Seca 864 User manual

seca 864

Model 864 3
GB
Full certification
seca products you are purchasing not only technology matured over a century, but also
quality confirmed by authorities, the legal system and by institutes.
seca products comply with European directives, standards and national laws. With seca,
you are buying the future.
The products in these operating instructions com -
ply with German legislation governing medical
products and therefore with Directive 93/42/EEC
of the Council of the European Community which
is embodied in national laws throughout Europe .
Scales carrying this symbol are approved for medi -
cal purposes in the European Community. seca
scales with this symbol meet the stringent quality
and technical requirements placed on scales which
can be calibrated.
Scales carrying this symbol are calibrated in ac -
cordance with Precision Class III of EC Directive
90/384/EEC.
Products carrying this symbol comply with the fol -
lowing directives and standards:
1. Directive 90/384/EEC governing non-auto -
matic weighing instruments
2. Directive 93/42/EEC governing medical
devices
3. DIN EN 45501 governing metrological
aspects of non-automatic scales
seca’s professionalism has also been officially re -
cognized. The certificate from TÜV Product Ser -
vice, the body responsible for medical devices,
confirms that as a manufacturer of medical de -
vices, seca rigorously complies with stringent le -
gal requirements. seca’s quality assurance
system covers the development, production, sa -
les and service of medical scales and measuring
systems and ergometry.
seca helps the environment.
We are concerned to save natural resources. We
therefore strive to save pakkaging material where
meaningful. What is left over can conveniently be
disposed of locally via the German Dual System
(recycling programme).
M
ISO
9001
ISO
13485

4
English
1. Congratulations!
By purchasing the seca 864 electronic
personal scale, you have acquired a high -
ly-accurate and sturdy piece of equip -
ment.
seca has been putting its experience at
the service of health for over 150 years
now, and as market leader in many coun -
tries of the world, is always setting new
standards with its innovative develop -
ments for weighing and measuring.
In accordance with national regulations, the
seca 864 electronic personal scale is used
primarily in hospitals, doctors’ surgeries
and in-patient nursing facilities . The scales
are a Class I medical product, and have
been calibrated in accordance with the
precision class III.
Weight is determined within a few sec -
onds.
In addition to the conventional determina -
tion of weight, the seca 864 also has a
function for determining body mass index.
For this purpose, height is entered on the
keypad and the body mass index associ -
ated with the weight value is output.
Limit values for load can be set for use in
orthopaedics. An alarm sounds in the
event of overload.
The scale is of a very sturdy construction
and will give you long and loyal service. It
is easy to operate and the large display is
easy to read.
2. Safety
Before using the new scale, please take a little time to read the following safety instruc-
tions.
• Follow the safety instructions in the in-
struction manual.
• Keep the operating manual and the
declaration of conformity contained
therein in a safe place.
• Do not drop the scale or subject it to
violent shocks.
•The cable between the weighing plat-
form and the case must be laid so that it
does not present a tripping hazard.
•Ensure that the cables are not crushed
and do not come into contact with hot
objects.
•When using the scale with a mains unit,
ensure that the supply cable is routed in
such a way as to exclude any type of
tripping hazard.
• Have scale serviced and re-calibrated
on a regular basis (see “Servicing/recal-
ibration” on page 14).
• Have repairs carried out exclusively by
authorised persons.
•Use only the type of battery stated (see
“Changing the batteries” on page 14).
• If the scale is used to monitor strain in
orthopaedic applications, someone
should first check the correct setting of
limit values and alarm function to pre-
vent a patient inadvertently being
placed under excessive strain.

Model 864 5
GB
3. Before you start…
Unpacking
Remove the packaging and place the scale on a firm, level surface.
The scope of supply includes:
• Weighing platform with handle
• Display part with connecting cable
• Wall bracket
• Desk-top stand
• 2 Screws
• 2 Rawlplugs
• Battery holder containing 6 mignon-
type AA 1.5 V batteries
• 1 set of operating instructions
Desk-top stand
–Position the desk-top stand on the dis-
play casing from underneath.
The broad side must be located at the
top of the display. The desk-top stand
locks in position.
–Place the display casing on a desk-top.
Wall bracket
–Place the desk-top stand on the display
casing from underneath.
The narrow side must be located at the
top of the display. The desk-top stand
locks in position (1).
–Fit the wall bracket to the wall at the
desired height.
–Push the display casing onto the wall
bracket (2).

6
Power supply
The scale is powered exclusively by batteries.
The LC display has a low power consumption – 16.000 weighing operations can be per-
formed with one set of batteries. Once battery voltage is no longer adequate, the battery
symbol first appears in the display to indicate that battery power is dropping.
–Carefully turn over the scale so that the
base of the scale is accessible.
–Push the battery compartment closure
towards “Battery” and open the cover.
–Connect the cable to the holder and
batteries.
–Place the holder in the battery compart-
ment.
–Close the cover and then turn the scale
back up the right way.
Connecting the connecting cable to the weighing platform
The connecting cable of the display part is used to transmit digital data which are consid-
erably less sensitive to interference than the otherwise conventional small analog meas-
uring signals. Ageing and wear on the cable and on the plug contacts thus have no effect
on the accuracy of the scale.
To make the connection, proceed as outlined below:
–Connect the cable of the display case to
the socket under the carrying handle.
–Make a loop in the connecting cable
and clamp it in the slacking device on
the underneath of the scale.
– Then place the scale upright again.

Model 864 7
GB
4. Setting up and aligning the scale
– Place the scale on a level surface.
–Undo the locknuts using the four foot
screws (1).
–Align the scale by undoing the foot
screws. The air bubble in the spirit level
must be right in the centre of the
circle (2).
– Then re-tighten the locknuts (3).
–Ensure that only the feet of the scale are
in contact with the floor. The scale may
not be in contact at any other point.
Important!
The alignment of the base of the scale must be checked and corrected if neces-
sary every time the location of the scale is changed.
1.
2.
3.

8
5. Operation
Controls and displays
The controls and display are in a casing separate from the scale. This casing is connected
to the weighing platform by a 2.7-metre cable.
Switch scale on and off
press briefly sset display to zero, activate/deactivate tare function
in function menu sincrease value, scroll
press briefly sactivate hold function
in function menu sdecrease value, scroll
Menu selection, Confirmation, Parameter adjustment

Model 864 9
GB
Correct weighing
–Press the Start key with no load on the
scale.
se(a, 8.8.8.8.8. and 0.0 appear consec-
utively in the display. The scale is then
automatically set to zero and ready to
use.
– Stand on the scale and keep still.
–Read the weighing result off the digital
display.
–If a load greater than 200 kg is placed
on the scale, St0P appears in the dis-
play.
–To switch off the scale, press the Start
key again.
Checking that the contents of the calibration counter are correct
This seca scale is calibrated. Calibration may be performed only by authorised centres.
To ensure this, the scale is fitted with a calibration counter which records any change to
data relevant to calibration. If you want to check whether the scale is properly calibrated,
proceed as follows:
– If necessary, switch off the scale.
–Keep any key depressed and start the
scale.
The current contents of the calibration
counter are shown on the display for a
few seconds.
–Compare the output contents of the cal-
ibration counter with the number shown
on the calibration counter sticker.
For valid calibration, both numbers must
match. If sticker and calibration counter
do not match, then re-calibration is re-
quired. Contact your service agent or
seca Customer Service.
If a supplementary calibration is necessary,
then the supplementary calibration mark il-
lustrated opposite is used to record the
calibration counter position instead of the
seca calibration mark shown above. This
mark is secured with an additional seal by
the person authorised to perform the sup-
plementary calibration. The supplementary
calibration mark is available from seca
Customer Service under the number
14-05-01-886.
Both numbers must match.

10
Automatic switch-off/economy mode
The scale switches off automatically after 3 minutes.
Taring weight display (TARE)
Proceed as follows:
–Press the Start key with no load on the
scale.
–First stand on the scales yourself with-
out the additional weight and activate
the Tare function by pressing the TARE
key.
The display is reset to zero, 0.0 flashes
in the display until weight is detected to
be stable. Only then is the Tare function
fully activated. The note “NET” appears.
–Now take the additional load onto the
scale. You can leave the scale to do so,
in which case ---- appears.
The scale determines the weight of the
additional load. You can now perform
as many weighing operations as you
like.
–Press the key again to deactivate the
Tare function; the scale is then back in
normal weighing mode and the tare val-
ue has been erased.
–The tare value is likewise erased by the
scale being switched off.
Store weight value (HOLD)
You can also continue displaying the weight determined once the load has been removed.
This makes it possible to look after a patient first, before having to note the weight:
–Press the HOLD key whilst the load is
on the scale.
“HOLD” appears in the digital display. The
display starts to flash, showing that the
scale is checking the stability of the weight
values. Only once stability prevails is the
displayed value stored. The value is stored
until the scale switches off automatically.
The triangle with the exclamation mark in-
dicates that this frozen display is an addi-
tional facility which is not subject to
calibration.