Tanita 4521 User Manual

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Push “ON” button

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stepping on scale

WEIGHT

Model 4521
Portable Wheelchair Scale

Cautions and Warnings ......................................................1

Assembly Instructions ........................................................2

Before Assembly
Assembling the Portable Wheelchair Scale
Leveling Platform

Battery Charging ..................................................................3

Charging the Battery

Product Description ............................................................3

Control Panel Box
Special Features
Specifications

Operating Instructions ........................................................4

As a Wheelchair Scale
As a Chair Scale

Care and Maintenance ........................................................5

Cleaning
Calibration

Troubleshooting Guide ........................................................6

Parts Lists ............................................................................7

Warranty................................................................................9

OPERATOR’S MANUAL

T

anita Corporation’s line of electronic scales uses the most

sophisticated microprocessor technology available. Each precision
instrument is designed to provide accurate, reliable and repeatable weight
measurements, as well as many other features that make the weighing
process simple, fast and convenient.

This operation manual contains instructions for use. In order to achieve
satisfactory results, the operator must read this manual thoroughly before
using this scale. If questions arise regarding this scale or its use, please
contact Tanita Corporation of America, Inc.

CAUTIONS AND WARNINGS

Cautions

• To ensure proper operation of the 4521 Wheelchair Scale, this operator’s manual

should be read carefully before operation. Keep this manual available for future
reference, and also for use in the orientation of new personnel.

• Use only the appropriate connecting cable designed specifically for use with this

monitor. If the cabling provided with this unit becomes cracked or damaged, it should
be repaired or replaced immediately.

• If the scale becomes damaged, it should not be operated until properly serviced. All

repairs should only be performed by authorized Tanita Corporation service personnel.

• Scales are designed for static weighing of patients only. No scale should be used for

patient transfer. Tanita Corporation assumes no responsibility for patient injury
or scale damage should this caution be ignored.

• Do not leave patients unattended on the scale.

Warnings

Failure to comply with the following will void scale warranty:

• Do not gas sterilize or autoclave the scale.

• Do not place liquids on top of the scale read-out console.

• Do not exceed recommended weight limit of 500 lb./225 kg. for this scale.

• Scales contain delicate sensors. Do not bang into doors, elevators, etc., as damage

may result.

1

ASSEMBLY INSTRUCTIONS

Before Assembly

NOTE: Carefully inspect all cartons for shipping damage
before unpacking. If damage is found, contact your
shipper or Tanita Corporation immediately. Claims must
be filed with the shipper as soon as possible after receipt
of the damaged package.

One carton containing: Folding platform

One parts box containing: AC adaptor, four (4)

threaded feet, two (2) sheets of adhesive labels,
and two (2) elastic cords.

Another small box containing: The electronic
control panel box.

Tools Needed: None

Assembling the Portable Wheelchair Scale

1. Place the platform on the floor, in the open position.

2. Slide the locking screw over the black tabs on the

handle. Tighten securely by hand. (Fig. 1)

3. Turn scale over and thread the four leveling feet into

the threaded holes on the underside of the platform.
Tighten by hand only. DO NOT use tools to tighten the
feet or damage to the scale will result. (Fig. 2)

4. Plug the transducer cable (63826) into the matching

jack on the control box. Hand tighten the threaded
lock ring.

5. Plug the AC adapter into any grounded 110-120V AC

outlet. Plug the other end of the 3-pin adapter cable
into the matching jack on the control box. Hand tighten
the threaded lock ring.

NOTE: DO NOT over-tighten the lock rings on the
connectors.

Leveling the Platform

To level or adjust the height of the scale platform,
carefully tilt the scale and turn the leveling feet either into
or out of the platform underside.

NOTE: Adjust platform height so it does not touch floor
or carpet. An incorrect weight reading will result if the
ramp touches the floor or carpet.

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Fig. 1

Fig. 2

Locking Screw &

Carriage Bolt

64012

Handle

Attach Leveling Feet

63879

Rubber Mat

64013

Fig. 3