SUESS Medizin-Technik METRONIK BL-6 User manual

METRONIK
Blood Pressure Monitor
BL-6
Instruction manual
valid for REF BL-6 1000 and REF BL-6 1100
Revision: 2018-05-22
Version: V 5.3

Instruction manual rev. 5.3 METRONIK BL-6
2 METRONIK Blood Pressure Monitor BL-6
Manufacturer and distributor in accordance with § 5 MDD on behalf of METRONIK:
SUESS Medizin-Technik GmbH
Mittelstr. 9
D-08280 Aue
GERMANY
Tel. [phone]
Fax. [phone]
CE - mark : CE 0494 Classification IIa
Quality Management System EN ISO 13485 :2012 + AC :2012
Made in Germany
METRONIK is a registered trademark of METRONIK SUESS OHG Germany. All other trademark
names are the trademarks of their respective holders.
The information in this manual is provided for guidance only, it is subject to change without notice, and
should not be construed as a commitment by the manufacturer.
This manual is not subject to any change order service.
SUESS Medizin-Technik GmbH assumes no liability for errors or inaccuracies that may appear in this
manual.
Copyright © 2008-2018 SUESS Medizin-Technik GmbH, All rights reserved.

Instruction manual rev. 5.3 METRONIK BL-6
3 METRONIK Blood Pressure Monitor BL-6
Table of contents
1. DESCRIPTION OF THE METRONIK BL-6 DEVICE ......................................................................................... 4
1.1. I NSTRUCTION FOR RESTING MEASUREMENT ............................................................................................................ 4
1.2. U SING OF COMPENSATION CHAMBER DK26 ........................................................................................................... 4
2. WARNINGS AND PRECAUTIONS ............................................................................................................... 5
2.1 L ABELS ............................................................................................................................................................. 6
2.2 H ARDWARE S ETUP ............................................................................................................................................. 6
3. METHOD .................................................................................................................................................. 7
4. PREPARATIONS FOR MEASURING ............................................................................................................
4.1 C HOICE OF CUFF SIZE ................................................................................................................................... 9
4.2 F IXING THE CUFF ......................................................................................................................................... 9
4.2.1 Positioning the microphone: ........................................................................................................... 10
4.2.2 Adjustable Cone adapts patient’s arm shape .................................................................................. 10
4.2.3 Changing the cuff co er ................................................................................................................... 10
5. TAKING THE MEASUREMENT ................................................................................................................. 12
5.1 S PECIAL FUNCTIONS .................................................................................................................................. 14
6. MAIN MENU - SELECTIONS AND SETTINGS ............................................................................................. 17
6.1. I NTRODUCTION TO OPERATION .......................................................................................................................... 17
6.2. M EASUREMENT IEW ...................................................................................................................................... 18
6.3. I NTER AL M EASUREMENT M ENU ....................................................................................................................... 19
6.4. A RCHI E M ENU .............................................................................................................................................. 21
6.5. S ETTING M ENU .............................................................................................................................................. 21
7. CLEANING OF BL-6 AND CUFF................................................................................................................. 23
. IMPORTANT HINTS ................................................................................................................................ 24
9. TECHNICAL DATA ................................................................................................................................... 25
10. DECLARATION .................................................................................................................................... 25
10.1. E QUIPMENT C LASSIFICATION ........................................................................................................................... 25
10.2. D ECLARATION OF GUARANTEE ......................................................................................................................... 25
10.3. EMC S TATEMENT ......................................................................................................................................... 25
11. BL-6 ACCESSORIES AND CUFFS ........................................................................................................... 2
12. ERROR MANAGEMENT ...................................................................................................................... 29

Instruction manual rev. 5.3 METRONIK BL-6
4 METRONIK Blood Pressure Monitor BL-6
Dear Customer,
with the BL-6 blood pressure monitor you have chosen a quality product from METRONIK made in
Germany.
We are delighted that you have shown your confidence in METRONIK quality and we thank you.
The METRONIK BL-6 device meet the valid European standard DIN EN 1060 that accounts for non-
invasive sphygmomanometers and, furthermore, they are in accordance with the Directive 93/42 EEC
dated June 14, 1993 including all valid modifications. This is certified by the CE-mark on the rear
panel of the device.
The information given in the instruction manual is prerequisite for proper device performance and
correct operation. It ensures the safety of patient and operator.
1. Description of the METRONIK BL-6 device
The blood pressure device METRONIK BL-6 is an active diagnosis device for examination of
physiological processes, as in §3 item 1 c of MDD. The intended use includes non-invasive indirect
measurement of arterial blood pressure. BL-6 is a medical device class IIa.
The blood pressure device METRONIK BL-6 is a robust device, easy to use, with very high reliability.
It is designed for most application of non-invasive blood pressure measurement.
Typical applications are
- resting and stress blood pressure measurements
- ergometric measurements while on bike, treadmill, or recumbent bike
- automatic blood pressure profiles in freely selectable intervals
The device is used to determine the systolic and diastolic values as well as the pulse rate in humans.
1.1. Instruction for resting measurement
For the resting measurement, the patient should relax at least 5 min. So that a true resting blood
pressure level of the body can be achieved.
Recommendation for resting blood pressure measurement: The patient should sit in a still position, not
cross his legs and place his feet flat on the floor. Back and arm should be supported. The middle of
the right cuff should be at the level of the right atrium.
For use with treadmill we recommend the additional pressure chamber for increase the systems
compliance. The optional software METRONIK BP-Control is helpful for comprehensibility and
documentation of measurement.
1.2. Using of compensation chamber DK26
For the treadmill examination we recommend the version REF BL-6 1100 with external pressure
chamber DK26.
It includes a larger pressure compensation chamber as a kind of dynamic balancing tank. It increases
the air volume in the system and compensates muscle movements more than our regular REF BL-6
1000. When you move your arm, your muscle presses and squeezes against the blood pressure cuff.
With this movement the cuff pressure will increase and decrease rapidly. With the REF BL-6 1100 you
have a additional pressure reservoir, this reservoir absorbs all the pressure changes caused by the
movement. So the cuff pressure remains stable during movement for better measurement.

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5 METRONIK Blood Pressure Monitor BL-6
Fig. BL-6 1100 with external pressure compensation chamber and optional Aneroid Manometer
Note:
The Aneroid Manometer in the picture is another optional upgrade.
2. Warnings and Precautions
The device must not use in areas where an explosion hazard may occur. The BL-6 blood pressure
measuring device must not be exposed to strong vibrations. Furthermore, it has to be protected from
moisture and dust.
The device must be installed in such a way that it is easy to disconnect the power line. The device can
be disconnected at any time by unplugging the power line and brought into a safe state
The device should not be operated in close proximity to electromagnetic fields, static electricity or
heating. Avoid placing the device near high frequency surgical equipment. In order to improve
audibility, avoid environmental noise.
The use of mobile phones in the vicinity can disrupt the functioning of the device.
The cuff must not attach to a limb being used for IV infusions. The cuff inflation can block the
infusion, causing harm to the patient.
For the blood pressure measurement, the cuff must briefly suppress the blood flow of a limb. A
monitoring of the pulse during the measurement is no longer possible below the cuff. The hose must
not kink to ensure proper ventilation. Too frequent measurements can lead to circulatory disorders.
The blood pressure cuff must not be placed on the arm of the side of a mastectomy in order to prevent
congestion and to not disturb the lymphatic flow.
The blood pressure measurement can be influenced by the position of the patient (lying, sitting,
standing), by physiological exertion and by the emotions of the patient.
The METRONIK BL-6 device must not used
- on neonates
- on patients known to be readily susceptible to bruising
- on patients where skin lesions are likely to occur.
- when the cuff should be applied to broken skin
The use of the blood pressure monitor METRONIK BL-6 for the monitoring of vital processes, where
physiological changes can lead to an immediate danger for the patient, is definitely excluded and does
not correspond to the usage regulation.
Due to the medical product operating appointment, the blood pressure measuring device has to be
metrological monitored and calibrated every two years. The calibration and potential reparations have
to be realized by the manufacturer, by METRONIK SUSS OHG or by METRONIK-authorized service-
partners. For the safety checks an annual interval is recommended.

Instruction manual rev. 5.3 METRONIK BL-6
6 METRONIK Blood Pressure Monitor BL-6
We additionally point out that solely METRONIK spare parts have to be used for any kind of
maintenance.
2.1 Labels
CE Approval
Note accompanying documents
Note instruction manual
Type BF applied part
Device Name
Serial Number
Manufactured By
Manufacture Year
2.2 Hardware Setup
Rear Panel:

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7 METRONIK Blood Pressure Monitor BL-6
POWER: Connect Power to 230V Mains.
Attention: In order to avoid the risk of electric shock, this device may only be connected to a supply
network with a protective earth conductor.
The COM1 is special wired. So we recommend to use original METRONIK Interface cable. The data
level meets requirements of RS232 (± 12V).
If connecting USB cable first time, the USB Driver will installed and the PC emulates a virtual COM
Port. The driver data are on the attached CD or USB stick.
The COM1 and the USB interface can be configured as independent interfaces with same or different
data protocols.
TRG IN is a BNC connector. It can be connected to analogue QRS signal or R-Peak related TTL
trigger. So the Blood Pressure Measurement can be taken ECG triggered. Note, the TRG IN is not
galvanic insulated.
Important for ECG triggered measurements: The R-peak trigger is command variable. It must be
ensured, that the ECG trigger is free of artefacts and in time with the original occurring R-peak.
CUFF connection – there are two quick couplings, microphone and air. The matching push-pull
connectors are at the end of the cuff double tube.
We emphasize that only original METRONIK parts should be used for any spare or repair.
3. Method
The functioning of METRONIK devices is based upon the method of Riva Rocci / Korotkov. The RR
method is also known as golden standard in non-invasive blood pressure measurement.
Thus, METRONIK blood pressure measurement devices operate by use of an auscultatory measuring
method via a microphone in the cuff, making it precise and considerably robust.
The original Korotkov sounds are reproduced in high quality via loudspeakers.
By simultaneously listening to the Korotkov sounds during the measurement, the applicant can also
check that the real Korotkov sound occur at the same time as the blood pressure. So he can
recognize how exact and precise the automatic measurements are.
In addition to the automatic measuring, there is a manual mode where the user marks the pressure
levels at its corresponding systole and diastole values during deflation. By pressing the START button
during deflation at time with the first occurring Korotov sound, the systolic value will be locked at this
actual cuff pressure. By pressing the START button a second time, when the sound disappeares, the
diastolic value will be locked. The system deflates and the measurement is finished. This feature is
very important for stress measurements with high load or for resting measurements with patients with
weak sounds.
The ergometry filter can be switched on to reduce interferences and pulse wave noises, which occur
regularly during stress tests. There is an integrated compensation tank for mechanical suppression of
moving artefacts.
The METRONIK BL-6 is ideally suited for stress measurements with treadmill or bicycle ergometers.
The cuff is designed as a one-tube-system, even though it contains a double tube. That means one
tube is used for apply the air into the cuff, the other tube includes the microphone cable. The
microphone is built in the bladder, so there are no interferences. Both tubes each ends with an easy to
use quick connector for plugging in the device at the rear panel.

Instruction manual rev. 5.3 METRONIK BL-6
8 METRONIK Blood Pressure Monitor BL-6
4. Preparations for measuring
Scope of delivery of the blood pressure monitor METRONIK BL-6:
•Blood Pressure Device BL-6
•Blood Pressure Cuff ZWM2940 Adult
•USB-Cable
•Device connection cable (Power cable)
•Driver CD
•User Manual
Make sure that the blood pressure monitor is in proper condition and the power cord isn’t damaged.
Connect the power cord to an available AC outlet.
Connect the cuff with air tube and microphone to the corresponding slots on the rear of the
METRONIK BL-6.
Check and maintain the cleanness of parts that have direct contact with patients.
Switch on the METRONIK BL-6 device (Power switch on the rear).

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9 METRONIK Blood Pressure Monitor BL-6
4.1Choice of cuff size
Important! Use the correct cuff-size.
The table shows all cuff types currently available for the METRONIK BL-6
Order No
Name
Size
R
ange
Design
32-10-2940 ZWM2940 Adult 29-40 cm Clamp cuff
32-10-2531 ZWM2531 Small Adult 25-31 cm Clamp cuff
32-10-5600 KM5600 Large Adult bis 56 cm Wrist cuff
In standard delivery an adult cuff ZWM2940 is included.
This cuff is suitable for upper arms with a circumference of 29 - 40 cm. For patients with smaller or
larger upper arm circumference the corresponding special sized cuff has to be used.
Size / N
ame
Upper arm
circumference
[cm]
Cuff Size
[cm]
Bladder
[cm]
Order No.
SMALL ADULT
ZWM2531
Clamp Cuff
25cm - 31cm 47cm x 13cm 24cm x 11cm 32-10-2531
ADULT
ZWM2940
Clamp Cuff
29cm – 40cm 55cm x 15cm 28cm x 13,5cm 32-10-2940
LARGE ADULT
KM5600
Wrist Cuff
Up to 56cm 71cm x 15cm 45cm x 13,5cm 32-10-5600
All cuff types are designed with PU double tube, length 2,30m, with PU bladder with built in
microphone. The cuff cover is PU coated cotton colour anthracite.
It is recommended to change the cuff covers every 6 months.
Custom designs or other cuff sizes are available upon request.
Note chapter 7 cleaning and disinfection.
4.2Fixing the cuff
Fit your patient with an appropriately sized cuff. The cuff must be completely vented before being
fixed.
You can easy measure over clothes.
Never roll up or slide shirt blouse or sweater sleeves. This can impede blood flow, and hence results
in wrong readings.
The blood pressure cuff over shirt and blouse sleeves or thin sweaters will cause no inaccuracies in
the resulting values. Pull the sleeve tight, that there are no pleats behind the microphone.
The measurement over clothes saves time and protects the cuff cover.
While placing the cuff look for a good location and a good fit of the microphone.

Instruction manual rev. 5.3 METRONIK BL-6
10 METRONIK Blood Pressure Monitor BL-6
4.2.1 Positioning the microphone:
Position of microphone marker label at the inner side of upper arm between m.Biceps and m.Triceps.
The microphone must perfectly be in contact with the body, possibly over thin sleeves. The elbow
must be completely free. There must be a two finger width clearance between elbow and the
lower edge of the cuff.
Note: the microphone must rest against the muscle!
4.2.2 Adjustable Cone adapts patient’s arm shape
The cuff is adaptable to most different upper arm shapes
cylindrical to conical
Adjustment for conical upper arms by adjusting the angle
of the D-ring in the cuff.
On the top and bottom there should be an inch of air.
4.2.3 Changing the cuff cover
microphone
fit

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11 METRONIK Blood Pressure Monitor BL-6
The cuff consists of cuff bladder (including microphone, microphone cable and connector, cuff tube
and QuickConnect), handle, strap and cuff cover.
If the sleeve cover is no longer usable as a result of contamination, material fatigue or wearing down,
it can be changed separately, the other components can still be used.
To change the sleeve cover, open the flap "adjustable cone" (see figures 1 & 2).
Fig.1: ZWM2940 Fig.2: ZWM2940 with open flap
Then pull the flap out of the clamp and open the cuff, as shown in Fig.3 hang out.
ADULT
29 - 40 c m
Made in Germany
METRONIK
ELEKTRO - MED. GERÄTE
C
O
N
E
a
d
j
u
s
t
a
b
l
e
c
o
n
e
Fig. 3: Sketch of a sleeve cover for ZWM2940
On the right, bottom side you can then open the velcro fastener. Next you can pull the cuff bladder to
the right side out of the cover and pull down the handle from the sleeve cover.
To attach a new sleeve cover you reverse this order:
First put down the cuff cover as in Fig. 3, fasten the handle from the right to the very left over the
cover. Then open the Velcro fastener on the lower right side completely and thread the cuff bladder
back into the cover in such a way that the microphone in the bladder is at the level of the marking
“microphone”. The bladder connects to the marking "Index" on the left side. The bladder should sit flat;
it must not be bent, twisted or overlapping.
If the bladder fits properly, the velcro fastener can be closed.
Finally, the flap "adjustable cone" is fastened through the handle and closed with the attached Velcro
fastener.
As described herein, a cuff cover can also be loosened and washed one at a time to clean it and then
re-attach it to the bladder.

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12 METRONIK Blood Pressure Monitor BL-6
5. Taking the measurement
MADE IN GERMANY
METRONIK
MENÜ
PROFESSIONAL
BL 6
BLOOD PRESSURE
STOP START
There are the following controls to handle the monitor:
START
STOP
UP DOWN MENU
4x Special function Soft-key titled in the bottom of display, predefined by menu.
When the blood pressure monitor is switched on, the METRONIK label will be shown for a few
seconds followed by the measurement view that indicates the functional standby of the device.
In the bottom right corner, the initial pressure is displayed. This is the pressure to which the cuff will be
inflated once the measurement is started. Standard value is 170 mmHg. Any further measurement will
start and pump up to 30mmHg above last measured systolic value. After a longer period of inactivity
(ca. 4 min) the initial value is reset to standard value.
Use the UP / Down Buttons for changing the initial pressure by increments of 10 mmHg.
UP for increasing the initial pressure value (max 300 mmHg).
DOWN for decreasing the initial pressure value mmHg (min 100 mmHg).

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13 METRONIK Blood Pressure Monitor BL-6
Start a blood pressure measurement:
By pressing the START button, a new measurement will be initiated.
The pump starts to inflate the cuff and the current cuff pressure is displayed. Status is ‘pumping’.
The pump inflates the cuff very quick. It would take only a few seconds for inflation up to 300 mmHg.
After reaching the Initial Pressure Value, the pump stops and the device switches to measurement
mode.
The bar on the rightmost side displays the predefined deflation rate. Thereby, the number of visible
points represents an approximate value of mmHg that escape per second. In order to change the
deflation velocity, use the up / down buttons.
Five points corresponds to 5 mmHg/sec
UP for faster deflation
DOWN for a slower deflation rate.
In the bottom right corner, the current cuff pressure is displayed while the cuff deflates.
In case Korotkov sounds are detected within the first seconds, the METRONIK BL-6 will start the
pump again and will further inflate the cuff to reach a peak pressure that is 30 mmHg above the
preselected initial pressure value. Afterwards, the device switches into the measurement mode again.
When the first Korotkov sound is detected, the corresponding systolic value will be displayed.
Subsequently, each additional tone updates the diastolic value while the instantaneous pulse rate will
be displayed in beats per minute.
After the last Korotkov sound has been detected, the measuring is completed and the mean pulse rate
is displayed.
deflation rate

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14 METRONIK Blood Pressure Monitor BL-6
During the measuring phase, there is the possibility for a manual measurement.
By pressing the START button for the first time during a measurement, the current pressure
will be saved as systolic value. From this moment on, the automatic measurement mode is
disabled.
By pressing the START button for the second time during a measurement, the current
pressure will be saved as diastolic value and the measurement is finished. The cuff will be
completely deflated.
By pressing STOP button the current BP reading will be aborted. The system will completely
vented and reset to measurement view.
5.1 Special functions
Measurement Mode:
With METRONIK BL-6 there are three measurement modes:
- normal: inflate, consistent deflation rate during measuring
- fast: inflate, consistent deflation up to detecting systolic value, after the fourth pulse fast
deflation to a predefined pressure value (standard value: 120mmHg), afterwards the
diastolic value will be measured.
- only systole: inflate, consistent deflation up to detecting systolic value, after the fourth pulse
the measurement is finished and the cuff is vented.
The measurement mode can be changed by a special function soft key, or in setting menu item
Automatic
Acoustic:
- original: The original genuine Korotkov sounds are reproduced in high quality via loudspeaker.
- digital: When the Korotkov sound is detected, a beep occurs.
- mute: no sound.
The kind of sound output can be changed by a special function soft key, or in setting menu item
Acoustic
Repump: (“+30mmHg”):
by pressing +30mmHg the cuff will refilled to 30 mmHg above the actual cuff pressure and a new
measurement will be initiated.
Pressing this key several times, pressure can be increased in stepa by 30 mmHg.
This function can be set by a special function soft key

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15 METRONIK Blood Pressure Monitor BL-6
Measurement profile ERGO:
Activated ERGO is displayed by the word ‘ERGO’. With activated ERGO filter the sensitivity of the
microphone amplifier will be damped.
Stress, as a result of physical activity during an application, results in a deformed pulse wave and a
changed spectral response of the Korotkov sounds. In high-load tests or situations, quiet Korotkov
sounds might eventually be audible below the diastolic pressure value. Furthermore, noise and
moving artefacts increase as well. In order to cope with these circumstances, it is recommended to
apply the specific ERGO filter. This is an additional active filter circuit that was designed for elimination
of heavy noise and an optimised filtering of Korotkov sounds. Thus, the automated measuring
becomes conspicuously more reliable. Quite noteworthy, the filter becomes effective in real time and
is clearly noticeable by the human ear. Due to its strong filtering, a measurement at rest in
combination with an active ERGO filter is not reasonable.
A resting measurement with activated ERGO can cause wrong readings.
Measurement profile SENS:
Activated SENS is displayed by the word ‘SENS’. With this profile the sensitivity of the microphone
amplifier will be increased.
In sensitivity mode (SENS), the METRONIK BL-6 is considerably more susceptible to all kind of
sounds that might occur during the application. Hence, even fairly quiet Korotkov sounds can be
measured automatically. But on the other side, the measurement is also more susceptible to noise.
A stress measurement with activated SENS will cause wrong readings.
SEQUENCE: Blood pressure measurement during stress examination
automated ERGO mode – recommended for stress examination
The measurement profile SEQUENCE means, that the ERGO filter is automatically switched during
stress test.
Begin a stress examination:
1st BP reading: Resting measurement, normal measurement
2nd BP reading: starting load, normal measurement
from the 3rd BP reading: now the body is stressed, ERGO measurement
each further BP stress measurement, ERGO measurement
After stress period
1st recovery measurement, body is still stressed ERGO measurement
2nd recovery measurement, ERGO measurement
from 3rd recovery measurement, back at rest normal measurement
Sequence standard settings:
- from the 3rd measurement ERGO is switched on
- after 3:20 (min:sec) inactivity the device will reset
The number of the beginning resting measurements (factory setting: 2) and the idle time (factory
setting: 3:20) can be changed by using service software METRONIK BP Control.

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16 METRONIK Blood Pressure Monitor BL-6
Blood Pressure Measurement with SEQUENCE:
start examination: body still in resting situation body in stress situation
1. measurement 2. measurement 3. measurement
resting measurement resting measurement stress measurement
profile Normal profile Normal profile ERGO
Directly after the stress period the ERGO will always remain active, because the patient is still in
stress situation. With approximately the 3
rd
recovery measurement could be reset in normal mode. It
depends on patient’s fitness level and intensity of stress load.
Switch on / off the Sequence on METRONIK BL-6 device:
Setting Menu – Automatic – Sequence [active / inactive]
How can be recognized, that Sequence is active?
If Sequence is activated, in METRONIK BL-6 Measurement View: „Status: ready (Seq.)“
If Sequence is inactive, in METRONIK BL-6 Measurement View: „Status: ready“
Sequence will reset by expiration of preset idle time, by pressing Reset (Softkey) or by pressing the
STOP Button.
Reset:
The function Reset will restore the standard settings. The initial pressure value, the deflation rate and
the measurement profile will be reset. A sequence cycle will be interrupted.

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17 METRONIK Blood Pressure Monitor BL-6
6. Main menu - selections and settings
6.1. Introduction to operation
By pressing these Button, one can browse through the various menu items.
By pressing the STOP button, the user will always return to the measurement view.
Measurement View
Interval Measurement
Archive
Settings
Date / Time View

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6.2. Measurement View
In the bottom right corner, the initial pressure is displayed. This is the pressure to which the cuff will be
inflated once the measurement is started.
Use the UP / Down Buttons for changing the initial pressure by increments of 10 mmHg.
UP: the initial pressure is incremented by 10 mmHg.
DOWN: the initial pressure is decremented by 10 mmHg.
The standard setting of the initial pressure is 170mmHg. This preset can be changed by service
software BPControl.
By pressing the STOP button, one can manually switch between the date/time view and the
measurement view.
After three minutes of inactivity, the display change to the date/time view where the actual date and
time is depicted. Nevertheless, the BL-6 is still in standby, and thus ready for measurements, i.e., all
controls remain active and enabled. By using one of the controls, the measurement view will be
displayed again and the command is executed.
By pressing the START button, a new measurement will be initiated (see chapter 5).

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19 METRONIK Blood Pressure Monitor BL-6
6.3. Interval Measurement Menu
With interval measurement the device can start automatically in time intervals. So BP readings can be
done synchronized to the examination order without the need of connection to an external PC.
Interval measurement / measurement delay
There are two modes:
•constant interval
•constant delay.
With special function softkey ‘Mode’ it can be switched between interval and delay.
Constant delay: the device is waiting a constant time period between the measurements
BP START BP END measurement pause (adjustable) BP START
Constant interval: next measurement starts at fixed intervals
BP START interval (adjustable) BP START
The constant interval is useful in combination with stress step protocol, typically with BP readings
every two minutes.
The constant interval mode is useful for automated stand alone measurements during stress steps,
typically with BP readings every two minutes.
On the other hand, the constant delay mode is useful fixed regeneration time period between resting
measurements for recordings of blood pressure profiles and for monitoring the recovery of vessels
within definite times.
Select incremental step
With second special function softkey the incremental step can be selected. 15 sec, 30 sec, 1min or 2
min can be chosen.
If pressed this key, next key press will choose one of the four step values. For abort the function,
press STOP key.
/ Use the UP / Down Buttons in order to change the interval time in predefined steps,
f.e. +/- 30 seconds

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20 METRONIK Blood Pressure Monitor BL-6
Select interval period by preset
With third special function softkey a time period preset can be choosen. This makes it easier to jump
to much smaller or much longer intervals. If pressed this key, next key press will choose one of the
four preset values. For abort the function, press STOP key.
Start interval measurement
With fourth special function softkey it can be selected, whether the first interval measurement will start
immediately or after the first countdown.
Press the START button to begin an interval measurement.
Press the STOP button to terminate the interval measurement.