描述
1.产品定位与核心功能
SCHENCK 784839是申克（SCHENCK Process GmbH）推出的高精度工业称重传感器，推测属于RTN系列环形应变片传感器或PWS单点式传感器衍生型号。其设计目标为恶劣环境下的动态/静态称重，适用于冶金、化工、轨道交通等领域，精度等级可达C3/C4（误差≤0.013%）。
2.关键技术参数推断
基于申克公开产品线特征（未明确标注784839，但符合以下系列技术规律）：
量程范围：
-推测为10–300 t（参考DWB系列粱式传感器量程规律）；
-可选小量程型号（如5 kg–500 kg，适配VBB波纹管系列）。
精度与认证：
-分度数：C3（3000分度）或C4（10000分度）；
-认证：OIML、ATEX（防爆等级Zone 0/20）。
环境适应性：
-防护等级：IP68/IP69K（完全密封，耐粉尘与液体侵入）；
-工作温度：-30°C至+85°C（部分型号支持150°C高温）。
3.典型应用场景
动态轨道衡系统
-适配铁路罐车、矿石运输车辆动态称重（速度4–8 km/h，精度±0.5%）；
-支持铁水罐车净重计算（与MULTIRAIL®系统集成）。
工业过程控制
-料仓/料篮静态称重（如钢铁厂钢包称量）；
-配料系统精准控制（化工、食品行业±0.05%误差场景）。
4.系统集成与扩展功能
接口与通信：
-数字输出：RS485、ProfiBus或以太网（适配SCHENCK ONE数字化软件）；
-模拟输出：4–20 mA标准信号。
配套设备：
-接线盒：VKK 280x系列（支持多传感器组网）；
-变送器：VKG20700（带温度补偿与信号调理）。
5.设计与可靠性
机械结构：
-环形或梁式弹性体（抗侧向力干扰，适配冲击载荷）；
-材质：不锈钢（17-4 PH）或特种合金钢（表面热镀处理）。
维护特性：
-自诊断功能：内置过压保护与故障报警；
-寿命：30年以上（无故障运行时间超10万小时）。
1.Product positioning and core functions
SCHENCK 784839 is a high-precision industrial weighing sensor launched by SCHENCK Process GmbH.It is speculated to be a derivative model of the RTN series toroidal strain gauge sensor or PWS single-point sensor.Its design goal is dynamic/static weighing in harsh environments,and is suitable for metallurgy,chemical industry,rail transit and other fields,with an accuracy level of C3/C4(Error≤0.013%).
2.Inference of key technical parameters
Based on the features of Schenker’s public product line(not clearly marked 784839,but complies with the following series of technical rules):
Range range:
-Presumably 10–300 t(refer to the range law of the DWB series sensor);
-Optional small range models(such as 5 kg–500 kg,suitable for VBB bellows series).
Accuracy and certification:
-Number of grades:C3(3000 index)or C4(10000 index);
-Certification:OIML,ATEX(Explosion-proof Grade Zone 0/20).
Environmental adaptability:
-Protection level:IP68/IP69K(completely sealed,resistant to dust and liquid intrusion);
-Operating temperature:-30°C to+85°C(some models support high temperatures of 150°C).
3.Typical application scenarios
Dynamic track scale system
-Adapt to dynamic weighing of railway tankers and ore transport vehicles(speed 4–8 km/h,accuracy±0.5%);
-Supports net weight calculation of molten iron tank trucks(integrated with MULTIRAIL®system).
Industrial process control
-Static weighing of silo/basket(such as steel plant ladle weighing);
-Precise control of the ingredients system(±0.05%error scenario in chemical and food industries).
4.System integration and extension functions
Interface and communication:
-Digital output:RS485,ProfiBus or Ethernet(adapted to SCHENCK ONE digital software);
-Analog output:4–20 mA standard signal.
Supporting equipment:
-Terminal box:VKK 280x series(supports multi-sensor networking);
-Transmitter:VKG20700(with temperature compensation and signal conditioning).
5.Design and Reliability
Mechanical structure:
-Annular or beam-type elastomer(resistant to lateral force interference,adapted to impact load);
-Material:Stainless steel(17-4 PH)or special alloy steel(surface hot-dip treatment).
Maintenance features:
-Self-diagnosis function:built-in overvoltage protection and fault alarm;
-Lifespan:more than 30 years(no fault operation time exceeds 100,000 hours).
