无论您是在实验室还是在现场，称量集料，食品，药物粉末或其他材料时的精度都重要性无庸赘述。您需要准确的测量以确保您符合所有苛刻的QC / QA要求，而要找到适合您需要的产品可能是一项挑战。如何为您的应用选择合适的比例尺？
我们概述了选择秤时可以使用的一些注意事项，以及在调查选件时应注意的高性能功能。我们的目标是帮助您简化选择过程！
什么是所需的能力呢？
放置在秤上的总负载需要在设备的额定容量之内，以产生准确的重量。不要忘记勺子或容器的重量，尽管许多电子秤都将皮重与额定容量分开放置。一个好的经验法则是选择一个秤，使您可以在量程的中间权衡最重的样品。需要在更高容量下提高可读性的应用程序还需要更复杂的称重传感器，这会增加成本。
需要什么称重单位？
一些规格要求特定的度量单位，例如克，磅，盎司或谷物。选择秤时，请牢记这一点，特别是在寻找机械设备时。现代电子模型经常提供广泛的用户可选单元。
最低可读性是多少？
一些测试方法指定了标尺的最低可读性。可读性是秤将显示的最小质量分度。例如，可读性为1克的秤以整克显示重量，而不是小数或分数。该比例尺需要至少能够满足最低要求，但是请记住，过多地增加可读性可能会不必要地增加所选比例尺的费用。
您在寻找机械或数字秤吗？
当今的数字秤非常坚固，可以防尘，防潮，防震和其他环境条件，但是重要的是要考虑使用秤的方式和位置。如果精度要求不严格，则可能需要考虑机械秤。另一方面，如果您需要高度特定的测量，数字秤可能是您的正确选择，因为您将获得更准确的读数。数字秤也为您提供了称重单位，数据处理和存储选项的更多选择。
需要什么尺寸的秤盘或秤台？
秤盘需要完全支撑被称重的物体或容器。如果样品悬在平台上或超出平台，可能会导致读数不稳定或结果不准确。必要时，选择一个考虑较大对象的模型很重要。
做ÿ 欧ň EED 小号pecial ˚F 功能设定？
在考虑哪些功能对您重要时，考虑应用程序的需求以及功能和可移植性需求将很有帮助。这将帮助您缩小具有目标用途的模型的范围。我们概述了一些要考虑的因素：
校准
Regular calibration ensures that the accuracy of the scale is maintained over time. If you need to keep track of calibrations, it would be beneficial to have this feature without the added expense and inconvenience of calibration quality alone. Traditionally, a series of certified and traceable calibration masses are used to check the accuracy of the scale and adjust the mechanism if necessary.
Internal calibration is a feature of newer balances that uses an internal mechanism or circuit to load the balance with a prescribed weight to check and adjust the calibration. Calibration checks and adjustments can be documented in quality control documentation.
Weigh the following c apacity
Sometimes you may need to weigh a suspended sample under the scale. This is especially common when determining the density and specific gravity of a sample. By using the scale with the durable lower hook, you can easily determine the density in water or weight samples.
overload protection
Severely overloading the scale may permanently damage the load cell or weighing device. You may wish to protect your weighing system from overload damage. Scales with this feature provide electronic limiting. If the limit is exceeded, the scale will display an error message. The electronic scale should have an overload protection function to protect the weighing circuit.
element protection
If you need to use your scale in harsh conditions where water and dirt are present, be sure to consider a model that is dust and moisture resistant. This increases lifespan, and some models are even washable and can be hosed down.
portability
You may need to use a scale outside of the lab. Take it virtually anywhere with rechargeable or swappable battery power. Sturdy carrying cases are often available, or come with some models.
