Tension Meters DTFB, DTFX

3 Tension ranges from 2 - 200 cN to 50 - 1000 cN

Special tension meter for sensitive materials as optical fibres, carbon fibres, technical fibres etc.
Hand-held unit with large guide rollers (32 mm groove diameter) to minimize material deflection

Tension meter with special guides on the bracket assembly for easy thread

Special Features

  • Large, V-grooved guide rollers with 32 mm groove diameter, ball-bearing mounted
  • Large bending radius assures gentle handling of the material being measured
  • Special guides on the bracket assembly permit easy material acquisition
  • Tension meter model DTFX is calibrated using only PA monofilament!
  • The design is otherwise according to model DTMB respectively model DTMX, but no material thickness compensator

    For additional Information, see model DTMB and DTMX

Standard Features

  • Everything in operators view:
    - the guide rollers
    - the measured material
    - the readings
  • Filament guide and roller shifting mechanism ensure easy acquisition of the running material
  • V-grooved guide rollers, ball-bearing mounted
  • Tension meter with rugged aluminium housing
  • Certificate of Compliance with the order 2.1 according EN 10204 is included
  • Optionally availlable: Inspection Certificate 3.1 according EN 10204 with calibration report

Available Models

Head Width
Calibration Material
DTFB-200DTFX-2002.0 - 200.00.1 cN140PA: 0.12 mm
DTFB-500DTFX-5005.0 - 500.00.1 cN140PA: 0.20 mm
DTFB-1000DTFX-100050 - 10001 cN140PA: 0.30 mm
Other units of measure available, such as g.
* Outer distance between outside guide rollers
** 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.

Guide Rollers

Line Speed
Roller Material
Standard4000Hardcoated aluminium
Code T4000Plastic (PVC) red

Click the order-code, to get picture and drawing of the guide rollers

Spare Rollers

Guide Rollers

Click picture to get an
overview for the guide rollers

Accessories (optional)

AC Adapter DTM-AC

100 - 240 V AC, 50 - 60 Hz with 3 adapters (EU/USA/UK)
Order number: K50100

Click picture for more information

Note: For model DTFB the AC Adapter is available as accessories only

Accessories DTFX (optional)

Tension Inspect 3

For displaying and saving readings on a PC (Win XP and higher; 32 bit and 64 bit)
Attention: It is not possible to readout the internal memory
Order number: SW-TI3

Click picture for more information

Connecting Cable DTMX-CA

Connecting cable for analog signal, length 1.5 m
Order number: EK0671

Click picture for more information

Connecting Cable DTMX-CC

For printer and PC connection, length 2 m
Order number: EK0672

Click picture for more information

Adapter DTMX-USB

from RS 232 to USB, with cable 0.5 length
Order number: EBG510

Click picture for more information

Calibration Report (optional)

Calibration Report

Inspection Certificate 3.1 according DIN EN 10204
including a calibration report is optional available

Click picture for more information

Ordering Example

To place an order Model with
Code for
guide rollers
(if not standard)
Order No.
Please indicate the com-
plete order number, e. g.:
DTFB-200 + T = DTFB-200-T

Delivery Includes

scope of delivery tension meters DTFB/DTFX: Tension meter with carrying case, batterie, operating instruction in german or english (as requested), Certificate of Compliance with the order 2.1 according EN 10204 free of charge


Dimensions For PDF-file please
click picture


Model DTFB:

Calibration:According to SCHMIDT factory procedure
Accuracy:From 10 % up to 90 % of tension range:
0.5 % full scale and 1 digit
remaining tension ranges and other calibration material:
3 % full scale and 1 digit
Overrange:Approx. 15 % full scale, without accuracy guarantee
Overload protection:100 % of tension range
Measuring principle:Strain gauge bridge
Measuring roller deflection:0.2 mm max.
Signal processing:Digital
Measuring frequency:62 Messungen/s
Converter:12 bit A/D
Temperature coefficient:Gain: less than 0.01 % full scale/C
Zero point: less than 0.3 % full scale/C
Display:LCD 4 digit, 12 mm high
Display update time:Adjustable 0.5, 1, 2 oder 4 s (averaging)
Field adjustment:7 steps in 1.5 % increment
Memory:MIN, MAX, PEAK and last value
Temperature range:10 - 45 C
Air humidity:85 % RH, max.
Power supply:4 Batteries 1.5 V, size AA (approx. 20 h continuous use)
Auto power off:After 2 min of non-use
Housing material:Die-cast aluminium
Dimensions:See dimensions above
Weight, net (gross):Approx. 680 g (approx. 1500 g)

Expanded memory:

Additonal specifications model DTFX:

Max. 100 readings, MAX, MIN, and PEAK as well as average values and standard deviation
Digital output signal:RS 232 C (4800, 8, N, 2)
Analog output signal:0 - 1 V DC (converter rate 16 ms)
Digimatic interface:Mitutoyo

Specifications subject to change without notice!



New Tension Meter


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


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