供应 DSAI151 57120001-DE DSAI 151 控制主板 ABB
安装布置
选择安装布置时，重要的是要记住将称重传感器放置在
提供足够的测量力（FR）以实现高可能精度的方向。
称重传感器没有特定的正确方向；它位于适合的方向
应用时，应注意螺钉孔的位置。也可以安装称重传感器
辊悬挂在称重传感器下方。
压力导管枕式称重传感器，水平测量PFTL 101，用户手册
2.说明
14 BSE009965R0401 en版本F
称重传感器在两个方向上具有相同的灵敏度，因此可以将称重传感器安装在
简单的方式。
典型的安装布置为水平和倾斜安装。
2.5.1坐标系
为称重传感器定义了坐标系。这在力计算中用于导出力
称重传感器主方向上的组件。
当方向符号R、V和A被识别为力分量F的后缀时
表示相应方向上的力分量。后缀R可以省略，当
R=测量方向
V=横向
A=轴向
图10.定义力计算中使用方向的坐标系
2.5.2水平安装
在大多数情况下，水平安装是明显和简单的安装方法。
计算力时，必须使用以下公式：
FR=T×（cosβ-cosα）
FRT=0
FRtot=FR+FRT=T×（cosβ-cosα）
FV
=T×（sinα+sinβ）
FVT=皮重
FVtot=FV
+FVT=T×（sinα+sinβ）+皮重
哪里：
T=腹板/带材张力
FR=测量方向上腹板/带材张力的分力，R
FRT=测量方向上皮重的分力，R
FRtot=测量方向上的总力，R
FV
=横向腹板/带材张力的分力，V
FVT=皮重横向分力，V
FVtot=横向总力，V
皮重=因皮重产生的力
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 en版本F 15
α=#横滚一侧相对于水平面的反射角
β=#横滚另一侧相对于水平面的反射角
+α +β
图11.水平安装
2.5.3倾斜安装
“倾斜安装”指称重传感器相对于水平面倾斜的布置
飞机在某些情况下，这是的选择。
计算力时，必须使用以下公式：
FR=T×[cos（β+γ）-cos（α-γ）]
FRT=皮重×sinγ
FRtot=FR+FRT=T×[cos（β+γ）-cos（α-γ）]+（-Tare x sinγ）
FV
=T×[sin（α-γ）+sin（β+γ）]
FVT=-皮重×cosγ
FVtot=FV
+FVT=T×[sin（α-γ）+sin（β+γ）]+皮重×cosγ
哪里：
T=腹板/带材张力
FR=测量方向上腹板/带材张力的分力，R
FRT=测量方向上皮重的分力，R
FRtot=测量方向上的总力，R
FV
=横向腹板/带材张力的分力，V
FVT=皮重横向分力，V
FVtot=横向总力，V
皮重=因皮重产生的力
α=#横滚一侧相对于水平面的反射角
β=#横滚另一侧相对于水平面的反射角
γ=称重传感器安装表面相对于水平面的角度
压力导管枕式称重传感器，水平测量PFTL 101，用户手册
2.说明
16 3 BSE009965R0401 en版本F
在计算时，重要的是将角度设置为具有正确符号的方程式
关于水平面，参见图12。倾斜安装17页。
FR皮重、皮重、FV、FV
图12.倾斜安装
2.6电路
称重传感器的电路如图所示
（信号）
（电源电流）
图13.称重传感器电路图
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。
•当使用PFTL 101AER或PFTL 101 BER型称重传感器时
供应 DSAI151 57120001-DE DSAI 151 控制主板 ABB
供应 DSAI151 57120001-DE DSAI 151 控制主板 ABB
Mounting Arrangement
When choosing a mounting arrangement it is important to remember to position the load cell in a
direction that gives sufficient measuring force (FR) to achieve the highest possible accuracy.
The load cell has no particular correct orientation; it is positioned in the orientation best suited for
the application, bearing in mind the positions of the screw holes. The load cell can also be installed
with the roll suspended under the load cell.
Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual
2 Description
14 3BSE009965R0401 en Rev F
The load cell has the same sensitivity in both directions, so that the load cell can be installed in
the easiest manner.
Typical mounting arrangements are horizontal and inclined mounting.
2.5.1 Coordinate System
A coordinate system is defined for the load cell. This is used in force calculations to derive force
components in the load cell principal directions.
Where direction designations R, V and A are recognized as suffixes for force components, F, this
represents the force component in the respective direction. The suffix R may be omitted, when
R= Measuring direction
V= Transverse direction
A= Axial direction
Figure 10. Coordinate system defining directions used in force calculation
2.5.2 Horizontal Mounting
In the majority of cases horizontal mounting is the most obvious and easiest mounting method.
When calculating the force, the equations below must be used:
FR = T × (cos β - cos α)
FRT = 0
FRtot = FR + FRT = T × (cos β - cos α)
FV
= T × (sin α + sin β)
FVT = Tare
FVtot = FV
+ FVT = T × (sin α + sin β) + Tare
where:
T = Web/strip tension
FR = Force component from web/strip tension in measurement direction, R
FRT = Force component from Tare in measurement direction, R
FRtot = Total force in measurement direction, R
FV
= Force component from web/strip tension in transverse direction, V
FVT = Force component from Tare in transverse direction, V
FVtot = Total force in transverse direction, V
Tare = Force due to tare weight
Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual
2 Description
3BSE009965R0401 en Rev F 15
α = #eflection angle on one side of the roll relative the horizontal plane
β = #eflection angle on the other side of the roll relative the horizontal plane
+α +β
Figure 11. Horizontal Mounting
2.5.3 Inclined Mounting
Inclined mounting means arrangements in which the load cell is inclined relative to the horizontal
plane. In some cases this is the only option.
When calculating the force, the equations below must be used:
FR = T × [cos (β + γ) - cos (α - γ)]
FRT = Tare × sin γ
FRtot = FR + FRT = T × [cos (β + γ) - cos (α - γ)] + (- Tare x sin γ)
FV
= T × [sin (α - γ) + sin (β + γ)]
FVT = - Tare × cos γ
FVtot = FV
+ FVT = T × [sin (α - γ) + sin (β + γ)] + Tare × cos γ
where:
T = Web/strip tension
FR = Force component from web/strip tension in measurement direction, R
FRT = Force component from Tare in measurement direction, R
FRtot = Total force in measurement direction, R
FV
= Force component from web/strip tension in transverse direction, V
FVT = Force component from Tare in transverse direction, V
FVtot = Total force in transverse direction, V
Tare = Force due to tare weight
α = #eflection angle on one side of the roll relative the horizontal plane
β = #eflection angle on the other side of the roll relative the horizontal plane
γ = Angle for load cell mounting surface relative the horizontal plane
Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual
2 Description
16 3BSE009965R0401 en Rev F
When calculating it is important that the angles are set into the equations with the correct signs in
relation to the horizontal plane, see Figure 12. Inclined Mounting page 17.
FR Tare Tare FV FV
Figure 12. Inclined Mounting
2.6 The Electrical Circuit
The electrical circuit of the load cell is shown in the diagram
(signal)
(supply current)
Figure 13. Load cell circuit diagram
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 use
供应 DSAI151 57120001-DE DSAI 151 控制主板 ABB
