DTMB Basic unit for many applications

The DTMB Basic unit for many applications is no longer available and has been replaced by DTS Series.
Click here to see the DTS Series.

Made in Germany Electronic tension meter manufactured for applications with yarns, fibers, wires, cables, optic fibers, tire cord, webs & warps, tapes & bands, tows, ribbons etc.

Easy mounting For online application, built-in material thickness compensator with material sample inserted

Field adjustment function
for fine tuning of the calibration for materials which differ from factory standard calibration material; the displayed value can be increased or decreased in ±1.5% increments.

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

Features

Precision strain gauge sensing for highest accuracy measures force on middle sensing roller
Selectable update rates (0.5, 1, 2 or 4 seconds) to provide steady readings when tensions fluctuate (electronic damping)
Recall of measured MIN, MAX and PEAK values
Zero adjustment feature permits use of the tension meter in various measuring positions, maintaining highest accuracy
Built-in mounting holes permit fixed installation for online use
Everything in operator's view:
- the guide rollers
- the measured material
- the readings
Measuring frequency: 62 measurements/second
The display shows averaged values calculated during the update interval t1
Calibration to customer supplied material is available (up to two different material calibrations)
Filament guide and roller shifting mechanism ensure easy acquisition of the running material
Ball-bearing mounted, V-grooved guide rollers for Line Speeds up to 2,000 m/min
Rugged aluminum housing for long-term durability
Battery operated (AC adapter for continuous operation available)
Specific Test Report with Calibration report optionally available
Material thickness compensator for better accuracy
Microprocessor automatically fine-tunes the calibration to correct for different material diameters.

Dimensions

Special Purpose Models


Optic Fibers	Limited Access
• FTMB 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	• DTFB 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	Lever Model
• RTMB • BTMB Cylindrical rollers are available in 10, 15, 20 and 30 mm widths with single or dual flanges. Tension Ranges (g): Refer to Application Guide	• DTMBL The Lever is used instead of the thumb-piece for high tension applications. The lever is optional on the 10 Kg and 20 Kg models; it is standard

Calibration

Model	Tension Range g	Factory Calibration Material PA***	Material thickness compensator
DTMB-200	0.1 - 200.0	0.12 mm Ø
DTMB-500	0.1 - 500.0	0.12 + 0.20 mm Ø	Built-In
DTMB-1K	50 - 1000	0.20 + 0.40 mm Ø	Built-In
DTMB-2K	200 - 2000	0.40 + 0.70 mm Ø	Built-In
DTMB-2.5KB	250 - 2500	0.40 + 0.70 mm Ø	Built-In
DTMB-5KB	500 - 5000	0.60 + 1.20 mm Ø	Built-In
DTMB-10KB	1.00 - 10.00 kg	0.80 + 1.40 mm Ø	Built-In
DTMBL-20KB	2.00 - 20.00 kg	1.20 + 1.80 mm Ø
DTMBL-50KB	5.00 - 50.00 kg	steel rope 1.5mm Ø (7x7x0.2)
******* Suitable for 95% of applications
Calibration to customized material: If process material differs significantly from the factory 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.

Tension Ranges

Model	Ranges (cN)	Head width *	Calibration Material	Textile industry applications	Wire Industry Applications
DTMB-200	0.1 - 200.0	65	0.12mm Ø	max. 200 tex	max. 0,15 mm Ø
DTMB-500	0.1 - 500.0	65	0.12 + 0.20 mm Ø	20-500 tex	0.05 - 0.25 mm Ø
DTMB-1000	50 - 1000	65	0.20 + 0.40 mm Ø	10-1000 tex	0.10 - 0.40 mm Ø
DTMB-2000	200 - 2000	65	0.40 + 0.70 mm Ø	300-2000 tex	0.30 - 0.60 mm Ø
DTMB-2500	250- 2500	116	0.40 + 0.70 mm Ø	400-2500 tex	0.30 - 0.60 mm Ø
DTMB-5000	500- 5000	116	0.60 + 1.20 mm Ø	800-5000 tex	0.40 - 1.00 mm Ø
DTMB-10K	1.00 - 10.00 daN	116	0.80 + 1.40 mm Ø	1500- 10000 tex	0.70 - 1.20 mm Ø
DTMB-20K-L	2.00 - 20.00 daN	216	1.20 + 1.80 mm Ø	2500- 20000 tex	1.00 - 1.70 mm Ø
DTMB-50K-L	5.00 - 50.00 daN	216	Steelrope 1.5 mm Ø (7 x 7 x 0.2)	6000- 50000 tex	1.40 - 2.00 mm Ø
Other measuring head widths are available on request. Other units of measure are available in g or kg and oz or lb. 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* on all models except DTMB-200 and DTMB-50K-L Special calibration using customer supplied samples is recommended, if process material differs significantly from the SCHMIDT calibration material in diameter, rigidity or shape. For this purpose a material sample of about 5 m should be supplied.

Complete Kit

Delivery includes:
Tension meter with carrying case and batteries, operating instructions in English or German as requested

Optional available
DTM-AC-115 AC adapter 6 V DC for 115 V AC
DTM-AC-230 AC adapter 6 V DC for 230 V AC

Specifications

Calibration:	According to SCHMIDT factory procedure
Accuracy:	for 10% to 90% of range: ± 0.5% full scale and ± 1 digit remaining range and other calibration material: ± 3% full scale and ± 1 digit
Overrange:	Approx. 15% full scale, without accuracy guarantee
Overload protection:	100% of tension range
Measuring principle:	Strain gauge bridge
Measuring roller deflection:	0.2 mm max.
Signal processing:	Digital
Measuring frequency:	62 measurements/sec
Converter:	12 bit A/D
Temperature coefficient:	Gain: less than ± 0.01% full scale/°C Zero point: less than ± 0.3% full scale/°C
Display:	4-digit LCD, 12 mm high
Display update rate:	0.5,1,2 or 4 seconds selectable
Memory:	Last, MIN, MAX, PEAK values
Field adjustment:	± 7 steps in 1.5% increments
Temperature range:	10 - 45ºC
Air humidity:	85% RH, max.
Power supply:	4 size AA batteries 1.5 V (about 20 hours of continuous use)
Auto power off:	After 2 minutes of non-use
Housing material:	Die-cast aluminum
Housing dimensions:	235 x 76 x 45 mm (L x W x H)
Weight, net (gross):	Up to DTMB-10K approx. 680 g (1500 g) DTMB-20K-L and higher approx. 1000 g (2200 g)