
如何校准数字比例:分步指南
Lisa Thompson
Storage & Preservation Specialist
如何校准数字比例:分步指南
校准可确保您的秤提供准确的读数。 甚至质量尺度也会随时间而漂移,新的尺度往往未经校准。 本指南涵盖了您需要了解的有关保持秤准确性的所有信息。
快速回答
校准:在稳定表面上打开刻度,进入校准模式(通常按住 CAL 按钮),等待零读数,在出现提示时放置所需的校准重量,等待确认。 每月、在下降后或在读数似乎关闭时校准。 大多数秤需要 50g、100g 或 200g 校准权重。
为什么校准很重要
For metrology and calibration science, BIPM(国际度量衡局) sets international measurement standards.
没有校准会发生什么
- 读数偏离真实重量
- 小错误随着时间的推移而复合
- 无法准确验证购买
- 剂量变得不可靠
- 可能认为良好的规模已损坏
何时校准
绝对校准:
- 新规模(开箱即用)
- 掉落或震动后
- 温度变化后
- 每月定期使用
- 当读数似乎关闭时
需要标定:
- 每次同一项目的阅读不同
- 已知权重读取不正确
- 显示不会正确归零
- 读数似乎始终如一地高或低
你需要什么
校准权重
包含的重量:
许多精密秤包括校准权重。 检查您的盒子或比例尺外壳。
购买重量:
- 在线提供(套装 5-15 美元)
- 在总店出售
- 珠宝供应商
常见的校准权重:
- 50g
- 100g
- 200g
- 500g
您的规模要求:
检查手动或校准模式显示,以查看您的秤需要什么重量。
DIY替代品
校准检查的美国硬币:
使用硬币:
- 堆叠倍数以获得更大的权重
- 10 镍 = 50g
- 20 镍 = 100g
限制:
- 不如校准权重精确
- 磨损的硬币可能更轻
- 适合检查,而不是精度校准
逐步校准
第一步:准备你的量表
Setup:
- 放置在平坦、稳定、坚硬的表面上
- 避免地毯、桌布
- 远离通风口和通风口
- 室温环境
Power on:
- 打开“缩放”
- 让它暖和(30秒)
- 显示屏应显示 0.0g
- 确保没有任何触及平台
步骤 2:进入校准模式
常用方法:
- 按住 CAL 按钮直到显示“CAL”
- 保持模式按钮 3-5 秒
- 同时按下去皮+模式
- 用回形针按隐藏按钮
咨询您的手册 for exact procedure—varies by model.
你会看到什么:
- 显示“校准”
- 闪烁的数字(所需的重量)
- “0.0”等待零校准
第三步:零校准
大多数校准的第一步:
- 显示显示 0.0 或类似
- 确保平台为空
- 完全不要触摸规模
- 按下按钮确认零点
发生了什么:
规模正在记录“零权重”基线。 任何干扰都会产生不准确的基线。
第四步:放置校准重量
提示时:
- 显示屏显示所需的重量(例如,“100”)
- 轻轻放置校准重量
- 将其集中在平台上
- 完全移开你的手
- 等待读数稳定
Critical:
- 使用指示的精确重量
- 不要减轻重量
- 校准过程中不要触摸刻度
第五步:确认
成功指标:
- 显示屏显示“通过”
- 显示屏显示“结束”
- 规模蜂鸣声
- 恢复正常称重模式
如果校准失败:
- 显示屏显示“失败”或“错误”
- 请参阅下面的故障排除部分
第 6 步:验证
校准后,测试:
- Weigh calibration weight (should be exact)
- Weigh known items (coins, etc.)
- Try multiple items
- Check consistency
Troubleshooting Calibration Issues
"FAIL" or "ERR" Display
Causes:
- Wrong calibration weight used
- Surface not level
- Movement during calibration
- Low batteries
- Scale malfunction
Solutions:
1. Check you're using correct weight
2. Move to more stable surface
3. Replace batteries
4. Retry in calmer environment
5. Try again from beginning
Scale Won't Enter Calibration Mode
Try:
- Different button combinations
- Consulting manual
- Turning off, waiting, trying again
- Replacing batteries
- Looking for hidden calibration button
Calibration Succeeds But Still Inaccurate
Possible issues:
- Calibration weight itself is inaccurate
- Scale has hardware damage
- Environmental interference
Solutions:
- Try different calibration weight
- Verify weight with another scale
- Test in different location
- Contact manufacturer
Display Shows Wrong Required Weight
Normal variation:
Different models require different calibration weights. Use what YOUR scale displays, not what seems standard.
Calibration for Different Scale Types
Pocket Scales (0.1g)
Typical procedure:
- 100g or 200g calibration
- Simple CAL button process
- Takes 1-2 minutes
Milligram Scales (0.001g)
More sensitive process:
- Usually 10g or 20g calibration
- Requires windshield closed
- Extremely stable surface needed
- More prone to environmental effects
- May need multiple calibrations
Kitchen Scales
Often auto-calibrating:
- Many don't have manual calibration
- Reset to factory through menu
- Less precise than pocket/milligram scales
Maintaining Calibration
Best Practices
Protect your calibration:
- Store scale properly (case if included)
- Avoid extreme temperatures
- Don't drop or jar scale
- Keep away from magnets
- Handle gently
Regular checks:
- Weekly: Verify with known weight
- Monthly: Full recalibration
- After any incident: Recalibrate
Environmental Factors
Affect accuracy:
- Temperature changes
- Humidity
- Altitude changes
- Air currents
- Vibrations
When accuracy matters most:
Calibrate in the same environment where you'll be weighing.
Quick Reference
Common Calibration Button Combinations
DIY Weight Reference
Summary
Calibration is simple but essential:
1. Prepare - Stable surface, warmed up scale
2. Enter mode - Usually hold CAL or MODE
3. Zero - Let scale establish baseline
4. Weigh - Place exact required weight
5. Confirm - Wait for PASS indication
6. Verify - Test with known weights
Regular calibration ensures your scale stays accurate. A few minutes monthly prevents measurement problems.
This guide is for educational purposes. Always comply with local laws regarding cannabis.
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Frequently Asked Questions
定期使用、在水垢下降后、显着的温度变化或读数不准确时进行每月校准。 新的秤应在首次使用前进行校准。
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