seca 954

Instruction manual and guarantee

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1. Congratulations!

By purchasing the seca 954 electronicchair scale, you have acquired a highly-ac-curate and sturdy piece of equipment.seca has been putting its experience atthe service of health for over 150 yearsnow, and as market leader in many coun-tries of the world, is always setting newstandards with its innovative develop-ments for weighing and measuring.In accordance with national regulations, theseca 954 wheelchair scale with standingaid is used primarily in hospitals, doctors’surgeries and in-patient nursing facilities.The weight display can be switched be-tween kilogrammes (kg), pounds (lbs) andstones (sts). Weight is determined within afew seconds.

The seca 954 can be moved on castorsand its low power consumption combinedwith its rechargeable batteries mean it willprovide long, mobile service.The seca 954 chair scale is made for peo-ple who are not especially steady on theirfeet. To give you a safe feeling whileweighing, the chair scale has a solid tubu-lar frame and a firmly bolted seat. The free-running casters make the scale very easyto move. The wheel-locking lever, togetherwith the swiveling armrests and foot sup-ports, makes it easier to sit in safety.The scale is of a very sturdy constructionand will give you long and loyal service. Itis easy to operate and the large display iseasy 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.

• Have scale serviced on a regular basis (see “Servicing” on page 22).

• Be sure to use only the seca mains unit supplied. Before plugging the mains unit into a socket, check that the mains voltage indicated on the mains unit matches local mains voltage.

• Ensure that the cables are not crushed and do not come into contact with hot objects.

• Use only the type of battery stated (see “Spare parts and accessories” on page 23).

• Prevent the scale from rolling away ac-cidentally. Use the wheel brake when the patient is sitting down or getting up and assist people who are unsteady on their feet.

• 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.

Model 954 15GB

3. Before you start…

UnpackingThe scope of supply includes:

• Chair scale comes complete or partly assembled• 1 seca mains unit• 1 set of operating instructions

AssemblingThis chair scale is available either fully or partly assembled. To assemble the partly-assem-bled model, please proceed as follows:– locate the handles on the journals pro-

vided and bolt in place using the twoM6 x 16 bolts, following the diagrams.

– Thread the mounting bolts for the dis-play unit through the bores provided inthe handles and screw the display tight-ly in place using two M4 nuts.

– Attach the weighing cell cable using theenclosed plastic cable clip by pushingthis into the bores on the handles.

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– Fit the seat to the frame using the fourself-tapping plastic screws. Check thatthe seat is screwed tightly to the framewith no play at all.

– Push the hinge bolts for the armreststhrough the hinge bushes on the seatframe. Put on the washer and cap nut(M10) and screw them tight.

Power supplyThe scale is powered by a mains unit and by rechargeable batteries.Connecting the rechargeable battery pack– Open the battery compartment in the

base of the display housing.– Connect the plug contacts to the re-

chargeable battery pack located in thebattery compartment.

– Close the lid of the battery compart-ment again.

The LC display and the evaluation electronics have a low power consumption – 1,000weighing operations can be performed with a fully charged battery.Once battery voltage is no longer adequate, the battery symbol first appears inthe display to indicate that battery power is dropping.If the batteries are not charged, battery voltage will ultimately not be adequate for error-free measuring. In this case, bAtt appears in the display and weighing is no longer pos-sible.

Model 954 17GB

The rechargeable batteries are charged bythe mains unit supplied. For this purpose,the mains unit needs to be connected tothe mains for at least 24 hours.

4. Operation

Controls and displaysControls on the display.

Switch scale on and off

press briefly s switch between kg and lbs hold down s switch between kg and sts

in function menu s increase value

press briefly s activate hold function hold down s set display to zero, activate/deactivate tare function

in function menu s decrease value

Activating the BMI function, Confirmation

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Other controlsThe armrests on the chair scale can be swivelled backwards independently. This is usefulbecause it makes it easier for the person being weighed to sit down. – Ensure that you do not trap any part of

the body or pieces of clothing whenfolding the rests down.

– The rear casters can be locked if youpush down the two locking levers onthe casters. This device should be usedwhen the patient is sitting down on thescale or getting up from it.

– Once the person who is to be weighedis seated, the foot-rests are pulled outand tilted downwards. The patient cannow place his or her feet on the foot-rests.

Correct weighing– Press the Start key.

se(a, 8.8.8.8.8. and 0.0 appear consec-utively in the display. The scale is thenautomatically set to zero and ready touse.

– If necessary, switch the weight display(see page 19).

– Get the patient to sit on the scale.– The patient’s weight can only be deter-

mined once he or she is no longer incontact with the floor. Be sure, there-fore, that the patient’s feet are on thefoot rest throughout the weighing oper-ation.

Locking lever

Model 954 19GB

– Read the weighing result off the digitaldisplay.

– If a load greater than 200 kg or 440 lbsis placed on the scale, St0P appears inthe display.

– To switch off the scale, press the Startkey again.

Switching the weight display The weight display can be switched between kilogrammes (kg) and pounds (lbs) or be-tween kilogrammes (kg) and stones (sts). – Switch on the scale using the green

Start key. Weight is initially displayed inthe last setting selected.

– To switch the weight display betweenkilogrammes and pounds, press the kg/lbs/sts key.

– The kg or lbs display lights up.

– To switch weight display betweenpounds and stones, hold down thekg/lbs/sts key for approx. 2 seconds.The lbs or sts display lights up.

Automatic switch-off/economy modeThe scale switches off automatically after 5 minutes.

Taring weight display (TARE) The Tare function is very useful if an additional weight (a blanket, for example) is to be ig-nored for weighing purposes.Proceed as follows:– Press the green Start key.

– First place the additional weight (e.g. ablanket) on the scale and activate theTare function by pressing and holdingthe HOLD/TARE key. The display is reset to zero. 0.0 appearsin the display. The note “NET” appears.

– Now put the patient and the additionalweight on the scale.The scales calculate the patient’sweight without the additional weight.You can now perform as many weigh-ing operations as you like.

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– Hold the key down again to deactivatethe Tare function; the scale is then backin normal weighing mode and the tarevalue has been erased.

– The tare value is likewise erased by thescale 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/TARE key whilst the

load is on the scale.

“HOLD” appears in the digital display. Thevalue is stored until the scale switches offautomatically.– The HOLD function can be switched off

by pressing the HOLD key again.0.0 appears in the display if the scale hasno load on it, otherwise the current weight.The “HOLD“ display vanishes.

Note:The HOLD and TARE functions can also be used simultaneously.

Body Mass Index (BMI)Body Mass Index puts height and weight in relationship to one another, providing moreaccurate information than ideal Broca weight, for example. A tolerance range is givenwhich is considered ideal for health. The Body Mass Index applies only to adults: thesevalues are not relevant to children and young people.– Press the Start key.

se(a, 8.8.8.8.8. and 0.0 appear con-secutively in the display. The scale isthen automatically set to zero and readyfor operation.

– Press the FUNC key. On the display, you will see the lastheight entered.

– You can use the arrow keys to adjustthe value in increments according to thegraduations displayed.

– Once the correct value is set, press theFUNC key again. The BMI function isnow activated.

– Get the patient to sit on the scale.– Read off the BMI on the digital display

and compare it with the categories onpage 21.

Model 954 21GB

– Press an arrow key if you would like tosee the weight briefly.

– To return to normal weighing mode,press the FUNC key.

– To switch off the scale, press the Startkey again.

Evaluating Body Mass Index:Compare the value determined with the categories shown below.

• BMI below 18:Warning, this patient weighs too little. There could be a tendency to anorexia. An in-crease in weight is recommended to improve well-being and performance. If in doubt,consult a specialist.

• BMI between 18 and 20:Patient is at lower weight limit. If he feels well and is completely healthy, his weight canstay as it is.

• BMI between 20 and 25:The patient is of a normal weight. He can stay as he his.

• BMI between 25 and 30:The patient is slightly to moderately overweight. He should cut his weight if he is al-ready ill (e.g. diabetes, hypertension, gout, fat metabolism disorders).

• BMI over 30:Weight reduction is essential. Metabolism, cardiovascular system and bones are all un-der strain. A consistent diet, plenty of movement and behavioural training are all rec-ommended. If in doubt, consult a specialist.

5. Cleaning

Clean the seat and the housing as required using a domestic cleaning agent or commer-cially-available disinfectant. Follow the manufacturer’s instructions.Under no circumstances use abrasive or acid cleaners, white spirit, benzene or the like forcleaning. Such substances can damage the high-quality surfaces.

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6. What do I do if…

… no weight display comes on?– Is the scale switched on?– Check the mains connection and the connection of the battery pack.– Switch the scale off for a few seconds. This can be done by opening the plug connect-

ed to the rechargeable battery block and unplugging the mains supply from the scale.

… 0.0 does not appear before weighing?– Switch off the scale with the Start key and start the scale again – there must not be

any load on the scale – and only its feet should be in contact with the floor.

… one segment is illuminated constantly or not at all?– The relevant segment has a fault. Inform Servicing.

… the display shows ?– Battery voltage is dropping. Charge the rechargeable batteries in the next few days.

… batt appears in the display?– The rechargeable battery is so severely discharged that weighing is no longer possible.

Recharge the battery.

… St0p appears in the display?– Maximum load has been exceeded.

… the display flashes?– If you have just activated the Hold or Tare function, please wait until the scale has de-

tected a steady weight value. The display will then stop flashing.– If there has been no activation of a function beforehand, remove the load from the scale

and wait until 0.0 is displayed, then weigh again.

… the display appears?– The ambient temperature of the scale is too high or too low. Place the scale in an

ambient temperature between +10 °C and +40 °C. Wait about 15 minutes for thescale to adapt to the ambient temperature and then weigh again.

… the display E and a number appear?– Switch off the scale with the Start key and start the scale again. The scale will then

work normally again. If this is not the case, disconnect the power supply by briefly removing the batteries. Ifthis measure is equally unsuccessful, inform the Service department.

7. Servicing

Your seca scale leaves the factory with an accuracy greater than ± 0.1 %. To ensure thatthis accuracy is maintained, the product must be carefully set up and regularly maintained.Depending on the frequency of use, we recommend servicing every 3 to 5 years. Pleaseensure that a qualified service agent is used. If in doubt, contact seca Customer Service forfurther information.

Model 954 23GB

8. Technical data

Maximum load 200 kg / 440 lbs / 32 stsGraduations0 up to 200 kg 100 gup to 440 lbs: 0.2 lbsDimensionsheight: 920 mmwidth: 565 mm depth: 810 mmWeight approx. 24.5 kgTemperature range +10 °C to +40 °CPower supply rechargeable batteries/mains unitPower consumption approx. 25 mAEN 60 601-1:Insulated equipment, Protection Class II:medical electrical equipment type B:Accuracy greater than ± 0.1 % / ± 100 gFunctions Switch between units, Tare, Hold, BMI

9. Spare parts and accessories

Power supplyModel dependent mains unitDescription: plug-in mains unit, Euro: 12 V / 130 mAseca spare part no.: 68-32-10-252Description: plug-in mains unit, USA: 12 V / 150 mAseca spare part no.: 68-32-10-259Description: desk-top mains unit, switchable, Euroseca spare part no.: 68- 32-10-243Plug-in mains unit Use only seca original plug-in mains units with 9 V or controlled 12 V output voltage. Com-mercially-available mains units may supply a higher voltage than stated and thus lead todamage to the scale.

Rechargeable batteries seca spare part no.: 68-21-12-721

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10. Disposal

Rechargeable batteriesDo not throw old rechargeable batteriesinto the domestic refuse! Ensure that re-chargeable batteries are properly dis-posed of at local collection points.

Disposing of the scaleIf the scale can no longer be used, the re-sponsible waste disposal association willbe glad to advise you on the measuresnecessary to dispose of it properly.

11. Warranty

A two-year warranty from date of deliveryapplies to defects attributable to poor ma-terials or workmanship. All moveable parts- batteries, cables, mains units, recharge-able batteries etc. - are excluded. Defectswhich come under warranty will be madegood for the customer at no charge onproduction of the receipt. No furtherclaims can be entertained. The costs oftransport in both directions will be borneby the customer should the equipment belocated anywhere other than the custom-er’s premises. In the event of transportdamage, claims under warranty can be

honoured only if the complete originalpackaging was used for any transport andthe scale secured and attached in thatpackaging just as it was when originallypacked. All the packaging should there-fore be retained.A claim under warranty will not be hon-oured if the equipment is opened by per-sons not expressly authorised by seca todo so.We would ask our customers abroad tocontact their local sales agent in the eventof a warranty matter.