Overview
A waterproof precision balance is a specialized weighing device engineered for environments where moisture, dust, or chemical exposure could compromise accuracy. Unlike standard balances, it incorporates sealed components and corrosion-resistant materials like stainless steel or ABS plastic. These instruments are critical in pharmaceuticals, food production, and research labs where precise measurements (often to 0.001g) are required under humid conditions. Modern models feature advanced load cells, touchless operation, and connectivity options (USB/Bluetooth) for data logging. Their design complies with international standards such as ISO 9001 and GLP/GMP, ensuring traceability for regulatory compliance.
Structure and Working Principle
The balance consists of a weighing pan (often stainless steel), a sealed electromagnetic force restoration (EMFR) sensor, and a waterproof housing. The EMFR system counteracts the force of the sample’s weight with an electromagnetic field, converting it into an electrical signal for digital display. Key structural elements include a tempered glass wind shield (optional), overload protection, and a leveling foot to minimize vibration interference. High-end models integrate anti-static coatings and internal calibration weights to maintain accuracy in fluctuating temperatures.
Key Features
IP67-rated waterproofing allows submersion in 1m of water for 30 minutes, making it suitable for wet labs or outdoor use. Anti-corrosive materials extend lifespan in acidic/alkaline environments. Some models offer dynamic weighing for moving objects or animal weighing modes. Advanced features include automatic tare, percentage weighing, and multi-unit conversion (g/kg/lb/oz). Touchscreen interfaces simplify operation, while internal memory stores calibration data to prevent drift. Battery-powered options enhance portability.
Application Areas
Pharmaceutical labs use these balances for API (active pharmaceutical ingredient) measurements where humidity control is critical. In food processing, they weigh additives or portion products in washdown areas. Environmental labs rely on them for soil/water sample analysis. Industrial applications include chemical manufacturing (powders, liquids) and jewelry crafting. Their durability also suits educational settings, where accidental spills are common. Niche uses include marine research and cosmetic formulation.
Maintenance and Precautions
Regular calibration with certified weights is essential—monthly for high-precision work. Use only mild detergents and soft cloths to clean; avoid abrasive materials that could scratch seals. Store in a dry place when not in use, and ensure the balance is leveled before each operation. Avoid weighing samples outside the rated capacity to prevent sensor damage. For batteries, opt for rechargeable models to reduce leakage risks. Always check O-ring seals for wear during routine inspections.
B2B Procurement Guide
For bulk purchases (10+ units), negotiate discounts of 10–20% with manufacturers like Ohaus or Sartorius. Request ISO 17025-accredited calibration certificates. Key specifications to compare: readability (e.g., 0.01g vs. 0.001g), pan size, and sample stabilization time. Consider total cost of ownership: balances with RS-232 outputs reduce manual data entry labor. Verify warranty terms—3 years is industry standard. For hazardous areas, confirm ATEX/IECEx certifications. Sample lead times average 4–6 weeks for customized units.
Related Manufacturers
- 主营：砂光机、除锈机、增氧机、精准天平、爬楼机、粗糙度仪、加油机、带锯机、压刨机、拉花锯、防窃听检测仪、测亩仪、选果机、漏水检测仪、水份检测仪、铆钉机、管道疏通你、电动脚手架
- 主营：电流环、打印机、质构仪、防水台秤、精密天平、数据线、落地秤、周转桶、分体秤、加热灯、运输桶、水分仪、配料秤、适配器、称重仪、电子秤、传感器、密度计、通讯线、塑料桶、集装桶、显示器、水分计、水份仪、电线电缆
- 主营：尼得科新宝减速机、减速机、三菱伺服、松下伺服
- 主营：AND爱安德电子天平、MUSASHI武藏点胶机
- 主营：测试仪、放大器、齿轮泵、电子天平、排气泵、铁质仪、摄像机、管道工、野测器、防尘帽、秤量瓶、安全盖、端子台、涂层剂、塑料锤、防潮箱、电工刀、通信块、电磁阀、压电泵、熔锡炉、联轴器、起钉器、报警器、微型泵、切割机
- 主营：点胶机、测试系统、点胶控制器、精密天平、高精度点胶、热式风速仪、彩色触摸显示屏、LED光源、静电消除、离子棒、鼓风机、离子发生器、手动液压拖板车、真空泵、机械臂、机器人、真空吸笔、吸笔头、返修工作台、电焊台、热割刀、焊接设备、镊子、气体检测仪、显微镜、图像处理照明
- 主营：硬度计、光谱仪、色度仪、AND防水电子称重天平、色差仪、激光粒度仪、测厚仪、圆度仪、光泽度仪、轮廓仪、粗糙度仪、影像测量仪、超声波探伤仪、测径仪、激光对中仪、平面度测量仪、对中仪、故障诊断仪、皮带轮对中仪、红外测油仪、合金分析仪、色差计
- 主营：分光光度计、原子吸收、气相色谱仪、电子天平、离子色谱仪、火焰光度计、水分测定仪、电位滴定仪、熔点仪、显微镜、水质、电化学、COD、BOD、酸度计、电导率、溶解氧、光谱仪、色谱仪、离子计、紫外可见分光光度计、可见分光光度计、便携式水质、多参数水质、原子吸收光谱仪
- 主营：电子秤、计数秤、串口秤、电子天平、精密电子天平、实验室电子天平、分析电子天平、台秤、桌秤、叉车秤、电子叉车秤、电子台秤、智能电子秤、电子计数秤、计数电子秤、平台秤、防爆台秤、计数台秤、电子桌秤
- 主营：减速机、测厚仪、照明灯泡、电子天平、检测设备、波形显示器、光源控制器、旋转蒸发仪、砂滤过滤器、电阻应变计、水分测定仪、分光光度计、电动打孔机、线传感器光源、立式手动齿轮、粗糙度分析仪、光催化反应器、全自动检测仪、恒流控制电源、紫外线解胶机、立式齿轮变速箱、显色指数照度计、数字控制点胶机
- 主营：挂钩称、地磅秤、轮重仪、十万分之一电子天平、十万分之一天平、国产十万分之一天平、十万分之一分析天平、精密天平、电子精密、微量天平、密度天平、分析天平、称重系统、电子吊磅、称重仪、行车吊钩、防爆电子、防爆地磅、打印电子、电子挂钩、无线吊秤、电子吊秤、打印功能、电子台秤、单层地磅
- 主营：带锯机、剥线机、增氧机、精密天平、中药制丸机、投料机、投饵机、脱毛机、压片机、工业脱水机、白度仪、磨刀机、切菜机、刨床、推台锯、水磨石机、除锈机、清灰机、单面刨、溶氧仪、液压叉车、钻床、电火花检漏仪、粗糙度仪、举升机、爬楼车
- 主营：剥线机、增氧机、投料机、精密电子天平、投饵机、带锯机、磨刀机、粗糙度仪、压刨机、电火花检测仪、白度仪、面鱼机、拉花锯、种子精选机、装裱机、钉角机、水磨石机、除锈机、母线机、小吊机、举升机、锯骨机、咬口机、爬楼机、封边机、灌装机
- 主营：精密电子桌秤、保存箱、分光光度计
- 主营：检查灯、通用焊台、聚氨酯轮、防水电子天平、交流电源、防爆电源、光纤照明、检查光源、照明装置、高科技点胶、集成式静电、静电消除器、防爆区静电