DTMX Data-logging Digital Tension Meter

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Data-Logging Digital Tension Meter

Small angle of contact minimizes twisting interference

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

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

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

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Features
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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

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Specifications
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*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.

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Ranges
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Model	Range	Outer Roller Spacing c:c	Textiles	Wire
DTMX-200	0.1 - 200.0 g	38 mm	1000 Denier	0.15 mm (max)
DTMX-500	0.1 - 500.0 g	38 mm	0.05-0.25mm	0.05-0.25 mm
DTMX-1K	50 - 1000 g	38 mm	0.10 - 0.40 mm	.10 - 0.25 mm
DTMX-2K	200 - 2000 g	38 mm	0.30 - 0.70 mm	0.30 - 0.70 mm
DTMX-2.5KB	250 - 2500 g	100 mm	0.30 - 0.70 mm	0.30 - 0.70 mm
DTMX-5KB	500 - 5000 g	100 mm	0.50 - 1.20 mm	0.40 - 1.00 mm
DTMX-10KB	1.00 - 10.00 Kg	100 mm	0.70 - 1.40 mm	0.70 - 1.20 mm
DTMXL-20KB*	2.00 - 20.00 Kg	200 mm	1.00 - 2.00 mm	1.50 - 1.70 mm
DTMXL-50KB*	5.00 - 50.00 Kg	200 mm	1.50 - 3.00 mm	1.70 - 3.00 mm

Notes

Application Guidelines for Textiles refer specifically to nylon monofilament.
Application Guidelines for Wire refer to soft annealed copper wire
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.

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Special Purpose Models
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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