称重传感器，又称为测力传感器和压力传感器，是一种将质量信号转变为可测量的电信号输出的装置，主要有S型、悬臂型、轮辐式、波纹管式、单点式、桥式、柱式等几种样式。称重传感器的工作原理原理上称重传感器就是压力传感器, 只是形状不一样而已。

The PR 6211 range of load cells is specially designed for weighing silos, tanks and process vessels. The unique design principle facilitates a particularly compact construction and, as a result, the unit can be used even in restricted space conditions. The FlexLock installation kits counterbalance movements arising from mechanical or thermal expansion or contraction of the vessel or its supporting construction.

Sartorius PR6211特别为称重筒仓，罐秤，料斗秤,过程容器和配料系统等应用上。其独一无二的设计原理使得传感器结构紧凑，因而其安装环境不受限制。其Flexlock装配套件可以有效平衡由机械或者热膨胀冷缩引起的移动。

A particular design characteristic of some models is the thin-film or “splutter” technology. This enables an operating temperature of up to 180°C to be reached. In addition, the small construction has integrated overload protection of 500kg. At the same time, this range distinguishes itself above all for its unmatched reliability, robustness and stability, which enable trouble-free operation without adjustment, year after year. The hermetically sealed enclosure and special

TPE cable allows the unit to be used even under extreme operating conditions in harsh production environments.

让PR6211出众的不仅是其工作温度高达180℃，而且在结构紧凑前提下集成500kg的过载保护。不仅如此，其无与伦比的可靠性和稳定性，使得传感器年复一年后仍能保持无障碍操作，无需校准。密封外壳和特殊TPE材质电缆线，允许传感器在极端环境下运作

The entire measurement chain can be calibrated without the use of a reference weight.

Due to “matched output” technology, a damaged load cell can be exchanged without the need for re-calibration. This saves a tremendous amount of time during commissioning. An explosion-proof (Ex) version of this range of load cells is also available, as an option, for use in intrinsically safe environments.

校准整个测量链不需要砝码，得益于匹配输出技术，在不需要再次校准的情况下，自由替换损坏的传感器，这样在调试期使用用户可节省大量时间。同样PR6221可选配防爆版。

传感器结构

Hermetically sealed, welded stainless steel construction, filled with polyurethane and inert gas.

密封，焊接不锈钢结构，内部充满惰性气体。

材料

1.4542 (DIN 17440) acc. to S604, S622 (B.S.)

防护等级

IP 68, IEC 529 (equivalent to NEMA 6). The load cell can be submerged in water to a depth of 1.5m for 10,000 hours, IP 69K

IP 68, IEC 529 (equivalent to NEMA 6). 传感器可在水下1.5m工作10000个小时，防护等级：IP69K.

电缆线

Robust, flexible, screened

TPE thermoplastic Elastomere

Sheath: grey

PR 6211/..D1E, Colour: blue

PR 6211 LT: PFA Thermoplastic, Colour: red

Diameter: 5mm, wires 4 x 0,35mm2

PR6211/30… 300kg: 3mm, 4 x 0,13mm2

Length : 5m

PR6211/30… 300kg: 3m

弯曲半径

Fixed installation ≥ 50mm       固定安装≥ 50mm

Flexible installation ≥ 150mm   灵活安装≥ 150mm

认证

PR 6211/… D1E (500kg… 10t)

II 1G EEx ia IIC T6, II 1D IP65 85°C

注册号:

PTB 02 ATEX 2059, TüV 03 ATEX 2301x