4 Tools for Effective Cleaning of Equipment

Scope This SOP describes procedures for cleaning industrial (benchtop) scales. Designed to instruct personnel on how to thoroughly clean a scale. Scale cleanliness can have a significant impact on operating efficiency and scale longevity, as well as user safety.

Things to note

• Make sure personnel know how to clean the scale and refer to the instructions and guidelines in the user manual.
• First remove excess powder and dust, then remove gunk.
• For excess powder and dust, use a clean, dry cloth.
• Remove the weighing plate according to the instructions in the user manual.
• Remove any dirt and foreign matter that may have accumulated beneath it. (Do not use any hard objects to do this. Do not disassemble the weighing platform.)
• Remove dirt and sediment from the outside and inside of the weighing platform using a soft, clean cloth moistened with appropriate detergent.
• Only use cleaning agents that will not affect the plastic used in the weighing platform and comply with the manufacturer's instructions.
• Do not use strongly acidic, alkaline or chlorinated cleaners. Avoid using substances with a pH that is too high or too low as this increases the risk.
• All cleaners should be rinsed thoroughly according to the instructions in the user manual.
• Take special care when cleaning the load cells of our high-precision models. Never touch, blow or spray the load cell cover directly with compressed air.
• The most appropriate cleaning procedure depends on the type of surface and environmental conditions (dry, wet or corrosive). The instructions in the user manual should always be followed.
• Stainless steel models require subsequent oiling for proper maintenance.
• See the user manual for detailed instructions.

Cleaning Frequency Cleaning frequency varies depending on the industry, application and frequency of instrument use. In general, it is recommended to clean the scale at least after every shift or product line change. If there is a spill, the entire area should be cleaned before weighing another material. When handling potentially toxic substances, the scale must always be cleaned after use. Cleaning Procedure The following steps describe a general cleaning procedure that applies to all bench scales. Depending on the type and model of scale you have, some of the steps listed below may not work. Standard cleaning procedures

• 做好准备：保护自己并准备好说明。
  a. 穿戴适当的个人防护装备（外套、护目镜和手套）。
  b. 查阅操作说明，了解如何拆卸和重新组装秤的可拆卸部件。
  c. 查阅操作说明和/或用户手册，了解清洁秤部件的推荐清洁剂。
• 关闭秤显示屏。
  建议拔掉电源，但这不是必须的。如果可能，请将秤保持在正常操作位置，不要将其倾斜到一边，也不要拔下连接的外围设备。
• 清洁秤周围的区域。
  使用干净、干燥的无绒布清除设备周围的任何污垢，以避免进一步污染。
• 移除负载板。
  负载板应易于移除。取下它不需要硬物，也不应该使用硬物。不要拆卸称重平台。
• 清洁秤的内部框架和终端。
  使用蘸有温和清洁剂的干净无绒布清洁并清除秤表面上的任何溢出物。
  a. 使用蘸有温和清洁剂的柔软干净布擦去称重平台外部和内部的污垢和沉积物。
• 清洁负载板。
  使用湿布并用含有乙醇的温和清洁剂（例如，商用窗户清洁剂）清洁。
• 重新组装秤。
  确保零件位置正确，打开秤并检查其是否正常工作。如果完全关闭，请在首次使用前留出足够的预热时间（查看操作说明以了解制造商的建议）。
• 将秤调平。
  a. 确保气泡位于标记圆圈的中心，如果不在，请采取适当措施重新调平。
  b. 在称重盘上放置测试砝码并执行常规测试以检查准确性。
  c. 如果未通过此常规测试，请使用外部砝码校准秤或执行内部校准，例如 FACT。
  d. 测试配件（例如，为打印机制作测试打印输出）。

General Industrial Scale Cleaning Procedures

• Be prepared: Protect yourself and have instructions ready.
• 关闭秤显示屏。
  如果可能，请将秤保持在正常工作位置。
• 清洁秤周围。
  使用干净的干无绒布清除秤周围的任何污垢。
• Remove the load plate.
• Clean the inside and outside of the scale.
• Clean the load board.
• Reassemble the scale.
• Check the leveling of the scale and perform routine tests if necessary.