Tension Meter DTMB for EDM
3 Tension ranges from 0.1 - 500 cN to 250 - 2500 cN
Basic unit for easy operation
Tension meter DTMB for EDM
Special Features
top
- Microprocessor controlled tension meter for highest accuracy
- Selectable update rates (0.5, 1, 2 or 4 seconds) to provide steady readings when tensions fluctuate (electronic damping)
- Measuring frequency: 62 measurements/second
- The display shows averaged values calculated during the update
interval t1 e. g. every second 1 x
DIP switch
for adjustments
by operator e. g.
display update time
- Saving MIN, MAX and PEAK values during a user-selected period. These values can be recalled at the display.
- Zero adjustment feature permits use of the tension meter in various measuring positions, maintaining highest accuracy
- Measuring principle: double beam in bending with strain gauge
- Calibration to customer supplied material is available (up to two different material calibrations)
- Tension meter with built-in material thickness compensator improves accuracy for changing diameters (from tension range - 500 cN)
- Hand-held unit with built-in mounting holes permit fixed installation for online use
 | Easy mounting: For online application Material thickness compensator: For better accuracy the |
Standard Features
- Everything in operator’s view:
- the guide rollers
- the measured material
- the readings - Filament guide and roller shifting mechanism ensure easy acquisition of the running material
- Ball-bearing mounted, V-grooved guide rollers
- Tension meter with rugged aluminium housing
- Battery operated (AC adapter for continuous operation available)
- Certificate of Compliance with the order 2.1 according EN 10204 is included
- Optionally available: Insprection Certificate 3.1 according EN 10204 with calibration report
Available Models
| Model | Tension Range cN | Reso- lution | Measuring Head Width* mm | SCHMIDT Calibration Material PA** | Applications wire industry e.g. EDM wire | MDA*** |
| DTMB-500 | 0.1 - 500.0 | 0.1 cN | 65 | 0.12+0.20 mm Ø | ca. 0.05 mm Ø | X |
| DTMB-2000 | 200 - 2000 | 1 cN | 65 | 0.40+0.70 mm Ø | ca. 0.25 mm Ø | X |
| DTMB-2500 | 250 - 2500 | 1 cN | 116 | 0.40+0.70 mm Ø | ca. 0.25 mm Ø | X |
Other tension ranges and measuring head widths are available on request.
Other units of measure are available, such as g.
* Depending on model, either width of filament guide or outer distance between outside guide rollers.
** Suitable for 95 % of applications - PA = Polyamide Monofilament
*** Material Thickness Compensator
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 | |||||||
|
| Standard | 2000 | Hardcoated aluminium (R10003) |
| Code CE1 | 1000 | Ceramic |
Click the order-code, to get picture and drawing of the guide rollers
Accessories (optional)
 | AC Adapter 6 V DC for 230 V AC Order number: DTM-AC-230 |
| AC Adapter 6 V DC for 115 V AC Order number: DTM-AC-115 |
Calibration Report (optional)
 | Calibration Report Inspection Certificate 3.1 according DIN EN 10204 Click picture for more information |
Ordering Example
| To place an order | Model with tension range |
Code for |
Complete Order No. |
||
| Please indicate the com- plete order number, e. g.: |
DTMB-500 | + | CE | = | DTMB-500-CE |
Delivery Includes
 | Tension meter with carrying case, batteries, operating instruction in german or english (as requested), Certificate of compliance with the order 2.1 according EN 10204 free of charge |
Specifications
| Calibration: | According to SCHMIDT factory procedure |
| Accuracy: | From 10 % up to 90 % of tension range: ±0.5 % full scale and ±1 digit remaining tension range and other calibration materials: ±3 % full scale und ±1 digit |
| Overrange: | Approx. 15 % full scale, without accuracy guarantee |
| Overload protection: | 100 % |
| Measuring principle: | Strain gauge bridge |
| Measuring roller deflection: | Max. 0.2 mm |
| Signal processing: | Digital |
| Measuring frequency: | 62 measurements/s |
| Converter: | 12 bit A / D |
| Temperature coefficient: | Gain: less than ±0.01 % full scale/ºC Zero point: less than ±0.3 % full scale/ºC |
| Display: | LCD 4 digit, 12 mm high |
| Display update rate: | Adjustable 0.5, 1, 2 or 4 s (averaging) |
| Field adjustment: | ±7 steps in 1.5 % increment |
| Memory: | MIN, MAX, PEAK and last value |
| Temperature range: | 10 - 45 ºC |
| Air humidity: | 85 % RH, max. |
| Power supply: | 4 Batteries 1.5 V, size AA (Approx. 20 h continuous use) |
| Auto Power Off: | After 2 minutes of non-use |
| Housing material: | Die-cast aluminium |
| Housing dimension: | 235 x 76 x 45 mm (LxWxH) |
| Weight, net (gross): | Approx. 680 g (approx. 1500 g) |
Specifications subject to change without notice!
