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ScienTECH SA Analytical SA 120 - User Manual

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Electronic Balance
Setup and Operating Instructions
PN 12222 REV-D

Questions and Answers

  • O
    oliviaharrisAug 7, 2025
    What to do if 'OL' appears on ScienTECH Scales display?
    • M
      Mr. Robert HernandezAug 7, 2025
      If 'OL' appears on the display of your ScienTECH Scales, it indicates that the maximum capacity of the scale has been exceeded. To resolve this, reduce the weight of the container on the scale. Alternatively, check if the shipping clamp is engaged and disengage it.
  • J
    Jordan YoungAug 12, 2025
    Why are the weight readings incorrect on my ScienTECH Scales?
    • B
      Brittany JohnsonAug 12, 2025
      Incorrect weight readings on ScienTECH Scales can occur due to several reasons. First, the balance might be out of calibration, so recalibrate it. Second, ensure the balance is level. Third, before placing the weight, make sure you press the ZERO switch. Also, check that the object being weighed isn't touching the windscreen or the balance case top, and reposition it if necessary. Lastly, verify that the correct weighing mode is selected.
  • D
    Dr. Molly Miller MDAug 18, 2025
    How to fix a blank display on ScienTECH Scales?
    • M
      Megan WolfAug 18, 2025
      If the display of your ScienTECH Scales is blank, there are several potential causes. First, ensure that the balance is turned on by pressing the ON/OFF switch. Second, check that the power cable is properly plugged in and then press the ON/OFF switch. Third, verify that the AC outlet is providing power by checking the circuit breaker. Finally, try changing to a different AC outlet.
  • B
    Brian StricklandAug 22, 2025
    Why is the display unstable on my ScienTECH Scales?
    • J
      James ChenAug 22, 2025
      An unstable display on ScienTECH Scales can be caused by drafts or vibrations. To solve this, install a windscreen or relocate the balance to avoid air currents. If vibrations are present, isolate the balance from the source of vibration or relocate it.
  • E
    Emily NorrisAug 28, 2025
    What to do if 'UL' appears on ScienTECH Scales display?
    • J
      John DonaldsonAug 28, 2025
      If 'UL' appears on the display of your ScienTECH Scales, ensure that the pan is correctly positioned. If that doesn't resolve the issue, try pressing the ZERO switch, as the balance might be out of range. Also, check if the shipping clamp is engaged and disengage it.
  • M
    Michael LucasSep 1, 2025
    Why does the display stay in turn on sequence on my ScienTECH Scales?
    • P
      Paula CrawfordSep 1, 2025
      If the display of your ScienTECH Scales stays in the turn-on sequence, first, ensure the pan is properly placed on the balance. Second, drafts or vibrations might be present, so isolate or relocate the balance. Third, if a new windscreen has been installed, raise the pan height. Also, check if the shipping clamp is engaged and disengage it. Finally, if the power supply was connected to the wall outlet before the balance connector, unplug it from the wall and then plug it back in.

Summary

Unpacking and Setup

Choose the Proper Environment

Select a stable, clean environment free from vibrations and drafts for optimal balance performance.

Level the Balance

Adjust the balance feet using thumbwheels to center the bubble in the level indicator.

Unlock the Clamping Screw

Loosen the special screw that secures the balance suspension during shipping.

Connect to an Electrical Outlet

Plug the balance power supply into a grounded AC outlet for operation.

Turn the Balance On

Press the ON/OFF button to initiate the balance's startup sequence and self-check.

Front Panel Controls Overview

Balance Functions and Features

Autocalibration Procedures

Calibrates the balance using external or internal weights for accuracy.

Front Panel Parts Counting (PCS)

Enables counting of items based on a known sample weight.

HI-OK-LO Check Weighing

Sets upper and lower limits for verifying sample weight ranges.

Percent Weighing (%)

Displays weight as a percentage of a reference sample.

RS-232 and Communication

RS-232 Front Panel Configuration

Guides users on setting baud rate, parity, and auto-send parameters.

Type 1 Commands (Balance Control)

Lists commands for controlling balance functions like units and modes.

Troubleshooting Guide

Display Issues

Addresses problems like a blank display or incorrect indicators.

Reading Errors

Covers unstable readings, incorrect weights, and capacity limits.

ScienTECH SA Analytical SA 120 Specifications

General IconGeneral
BrandScienTECH
ModelSA Analytical SA 120
CategoryScales
LanguageEnglish

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