
a
b
Interference may occur in the vicinity of
equipment marked with the following
symbol:
P
=d
P
=d
80 MHz to 800 MHz
P
=d 2,3
800 MHz to 2,5 GHz
1,2
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures, objects and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular / cordless) telephones
and land mobile radios, amateur radio, AM and FM radio broad-cast and TV broadcast cannot be
predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF
transmitters, an electromagnetic site survey should be considered. If the measured field strength in
the location in which the device is used exceeds the applicable RF compliance level above, the
device should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the device.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V/m.
b
1,2
150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2.5 GHz
Table 6 Recommended separation distances between portable and mobile
RF communications equipment and the ME EQUIPMENT or ME SYSTEM –
for ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
Recommended separation distances
between portable and mobile RF communications equipment and the device.
The device is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the device
can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmittters) and the
device as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum output
power of transmitter
(W)
Separation distance according to frequency of transmitter(m)
For transmitters rated at a maximum output power not listed above, the recommended
separation distance din metres (m) can be estimated using the equation applicable to
the frequency of the transmitter, where Pis the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80MHz and 800MHz, the separation distance for the higher frequency
range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation
is affected by absorption and reflection from structures, objects and people.
0.01
0.1
1
10
100
0.12 0.12
0.38
1.2
3.8
12
0.23
0.73
2.3
7.3
23
=d P
=d 1,2 2,3 P
=d
0.38
1.2
3.8
12
P
1,2