Tension Sensor SFK

8 tension ranges from 0 - 25 N up to 0 - 630 N

For measuring the tension of running wires, fibre optics, cables, ropes, slim tapes and foils
Single roller tension sensor for installation at an existing deflection roller

Special Features

  • Precision DMS sensor with best accuracy
  • Directly, axial force application
  • High overload proctection (max. 10 times of nominal force)
  • Easy mounting by using mechanical stops and limited space requirements
  • The progressively adjustable axial mounting depth using a drill hole ( 30 mm), enables acurate positioning of the roller depanding on the material path
  • Easy mounting by rollers provided by the customer
  • Required power supply 10 V DC regulated 
  • Output signal mV/V
  • Connection to an external amplifier is recommended
  • IP 52 (dust tight and dripping water) protected

Standard Features

  • Rugged, stainless steel housing
  • Sensor with highly mechanical rigidity
  • Clamps version optional available
  • Supplied with a 5 m shielded cable with open ends (optional length are available)

Available Models

ModelNominal Force
SFK-2525 N
SFK-4040 N
SFK-6363 N
SFK-100100 N
SFK-160160 N
SFK-250250 N
SFK-400400 N
SFK-630630 N

Mounting

The sensor can be easily mounted everywhere a deviating point respectively a guide roller is built in at the machine. These places can be used as measuring point, assumed the in and outgoing angle is constant.
For mounting, the sensor can be clamped on each position of the cylinder. Alternativ a clamp device is available (see additional Options)
Please click picture to see
installation suggestion sketch

Calculation of the tension range

The tension range can be calculated for every wrapping angle with this formula:

When selecting the nominal measurement force it is necessary to take into account the weight of the guide roll and raise the nominal load respectively, particularly when working with small nominal forces.

Axle Journal

DesignAxle diameter mmSuitable bearing
A (standard)10 f76000 / 6300
B15 f76002 / 6302
C17 f76003 / 6303
According to the application different bearing journals are available (standard: code A = 10 mm)
More information to the design see dimensions

Guide Rollers

Example for rolls, usable for tensions sensor SFK
You can mount your own guide rollers or Schmidt rollers. A big number of rollers with different geometry and different materials are available on request - send us your demand profile

Cable Connection

Code T (standard)

Axial output with screwed cable gland.
cable length 5 m

Click picture for more information

Code N2

Axial output with straight plug connection M12
cable lenth 5 m

Click picture for more information

Code S2

Axial output with right-angled plug connection M12
cable lenth 5 m

Click picture for more information

Sensors of model SFD are available with longer cables on request.

Additional Options

Clamp device

for mounting the sensor. The clamp can be positioned and clamped at any place of the sensor
Order number: SFK-KV

Click picture for more information

Display Units and Amplifier

Here you can find the recommended display units and amplifiers

Ordering Example

To place an order Model with
tension
range
Design

Option

Complete
Order No.

Please indicate the com-
plete order number.:

SFK-100 + A + T = SFK-100-A-T

Delivery Includes

Force sensor with cable

Dimensions

Dimensions For PDF-file please
click picture

Specifications

Tension range:25 up to 630 N nominal load
Accuracy:0.5 % nominal load
Max. applied force:160 % of nominal load, overload protection afterwards
Overload:10 times of nominal load, max. 2000 N (depending on measuring range)
Transverse force at the axle:max. 100 % nominal load
Axle deflection:approx. 0.5 mm
Measuring principle:Strain gauge bridge
Output signal:1.5 mV/V
Max. power supply:10 V DC
Connecting cable:5 m
Bridge resistor:350 Ω
IP code:IP52
Temperature range:10...70 C
Housing:Stainless-steel
Weight, net (gross):Approx. 600 g (Approx. 1000 g) inclusive 5 m cable

Specifications subject to change without notice!

News

1209451075.jpg

New Tension Meter

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With one click you can download the information sheet for our new tension sensor.

Contact

Call us!

+49 (0)8638 9410-0
Can't find what you're looking for? Then get in touch with our experts.

Send us a fax!

+49 (0)8638 4825
You can also send us a fax with your message or request.

Contact via E-Mail!

info@hans-schmidt.com
Or feel free to email
us via our contact form!