Gravity Measurement SWB7 User Manual

WEIGHING SCALE user manual

Please read this manual carefully before operation

----Important safety info

----Warranty

Model: SWB7

GRAVITY MEASUREMENT, INC.

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Important Safety Information

READ ALL INSTRUCTIONS BEFORE USING SCALES TO ENSURE MAXIMUM
SAFETY, BEST PERFORMANCE, AND TO GAIN KNOWLEDGE OF OUR SCALE,
IT IS ESSENTIAL THAT YOU OR ANY OTHER OPERATOR OF THE SCALE READ
AND UNDERSTAND THE CONTENTS OF THIS MANUAL BEFORE OPERATING
THE DEVICE.

When using an electrical device, basic precautions should always be followed,

including the following:

1. Please use only the original power cord or DC adapter supplied with the scale.

Other cords or adapters may damage the scale.

2. DC adaptor is used to charge the battery, and scale can operate without DC
adaptor.

3. Avoid using long power extension cords – this may cause interference

4. Do not use on surfaces or in areas where vibration, air movement or
temperature change.
Do not place in direct sunlight or near air conditioning vents.

5. Avoid high humidity (greater than 80%) that might cause condensation, and
keep away from direct contact with water and other corrosive chemicals.

6. Static may influence the weighing result. To reduce the static, wipe the pan and
scale with anti‐static wipes.

7. Don’t impact or drop heavy objects on the scale – this may affect accuracy, or
cause damage. Do not stack material on the scale when it is not in use.

8. Battery should be removed if the scale is not used for a long period of time.
Battery should be recharged every 3 months.

9. Place items to be weighed as close to center of the pan as possible

10. Only use fingers to operate the keypad. Do not press with hard or sharp
objects.

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Warranty

Gravity Measurement, Inc. (Schenectady, New York) offers one-year limited
warranty (parts and labor) for the components failed due to defects in materials or
workmanship. Warranty starts from the date of delivery.

During the warranty period, should any repairs be necessary, the purchaser must
inform its supplier or Gravity Measurement. The company or its authorized technician
reserves the right to repair or replace the components at any of its workshops
depending on the severity of the problems. However, any freight involved in sending
the faulty units or parts to the service center should be borne by the purchaser.

The warranty will cease to operate if the equipment is not returned in the original
packaging and with correct documentation for a claim to be processed. All claims are
at the sole discretion of Gravity Measurement.

This warranty does not cover equipment where defects or poor performance is
due to misuse, accidental damage, exposure to radioactive or corrosive materials,
negligence, faulty installation, unauthorized modifications or attempted repair or
failure to observe the requirements and recommendations as given in this User
Manual. Additionally, rechargeable batteries (where supplied) are not covered under
warranty.

Repairs carried out under the warranty does not extend the warranty period.
Components removed during the warranty repairs become the company property.

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What is inside Box

AC/DC adaptor (110V)
SWB7 indicator
Two wire seals. The wire seal is used usually by the inspector of Department of Weight and
Measure or authorized dealer. The wire seal is threaded through a metal rode that protrudes
through the bottom of the device and also through a hole in the scale base adjacent to the
metal rode.

Set up

1) Place this product on a firm and smooth place, don´t place it in vibration or shaking,

use bench for use on four only adjust foot, adjust the balance using the bubble level.

2) Use independent source, avoid other electrical disturbance.

3) Don´t put any object on the platter when turn on the balance.

4) Please, turn on 2-3 minutes before using.

5) Avoid temperature change too large and air flow strenuous sites.

6) Don´t overload the balance, don´t exceed the maximal capacity.

SYSTEM POWER CONSUMPTION

Main system power consumption: about 12mA
Main system power consumption (with backlight): about 36mA
Main system power consumption (with backlight and RS-232): about 48mA
Battery life: none backlight, about 320 hours.

DISPLAY DESCRIPTION

SWB7 Model:

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BASIC FUNCTION OPERATION

Press and hold this key for 2 seconds to turn off the balance.

Press this key to turn on the balance

1. To select the desired weight unit.

2. To exit from setup mode.

1. To reset the weight to zero “0”, but the display value has to be

lesser than ± 2% of maximum capacity.

2. To move one space to the left or downward in setup mode.

1. To subtract the container´s weight.

2. To move one space to the right or upward in setup mode.

1. To view gross or net weight when the balance is on tare

status. All other keys will be disabled when gross weight is activated.

2. To increase values upward in setup mode.

1. Key of confirmation in setup mode.

2. Manually transmitting data through RS232 to computer or

printer.

CONNECTION OF LOAD CELL AND RS232

1) Connection of the load cell to indicator

INDICATOR LOAD CELL

1 ------------- +Excitation
2 ------------- +Sense
3 ------------- -Excitation
4 ------------- -Sense
5 ------------- +Signal
6 ------------- (GND) shield
7 ------------- -Signal