SPAF140C-AA SPAF140C 低频继电器双级数字 ABB
向称重传感器提供0.5 a、330 Hz的交流电。二次信号被校准
对于分压器R1的正确灵敏度：
-R2
，并提供温度补偿
通过热敏电阻T。
次级侧上的所有电阻相对较低。输出阻抗通常为1-3Ω，
这有助于抑制干扰。
压力导管枕式称重传感器，水平测量PFTL 101，用户手册
2.说明
3BSE009965R0401欧洲标准17版
3.
安装
3.1概述
该设备是一种精密仪器，
必须小心处理。称重传感器在安装前不得打开包装。
为了达到规定的精度、佳的可靠性和长期稳定性，称重传感器
必须按照以下说明进行安装。另请参阅中的6.4故障跟踪
机械安装。
•当PFTL 101AER或PFTL 101 BER型称重传感器用于耐酸试验时
应用建议使用奥氏体、耐酸的转接板和螺钉
钢
信息
对于这些称重传感器类型的所有安装类型，必须使用奥氏体钢，
优选耐酸或不锈钢。
•称重传感器的基础必须尽可能稳定。坚固的结构
减少测量辊和轴承装置的振动能量。
•接近称重传感器的表面以及影响配合的其他表面必须进行机加工
fl@t至0.05mm以内。
•称重传感器上方或下方不得有任何垫片
不利影响fl@tness
相反，垫片可以放置在适配器板和
基础或适配器板和轴承箱之间。
•固定称重传感器的螺钉必须用扭矩扳手拧紧。
•测量辊的轴承布置必须设计为允许轴向膨胀
随温度变化的辊。
•对辊施加任何驱动时，必须确保来自驱动的干扰力：
保持在小值。
•测量辊必须动态平衡。
•称重传感器的安装表面必须位于同一高度并与
测量辊。
•在腐蚀性环境中，称重传感器之间可能发生电偶腐蚀，
镀锌螺钉和转接板。这就需要使用不锈钢螺钉
以及不锈钢或同等材料的转接板。参见图纸中的适配器板。
3.2开箱
设备到达时，对照交付文件进行检查。通知ABB任何投诉，
从而可以立即纠正错误并避免延迟。
压力导管枕式称重传感器，水平测量PFTL 101，用户手册
3.安装
18 3BSE009965R0401 en版本F
3.3准备工作
通过检查必要的文件和材料，及时准备安装
可用，如下所示：
•安装图纸和本手册。
•标准工具、扭矩扳手和仪器。
•防锈，如果对机加工表面进行额外保护。例如，选择TECTYL 511（Valvoline）或FERRYL（104）。
•称重传感器、转接板、轴承箱等。
•20页表2所列螺钉
SPAF140C-AA SPAF140C 低频继电器双级数字 ABB
SPAF140C-AA SPAF140C 低频继电器双级数字 ABB
The load cell is supplied with a 0.5 A, 330 Hz alternating current. The secondary signal is calibrated
for the correct sensitivity with a voltage divider R1
- R2
, and temperature compensation is provided
by thermistors T.
All resistances on the secondary side are relatively low. The output impedance is typically 1-3 Ω ,
which helps to suppress interference.
Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual
2 Description
3BSE009965R0401 en Rev F 17
3
Installation
3.1 General
The equipment is a precision instrument which, although intended for severe operating conditions,
must be handled with care. The load cells should not be unpacked until it is time for installation.
To achieve the specified accuracy, the best possible reliability and long-term stability, the load cells
must be installed in accordance with the instructions below. See also 6.4 Fault Tracing in the
Mechanical Installation.
• When a load cell type PFTL 101AER or PFTL 101BER is used for an acid resistant
application it is recommended to use adapter plates and screws of austenitic, acid resistant
steel.
Information
For all types of installations of these load cell types, austenitic steel must be used,
preferably acid resistant or stainless steel.
• The foundation for the load cell must be made as stable as possible. A sturdy construction
reduces the vibration energy of the measuring roll and bearing arrangement.
• The surfaces closest to the load cell, and other surfaces that affect the fit must be machined
fl@t to within 0.05 mm.
• There must not be any shims immediately above or below the load cell, as this may
adversely affect the fl@tness
Instead, shims may be placed between the adapter plate and
the foundation or between the adapter plate and the bearing housing.
• The screws that secure the load cell must be tightened with a torque wrench.
• The bearing arrangement for the measuring roll must be designed to allow axial expansion of
the roll with changes in temperature.
• Any drive to the roll must be applied in such a way that interfering forces from the drive are
kept to a minimum.
• The measuring roll must be dynamically balanced.
• The mounting surfaces of the load cells must be on the same height and parallel with the
measuring roll.
• In a corrosive environment, galvanic corrosion may occur between the load cell,
galvanized screws and adapter plates. This makes it necessary to use stainless steel screws
and adapter plates of stainless steel or equivalent. See adapter plates in A Drawings.
3.2 Unpacking
When the equipment arrives, check against the delivery document. Inform ABB of any complaint,
so that errors can be corrected immediately and delays avoided.
Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual
3 Installation
18 3BSE009965R0401 en Rev F
3.3 Preparations
Prepare the installation in good time by checking that the necessary documents and material are
available, as follows:
• Installation drawings and this manual.
• Standard tools, torque wrench and instruments.
• Rust protection, if additional protection is to be given to machined surfaces. Choose TECTYL 511 (Valvoline) or FERRYL (104), for example.
• Load cells, adapter plates, bearing housings, etc.
• Screws as listed in Table 2. page 20
SPAF140C-AA SPAF140C 低频继电器双级数字 ABB
