Measuring Equipment » Ring/Plate-Tensiometer TE 3

Technical data

• Applications
• Advantages
• Method
• Software
• Technical Data

The configuration of the LAUDA TE 3 is matched to the application. This saves costs and increases efficiency. The individual measuring bodies (ring, plate) for surface tension measurement can be chosen. The measuring program is included. If the contact angle is measured as well, several different sample holders can be selected.

Depending on the external conditions and the precision required, thermostating or two-fold protection with a thermostatable glass bell cover may be required. The same applies to the connection of dosimats to the system. LAUDA offers the necessary accessories, including its proven LAUDA thermostats.

Wetting force range and resolution	mg	± 1300	± 0.0001
Surface tension with Du Noüy ring	mN/m	2...100
Surface tension with Wilhelmy plate	mN/m	2...300
Resolution surface tension	mN/m	± 0.01
Max. stroke and stroke resolution	mm	80	± 0.001
Density measuring range and resolution	g/cm3	< 2.0	± 0.001
Speed of stage movement	mm/min	0.1...50	PC controlled
Temperature range	°C	-30...150
Integrated magnetic stirrer			PC controlled
Interfaces		2 x Special RS 232C, 9-Pol (1)
Dimensions of TE 3 measuring desk (WxDxH)	mm	240 x 240 x 600
Dimensions of TE 3 control unit (WxDxH)	mm	340 x 240 x 105
Weight of TE 3 measuring desk	kg	8
Weight of TE 3 control unit	kg	4
Power consumption	kW	0.1
Power supply	V; Hz	90...240; 50/60

(1) for connection of 2 Metrohm 765 burettes

Measuring bodies

• Du Noüy ring (Pt/Ir alloy (80/20), circumference: 60 ± 0.2 mm, wire diameter 0.4 mm, weight: 1.6 g)
• Wilhelmy plate (Pt, 19.9 x 10 x 0.1 mm), circumference: 40 ± 0.2 mm, weight: 2 g
• Plunger density measuring Boro-silicate glass (Vol: 1 cm3)
• Sample holder for contact angle measurement on platelets and fibres
• Sample holder for powder Boro-silicate glass tube (Ø 1 cm with 0.1 ml scale, max. filling volume: 2 ml)
• Standard weight (ring 500 mg, plate 100 mg)

Standard accessories

• Clutch fastening (for mounting of measuring bodies and sample holders)
• Allen key (size 09, 2, 3)
• Open-end wrench
• Tweezers
• Sample beakers (10 pcs., Ø 8 cm)
• Mains cable
• Connecting cable for RS 232
• Software for surface/interfacial tension and CMC determination
• Connecting cable for control unit/measurement desk
• Plastic case

CMC measuring accessories

• "Reverse" CMC measuring set
• Burette 765
• Dosing and aspiration capillaries
• PTFE tubes and adapter

Metrological standards

• DIN 53914