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DTSL Heavy-Duty
Hand-Held Digital Tension Meter

Click images to enlarge.
4 Tension ranges available from 150 - 2500 g up to 6 - 60 Kg
For use on cables, ropes, wires, buffer tubes, optic fiber tows etc. up to 10 mm, as well as flat material up to 10 mm width
Large, hardened guide rollers for minimized material deflection with 29.5 mm groove. Option Roller Codes R4 and R5 are available for large diameter cables.


  • Large 30 mm diameter V-grooved rollers fabricated from Hardened Steel for materials up to max. 5 mm diameter)
  • Optional U-Grooved Rollers (Code "R1"), Flat Cylindrical Rollers 6mm width between flanges (Code "B6) or 10mm width between flanges (Code "B10")
  • Large diameter rollers for minimize material deflection
  • 3 different display modes:
    – numeric
    – numeric with bargraph
    – numeric with graph (Time-Tension)
  • Automatic "Zero-Setting" in all measuring positions using built-in gravity sensor
  • 4 Seperate Calibration Material memory locations for custom calibrations (can be performed by end-user and saved with alpha-numeric name)
  • User-set Min and Max alarms with indication on LCD if reading is out of limits
  • User-Selectable units of measurement: cN, daN, g, kg, N, lb
  • Storage of Min, Max and Last reading as well as Hi-Peak, Low-Peak, average and standard deviation
  • High speed internal data sampling (8 kHz) for capture of accurate Min & Max Peaks
  • Setup parameters can be password protected so they are not accidentally changed by the user
  • Rugged aluminium housing with rubberized handle provides a secure and comfortable grip
  • Rechargeable Lithium Polymer Battery provides 40 hours of continuous operation
  • CE certified with 1-Year Warranty
  • NIST-Traceable Calibration Certification in optionally available

Tension Range

ModelTension RangeResolutionMeasuring Head Width*
DTSL-2500150 – 2500 grams or cN1 gram or cN185 mm
DTSL-5000250 – 5000 grams or cN1 gram or cN185 mm
DTSL-10K1 – 10 Kg or daN0.01 Kg or daN235 mm
DTSL-20K2 – 20 Kg0.01 Kg or daN235 mm
DTSL-50K-R45 - 50 Kg0.01 Kg or daN226 mm
DTSL-50K-R55 - 50 Kg0.01 Kg or daN226 mm
DTSL-60K-R46 - 60 Kg0.01 Kg or daN276 mm
DTSL-60K-R56 - 60 Kg0.01 Kg or daN276 mm
* Width of bracket assembly

Roller Guide

Order-CodeLine Speed vmax. … m/minRoller Material
Standard4000Hardened steel
Code R14000Hard-chromed steel (Radius R5)
Code R41000Hardened steel (radius R8), for material diameter 8 – 11 mm
Code R51000Hardened steel (radius R8), for material diameter 12 – 15 mm
Code B62000Hardened steel (width 6 mm)
Code B102000Hardened steel (width 10 mm)


Online Mounting Code MH
To mount the gauge for online use, the housing can be equiped with mounting threads. There are to bolts with M5 female thread on the rear side. This feature cannot be installed afterwords.


Complete Kit

Tension meter DTSL with carrying case, accumulator and AC adapter with country adapters (EU, US, UK), Certificate of compliance with the order 2.1 according EN 10204 free of charge, operating instruction in german or english (as requested)


Calibration:According SCHMIDT factory procedure
Accuracy:For PA from 5 % up to 100 % FS*:
± 0.5 % FS* ± 1 digit
remaining tension range and other calibration materials:
±3 % full scale and ±1 digit
Memory for material curves:1 for SCHMIDT calibration plus 4 for customized calibrations
Measuring units:Force (switchable): cN, daN, g, kg, N, lb Thickness (switchable): mm, inch
Overrange:Approx. 10 % FS*, full scale, without accuracy guarantee
Overload protection:100 % full scale
Measuring principle:Strain gauge bridge
Signal processing:Digital, 16 bit A/D converter
Measuring frequency:Max. 1 kHz (1000 measurings/sec.), intern 8 kHz
Measuring roller deflection:Max. 0.2 mm
Display:Graph LCD
3 different displays:Numeric
Numeric with graph (time-tension)
Display update rate:Approx. 2 times per second
Damping:Adjustable electronic damping (averaging)
Cal. Adjustment:± 10 steps in 1 % increment
Thickness compensation:Max. 2.5 mm (not available for all models)
Auto power off:Approx. 3 minutes of non-use
Temperature coefficient:Gain: less than ± 0.01 % FS* /°C
Zero point:less than ± 0.03 % FS* /°C
Temperature range:10 – 45 °C
Air humidity:85 % RH, max.
Power supply:LiPo accumulator (approx. 40 h continuous use), charging time approx. 3 1/2 h AC adapter 100 – 240 V AC, adapter (EU, USA, UK)
Housing material:Die-cast aluminium
Housing dimensions:(see Dimensions)
Weight, net (gross):approx. 940 g / 1620 g
Replacement BatteryE08711-X
Replacement ChargerUSB-MINI-CHARGER

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