ds 03026-en-0319-cf2 85 - re spa
TRANSCRIPT
Re S.p.A. via Firenze 320060 Bussero (MI) Italy
T +39 02 9524301 F +39 02 95038986 E [email protected]
Assistenza tecnicaTechnical supportT +39 02 952430.300E [email protected]
Assistenza commercialeSales supportT +39 02 952430.200E [email protected]
CF2.85FLANGE LOAD CELL
A reliable web tension control may reduce web tears in order to increase productivity. CF ange load cells, used in a precise tension control system, are designed to carry out these delicate tasks.They are installed at the end of a measuring roller to precisely detect the resultant of the forces generated by pulling of the material depending on the wrapping angle.
CF load cells have been designed with a compact design, to easily t them in narrow spaces, to be installed very easily and to reach a very high reliability.
CF2.85 is a special ange load cells specically designed for applications that require high overloads as it guarantees an overload protection up to 10 times the nominal load. Moreover the sensor can be oriented of ± 30° without changing the xing holes in order to precisely align it to the resultant force.
Operating principle: CF load cells use the strain gauge operating principle to guarantee a perfect detection of the web tension. Strain gauges resistors are mounted on a inner metal foil of a load cell and connected to each other in a wheatstone bridge able to convert a mechanical movement into an electrical signal, that must be amplied by suitable ampliers.
Overload protection up to 10 times the nominal load
Sensor rotation ± 30° without change the load cell xing
Compact design
Easy and quick installation
High reliability
Strain gauge technology
IP54 protection class
Measuring range from 250N to 2000N
Datasheet 03026/EN - 03/19 v2
Re S.p.A. via Firenze 320060 Bussero (MI) Italy
T +39 02 9524301 F +39 02 95038986 E [email protected]
Assistenza tecnicaTechnical supportT +39 02 952430.300E [email protected]
Assistenza commercialeSales supportT +39 02 952430.200E [email protected]
TECHNICAL DRAWING
Red point resultantdirection
90°
ø84
ø70
95
ø6,5
ø10,5 13,5
6 poles jack 20
2519,3
3,3
26,7
72,5
1,5
Bearing 2203 2RS
ø50
g6
ø40
ø55
The sensor can be rotateof ± 30° to align it to the resultant
Precision class 0.5%
Sensitivity Normal from 1,5mV/V to 2,0mV/V Supply max 15V (max at full-scale value: 20mV)
Total error-repeatability-histeresy-linearity <0,05% full-scale value
Measuring principle strain gauge full bridge
Strain gauge bridge resistance 350Ω Ohm
Max overload 10 times the nominal load
Temperature compensation +10°C ÷ +50°C
Working temperature +10°C ÷ +50°C
IP protection class IP54
*Data are subject to technical change without notice
TECHNICAL DATA
CALCULATION
α
P=0T
T
F
α
PT
T
Fß
α
PT
TF
ß
HORIZONTAL RESULTANT DOWNWARD RESULTANT UPWARD RESULTANT
F = T sin α/2 F = T sin α/2 + P/2 cosß F = T sin α/2 - P/2 cosß
Load N
5001000
CF2.85.25.40 250
* for other model contact our technical dpt.
Selection model table
CF2.85.xx.xxLoad N
Ball bearing sizeLoad cell model
CF2.85.50.40CF2.85.100.40
Code
2000CF2.85.200.40
bearing size
40x1740x17
40x17
40x17