A&D SK-30K User Manual

1WMPD4002371

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SAFETY PRECAUTIONS

All safety messages are identified by the following the words "WARNING"
and "CAUTION". These words mean the following.

Important information to alert you to a situation

WARNING

that might cause serious injury and damage to
your property if instructions are not followed.

CAUTION

When using the SK, the following safety precautions should always be
followed.

Use only the AC adapter which comes with the scale. Other
adapter may cause damage. (AC adapter is optional.)

Internal service or adjustment to this product should be
performed by a qualified person.

Avoid installing the scale in direct sunlight, that may cause
discoloration or malfunctions.

Do not mix the type of batteries. Replace all other batteries at the
same time.

If the scale is not to be used for a long period of time, remove all
batteries from the battery compartment to avoid leakage which may
cause damage to the instrument.

Avoid overloading that could cause damage to the scale.

Avoid using the weighing pan to move the scale, as that could
cause damage to the scale.

Important information that tells how to prevent
damage to equipment.

WARNING

CAUTION

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PARTS DESCRIPTION

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PREPARATION

1. Installing batteries / Connecting the AC adapters

Batteries

When replacing batteries, be careful not to apply too much force
to the weighing pan. An excessive force could damage the scale.

AC adapter (optional)

CAUTION

Remove the battery compartment
cover and insert six batteries
(R20P/LR20/D size) into the
battery compartment, taking
extreme care that the polarities
plus and minus are observed.

Plug the AC adapter to the AC
adapter socket inside the
battery compartment.
The AC input requirement could
be 100, 120, 220, 230, or
240Volts (50/60Hz) depending
on the area where used, so
please verify that the adapter is
correct.

2. Setting up the SK

CAUTION
Avoid installing the scale in direct sunlight, that may cause
discoloration or malfunctions. Place your SK on a firm weighing
table so that the scale is level. (The scale will not perform
accurately when it is not level.)

Place the SK on the firm surface so that the sprit level shows that
the scale is leve for an accurate weighing.

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WEIGHING

Before weighing

Automatic Power-Off Function.

If the scale is left ON and the stable indicator is displayed, the
automatic power-off function turns the power off after
approximately five minutes (factory setting). To disable or enable
the function, press the [ON/OFF] key while pressing the
[RE-ZERO] key. The scale stores this setting. To verify this, press
both the [RE-ZERO] and [UNITS] keys while in the weighing mode.
(See "CALIBRATION" about the [UNITS] key.)

poff0 Function disabled poff1 Function enabled

Error Messages

e Overload

----- The scale zero is out of range
lb Low battery

Calibration May be Required Before Weighing.

Read "CALIBRATION" first and if necessary, calibrate your scale
for accurate weighing.

Weighing procedures

1. Turn on the scale.

Press the [ON/OFF] key to turn on the scale. Then the scale displays
all segments for a few seconds and then 0 will be displayed.

2. Start weighing
If you do not use a container for weighing,

Press the [RE-ZERO] key to display 0 . Verify the reading is
0 . Place objects on the weighing platform to weigh. When the

reading becomes stable, the stable indicator is displayed.

If you use a container for weighing,

Place an empty container on the platform.
Wait for the stable indicator
[RE-ZERO] key. Place the objects to be weighed in the container.
When the reading becomes stable, the stable indicator

Select the weighing unit, --- Only for the “(k)g-lb” model---

If you use the (k)g-lb model, press the [UNITS] key to select
weighing with either (k)g or lb as the unit.
Normally scales power up in lb when shipped from the factory. To
power up in (k)g, turn the scale off. Press and hold the [UNITS]
key, then press the [ON/OFF] key. The scale will start with (k)g. To
return to the original setting, repeat this instruction.

to be displayed and press the

is displayed.

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CALIBRATION

When to Calibrate

Calibration may be required when the scale is initially installed, if it is
moved a substantial distance, or in accordance with local regulations.
This is necessary because the weight of a mass in one location is
not necessarily the same in another location. Also, with time and use,
mechanical deviations can occur.

The Position of the [UNITS] key for the Calibration

The (k)g model has no [UNITS] key, but the key
for the calibration is located under the overlay.

Calibration Using a Calibration Weight

Location of the [UNITS]

Calibrate the scale with the following calibration weight.

SK-1000: 1000g ± 0.1g SK-2000: 2000g ± 0.2g
SK-5000: 5000g ± 0.5g SK-10K: 10kg ± 1g
SK-20K: 20kg ± 2g SK-30K: 30kg ± 2g

1. Enter calibration mode.

Press the [ON/OFF] key to turn the power off.
While pressing both the [RE-ZERO] and [UNITS] keys, press the
[ON/OFF] key. Then, Cal will be displayed.

2. Zero calibration

Press the [RE-ZERO] key to calibrate zero. Cal0 will be displayed.
When you have proceeded to the display other than Cal0 , press

the [ON/OFF] key to turn the power off and start over again.

Wait for the stable indicator to be displayed and press the
[RE-ZERO] key. Calf will be displayed in a few seconds. If the
zero calibration only is to be done, press the [UNITS] key. The scale
will show end and automatically return to the weighing mode.

3. Span calibration

Place the weight at the center of the platform for accurate
calibration. Wait for the stable indicator
press the [RE-ZERO] key. The scale will show end and the
scale will automatically return to the weighing mode.

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to be displayed and

Calibration by gravity compensation

If you have calibration weights at the capacity of the scale, you can
calibrate the scale with the weights instead of compensating for the
gravity acceleration.

The scale is calibrated at 9.798 m/sec
acceleration at your location is not the same, calibrate the scale by
compensating for the gravity acceleration. (See “The Value of
Gravity at Various Locations” and “World Map” and find your location
value.)

1. Enter the calibration mode.

Press the [ON/OFF] key to turn the power off. While pressing both
the [RE-ZERO] and [UNITS] keys, press the [ON/OFF] key. Then,

Cal will be displayed.

2. Select a digit to be changed.

Press the [UNITS] key. The previously set value, for example 979,8 ,
will be displayed. A digit after the comma “,” will be changed by
pressing the [RE-ZERO] key. Press the [UNITS] key to move the
comma “,” and select a digit to be changed.

3. Set the new value.

2

at the factory. If the gravity

Change the value of the gravity acceleration using the [RE-ZERO]
and [UNITS] keys.

4. Save the value in memory.

Press and hold the [UNITS] key until end is displayed. The scale
will automatically return to the weighing mode.

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SPECIFICATIONS

W

Model

Capacity

Resolution

Non-linearity ±1g ±2g ±4g ±0.01 kg ±0.02 kg ±0.04 kg
Repeatability 0.5g 1g 2g 0.005 kg 0.01 kg 0.02 kg
Span drift ±0.015% / °C TYP (5°C~35°C / 41°F~95°F)

Operating
temperature

Display 25 mm / 0.98 inches, 7 segment liquid crystal display
Display update Approximately 10 times per second
Power 6 x R20P / LR20 / “D” size batteries or AC adapter

Battery life

Platform size 230 mm (W) x 190 mm (D) / 9.05 in(W) x 7.48 in(D)
Dimensions 244 (W) x 232 (D) x 137 (H) mm / 9.61 (W) x 9.13 (D) x 5.39 (H) inches.

eight (

approximately.)
Calibration
weight

Accessories This manual
Options AC adapter

SK-1000 SK-2000 SK-5000 SK-10K SK-20K SK-30K

1000 g

2.2 lb

0.5 g

0.001 lb

2000 g

4.4 lb
1 g

0.002 lb

5000 g

11 lb

2 g

0.005 lb

10 kg

22 lb

0.005 kg

0.01 lb

20 kg

44 lb

0.01 kg

0.02 lb

30 kg

66 lb

0.02 kg

0.05 lb

-10°C~40°C / 14°F~104°F, Less than 85%RH

Approximately 600 hours with manganese type

1200 hours with alkaline cells at 20°C / 68°F

1.6 kg / 3.53 lb 1.9 kg / 4.19 lb

1000g±0.1g 2000g±0.2g 5000g±0.5g 10kg ±1g 20kg ±2g 30kg ±2g

THE VALUE OF GRAVITY AT VARIOUS LOCATIONS

Amsterdam 9.813 m/s2 Manila 9.784 m/s2
Athens 9.800 m/s2 Melbourne 9.800 m/s2
Auckland NZ 9.799 m/s
Bangkok 9.783 m/s
Birmingham 9.813 m/s
Brussels 9.811 m/s
Buenos Aires 9.797 m/s2 Ottawa 9.806 m/s2
Calcutta 9.788 m/s
CapeTown 9.796 m/s
Chicago 9.803 m/s
Copenhagen 9.815 m/s
Cyprus 9.797 m/s2 Singapore 9.781 m/s2
Djakarta 9.781 m/s2 Stockholm 9.818 m/s2
Frankfurt 9.810 m/s2 Sydney 9.797 m/s2
Glasgow 9.816 m/s2 Taichung 9.789 m/s2
Havana 9.788 m/s2 Taiwan 9.788 m/s2
Helsinki 9.819 m/s2 Taipei 9.790 m/s2
Kuwait 9.793 m/s2 Tokyo 9.798 m/s2
Lisbon 9.801 m/s2 Vancouver, BC 9.809 m/s2
London (Greenwich) 9.812 m/s
Los Angeles 9.796 m/s
Madrid 9.800 m/s2 Zurich 9.807 m/s2

2

Mexico City 9.779 m/s2

2

Milan 9.806 m/s2

2

New York 9.802 m/s2

2

Oslo 9.819 m/s2

2

Paris 9.809 m/s2

2

Rio de Janeiro 9.788 m/s2

2

Rome 9.803 m/s2

2

San Francisco 9.800 m/s2

2

Washington DC 9.801 m/s2

2

Wellington NZ 9.803 m/s2

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WORLD MAP

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R

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Telephone: [81] (3) 5391-6132 Fax: [81] (3) 5391-6148

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