Data-Logging Digital Tension Meter

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Small angle of contact minimizes twisting interference

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For Yarns, Fibers, Wire, Cables, Optic Fibers, Tire Cord, Webs & Warps, Tapes & Bands, Tows, Ribbons & more

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9 ranges, 0.1 - 200.0 g to 5 - 50 Kg

The new CHECK-LINE® DTMX Digital Tension Meters accurately measure the running line tensions of yarns, fibers, wires, cables, optic fibers and similar process materials.

It's unique design combines the latest microprocessor technology with the reliability, simplicity and ruggedness found in CHECK-LINE mechanical tension meters.

The DTMX provides the critical process information required to meet today's strict quality reporting systems mandated under ISO 9000 guidelines.

• A built-in memory for 100 data values and statistics
• Download capability of stored data and statistics to printers, computers or chart recorders
• Hand-held or continuous on-line use

Kit Contents

DTMX Data-logging Digital Tension Meter Four (4) AA batteries Output connector Operating instruction manual Carrying case

Features

• Precision Strain Gauge Sensing for Highest Accuracy
  A precision strain-gauge sensing system accurately measures the force on the middle sensing roller. This is converted into a highly accurate tension measurement using proprietary calibration formulas which correct for material diameters, rigidities, gravity and other critical parameters.
• Thickness Compensator Automatically Adjusts Calibration
  The microprocessor automatically fine-tunes the calibration to correct for different material diameters permitting a single DTMB or DTMX to be used on a wide range of process materials without sacrificing precision or accuracy.
• Field Adjustment for Fine Tuning of the Calibration
  Increase or decrease the displayed readings in 1.5% increments or select Special Calibration (SP).
• User-Selected Calibration Formulas For Highest Accuracy
  Select "Textile", "Wire", or "Special" calibration (SP1 or SP2). Special calibration is performed by the factory or by the end user with a specific sample of the process material.
• High-Speed Measurement Captures Max, Min & Peak Tension Values
  Tensions are sampled 62 times per second and averaged over a user selected interval of 0.5, 1, 2 or 4 seconds. The maximum, minimum and peak values are stored for recall to the display.
• Precision V-Grooved Rollers for Line Speeds Up to 5,000 m/min
  Ball-bearing mounted, V-grooved rollers are hard coated aluminum for speeds up to 2,000 m/min. Optional High-Speed Rollers (U) are offered for 5,000 m/min. Hardened steel, ceramic and plastic rollers are also available
• Rugged Aluminum Housing For Long-Term Durability
  Die-cast aluminum housing and surface-mount electronics insure trouble free operation in the toughest environments.
• Store Tension Data & Output to Printers & Computers
  Store tension data on-demand or continuously with the DTMX built-in datalogger. Stored data and statistics can be output to printers, computers or chart recorders.

Advanced Features

• Built-in Datalogger: The DTMX built-in datalogger stores up to 100 tension values and automatically calculates maximum, minimum, peak, average and standard deviation values. The data values and summary statistics can be recalled to the display for viewing or downloaded to a printer or Personal Computer.
• The datalogger can be set to store in two different modes. In the On-Demand Mode, a tension value is stored, each time the STORE key is pressed. In the Continuous Mode, the STORE key is pressedto start continuous datalogging. Each displayed value will be stored until the memory is filled or until the STORE key is pressed again to stop the datalogging. The stored data is retained in memory for the life of the batteries.

Applications

Yarns Fibers Wire Cables Optic Fibers

Tire Cord Webs & Warps Tapes & Bands Tows Ribbons

Specifications

*Accuracy	± 0.5% Full Scale, ± 1 digit (10 - 90% of Full Scale) ± 3.0% Full Scale, ± 1 digit (Remaining portion of range)
Measuring Frequency	62 measurements/second
Deflection of Sensing Roller	0.2 mm (maximum)
Overload Capacity	200% of Full Scale
Display	4-Digit LCD, 12 mm high
Display Update Rate	0.5, 1.0, 2.0 or 4.0 seconds, dip-switch selectable
Standard Memory	Last, maximum, minimum and peak
Field Calibration Adjustment	± 7 steps, 1.5% per step
Battery Type	Four (4) 1.5 V AA (included)
Battery Life	20 hours, continuous use
Auto Power Off	After 2 minutes of non-use
Roller Material	Hard Coated (Standard) Hardened Steel (ST) (optional) Ceramic (CE) (optional) Plastic (PL) (optional)
Maximum Speed	2000 m/min (standard) 2500 m/min (U)
Housing Material	Die-cast Aluminum
Weight	1.43 lbs. (650 g)
Operating Temperature	32 to 132 °F (0 to 45 °C)
Warranty	One year
Memory Capacity	100 values plus maximum, minimum, average, peak, standard deviation and memory location
Memory Operation	Continuous Mode: Automatic storage of each displayed value until memory is full On-Demand Mode: Displayed value is stored when STORE key is pressed
Serial Output	RS-232C (4800 baud, 8 bit word length, no parity, 2 stop bits)
Analog Output	0-1 VDC, proportional to tension range
AC Adapter (optional)	6 VDC @ 300 mA, for continuos in-line use

* Quoted accuracy can only be gauranteed on standard factory calibration materials. Because of the wide variety of customer samples, accuracy may exceed standard tolerances.

Ranges

Notes

1. Application Guidelines for Textiles refer specifically to nylon monofilament.
2. Application Guidelines for Wire refer to soft annealed copper wire
3. DTMB models are calibrated with monofilaments only.
   If customer sample varies greatly in diameter or rigidity,
   special calibration with customer sample is recommended.

*These models require customer supplied samples for calibration.

Special Purpose Models

Optic Fibers - FTMX Uses low-inertia, 32 mm dia. rollers for fragile materials sensitive to bending over a small radius. Rollers are available in plastic or aluminum. Tension Ranges (g): 0-200, 0-500, 50-1000, 200-2000

Limited Access - DTFX Long, flat fingers and miniature V-grooved rollers permit measurement in areas with limited space or tightly grouped filaments. Tension Ranges (g): 0-200, 0-500, 50-1000, 200-2000

Tapes and Bands - RTMX BTMX Cylindrical rollers are available in 10, 15, 20 and 30 mm widths with single or dual flanges. Tension Ranges (g): Refer to Application Guide

Lever Model - DTMXL The Lever is used instead of the thumb-piece for high tension applications. The lever is optional on the 10 Kg and 20 Kg model

Related Products

Roller Guide Available Rollers for Hand-Held Tension Meters

Downloads

DTMX Data-logging Digital Tension Meter - Calibration

DTMX Data-logging Digital Tension Meter - Instruction Manual

DTMX Data-logging Digital Tension Meter - Data Sheet