Surface Tension Measurement » LAUDA Ring/Plate-Tensiometer TD 2

Technical data

• Applications
• Advantages
• Method
• Technical Data

Economical introduction into the world of tensiometry

Measurement type		Surface and interfacial tension, density, weight
Measurements Surface-/Interfacial tension	mNm	¹300 (ring)
- Resolution	mNm	0.01
Measurements Surface-/Interfacial tension	mNm	<999 (plate)
- Resolution	mNm	0.01
Density measurement	kg/m³	<2000
- Resolution	kg/m³	±1
Weighing	mg	<5000
- Resolution	mg	±0.1
Temperature range	°C	5...85
- Resolution	°C	0.1
- Accuracy	°C	±0.5
Temperature measuring		Digital (optional)
Calibration		Calibration weight (ring: 500 mg / plate: 100 mg)
Display		Graphic display 320 x 240, 11x 40 characters
Measuring mode selection		Menu-controlled (ring/plate/density/weight)
Parameter input		Menu-controlled
Sample destination		Numerical
Measuring point interval	Minutes	1-120, selectable
Data storage	Results	Max. 500, with date and time
Stage movement		DC motor
- Stroke speed	mm/s	selectable in 10 steps from 0.1 -1
- max. stroke	mm	80
Maximum detection		Scanning from 10 to 100%, automatic
Ring correction		Automatic according Zuidema and Waters
Magnetic stirrer		Control integrated; table with stirrer optional
Stability criterion		Standard deviation by user-defined 3-9 measurements
Interface		RS 232
Documention		Printer, PC (optional)
Data transfer Software		For PC based on WINDOWS 98 SE and higher (optional)
Dimensions measuring stand (WxDxH)	mm	250 x 120 x 250
Weight	kg	ca. 4.0
Power consumption	kw	0.01
Power supply		External power adapter, 90- 264 V; battery adapter (optional)

Standard accessories

• Two-legged ring Circumference: 60 ± 0.2 mm, Ø 0.37 mm
• Calibration weight (ring): 500 mg
• Plunger: 0.5 cm³
• Tweezers
• Spare thread with hook
• Set of 10 sample beakers Ø 5 cm
• Wilhelmy plate: WxDxH: 19.6 x 0.05 x 10 mm
• Glass immersion plunger for density fixing

Recommended accessories

• Calibration weight (plate/frame) 100 mg
• Double-walled glass tempering vessel (inc. cover) Ø 5 cm
• Set of 10 sample beakers Ø 8 cm
• Spare silk thread, approx. 1 m
• Tempering stage with magnetic stirrer (optional)
• Digital temperature sensor for measuring in probes
• Data transfer software (PC) under Windows (optional)

Measuring technology standards

• DIN 53914
• DIN 53993
• ASTM D971
• ISO 304
• ISO 4311
• ASTM D1331
• ASTM D1590
• ISO 6295
• ISO/DIS 1409.2