Special Features
- Tension sensor FSL with integrated measuring amplifier and high accuracy of 1.5 % FS
- Large bending radius for gentle handling of sensitive material by using smooth running, V-grooved guide rollers with Ø 32 mm, ball-bearing mounted
- Various output signals are available:
– analog: 0 – 1 V DC (standard), 0 – 10 V DC (optional)
– digital (optional): USB, RS-232, Wi-Fi, RS-422 – see model FSL-422 (FSL-100 and higher)
– current: 4 – 20 mA (optional) - Easy installation, even afterwards, on existing machines
- 2 Mounting possibilities: housing mounting or cylindrical hole mounting (mounting cut out 38.5 – 40 mm Ø) – see picture above.
The housing of sensors with digital output are larger and need as mounting cut a longhole R 19 with a length of 54 mm - Easy calibration to customized material by operator – zero and gain calibration is required
- With high quality strain gauge bridge
- Tension sensor with mechanical overload protection
Standard Features
- Tension sensor FSL with aluminium housing
- Required power supply +15…24 V DC (regulated)
- Certificate of Compliance with the order 2.1 according EN 10204 is included
- Optionally available: Inspection Certificate 3.1 according EN 10204 with calibration report
Available Models
| Model | Tension Range |
Measuring Head Width* |
SCHMIDT Calibration Material** |
| FSL-50 | 0 – 50 cN | 150 mm | PA: 0.12 mm Ø |
| FSL-100 | 0 – 100 cN | 150 mm | PA: 0.12 mm Ø |
| FSL-200 | 0 – 200 cN | 150 mm | PA: 0.12 mm Ø |
| FSL-500 | 0 – 500 cN | 150 mm | PA: 0.20 mm Ø |
| FSL-1000 | 0 – 1000 cN | 150 mm | PA: 0.30 mm Ø |
Other tension ranges and measuring head widths available on request.
Other measuring units available, such as g.
* Outside dimensions of front plate
** Suitable for 95 % of applications PA = Polyamide Monofilament
Calibration to customized material:
If process material differs significantly from the SCHMIDT calibration material in diameter, rigidity or shape, special calibration using customer supplied samples is recommended. For this purpose a material sample of about 5 m should be supplied.



Cable for USB output to connect the tension meter to a PC.
For displaying and saving readings on a PC (Win 7 and higher; 32 bit and 64 bit).
Connector suitable for sensors of FS series,
Plug suitable for sensors of FS series,
Connecting cable for an analog output.
Connecting cable for an analog output.
Connecting cable for analog output.
Connecting cable for tension sensor FS1 with RS-232 interface – Code 232:
Extension cable for RS-232 connecting cable EK0640, length 2 m
Adapter from RS-232 to USB.
Output signal: 0 – 1 V DC




