Please note that this equipment generates, uses and can radiate radio frequency
energy. This equipment has been tested and has been found to comply with the
limits of a Class A computing device pursuant to Subpart J of Part 15 of FCC rules.
These rules are designed to provide reasonable protection against interference
when equipment is operated in a commercial environment. If this unit is operated in
a residential area it might cause some interference and under these circumstances
the user would be required to take, at his own expense, whatever measures are
necessary to eliminate the interference.
(FCC = Federal Communications Commission in the U.S.A.)
Classification of protection provided by enclosures
The equipment is designed to comply with the IP Code of IEC 60529.
The “IP69K” is explained as follows:
“IP” International Protection.
“6” Against ingress of solid foreign objects.
Dust-tight. No ingress of dust.
“9K”Against ingress of water with harmful effects.
High pressure water jets directed against the enclosure from any direction
shall have no harmful effects. (DIN40050 Part 9)
3
2. INTRODUCTION
This manual describes how the SW Series Super Wash Down Scales work and how to
get the most out of them in terms of performance. Please read this manual completely
before using the scale.
3. FEATURES
The SW Series Super Wash Down Scales have the following features:
Dust-tight and water-tight construction, complying with IP69K.
The weighing platforms and weighing pans are made of stainless steel (SUS304).
The weighing platforms are designed for easy cleaningand not to collect dust.
Three sizes of weighing platform are available.
Employing touch-sensitive switches enabled the display to be covered with a plastic
sheet, resulting in better dust-tight and water-tight performance.
When a switch is touched, the corresponding LED, above that switch, turns on to
indicated that the switch has been touched.
A bright LED display, with a broad viewing angle.
Three types of weight display resolution are available to cover various applications,
1/3,000, 1/6,000 (1/7,500 for some models) and 1/12,000 (or 1/15,000 for some
models). (To be selected in the function settings.)
The counting mode easily counts the number of objects of the same weight.
The comparator mode compares the displayed value (weight value) with the
previously set comparator values and indicates the results by the large and bright
LED display. Five-level and three-level comparators are available.
The optional comparator relay output (OP-03) can output the results as a relay
signal.
Available weighing units are kg (kilogram), g (gram), Ib (pound), oz (ounce), Ib-oz
(pound and ounce) and pcs (pieces for the counting mode).
The optional RS-232C serial interface (OP-03) or optional RS-422/485 serial
interface (OP-04) can transmit the weight value to a printer or personal computer.
The optional sealed lead acid (SAL) battery (OP-02) can be installed, allowing the
scale to be used where an AC power source is not available.
4
4. PRECAUTIONS
4.1. Installing the scale
Caution
• Ground the scale so that the user will not be subject to an electric shock.
• Do not handle the AC power cable with wet hands.
• The AC plug is not water-resistant. Use an electrical outlet located at a place
where the plug will not get wet.
• Do not handle the cables carelessly.
• Do not install the scale where flammable or corrosive gas is present.
Consider the following conditions to get the most from your scale.
Install the scale where the temperature and relative humidity are stable, with no drafts
or vibration.
Install the scale on a solid and level surface.
Do not install the scale in direct sunlight.
Do not install the scale near heaters or air conditioners.
Do not install the scale near equipment which produces magnetic fields.
Do not install the scale in a place where it is possible to be charged with static
electricity, or where the relative humidity is lower than 45% RH. Insulators such as
plastic are often charged with static electricity.
Use a stable power source.
Calibrate the scale before use or after having moved it to another location.
In addition, calibrate it periodically to maintain the accuracy.
(Refer to “11. CALIBRATION”).
4.2. Operating the scale
Periodically ensure that the scale weighs correctly.
Calibrate the scale periodically to maintain the weighing accuracy (Refer to “11.
CALIBRATION”).
Do not place anything on the pan that is beyond the weighing capacity.
Do not apply a shock load to the scale.
Touch the switches only with a finger.
Confirm zero before each weighing to prevent possible error.
4.3. Cleaning the scale
Do not disassemble the scale.
Do not use solvents to clean the scale.
The scale can be washed with water completely.
5
5. UNPACKING
When unpacking, check whether all of the following items are included:
Instruction manual
SW series scale
The scale components are different depending on the type of scale.
With a display pole (no display stand)
With a display stand (no display pole)
With no display pole or display stand
6
6. DESCRIPTION OF EACH PART
Display
Weighing pan
AC power cable
Spirit level
Display pole
Pole support foot
(The above illustration is
for scales with a display pole.)
Leveling foot
Display rear side
Display knobs
Display stand
(The above illustration is (The above illustration is
for scales with a display pole.) scales with a display stand.)
Display knobs
7
6.1. Display and symbols
Display
STABLE indicator
NET indicator
ZERO indicator
ON/OFF switch
AMPLE switch
Symbols
LED display
ON/OFF
PRINT switch
STABLE
NET
ZERO
LOOKH I
PRINT
SAMPLE
UNITS
UNITS switch
pcs
g
kg
oz
lb
TARE
ZERO
ZERO switch
Weighing
units
TARE switch
Symbol Description
STABLE ○
NET ○
ZERO ○
Weighing units
Turns on when the weight value is stable.
Turns on when the NET weight is displayed.
(The tare operation is in progress.)
Turns on when zero is displayed.
Turns on when the comparator results are displayed.
“pcs”, “g”, “kg”, “oz” and “lb” are available.
A selected unit turns on.
8
6.2. Switches
The switches are touch-sensitive. Three levels of switch sensitivity are available and
can be set in the function setting “key“. When set to “key 2 “ (High), the switches
can be operated with a gloved finger.
Switch Description
ON/OFF switch
Turns the power ON or OFF.
When turned ON, the scale will be automatically set to zero (power-on zero).
To turn the power OFF, press and hold the switch.
Note: If pressing the switch does not turn the power ON immediately, keep
pressing the switch.
SAMPLE switch
In the counting mode (“pcs”), goes to the unit weight storing mode.
Press and hold to go to the comparator value setting mode.
PRINT switch
Outputs the weight value to the printer.
In the setting mode, this switch is used to increase the value of the selected
blinking digit by one.
UNITS switch
Switches the weighing unit.
In the setting mode, this switch is used to shift the blinking digit to the right.
ZERO switch
Zeroes the scale and sets the display to zero. (See below.)
TARE switch
Subtracts the tare (container) weight placed on the weighing pan. (See below.)
In the setting mode, this switch is used to store the setting value and proceed
to the next step.
The ZERO switch will zero the scale if the weight value is within ±2% of the
weighing capacity (kg) around the power-on zero point. The ZERO indicator
turns on. (ZERO operation)
The TARE switch will tare the scale and subtract the weight to zero as a tare
weight when the weight is a plus stable value. In this case the ZERO and NET
indicators turn on. (TARE operation)
When the tare is removed while the tare operation is in progress and the scale
returns to the zero point, the ZERO and NET indicators turn on. In this case
the displayed tare value will be negative.
(Note: In some countries or areas,the ZERO indicator will not turn on
during the TARE operation.)
When the tare is removed while the TARE operation is in progress and the ZERO
operation described above is performed, the tare operation previously done is
cleared and the NET indicator turns off.
(Note: In some countries or areas, after the ZERO operation, the TARE
operation will not be cleared without pressing the TARE switch.)
9
7. SETTING UP
7.1. Attaching the display pole to the base
SW-M / L series with a display pole
1. Remove the weighing pan from the
base.
2. Remove the 4 screws from the lower
part of the display pole.
3. Insert the display pole under the base
while pulling out the cable into the base
and align the cable opening positions of
the pole and the base. (See “3” in the
illustration.)
Do not pull the cable forcibly.
Take care not to pinch the cable
between the pole and the base.
4. Align the screw holes of the pole and
the base. Using the 4 screws removed
at step 2 to secure the display pole to
the base firmly.
5. Lay the base on its side.
Remove the 4 screws (“5” in the illustration)
and remove the pole support foot.
6. Pull the excess cable out of the base.
(See “6” in the illustration.)
Take care not to damage the cable.
And make sure the cable has no
slack.
7. Pull the cable out to the pole side.
(See “7” in the illustration.)
8. Put the bundle of cable back into the
display pole. (See “8” in the illustration.)
9. Using the 4 screws removed at step 5,
secure the pole support foot to the
display pole.
10. Return the base to the upright position and
place the weighing pan on the base.
Base, seen
from above
Pole support foot
Base
Cable
5
5
Cable
Display pole
Bundle
2
Lower part of
the display pole
4
3. Pull out the cable
3. Insert
Lower part of
the display pole
6
7
9
8
9
10
7.2. Installing the scale
1. Select the place for installing the scale. Refer to “4. PRECAUTIONS”.
2. Adjust the level of the base, using the
spirit level and leveling feet. Confirm
that the bubble is in the center of the
level.
SW type with a display pole has an
extra foot at the bottom of the pole.
Adjust this foot to touch the floor after
adjusting the level of the base.
3. Adjust the display angle as follows.
Type with a display pole
(1) Rotate the two display knobs
located on the display rear to
remove them.
(2) Tilt the display to an appropriate
angle, 0°, 30°, 60° or 90°.
(3) Attach the two display knobs and
secure them firmly.
Type with a display stand
(1) Loosen the two display knobs
located on the sides of the display.
(2) Tilt the display to an appropriate
angle. (Free setting angle)
(3) Tighten the two display knobs.
4. Confirm that nothing is touching the switches
and connect the AC power cable to an
electrical outlet.
Display
Display
Spirit level
The size and shape
depends on the scale model.
Leveling foot
Display knobs
Display knobs
11
8. BASIC OPERATION
8.1. Turning the power ON and OFF
1. Press the ON/OFF switch to turn the power ON.
All the display symbols appear and the scale waits for the weight value to become
stable.
When the optional sealed lead acid (SLA) battery (OP-02) is used:
After all the display symbols appear, the battery capacity status is displayed for
about 1.5 seconds as shown below.
Level Display Battery capacity status
1
2
3
4
At level 3, prepare to recharge the battery.
At level 4, recharge the battery immediately. (Refer to “13.1. Using the OP-02
SLA battery”.)
After the weight value internally becomes stable, the display turns off for a moment,
and then, zero is displayed along with the ZERO indicator (power-on zero).
If the weight value is unstable, “------” is displayed. Check if anything touches
the weighing pan, or if there is a strong draft or vibration. Eliminate the cause of the
error.
The range for power-on zero is within ±50% of the weighing capacity (kg) around
the calibrated zero point.
If the power is turned ON while there is a load beyond this range, “------” is
displayed. Remove the load from the weighing pan.
If the scale is to be turned ON with some item loaded, performing a zero calibration
with the item loaded will allow the scale to turn ON that way. (Refer to “11.
CALIBRATION”.) In this case, make sure that the total weight of the item loaded at
power-on and the object to be weighed is within the weighing capacity.
2. Press and hold the ON/OFF switch to turn the power OFF.
Auto power-off function
The auto power-off function automatically turns the power OFF, if zero is displayed
for approximately 5 minutes.
Refer to “12.3. Function list” to set “poff”.
“bat ooo”
“bat _oo”
“bat __o”
“bat ___”
Full capacity
No capacity (Low battery)
12
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