The Schmidt DTMB Digital Tension Meter accurately measures the running line tensions of yarns, fibers, wires, cables, optic fibers and similar process materials.
The DTMB provides critical process information required to meet today's strict quality reporting systems mandated under ISO 9000 guidelines.
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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). - 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. - NIST-Traceable Calibration Certification optionally available
- Rugged Aluminum Housing For Long-Term Durability
Die-cast aluminum housing and surface-mount electronics insure trouble free operation in the toughest environments.
DIP switch for adjustment by operator e. g. display update rate
• Saving MIN, MAX and PEAK values during a user-selected period. These values can be recalled at the display.
Material thickness compensator: For better accuracy the material to be measured or a similar material with the same diameter should be inserted
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.
| Model | Range | Outer Roller Spacing c:c | Application Guidelines (Textiles) | Application Guidelines (Wire) |
|---|---|---|---|---|
| DTMB-500 | 0.1-500.0 g | 38 mm | 0.05-0.25mm | 0.05-0.25 mm |
Specifications
| Accuracy* | ± 0.5% Full Scale, ± 1 digit (10 - 90% of Full Scale) ± 3.0% Full Scale, ± 1 digit (Rest of range & for other calibration materials) |
| Measuring Units | Kg / Lb standard cN / N Optional |
| Measuring Frequency | 16 m/sec (62.5 samples/sec) |
| 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) |